Patent Publication Number: US-11643318-B2

Title: Hand-held dispenser and related methods

Description:
RELATED APPLICATIONS 
     This present application claims, under 35 U.S.C. § 119(e), priority to and all available benefit of U.S. provisional patent application Ser. No. 63/129,380 filed Dec. 22, 2020 for a HAND-HELD BEVERAGE DISPENSER AND RELATED FEATURES AND ACCESSORIES and U.S. provisional patent application Ser. No. 63/034,762 filed Jun. 4, 2020 for a HAND-HELD DISPENSER AND RELATED METHODS By this reference, the full disclosures of U.S. provisional patent application Ser. No. 63/129,380 and U.S. provisional patent application Ser. No. 63/034,762 are incorporated herein as though now each set forth in its respective entirety. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to post-mix drink dispensing, and, more particularly, but not by way of limitation, to hand-held beverage dispensers for delivering post-mix beverages, and to features and accessories for hand-held beverage dispensers, including arrangements for removal or attachment of post-mix type drink dispenser assemblies from or to hand-held beverage dispensers; connector assemblies for connecting flow control assemblies to hand-held beverage dispensers; and flow control assemblies used in connection with hand-held beverage dispensers. 
     2. Description of the Related Art 
     Post-mix type hand-held beverage dispensers, such as are often referred to as bar guns or soda guns are well known conveniences in the food and bar service industries, enabling beverages to be prepared as they are dispensed by mixing together a beverage product, such as, for example, a syrup or like concentrate, and a diluent, such as, for example, plain water or carbonated water. Although each of the variously utilized diluents is typically appropriate for use with a great variety of beverage products, any one beverage product will generally only be compatible with a particular diluent. Unfortunately, this presents a problem for currently available hand-held beverage dispensers implemented according to the current state of the art. In particular, the currently available hand-held beverage dispensers are simply not capable of readily changing the diluent to be utilized with respect to any particular fluid flow path through the dispenser. 
     Accordingly, a hand-held post-mix type drink dispenser readily configurable to dispense any available diluent in connection with any beverage product flow path will create, and meet, new demand in the drink dispensing industry. 
     SUMMARY OF THE INVENTION 
     A valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser, for selectively dispensing a demanded one of a plurality of post-mix beverages, generally comprises a selector valve and a flow control valve, each of which is substantially contained within a hand-held beverage dispenser; and a plurality of flow paths from without the hand-held beverage dispenser to the selector valve. The selector valve is adapted to establish passage therethrough of a user selectable one of the plurality of flow paths, while blocking passage therethrough of each of the plurality of flow paths other than the user selected flow path. The flow control valve, which is functionally independent of the selector valve, is adapted, upon actuation, to enable fluid discharge from the selected one flow path to without the hand-held beverage dispenser. The flow control valve and the said selector valve are preferably formed about a single valve body, and most preferably the flow control valve is integrally formed with said selector valve within the single valve body. 
     The valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser preferably includes a plurality of selector valves substantially contained within the hand-held beverage dispenser. In this case, each flow path of the plurality of flow paths from without the hand-held beverage dispenser runs to each selector valve of the plurality of selector valves. Likewise, the valve arrangement comprises a corresponding flow control valve substantially contained within said hand-held beverage dispenser for each selector valve, each selector valve being functionally independent of the corresponding flow control valve. Actuation of a flow control valve thus enables fluid discharge from the corresponding one of the plurality of flow paths to without the hand-held beverage dispenser. 
     The valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser most preferably comprises an additional plurality of flow paths, which are mutually exclusive of the first plurality of flow paths. A predetermined corresponding one of the additional plurality of flow paths is provided from without the hand-held beverage dispenser to each of the plurality of flow control valves. Each flow control valve is thus further adapted, upon actuation, to enable fluid discharge from the corresponding one of the additional plurality of flow paths to without the hand-held beverage dispenser. 
     In use of the most preferred embodiment of the valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser, for selectively dispensing a demanded one of a plurality of post-mix beverages, each selection valve determines, on an ad hoc basis, which of the first plurality of flow paths will be utilized at any given time, while the flow control valve provides single action simultaneous ON-OFF control of fluid flows through both the selected flow path from the selector valve and the predetermined flow path to the flow control valve. 
     In at least some implementations of the valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser, the selector valve is rotationally operated. In at least this case, the valve arrangement preferably further comprises a locking mechanism adapted to maintain each selector valve in a respective operable state, as opposed to being inadvertently left in a transitional state between operable states. In the preferred implementation of the present invention, the locking mechanism not only prevents inadvertent transition out of an operable state, but also precludes final assembly for use if any one of the selector valves is not in an operable state. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is an isometric view illustrating a hand-held beverage dispenser according to a first embodiment. 
         FIG.  2    is a right side elevational view illustrating the hand-held beverage dispenser according to the first embodiment. 
         FIG.  3    is a bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment. 
         FIG.  4    is a partially exploded bottom isometric view illustrating the removable nozzle housing of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  5    is a partially exploded top isometric view illustrating the removable nozzle housing of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  6    is a top isometric view illustrating the handle body of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  7    is a bottom isometric view illustrating the handle body of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  8    is a cross-sectional elevational view taken along lines  8 - 8  of  FIG.  6    illustrating the depopulated piping system within the handle body of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  9    is a partially cut away top isometric view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  10    is a partially cut away bottom isometric view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  11    is a partially cut away right side elevational view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  12    is a partially cut away left side elevational view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  13    is a partially cut away top plan view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  14    is a partially cut away bottom plan view illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  15    is a cross-sectional elevational view taken along lines  15 - 15  of  FIG.  13    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  16    is a schematic piping diagram, illustrating the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  17    is a cross-sectional top plan view taken along lines  17 - 17  of  FIG.  11    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  18 A  is a first detail view taken from  FIG.  16    illustrating various details of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  18 B  is a second detail view taken from  FIG.  16    illustrating various details of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  18 C  is a third detail view taken from  FIG.  16    illustrating various details of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  18 D  is a fourth detail view taken from  FIG.  16    illustrating various details of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  19    is a top isometric view of the cross-sectional view of  FIG.  17    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  20    is a right side isometric view of the cross-sectional view of  FIG.  17    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  21    is a rear end isometric view of the cross-sectional view of  FIG.  17    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  22    is a cross-sectional elevational view taken along lines  22 - 22  of  FIG.  13    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  23    is a cross-sectional top plan view taken along lines  23 - 23  of  FIG.  11    illustrating, in isolation, the depopulated piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  24    is a partially cut away top isometric view illustrating a representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  25    is a partially cut away bottom isometric view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  26    is a partially cut away right side elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  27    is a partially cut away top plan view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  28    is a partially cut away rear end elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  29    is a partially cut away front end elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  30    is a cross-sectional elevational view taken along lines  30 - 30  of  FIG.  27    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  31    is a cross-sectional elevational view taken along lines  31 - 31  of  FIG.  27    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  32    is a cross-sectional elevational view taken along lines  32 - 32  of  FIG.  27    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  33    is a top isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a first stage of assembly. 
         FIG.  34    is a cross-sectional elevational view taken along lines  34 - 34  of  FIG.  33    illustrating the hand-held beverage dispenser according to the first embodiment in the first stage of assembly. 
         FIG.  35    is a top isometric view illustrating a valve spool of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  36    is a right side elevational view illustrating the valve spool of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  37    is a cross-sectional elevational view taken along lines  37 - 37  of  FIG.  35    illustrating the valve spool of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  38    is a top isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a second stage of assembly. 
         FIG.  39    is a bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in the second stage of assembly. 
         FIG.  40    is a bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a third stage of assembly. 
         FIG.  41    is a top isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a fourth stage of assembly. 
         FIG.  42    is a top isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a fifth stage of assembly. 
         FIG.  43    is a right side elevational view illustrating the hand-held beverage dispenser according to the first embodiment in the fifth stage of assembly. 
         FIG.  44    is a partially exploded bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in the sixth stage of assembly. 
         FIG.  45    is a top isometric view illustrating a valve cup of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  46    is a bottom isometric view illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  47    is a top plan view illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  48    is a bottom plan view illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  49    is a bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a seventh stage of assembly. 
         FIG.  50    is a partially exploded top isometric view illustrating the hand-held beverage dispenser according to the first embodiment in an eighth stage of assembly. 
         FIG.  51    is a partially exploded bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in the eighth stage of assembly. 
         FIG.  52    is a top plan view illustrating the base plate of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  53    is a bottom isometric view illustrating the base plate of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  54    is a bottom isometric view illustrating the hand-held beverage dispenser according to the first embodiment in a ninth stage of assembly. 
         FIG.  55    is a partially exploded top isometric view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  56    is a top isometric view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment. 
         FIG.  57 A  is a bottom plan view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment in a first configuration. 
         FIG.  57 B  is a top plan view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment in a first configuration. 
         FIG.  58 A  is a bottom plan view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment in a second configuration. 
         FIG.  58 B  is a top plan view illustrating the cooperative adaptation of the base plate and a valve cup of the hand-held beverage dispenser according to the first embodiment in a second configuration. 
         FIGS.  59 A- 59 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the first embodiment in a first operative state, where: 
         FIG.  59 A  is a right side elevational view; 
         FIG.  59 B  is a cross-sectional top plan view taken along lines  59 B- 59 B of  FIG.  59 A ; 
         FIG.  59 C  is a top plan view; 
         FIG.  59 D  is a cross-sectional elevational view taken along lines  59 D- 59 D of  FIG.  59 C ; and 
         FIG.  59 E  is schematic piping diagram. 
         FIGS.  60 A- 60 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the first embodiment in a second operative state, where: 
         FIG.  60 A  is a right side elevational view; 
         FIG.  60 B  is a cross-sectional top plan view taken along lines  60 B- 60 B of  FIG.  60 A ; 
         FIG.  60 C  is a top plan view; 
         FIG.  60 D  is a cross-sectional elevational view taken along lines  60 D- 60 D of  FIG.  60 C ; and 
         FIG.  60 E  is schematic piping diagram. 
         FIGS.  61 A- 61 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the first embodiment in a third operative state, where: 
         FIG.  61 A  is a right side elevational view; 
         FIG.  61 B  is a cross-sectional top plan view taken along lines  61 B- 61 B of  FIG.  61 A ; 
         FIG.  61 C  is a top plan view; 
         FIG.  61 D  is a cross-sectional elevational view taken along lines  61 D- 61 D of  FIG.  61 C ; and 
         FIG.  61 E  is schematic piping diagram. 
         FIGS.  62 A- 62 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the first embodiment in a fourth operative state, where: 
         FIG.  62 A  is a right side elevational view; 
         FIG.  62 B  is a cross-sectional top plan view taken along lines  62 B- 62 B of  FIG.  62 A ; 
         FIG.  62 C  is a top plan view; 
         FIG.  62 D  is a cross-sectional elevational view taken along lines  62 D- 62 D of  FIG.  62 C ; and 
         FIG.  62 E  is schematic piping diagram. 
         FIG.  63    is a partially exploded bottom isometric view illustrating a first preferred embodiment of a mixer assembly removability arrangement, as particularly implemented in an extension to the hand-held beverage dispenser according to the first embodiment. 
         FIG.  64    is a top isometric view illustrating the mixer assembly removability arrangement according to the first embodiment. 
         FIG.  65    is a bottom isometric view illustrating the mixer assembly removability arrangement according to the first embodiment. 
         FIG.  66    is a partially exploded bottom isometric view illustrating the mixer assembly removability arrangement according to the first embodiment. 
         FIG.  67    is an isometric view illustrating a hand-held beverage dispenser according to a second embodiment. 
         FIG.  68    is a right side elevational view illustrating the hand-held beverage dispenser according to the second embodiment. 
         FIG.  69    is a bottom isometric view illustrating the hand-held beverage dispenser according to the second embodiment. 
         FIG.  70    is a partially exploded bottom isometric view illustrating the removable nozzle housing of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  71    is a partially exploded top isometric view illustrating the removable nozzle housing of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  72    is a top isometric view illustrating the handle body of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  73    is a rear end view illustrating the handle body of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  74    is a bottom isometric view illustrating the handle body of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  75    is a bottom plan view illustrating the handle body of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  76    is a cross-sectional elevational view taken along lines  76 - 76  of  FIG.  72    illustrating the depopulated piping system within the handle body of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  77    is a schematic piping diagram, illustrating the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  78 A  is a first detail view taken from  FIG.  77    illustrating various details of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  78 B  is a second detail view taken from  FIG.  77    illustrating various details of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  78 C  is a third detail view taken from  FIG.  77    illustrating various details of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  78 D  is a fourth detail view taken from  FIG.  77    illustrating various details of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  79    is a partially cut away top isometric view illustrating a representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  80    is a partially cut away bottom isometric view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  81    is a partially cut away right side elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  82    is a partially cut away top plan view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  83    is a partially cut away rear end elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  84    is a partially cut away front end elevational view illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  85    is a cross-sectional elevational view taken along lines  85 - 85  of  FIG.  82    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  86    is a cross-sectional elevational view taken along lines  86 - 86  of  FIG.  82    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  87    is a cross-sectional elevational view taken along lines  87 - 87  of  FIG.  82    illustrating the representative valve body of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  88    is a top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in an early stage of assembly. 
         FIG.  89    is a cross-sectional elevational view taken along lines  89 - 89  of  FIG.  88    illustrating the hand-held beverage dispenser according to the second embodiment in an early stage of assembly. 
         FIG.  90    is a top left isometric view illustrating a valve cup of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  91    is a top right isometric view illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  92    is a bottom plan view illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  93    is a cross-sectional elevational view taken along lines  93 - 93  of  FIG.  91    illustrating the valve cup of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  94    is a top isometric view illustrating a valve trim assembly of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  95    is a right side elevational view illustrating the valve trim assembly of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  96    is a cross-sectional elevational view taken along lines  96 - 96  of  FIG.  94    illustrating the valve trim assembly of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  97    is a top isometric view illustrating an upper seal of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  98    is a bottom isometric view illustrating the upper seal of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  99    is a side elevational view illustrating the upper seal of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  100    is a cross-sectional elevational view taken along lines  100 - 100  of  FIG.  97    view illustrating the upper seal of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  101    is an exploded top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a first stage of assembly. 
         FIG.  102    is a top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in the first stage of assembly. 
         FIG.  103    is a cross-sectional elevational view taken along lines  103 - 103  of  FIG.  102    view illustrating the hand-held beverage dispenser according to the second embodiment in the first stage of assembly. 
         FIG.  104    is a top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in the first stage of assembly. 
         FIG.  105    is an exploded top isometric view illustrating a preassembled valve trim arrangement of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  106    is an exploded bottom isometric view illustrating the preassembled valve trim arrangement of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  107    is a top isometric view illustrating the preassembled valve trim arrangement of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  108    is a cross-sectional elevational view taken along lines  108 - 108  of  FIG.  107    view illustrating the preassembled valve trim arrangement of a valve unit of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  109    is a partially exploded bottom isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a second stage of assembly. 
         FIG.  110    is a bottom isometric view illustrating the hand-held beverage dispenser according to the second embodiment in the second stage of assembly. 
         FIG.  111    is a top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in the second stage of assembly. 
         FIG.  112    is a bottom plan view illustrating the hand-held beverage dispenser according to the second embodiment in the second stage of assembly. 
         FIG.  113    is a top isometric view illustrating a valve trim retaining member of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  114    is a top plan view illustrating the valve trim retaining member of the piping system of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  115    is a partially exploded bottom isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a third stage of assembly. 
         FIG.  116    is a bottom plan view illustrating the hand-held beverage dispenser according to the second embodiment in the third stage of assembly. 
         FIG.  117    is a top isometric view illustrating a bottom cover of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  118    is a top plan view illustrating the bottom cover of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  119    is a rear end elevational view illustrating the bottom cover of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  120    is a partially exploded bottom isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a fourth stage of assembly. 
         FIG.  121    is a top isometric view illustrating a first exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  122    is a bottom plan view illustrating the first exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  123    is a cross-sectional elevational view taken along lines  123 - 123  of  FIG.  121    view illustrating the first exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  124    is a top isometric view illustrating a second exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  125    is a bottom plan view illustrating the second exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  126    is a cross-sectional elevational view taken along lines  126 - 126  of  FIG.  125    view illustrating the second exemplary button cap of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  127    is a partially exploded top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a fifth stage of assembly. 
         FIG.  128    is a top plan view illustrating a top cover of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  129    is a bottom isometric view illustrating the top cover of the hand-held beverage dispenser according to the second embodiment. 
         FIG.  130    is a partially exploded top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in a sixth stage of assembly. 
         FIG.  131    is a partially exploded top isometric view illustrating the hand-held beverage dispenser according to the second embodiment in the sixth stage of assembly. 
         FIGS.  132 A- 132 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the second embodiment in a first operative state, where: 
         FIG.  132 A  is a right side elevational view; 
         FIG.  132 B  is a cross-sectional top plan view taken along lines  132 B- 132 B of  FIG.  132 A ; 
         FIG.  132 C  is a top plan view; 
         FIG.  132 D  is a cross-sectional elevational view taken along lines  132 D- 132 D of  FIG.  132 C ; and 
         FIG.  132 E  is schematic piping diagram. 
         FIGS.  133 A- 133 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the second embodiment in a second operative state, where: 
         FIG.  133 A  is a right side elevational view; 
         FIG.  133 B  is a cross-sectional top plan view taken along lines  133 B- 133 B of  FIG.  133 A ; 
         FIG.  133 C  is a top plan view; 
         FIG.  133 D  is a cross-sectional elevational view taken along lines  133 D- 133 D of  FIG.  133 C ; and 
         FIG.  133 E  is schematic piping diagram. 
         FIGS.  134 A- 134 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the second embodiment in a third operative state, where: 
         FIG.  134 A  is a right side elevational view; 
         FIG.  134 B  is a cross-sectional top plan view taken along lines  134 B- 134 B of  FIG.  134 A ; 
         FIG.  134 C  is a top plan view; 
         FIG.  134 D  is a cross-sectional elevational view taken along lines  134 D- 134 D of  FIG.  134 C ; and 
         FIG.  134 E  is schematic piping diagram. 
         FIGS.  135 A- 135 E  illustrate a representative valve unit of the hand-held beverage dispenser according to the second embodiment in a fourth operative state, where: 
         FIG.  135 A  is a right side elevational view; 
         FIG.  135 B  is a cross-sectional top plan view taken along lines  135 B- 135 B of  FIG.  135 A ; 
         FIG.  135 C  is a top plan view; 
         FIG.  135 D  is a cross-sectional elevational view taken along lines  135 D- 135 D of  FIG.  135 C ; and 
         FIG.  135 E  is schematic piping diagram. 
         FIG.  136    is a partially exploded top isometric view illustrating a second preferred embodiment of a mixer assembly removability arrangement, as particularly implemented in an extension to the hand-held beverage dispenser according to the second embodiment. 
         FIG.  137    is a partially exploded bottom isometric view illustrating the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  138    is a partially exploded bottom isometric view illustrating various details of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  139    is a partially exploded right side elevational view illustrating various details of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  140    is a partially cut away bottom front end view taken along lines  140 - 140  of  FIG.  139    illustrating various details of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  141    is a top plan view illustrating various details of an exemplary mixer assembly suitable for use in the exemplary implementation of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  142    is a rear end elevational view illustrating a cover of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  143    is a partially cut away top front end view taken along lines  143 - 143  of  FIG.  139    illustrating various details of the mixer assembly removability arrangement according to the second embodiment. 
         FIG.  144    is a partially exploded right side view illustrating a preferred exemplary embodiment of a connector assembly as may form an extension to the hand-held beverage dispenser according to the second embodiment, the hand-held beverage dispenser according to the first embodiment, or other hand-held beverage dispensers more generally. 
         FIG.  145    is a top rear end isometric view illustrating a heel plate of the connector assembly according to the exemplary embodiment. 
         FIG.  146    is a rear end elevational view illustrating the heel plate of the connector assembly according to the exemplary embodiment. 
         FIG.  147    is a bottom front end isometric view illustrating an upper housing member of the connector assembly according to the exemplary embodiment. 
         FIG.  148    is a top front end isometric view illustrating a lower housing member of the connector assembly according to the exemplary embodiment. 
         FIG.  149    is a cross-sectional elevational view taken along lines  149 - 149  of  FIG.  146    view illustrating the heel plate of the connector assembly according to the exemplary embodiment. 
         FIG.  150    is an exploded isometric view illustrating an exemplary quick connect fitting of the connector assembly according to the exemplary embodiment. 
         FIG.  151    is an isometric view illustrating the quick connect fitting of the connector assembly according to the exemplary embodiment. 
         FIG.  152    is a side elevational view illustrating the quick connect fitting of the connector assembly according to the exemplary embodiment. 
         FIG.  153    is a partially exploded top isometric view illustrating integration of the connector assembly according to the exemplary embodiment with an exemplary suitable sheathed fluid line assembly. 
         FIG.  154    is a top isometric view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  155    is a right side elevational view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  156    is a partially exploded right side elevational view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  157    is a right side elevational view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  158    is a right side elevational view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  159    is a top isometric view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  160    is a top isometric view illustrating the integration of the connector assembly according to the exemplary embodiment with the exemplary sheathed fluid line assembly. 
         FIG.  161    is a partially exploded isometric view illustrating connection of the connector assembly according to the exemplary embodiment to an exemplary suitable hand-held beverage dispenser. 
         FIG.  162    is an isometric view illustrating the connection of the connector assembly according to the exemplary embodiment to the exemplary suitable hand-held beverage dispenser. 
         FIG.  163    is a right side elevational view illustrating the connection of the connector assembly according to the exemplary embodiment to the exemplary suitable hand-held beverage dispenser. 
         FIG.  164    is a partially exploded isometric view illustrating securement of the connector assembly according to the exemplary embodiment to the exemplary suitable hand-held beverage dispenser. 
         FIG.  165    is a partially exploded right side elevational view illustrating the securement of the connector assembly according to the exemplary embodiment to the exemplary suitable hand-held beverage dispenser. 
         FIG.  166    is a bottom plan view illustrating various details of a tubular sheath flange capture provision of the connector assembly according to the exemplary embodiment. 
         FIG.  167    is a cross-sectional elevational view taken along lines  167 - 167  of  FIG.  166    illustrating various details of the tubular sheath flange capture provision of the connector assembly according to the exemplary embodiment. 
         FIG.  168    is an isometric view illustrating the securement of the connector assembly according to the exemplary embodiment to the exemplary suitable hand-held beverage dispenser. 
         FIG.  169    is a side elevational view illustrating a preferred exemplary embodiment of a flow control assembly as may be suitably utilized in connection with the hand-held beverage dispenser according to the second embodiment, the hand-held beverage dispenser according to the first embodiment, or other hand-held beverage dispensers more generally. 
         FIG.  170    is a side elevational view illustrating a splash cover of the exemplary flow control assembly. 
         FIG.  171    is an isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  172    is an isometric view illustrating various details of the inverted exemplary flow control assembly. 
         FIG.  173    is a top plan view illustrating various details of the exemplary flow control assembly. 
         FIG.  174    is an isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  175    is a rear end elevational view illustrating various details of the exemplary flow control assembly. 
         FIG.  176    is a cross-sectional side elevational view taken along lines  176 - 176  of  FIG.  173    illustrating various details of the exemplary flow control assembly. 
         FIG.  177    is a cross-sectional side elevational view taken along lines  177 - 177  of  FIG.  173    illustrating various details of the exemplary flow control assembly. 
         FIG.  178    is a partially exploded isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  179    is a partially exploded isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  180    is a partially exploded isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  181    is a partially exploded isometric view illustrating various details of the exemplary flow control assembly. 
         FIG.  182    is a partially exploded isometric view illustrating various details of a fluid line connector assembly, as specially adapted for use in connection with the exemplary flow control assembly. 
         FIG.  183    is a partially exploded isometric view illustrating the exemplary fluid line connector assembly. 
         FIG.  184    is a bottom plan view illustrating various details of a top shell of the exemplary fluid line connector assembly. 
         FIG.  185    is a top plan view illustrating various details of a bottom shell of the exemplary fluid line connector assembly. 
         FIG.  186    is a partially exploded isometric view illustrating the exemplary fluid line connector assembly. 
         FIG.  187    is a bottom plan view illustrating the exemplary fluid line connector assembly. 
         FIG.  188    is a partially exploded isometric view illustrating the exemplary fluid line connector assembly. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Figures are not necessarily to scale, and some features may be exaggerated to show details of particular components or steps. 
     Referring now to the figures, and to  FIGS.  1 - 3    in particular, the preferred implementation, according to the present invention, of a hand-held beverage dispenser  10  is shown to generally comprise a handle body  11 , which, as will be better understood further herein, houses a novel piping system  22  (shown in detail in  FIGS.  7 - 62   ), and a post-mix type drink dispenser assembly  104 , which, as shown in the figures, is dependently coupled to the bottom  15  of the handle body  11  at a location adjacent the forward end  18  of the handle body  11 . As will be readily appreciated by those of ordinary skill in the relevant arts, the depicted hand-held beverage dispenser  10  is of the well-know class of dispensers often referred to as bar guns or soda guns. In any case, and like the dispensers of its class, the hand-held beverage dispenser  10  of the present invention is intended for use in dispensing—on demand—a variety of post-mix beverages. 
     As is well-known to those of ordinary skill in the art, such post-mix beverages are prepared as they are dispensed by mixing together a beverage product, such as, for example, a syrup or other concentrate, and a diluent, such as, for example, plain water or carbonated water. Although, and as will be described in greater detail further herein, at least some preferred implementations of the present invention contemplate the provision of a universal handle body  11  and piping system  22  suitable for use with any of a wide range of implementations for the post-mix type drink dispenser assembly  104 , details of an exemplary post-mix type drink dispenser assembly, which operates in a manner consistent with the present invention for the provision of post-mix beverages, are shown and described in U.S. patent application Ser. No. 16/394,889 filed Apr. 25, 2019 for METHODS AND APPARATUS FOR POST-MIX DRINK DISPENSING, which, by this reference, is incorporated herein as though now set forth in its entirety. Regardless of the technical details involved in mixing post-mix beverages, however, it should be noted that while each of the various utilized diluents is typically appropriate for use with a great variety of beverage products, any one beverage product will generally only be compatible with a particular diluent. 
     In a leap forward for the relevant arts, the novel piping system  22  of the present invention provides various flow paths through the hand-held beverage dispenser  10  between a plurality of fluid inlets  23  to the piping system  22  and a plurality of fluid outlets  36  (shown, for example, in  FIG.  7   ) from the piping system  22 , wherein at least some of the flow paths are selectively established. In particular, as will be better understood in the details set forth further herein, the novel piping system  22  of the present invention is adapted to enable, for each of a plurality of provided beverage products, end-user selection of any one of a plurality of provided diluents, whereafter the selected diluent is dispensed concurrently with the beverage product for which the selection has been made. 
     As shown in the figures, the plurality of fluid inlets  23  is provided at the rear end  20  of the handle body  11 , and, for the depicted exemplary implementation, includes a first diluent inlet  24  and a second diluent inlet  25 , although, it is noted, the teachings of the present invention may be relied upon, within the ordinary skill in the relevant arts, to expand the number of diluent inlets to three or more. Furthermore, some aspects of the present invention apply to beverage systems utilizing only one diluent. In any case, the plurality of fluid inlets  23  also includes a plurality of beverage product inlets  26   a - 26   h , there being provided one beverage product inlet  26   a - 26   h  for each of the number of beverage products for which an implementation of the hand-held beverage dispenser  10  is capable of dispensing on demand. As will be appreciated by those of ordinary skill in the art, in light of this exemplary description, the implemented number of beverage product inlets may vary widely with such considerations as requirements of the intended commercial market, desired limits on the size or shape of the hand-held beverage dispenser  10 , manufacturing cost, and the like. 
     At this juncture it is noted that the rear end  20  of the exemplary handle body  11  is, for clarity, depicted sans aesthetic covering, and, for generality, depicted without any particular interface to an external flow control and manifold system. As is well known in the relevant arts, dispensers of the class to which the hand-held beverage dispenser  10  of the present invention belongs generally operate to dispense a mixture of a desired beverage product and its corresponding appropriate diluent in a single-button, ON-OFF type operation, and therefore generally do not include features for pressure regulation and the like. As a result and as also well known in the relevant arts, such dispensers are supplied with fluids through any of many readily commercially available flow control and manifold assemblies. These assemblies serve to supply fluids at appropriately regulated pressures, and are typically connected to a hand-held beverage dispenser through a multiplicity of individual fluid lines. 
     The individual fluid lines from a flow control and manifold assembly are typically collected within an elongate sheath tube, which, along with the fluid lines, terminates at a connector sized, shaped and otherwise adapted to provide a fluid-tight interface between each fluid line and each fluid inlet of the hand-held beverage dispenser, in this case the fluid inlets  23  disposed at the rear end  20  of the handle body  11  of the hand-held beverage dispenser  10 . As will be appreciated by those of ordinary skill in the art, the fluid inlets  23  are readily provided with any additional connector hardware as may be required to connect to the fluid lines from the flow control and manifold system. Additionally, however, it is also noted that the flow control and manifold systems provide a capability for changing, on an ad hoc basis, the particular beverage product associated with a particular fluid line, and hence supplied to the respective beverage product inlet  26   a - 26   h . Although such changes may be carried out without affecting operation through any other fluid line of the dispenser, any particular change is subject to the ability of the newly supplied beverage product to be mixed with an appropriate diluent. 
     As will be described in greater detail further herein and shown, for example, in  FIG.  7   , the previously mentioned plurality of fluid outlets  36  is provided at the bottom  15 , and adjacent the forward end  18 , of the handle body  11 , where the outlets  36  are placed and arranged to conduct dispensed fluids to the post-mix type drink dispenser assembly  104 . For the depicted exemplary implementation, the fluid outlets  36  include a single, common diluents outlet  37 , and a plurality of beverage product outlets  38   a - 38   h , there being provided one beverage product outlet  38   a - 38   h  for, and corresponding to, each one of the provided beverage product inlets  26   a - 26   h.    
     As will be described in detail further herein, the hand-held beverage dispenser  10  of the present invention is adapted to dispense a beverage fluid, as supplied under suitable pressure from a flow control and manifold assembly and through one of the beverage product inlets  26   a - 26   h , from a corresponding one of the beverage product outlets  38   a - 38   h , and into the post-mix type drink dispenser assembly  104 . Additionally, the hand-held beverage dispenser  10  of the present invention is adapted to concurrently dispense either the first diluent, as supplied under suitable pressure from the flow control and manifold assembly, or other source, and through the first diluent inlet  24 , or, in the alternative, the second diluent, as supplied under suitable pressure from the flow control and manifold assembly, or other source, and through the second diluent inlet  25 , from the single, common diluent outlet  37 , and into the post-mix type drink dispenser assembly  104  where the end-user selected first or second diluent is mixed with the simultaneously dispensed beverage product. Although, as shown in  FIG.  7   , the exemplary implementation of the present invention comprises a single, common diluent outlet  37 , a plurality of separate diluent outlets (for example, one for each diluent) may also be implemented within the scope of the present invention. 
     Because, as will be discussed in detail with reference to  FIGS.  7 - 63   , the provision of either the first or second diluent is end-user selectable on a per beverage product inlet  26   a - 26   h  basis (equivalently described as on a per beverage product outlet  38   a - 38   h  basis), the correct diluent may readily be dispensed for any beverage product flowing through any beverage product inlet  26   a - 26   h  (beverage product outlet  38   a - 38   h ). What is more, and in an important advance over the prior art, end-user selection of the first or second diluent is accomplished without disassembly of the hand-held beverage dispenser  10 , depressurization of any flow path through the hand-held beverage dispenser  10  or its fluids-supplying flow control and manifold assembly, or any other disruption of the operation of the hand-held beverage dispenser  10 . 
     Finally, the general operation of the hand-held beverage dispenser  10  of the present invention substantially adheres to the simple operation familiar to countless service industry employees worldwide. As shown in the figures, a set of flow controls  14   a - 14   h  is provided at the top  12  of the handle body  11  of the hand-held beverage dispenser  10 , a single flow control  14   a - 14   h  being for and corresponding to beverage product introduced through one each of the provided beverage product inlet  26   a - 26   h  for dispensing from the also corresponding beverage product outlet  38   a - 38   h . As will be better understood further herein, however, the most preferred implementation of the hand-held beverage dispenser  10  of the present invention additionally includes a pair of flow controls  14   i ,  14   j , each dedicated to dispensing a diluent only. What is more, in at least the most preferred implementation of the present invention, the provision of either the first or second diluent is also end-user selectable for each of flow controls  14   i - 14   j . In any case, simply depressing a flow control  14   a - 14   j  will cause flow of either a beverage product and its corresponding selected diluent, or a diluent alone. 
     To ensure ease of handling and comfortable use of the hand-held beverage dispenser  10 , the handle body  11  is most preferably ergonomically contoured about the sides  16  and bottom  15  to provide a secure, ambidextrous grip  17  for the end-user as the post-mix type drink dispenser assembly  104  is held steady over a beverage vessel while any of the flow controls  14   a - 14   j  is actuated (typically by thumb press). As particularly shown in  FIGS.  4 - 5   , and also typical of the class of dispensers to which the hand-held beverage dispenser  10  belongs, a nozzle housing  122  for the mixer  105  (described in greater detail further herein) of the implemented exemplary post-mix type drink dispenser assembly  104  is readily removable to facilitate periodic cleaning of the post-mix type drink dispenser assembly  104 . To this end, as shown in the figures, the upper portion  124  of the inner surface  123  of the nozzle housing  122  is provided with a plurality of locking tabs  125  operably adapted to engage mating nozzle housing locking members  112  provided about a portion of the mixer  105 . As shown in the figures, and as will be familiar to those of ordinary skill in the art as well as to service industry employees in general, the nozzle housing  122  locks in place with a partial twist about the mixer  105  in the clockwise direction, and is similarly released with a partial twist about the mixer  105  in the counterclockwise direction. 
     Although, as above noted, Applicant has taken effort to ensure that the preferred implementation of the hand-held beverage dispenser  10  of the present invention retains a familiar manner of operation, the preferred implementation exceeds the level of maintainability of prior art dispensers. For example, although prior art dispensers include such features as the above-described removable nozzle housing  122 , as shown in  FIGS.  4 - 5   , conventional dispensers of the relevant class implement limited, at best, features for maintainability of the remainder of the provided drink dispenser assembly, which in the typical prior art device is either unitary with the handle body or so highly integral therewith as to make removal or disassembly for maintenance impractical if not wholly impossible. To be sure, Applicant knows of no prior art implementation of a bar gun wherein the entire provided nozzle assembly is readily removable from the bar gun. As will be better understood further herein, provision is made in the most preferred implementation of the hand-held beverage dispenser  10  of the present invention for the simple removal from the handle body  11  of the entire post-mix type drink dispenser assembly  104 , whereafter the removed dispenser assembly  104  may be replaced or repaired. In addition to dramatically increasing the maintainability of the hand-held beverage dispenser  10  of the present invention, this aspect of the present invention also enables flexibility in the development of a commercial offering by allowing use of any number of differently designed dispenser assemblies with a single design of handle body and piping system. 
     As previously noted, the hand-held beverage dispenser  10  of the present invention includes a novel piping system  22 , which is housed within the previously described handle body  11 . Broadly described, the piping system  22  comprises a number of fluid conduits at various fluid inlets  23 , as shown in  FIG.  6   , or terminating at various fluid outlets  36 , as shown in  FIG.  7   . Additionally, however, the piping system  22  comprises a plurality of valve units  39   a - 39   j , each of which will be shown and described in greater detail further herein, interposed between the fluid conduits from the fluid inlets  23  and the fluid conduits to the fluid outlets  36 . In the exemplary implementation, each such valve unit  39   a - 39   j  is implemented about a corresponding valve body  40   a - 40   j , as shown in  FIGS.  7 - 8   , and, as will be better understood further herein, together implement the previously mentioned novel end-user selective establishment of various flow paths through the hand-held beverage dispenser  10  of the present invention. 
     Although other methods of manufacturing are possible in accordance with the teachings of the present invention, the complex structure of the most preferred implementation of the hand-held beverage dispenser  10  of the present invention is created using additive manufacturing. In particular, it is particularly advantageous to 3-D print the valve bodies  40   a - 40   j , and all of the fluid conduits of the piping system  22 , unitary with the all of the handle body  11  save base plate  92  (described further herein). Most preferably, these components are printed in stainless steel, which, as opposed to the utilization of many other possible materials of manufacture, such as, for example, plastics or resins, eliminates many concerns regarding the use of a potentially hazardous material. Additionally, the use of stainless steel facilitates routine cleaning, and also results in a durable product notwithstanding the challenging environment in which the hand-held beverage dispenser  10  will be used. 
     Regardless of the selected material of construction, however, and as particularly shown in  FIGS.  6 - 8   , the most preferred method for additively manufacturing the housing body  11  and unitary internal structures thereof includes the provision of an internal mesh, or lattice, structure  21 . As shown in the figures, the implemented internal mesh  21  suspends and fixes the valve bodies  40   a - 40   j  and fluid conduits in place substantially within the extents of the handle body  11 . Implementation of the internal mesh  21  not only saves material cost, but also lessons the overall weight of the hand-held beverage dispenser  10 , thereby increasing end-user satisfaction with the hand-held beverage dispenser  10 . 
     As will be better understood further herein, operation and/or maintenance of the hand-held beverage dispenser  10  of the present invention involves at least some limited access from without the handle body  11  to the various valve bodies  40   a - 40   j  housed within the handle body  11 . To this end, as particularly shown in  FIG.  6   , a plurality of valve stem holes  13  is provided through the top  12  of the handle body  11 , to enable end-user interaction, through the previously discussed flow controls  14   a - 14   j , with the piping system  22 , as is necessary in the ordinary operation of the hand-held beverage dispenser  10 . Similarly and as particularly shown in  FIG.  7   , and best understood with reference to  FIG.  3   , the base plate  92 , which substantially forms the bottom  15  of the handle body  11 , is selectively removable from the handle body  11 , as may be necessary in the maintenance or deep cleaning of hand-held beverage dispenser  10 , and which facilitates assembly of the valve units  39   a - 39   j , which will be described in greater detail further herein. 
     To doubly ensure clarity in the discussions to follow, it is at this juncture noted that in the exemplary implementation of the hand-held beverage dispenser  10  of the present invention, as now described, beverage product inlet  26   a  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   a , and valve body  40   a  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   a ; beverage product inlet  26   b  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   b , and valve body  40   b  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   b ; beverage product inlet  26   c  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   c , and valve body  40   c  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   c ; beverage product inlet  26   d  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   d , and valve body  40   d  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   d ; beverage product inlet  26   e  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   e , and valve body  40   e  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   e ; beverage product inlet  26   f  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   f , and valve body  40   f  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   f ; beverage product inlet  26   g  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   g , and valve body  40   g  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   g ; and beverage product inlet  26   h  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  40   h , and valve body  40   h  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  38   h . Additionally, the first diluent inlet  24  is in fluid communication with each of the valve bodies  40   a - 40   j  through a corresponding shared fluid conduit, and the second diluent inlet  25  is in fluid communication with each of the valve bodies  40   a - 40   j  through a separate corresponding shared fluid conduit. Finally, each of the valve bodies  40   a - 40   j  is in fluid communication through yet a further fluid conduit with the single, common diluents outlet  37 . 
     Referring now to  FIGS.  9 - 15   , various details of the fluid conduits between the valve bodies  40   a - 40   j  and the various fluid inlets  23  and fluid outlets  36  are shown and described. In particular,  FIGS.  9 - 15    detail the structural arrangement implementing the fluid conduits between beverage product inlets  26   a - 26   h  and valve bodies  40   a - 40   h , and between valve bodies  40   a - 40   h  and beverage product outlets  38   a - 38   h . In order to clearly depict these aspects of the present invention, however, the piping system  22  is, for clarity, depicted in these figures in partially cutaway views, each of which “cuts away” or otherwise omits the outer extents of the handle body  11  as well as the interconnecting mesh  21 . That said, it is noted that the view of  FIG.  9    generally corresponds to the view of  FIG.  6   ; the view of  FIG.  10    generally corresponds to the view of  FIG.  7   ; and the view of  FIG.  15    generally corresponds to the view of  8 . Additionally, it is noted that  FIGS.  9 - 15   , like  FIGS.  6 - 8   , each depict the piping system  22  of the exemplary preferred implementation with fully depopulated valve bodies  40   a - 40   j —that is, omitting the full detail of the valve units  39   a - 39   j , which additional details will be fully shown and described further herein. 
     As shown in the combined  FIGS.  9 - 15   , an individual beverage product supply conduit  31   a - 31   h  is provided between each beverage product inlet  26   a - 26   h  and a corresponding one of the valve bodies  40   a - 40   h . Although other shapes or implementations are possible, each beverage product supply conduit  31   a - 31   h  of the exemplary preferred implementation comprises an elongate tubular member routed, within the confines of the extents of the handle body  11 , between one of the beverage product inlets  26   a - 26   h  and its corresponding one of the valve bodies  40   a - 40   h . In particular, beverage product supply conduit  31   a  is shown to provide fluid communication between beverage product inlet  26   a  and valve body  40   a ; beverage product supply conduit  31   b  is shown to provide fluid communication between beverage product inlet  26   b  and valve body  40   b ; beverage product supply conduit  31   c  is shown to provide fluid communication between beverage product inlet  26   c  and valve body  40   c ; beverage product supply conduit  31   d  is shown to provide fluid communication between beverage product inlet  26   d  and valve body  40   d ; beverage product supply conduit  31   e  is shown to provide fluid communication between beverage product inlet  26   e  and valve body  40   e ; beverage product supply conduit  31   f  is shown to provide fluid communication between beverage product inlet  26   f  and valve body  40   f ; beverage product supply conduit  31   g  is shown to provide fluid communication between beverage product inlet  26   g  and valve body  40   g ; and beverage product supply conduit  31   h  is shown to provide fluid communication between beverage product inlet  26   h  and valve body  40   h.    
     As shown in the figures, each beverage product supply conduit  31   a - 31   h  may interface with its respective valve body  40   a - 40   h  at any radial position about the respective valve body  40   a - 40   h , the circumferential placement being largely a matter of accommodating each conduit within the very limited available space. On the other hand, however, and as will be better understood further herein, it should at this point be noted that for the exemplary implementation of the present invention as now shown and described each beverage product supply conduit  31   a - 31   h  interfaces with its respective valve body  40   a - 40   h  at substantially the same vertical position from one valve body  40   a - 40   h  to another. To this end, as most clearly depicted in  FIGS.  11 ,  12  and  15   , the beverage product supply conduits  31   a - 31   h  are shown to terminate at a uniform vertical location in the upper midsection of the valve bodies  40   a - 40   h.    
     As also shown in the combined  FIGS.  9 - 15   , an individual beverage product dispensing conduit  35   a - 35   h  is provided between each valve body  40   a - 40   h  and a corresponding one of the beverage product outlets  38   a - 38   h . Although other shapes or implementations are possible, each beverage product dispensing conduit  35   a - 35   h  of the exemplary preferred implementation comprises an elongate tubular member routed, within the confines of the extents of the handle body  11 , between one of the valve bodies  40   a - 40   h  and its corresponding one of the beverage product outlets  38   a - 38   h . In particular, beverage product dispensing conduit  35   a  is shown to provide fluid communication between valve body  40   a  and beverage product outlet  38   a ; beverage product dispensing conduit  35   b  is shown to provide fluid communication between valve body  40   b  and beverage product outlet  38   b ; beverage product dispensing conduit  35   c  is shown to provide fluid communication between valve body  40   c  and beverage product outlet  38   c ; beverage product dispensing conduit  35   d  is shown to provide fluid communication between valve body  40   d  and beverage product outlet  38   d ; beverage product dispensing conduit  35   e  is shown to provide fluid communication between valve body  40   e  and beverage product outlet  38   e ; beverage product dispensing conduit  35   f  is shown to provide fluid communication between valve body  40   f  and beverage product outlet  38   f ; beverage product dispensing conduit  35   g  is shown to provide fluid communication between valve body  40   g  and beverage product outlet  38   g ; and beverage product dispensing conduit  35   h  is shown to provide fluid communication between valve body  40   h  and beverage product outlet  38   h.    
     As shown in the figures, each beverage product dispensing conduit  35   a - 35   h —like the beverage product supply conduits  31   a - 31   h —may interface with its respective valve body  40   a - 40   h  at any radial position about the respective valve body  40   a - 40   h , the circumferential placement being largely a matter of accommodating each conduit within the very limited available space. On the other hand, however, and as will be better understood further herein, it should at this point be noted that for the exemplary implementation of the present invention as now shown and described each beverage product dispensing conduit  35   a - 35   h —like each beverage product supply conduit  31   a - 31   h —interfaces with its respective valve body  40   a - 40   h  at substantially the same vertical position from one valve body  40   a - 40   h  to another. The vertical position for the beverage product dispensing conduits  35   a - 35   h , however, is vertically separated from the previously discussed vertical position for the beverage product supply conduits  31   a - 31   h . To this end, as most clearly depicted in  FIGS.  11 ,  12  and  15   , the beverage product dispensing conduits  35   a - 35   h  are shown to originate at a uniform vertical location adjacent the upper end of valve bodies  40   a - 40   h , which, as is shown in the figures, is a location vertically separate from the location at which the beverage product supply conduits  31   a - 31   h  terminate. 
     As previously noted, the first diluent inlet  24  and the second diluent inlet  25  are each in fluid communication with each of the valve bodies  40   a - 40   j  through a respective shared fluid conduit. As particularly shown in  FIG.  16   , a first diluent inlet manifold  126  includes a common trunk  127  in fluid communication with first diluent inlet  24 , and a second diluent inlet manifold  28  includes a common trunk  29  in fluid communication with second diluent inlet  25 . As shown in  FIG.  17   , a plurality of valve supply branches  27   a - 27   j  is formed, or otherwise provided, in fluid communication with, and feed a first diluent from, common trunk  127 , and a plurality of valve supply branches  30   a - 30   j  is formed, or otherwise provided, in fluid communication with, and feed a second diluent from, common trunk  29 . As will be better understood further herein, there is provided one valve supply branch  27   a - 27   j  and one valve supply branch  30   a - 30   j  for each implemented valve unit  39   a - 39   j . Although other shapes or implementations are possible, the first common trunk  127  and its corresponding valve supply branches  27   a - 27   j  of the exemplary preferred implementation of the first diluent inlet manifold  126  comprise an arrangement of generally elongate tubular members routed, within the handle body  11 , between the first diluent inlet  24  and the valve bodies  40   a - 40   j , as variously shown in combined  FIGS.  9 - 15 ,  17  and  19 - 23   . Likewise, and as also variously shown in combined  FIGS.  9 - 15 ,  17  and  19 - 23   , the second common trunk  29  and its corresponding valve supply branches  30   a - 30   j  of the exemplary preferred implementation of the second diluent inlet manifold  28  comprise an arrangement of generally elongate tubular members routed, within the handle body  11 , between the second diluent inlet  25  and the valve bodies  40   a - 40   j.    
     As shown in  FIGS.  17 - 21   , valve supply branch  27   a  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   a , about which is implemented valve unit  39   a , while valve supply branch  30   a  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   a . Valve supply branch  27   b  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   b , about which is implemented valve unit  39   b , while valve supply branch  30   b  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   b . Valve supply branch  27   c  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   c , about which is implemented valve unit  39   c , while valve supply branch  30   c  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   c . Valve supply branch  27   d  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   d , about which is implemented valve unit  39   d , while valve supply branch  30   d  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   d . Valve supply branch  27   e  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   e , about which is implemented valve unit  39   e , while valve supply branch  30   e  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   e . Valve supply branch  27   f  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   f , about which is implemented valve unit  39   f , while valve supply branch  30   f  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   f . Valve supply branch  27   g  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   g , about which is implemented valve unit  39   g , while valve supply branch  30   g  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   g . Valve supply branch  27   h  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   h , about which is implemented valve unit  39   h , while valve supply branch  30   h  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   h . Valve supply branch  27   i  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   i , about which is implemented valve unit  39   i , while valve supply branch  30   i  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   i . Valve supply branch  27   j  provides, for a first diluent introduced to common trunk  127  through first diluent inlet  24 , fluid communication between common trunk  127  and valve body  40   j , about which is implemented valve unit  39   j , while valve supply branch  30   j  provides, for a second diluent introduced to common trunk  29  through second diluent inlet  25 , fluid communication between common trunk  29  and valve body  40   j.    
     As shown in the figures, and as will be better understood further herein, it should at this point be noted that, for the exemplary implementation of the present invention as now shown and described, each valve supply branch  27   a - 27   j  from the common trunk  127  of the first diluent inlet manifold  126 , and each valve supply branch  30   a - 30   j  from the common trunk  29  of the second diluent inlet manifold  28 , like the beverage product supply conduits  31   a - 31   h , interface with its respective valve body  40   a - 40   j  at substantially the same vertical position from one valve body  40   a - 40   j  to another. Contrary to the case of the beverage product supply conduits  31   a - 31   h , however, the radial position about a valve body  40   a - 40   j  at which each corresponding valve supply branch  27   a - 27   j  interfaces with the respective valve body  40   a - 40   j  are, for the exemplary implementation of the present invention as now shown and described, at an angular separation from the radial position about the valve body  40   a - 40   j  at which each corresponding valve supply branch  30   a - 30   j  interfaces that is substantially the same from one valve body  40   a - 40   j  to another. To this end, as most clearly depicted in  FIG.  15   , each valve supply branch  27   a - 27   j  and each valve supply branch  30   a - 30   j  is shown to terminate at a uniform vertical location in the lower section of the valve bodies  40   a - 40   j . Likewise and as most clearly depicted in  FIG.  17   , the angular separation between the radial position at which each valve supply branch  27   a - 27   j  and the radial position at which the corresponding valve supply branch  30   a - 30   j  interface with a valve body  40   a - 40   j  is shown to be uniform from one valve body  40   a - 40   j  to another, although in at least some other implementations such uniformity need not exist. 
     As also previously noted, each valve body  40   a - 40   j  is in fluid communication with the common diluents outlet  37  through a shared fluid conduit. As particularly shown in  FIG.  16   , a common diluents outlet manifold  32  includes a common trunk  33  in fluid communication with the single, common diluents outlet  37 . As shown in  FIGS.  22 - 23   , a plurality of valve dispense branches  34   a - 34   j  is formed, or otherwise provided, in fluid communication with, and feed diluent to, common trunk  33 . As will be better understood further herein, there is provided one valve dispense branch  34   a - 34   j  for each implemented valve unit  39   a - 39   j . Although other shapes or implementations are possible, the common trunk  33  and its corresponding valve dispense branches  34   a - 34   j  of the exemplary preferred implementation of the common diluents outlet manifold  32  comprise an arrangement of generally elongate tubular members routed, within the handle body  11 , between the valve bodies  40   a - 40   j  and the common diluents outlet  37 , as variously shown in combined  FIGS.  10 - 12 ,  14 - 15  and  22 - 23   . 
     As shown in combined  FIGS.  18 A- 18 D and  22 - 23   , valve dispense branch  34   a  provides, for a diluent released by valve unit  39   a , fluid communication between valve body  40   a , about which is implemented valve unit  39   a , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   a  to the single, common diluents outlet  37 . Valve dispense branch  34   b  provides, for a diluent released by valve unit  39   b , fluid communication between valve body  40   b , about which is implemented valve unit  39   b , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   b  to the single, common diluents outlet  37 . Valve dispense branch  34   c  provides, for a diluent released by valve unit  39   c , fluid communication between valve body  40   c , about which is implemented valve unit  39   c , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   c  to the single, common diluents outlet  37 . Valve dispense branch  34   d  provides, for a diluent released by valve unit  39   d , fluid communication between valve body  40   d , about which is implemented valve unit  39   d , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   d  to the single, common diluents outlet  37 . Valve dispense branch  34   e  provides, for a diluent released by valve unit  39   e , fluid communication between valve body  40   e , about which is implemented valve unit  39   e , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   e  to the single, common diluents outlet  37 . Valve dispense branch  34   f  provides, for a diluent released by valve unit  39   f , fluid communication between valve body  40   f , about which is implemented valve unit  39   f , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   f  to the single, common diluents outlet  37 . Valve dispense branch  34   g  provides, for a diluent released by valve unit  39   g , fluid communication between valve body  40   g , about which is implemented valve unit  39   g , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   g  to the single, common diluents outlet  37 . Valve dispense branch  34   h  provides, for a diluent released by valve unit  39   h , fluid communication between valve body  40   h , about which is implemented valve unit  39   h , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   h  to the single, common diluents outlet  37 . Valve dispense branch  34   i  provides, for a diluent released by valve unit  39   i , fluid communication between valve body  40   i , about which is implemented valve unit  39   i , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   i  to the single, common diluents outlet  37 . Valve dispense branch  34   j  provides, for a diluent released by valve unit  39   j , fluid communication between valve body  40   j , about which is implemented valve unit  39   j , and common trunk  33 , which in turn provides fluid communication of the diluent released from valve unit  39   j  to the single, common diluents outlet  37 . 
     As shown in the figures, each valve dispense branch  34   a - 34   j  to the common trunk  33  of the diluents outlet manifold  32 — like the beverage product supply conduits  31   a - 31   h  and the beverage product dispensing conduit  35   a - 35   h —may interface with its respective valve body  40   a - 40   j  at any radial position about the respective valve body  40   a - 40   j , the circumferential placement being largely a matter of accommodating each conduit within the very limited available space. On the other hand, however, and as will be better understood further herein, it should at this point be noted that each valve dispense branch  34   a - 34   j —like the beverage product supply conduits  31   a - 31   h , the beverage product dispensing conduits  35   a - 35   h , and each valve supply branch  27   a - 27   j  and  30   a - 30   j —interfaces with its respective valve body  40   a - 40   j  at substantially the same vertical position from one valve body  40   a - 40   j  to another. The vertical position for the valve dispense branches  34   a - 34   j , however, is vertically separated from the previously discussed vertical position for the valve supply branches  27   a - 27   j  and  30   a - 30   j . To this end, as most clearly depicted in  FIG.  15   , the valve dispense branches  34   a - 34   j  are shown to originate at a uniform vertical location in the lower midsection of the valve bodies  40   a - 40   j , which, as is shown in the figures, is a location vertically separate from the location at which the valve supply branches  27   a - 27   j  and  30   a - 30   j  terminate. 
     As previously noted, the novel piping system  22  of the present invention enables an end-user to selectively establish various flow paths through the hand-held beverage dispenser  10  in order to select, on a beverage product-by-beverage product basis, one of a plurality of available diluents for dispensing from the hand-held beverage dispenser  10  with the beverage product. In particular, as will be better understood further herein, each provided valve unit  39   a - 39   j  inventively implements two distinct valves about a single valve body  40   a - 40   j , whereby the novel arrangement of the present invention is capable of realizing a flow control valve  54   a - 54   j  and a diluent selection valve  82   a - 82   j  for at least each beverage product to be dispensed by the hand-held beverage dispenser  10 , all of which is implemented substantially within the extents of the handle body  11  of the hand-held beverage dispenser  10 . For clarity, the term “substantially within the extents,” as used herein with reference to any handle body  11 ,  151  of the present inventions, whether in describing or claiming any aspect of the present inventions, shall be taken to mean that any feature so described or claimed is, in general, within the outer extents of the handle body, which includes any portion of the feature that also forms any aspect of the outer extents of the handle body. The term expressly excludes any aspect of the feature that protrudes into the beyond the normal grip of the handle body or interferes with control of the hand-held beverage dispenser  10 ,  150 , but includes aspects that extend as necessary to form or interface with a control, or to form or interface with and inlet or outlet to or from the handle body, or is otherwise contained within a cover or the like as would be attached in use to the handle body. At this juncture it is also noted that when referring to various valves, whether in describing or claiming any of the present invention, the term “functionally independent” shall mean that each one of a plurality of valves may be actuated, operated or otherwise used in its normal function without regard to the state of any other such valve, and that actuation, operation or other use of any such valve shall not cause any change in state of any other such valve. Likewise, when referring to various valves, whether in describing or claiming any of the present invention, the term “distinct” shall mean that each one of a plurality of valves performs mutually exclusive function functions, e.g. a first valve turning a flow on or off and a second valve selecting a single source from many when neither valve is provided with the capability to perform the function of the other. 
     In any case, in use of the present invention, as will be better understood further herein, the previously described fluid inlets  23  are conventionally placed in fluid communication with outlets from a flow control and manifold assembly or any other like source of at least one beverage product and a plurality of diluents, and the previously described fluid outlets  36  are placed in fluid communication with any suitable post-mix type drink dispenser assembly, as well known in the relevant arts. Additionally, as will be better understood further herein, the end-user will, for at least each of the provided beverage products, utilize a corresponding one of the inventively implemented diluent selection valves  82   a - 82   j  to select one of the plurality of diluents for dispensing with the corresponding beverage product. 
     Referring now then to  FIGS.  1 - 3 ,  16  and  18 A- 18 D , and with the foregoing discussions of the flow paths through the piping system  22  of the exemplary implementation in mind, it is to be understood that with the hand-held beverage dispenser  10  deployed for operation as described, the end-user will depress, or otherwise operate, one of the flow controls  14   a - 14   j  to actuate the corresponding flow control valve  54   a - 54   j , and dispense a desired beverage product with its selected diluent, or, as will be better understood further herein, a diluent alone. In particular, when an end-user operates flow control  14   a  to actuate flow control valve  54   a , beverage product admitted to the hand-held beverage dispenser  10  through beverage product inlet  26   a  flows through beverage product supply conduit  31   a , and is allowed by the “ON” flow control valve  54   a  to pass through valve unit  39   a  into beverage product dispensing conduit  35   a , whereafter the beverage product flows from beverage product outlet  38   a  into the provided post-mix type drink dispenser assembly  104 . Simultaneously, the “ON” flow control valve  54   a  allows passage of the end-user selected diluent through the valve unit  39   a . In particular, and depending on the end-user selected position of diluent selection valve  82   a  for the depicted exemplary embodiment, either the first diluent, as admitted through the first diluent inlet  24 , will flow through the common trunk  127  and valve supply branch  27   a  of the first diluent inlet manifold  126  and pass through the diluent selection valve  82   a , or the second diluent, as admitted through the second diluent inlet  25 , will flow through the common trunk  29  and valve supply branch  30   a  of the second diluent inlet manifold  28  and pass through the diluent selection valve  82   a . In any case, the selected first or second diluent will be passed from the “ON” flow control valve  54   a , through the valve dispense branch  34   a  and common trunk  33  of the common diluents outlet manifold  32 , whereafter the selected diluent flows from the single, common diluents outlet  37  into the provided post-mix type drink dispenser assembly  104  to mix, as is otherwise conventional, with the simultaneously dispensed beverage product. 
     As shown in the figures, the foregoing manner of operation is identical for each additionally implemented beverage product inlet  26   b - 26   h . When an end-user operates flow control  14   b - 14   h  to actuate corresponding flow control valve  54   b - 54   h , beverage product admitted to the hand-held beverage dispenser  10  through corresponding beverage product inlet  26   b - 26   h  flows through corresponding beverage product supply conduit  31   b - 31   h , and is allowed by the corresponding “ON” flow control valve  54   b - 54   h  to pass through corresponding valve unit  39   b - 39   h  into corresponding beverage product dispensing conduit  35   b - 35   h , whereafter the beverage product flows from corresponding beverage product outlet  38   b - 38   h  into the provided post-mix type drink dispenser assembly  104 . Simultaneously, the corresponding “ON” flow control valve  54   b - 54   h  allows passage of the end-user selected diluent through the corresponding valve unit  39   b - 39   h . In particular, and depending on the end-user selected position of corresponding diluent selection valve  82   b - 82   h  for the depicted exemplary embodiment, either the first diluent, as admitted through the first diluent inlet  24 , will flow through the common trunk  127  and corresponding valve supply branch  27   b - 27   h  of the first diluent inlet manifold  126  and pass through the corresponding diluent selection valve  82   b - 82   h , or the second diluent, as admitted through the second diluent inlet  25 , will flow through the common trunk  29  and corresponding valve supply branch  30   b - 30   h  of the second diluent inlet manifold  28  and pass through the corresponding diluent selection valve  82   b - 82   h . In any case, the selected first or second diluent will be passed from the corresponding “ON” flow control valve  54   b - 54   h , through the corresponding valve dispense branch  34   b - 34   h  and common trunk  33  of the common diluents outlet manifold  32 , whereafter the selected diluent flows from the single, common diluents outlet  37  into the provided post-mix type drink dispenser assembly  104  to mix, as is otherwise conventional, with the simultaneously dispense beverage product. 
     As particularly shown in  FIG.  18 D , with reference to  FIG.  16   , the present invention also contemplates, and provides for, the selective dispensing from the hand-held beverage dispenser  10  of a diluent alone. As shown in the figure, adjunct valve units  39   i  and  39   j  are provided without corresponding beverage product supply conduits and beverage product dispensing conduits. As will be better understood further herein, no other change is necessary to implement this feature, and, as a result, no additional or different valve components are required. As will be appreciated by those of ordinary skill in the art, this not only greatly simplifies implementation of the present inventions, but saves manufacturing and maintenance costs as well as enhances usability. In any case, for each of valve units  39   i - 39   j , as shown in the exemplary implementation, the end-user will utilize the corresponding diluent selection valves  82   i - 82   j  to select one of the plurality of diluents for dispensing with flow control  14   i - 14   j , respectively. 
     When an end-user operates one of flow controls  14   i - 14   j  to actuate either flow control valve  54   i  or flow control valve  54   j , respectively, the “ON” flow control valve  54   i  or flow control valve  54   j  allows passage of the end-user selected diluent through the corresponding valve unit  39   i - 39   j . In particular, and depending on the end-user selected position of corresponding diluent selection valve  82   i - 82   j , either the first diluent, as admitted through the first diluent inlet  24 , will flow through the common trunk  127  and corresponding valve supply branch  27   i - 27   j  of the first diluent inlet manifold  126  and pass through the corresponding diluent selection valve  82   i - 82   j , or the second diluent, as admitted through the second diluent inlet  25 , will flow through the common trunk  29  and corresponding valve supply branch  30   i - 30   j  of the second diluent inlet manifold  28  and pass through the diluent selection valve  82   i - 82   j . In any case, the selected first or second diluent will be passed from the corresponding “ON” flow control valve  54   i - 54   j , through the corresponding valve dispense branch  34   i - 34   j  and common trunk  33  of the common diluents outlet manifold  32 , whereafter the selected diluent flows from the single, common diluents outlet  37  into the provided post-mix type drink dispenser assembly  104  to be dispensed. 
     As previously noted, each provided valve unit  39   a - 39   j  inventively implements two distinct valves about a single valve body  40   a - 40   j , such that a flow control valve  54   a - 54   j  and a diluent selection valve  82   a - 82   j  may be provided substantially within the handle body  11  of the hand-held beverage dispenser  10  for each beverage product to be dispensed. Referring then to  FIGS.  24 - 32   , the novel valve bodies  40   a - 40   j —about which the inventive valve units  39   a - 39   j  of the exemplary preferred embodiment of the present invention are implemented—are described in detail with reference to a depicted representative valve body  40   d . In an important aspect of the present invention, it is noted that at least the internal shapes and structures of each valve body  40   a - 40   j , as well as any implemented ports or other openings in to or out of the interior spaces of the valve bodies  40   a - 40   j , are preferably substantially identical from one valve body to another. The exterior shapes and other details, on the other hand, may vary widely within the scope of the present invention. That said, and as particularly shown in  FIGS.  24 - 25   , the representative valve body  40   d , which, as will be better understood further herein, is generally tubular, is shown to comprise a cylindrical flow control valve stem orifice  42  at the top  41  of the valve body  40   d  and a larger circular open end  53  at the bottom  52  of the valve body  40   d , each of which will be better understood further herein. As previously described, a number of tubular conduits generally provide fluid communication in to and out of each valve body  40   a - 40   j . As shown in the figures, a beverage product supply conduit  31   d , a beverage product dispensing conduit  35   d , a valve supply branch  27   d  from the common trunk  127  of the first diluent inlet manifold  126 , a valve supply branch  30   d  from the common trunk  29  of the second diluent inlet manifold  28 , and a valve dispense branch  34   d  to the common trunk  33  of the common diluents outlet manifold  32  all interface with the valve body  40   d.    
     In the exemplary implementation of the present invention, each tubular conduit of a common type most preferably interfaces with its respective valve body  40   a - 40   j  at a vertical position that, for such type, is consistent from one valve body to another. To this end, and as particularly shown in  FIGS.  26 - 29   , the beverage product supply conduit  31   d  interfaces with the valve body  40   d  in horizontal plane P 1  therethrough, the beverage product dispensing conduit  35   d  interfaces with the valve body  40   d  in horizontal plane P 2  therethrough, the valve supply branch  27   d  from the common trunk  127  of the first diluent inlet manifold  126  and the valve supply branch  30   d  from the common trunk  29  of the second diluent inlet manifold  28  each interfaces with the valve body  40   d  in horizontal plane P 3  therethrough, and the valve dispense branch  34   d  to the common trunk  33  of the common diluents outlet manifold  32  interfaces with the valve body  40   d  in horizontal plane P 4  therethrough. 
     As particularly shown in  FIGS.  30 - 32  and  34   , the interior space of the valve body  40   d  generally forms an upper cylindrical chamber  43  and a lower cylindrical chamber  48 , wherein the diameter of the lower cylindrical chamber  48  is greater than the diameter of the upper cylindrical chamber  43  by a distance approximately twice the thickness of the cylindrical side wall  84  of an open topped cup  83  forming an integral part of the valves  54   d  and  82   d  of the valve unit  39   d , as will be better understood further herein. As also shown in the figures, an upper groove  47  for receiving a flow control valve seal  75 , as will be better understood further herein, is formed in the top  41  of the valve body  40   d  about the cylindrical flow control valve stem orifice  42 . Likewise, a lower groove  51  for receiving a diluent selector valve seal  77 , as will be better understood further herein, is formed in the bottom  52  of the valve body  40   d  about the circular open end  53  formed therein. Finally, a plurality of valve ports is formed through the side walls of the valve body  40   d  to provide selective fluid communication to or from within the valve body  40   d  from or to without the valve body  40   d . In particular, as shown in the figures, a beverage product inlet port  44  is formed at plane P 1  through the upper midsection of the side wall of the valve body  40   d  and in alignment with beverage product supply conduit  31   d . Likewise, a beverage product outlet port  45  is formed at plane P 2  through the side wall adjacent the upper end of the valve body  40   d  and in alignment with beverage product dispensing conduit  35   d . Additionally, a first diluent inlet port  49  is formed at plane P 3  through the lower section of the side wall of the valve body  40   d  and in alignment with valve supply branch  27   d , and a second diluent inlet port  50  is also formed at plane P 3 , but in alignment with valve supply branch  30   d . Still further, a diluent outlet port  46  is formed at plane P 4  through the lower midsection of the side wall of the valve body  40   d  and in alignment with the valve dispense branch  34   d . At this juncture, it should be well noted that, for any particular valve body, the first diluent inlet port  49  need not correspond exclusively to the first diluent inlet manifold  126  and, likewise, the second diluent inlet port  50  need not correspond exclusively to the second diluent inlet manifold  28 . To be sure, the assignment for any given diluent inlet port will depend largely on the ability to accommodate each valve supply branch within the very limited available space about the valve bodies  40   a - 40   j.    
     As shown in  FIGS.  33 - 34   , each valve body  40   a - 40   j , as provided within the handle-body  11  and supported along with the rest of the piping system  22  by the internal mesh  21 , or otherwise, is populated with various valve components in implementation of the previously described valve units  39   a - 39   j . In particular, a spool  55 , as shown in detail in  FIGS.  35 - 37   , is provided in implementation, as a spool valve, of each flow control valve  54   a - 54   j . Likewise, a specially formed open topped cup  83 , as shown in detail in  FIGS.  45 - 48   , is provided in implementation, as a novel cylindrically formed gate valve, of each diluent selection valve  82   a - 82   j . Additionally, however, it is noted that in the inventive implementation of the present invention, the interior face of the cylindrical side wall  84  of the each open topped cup  83  is cooperatively adapted with the lower cylindrical chamber  48  of each valve body  40   a - 40   j  to form a portion of the cylinder within which the spool  55  operates. In any case, these and other constituent components of the valve units  39   a - 39   j  are now described in detail in the following exemplary process for constructing the valve units  39   a - 39   j.    
     As shown in  FIGS.  35 - 37   , each valve spool  55  generally comprises a generally cylindrical spool core  56  having positioned thereon an upper land  70 , for controlling flow of beverage product, and a lower land  71 , for controlling flow an end-user selected diluent. The spool core  56  and lands  70 ,  71  are sized, shaped and otherwise adapted to operate within the valve cylinder formed by the cooperative arrangement between the upper cylindrical chamber  43  of the valve bodies  40   a - 40   j  and the cylindrical side wall  84  of the open topped cup  83 , as the cup  83  is operatively received in place within the lower cylindrical chamber  48  of the valve bodies  40   a - 40   j . For operation of the spool  55 , external threading  59  is formed about the top portion  57  of the spool core  56 . As will be better understood further herein, the top portion  57  of the spool core  56  functions as a valve stem  58 , and, as shown in  FIG.  33   , the external threading  59  is adapted to be received within a threaded hole  81  provided through each button cap  80 . Those of ordinary skill in the art will in light of this exemplary description recognize, however, that means other than the provision of threading may be used to attach the button caps  80  to their respective valve stem  58 . 
     In the depicted exemplary implementation, a first groove  61  is formed about the midsection  60  of the spool core  56  for dependently supporting the upper land  70 , and comprises an upper ridge  62  and a lower ridge  64  adapted to secure the land  70  in place. In assembly of the spool  55 , the upper land  70 , which may comprise a rubber or like material disk with a central orifice therethrough, slides downward over the spool core  56  from the top portion  57  of the spool core  56 , and over the upper ridge  62  into place within the first groove  61 . To facilitate placement without damage of the upper land  70 , a relief  63  is preferably formed about the top edge of the upper ridge  64 . Similarly, a second groove  66  is formed about the bottom portion  65  of the spool core  56  for dependently supporting the lower land  71 , and comprises an upper ridge  67  and a lower ridge  68  adapted to secure the land  71  in place. In assembly of the spool  55 , the lower land  71 , which like the upper land  70  may comprise a rubber or like material disk with a central orifice therethrough, slides upward over the spool core  56  from the bottom portion  65  of the spool core  56 , and over the lower ridge  68  into place within the second groove  66 . To facilitate placement without damage of the lower land  71 , a relief  69  is preferably formed about the bottom edge of the lower ridge  68 . Those of ordinary skill in the art will in light of this exemplary description recognize, however, that other manufacturing techniques, such as, for example, over-molding, may be utilized to implement the spool  55 . As shown in  FIGS.  38 - 39   , population of the valve units  39   a - 39   j  as implemented in the exemplary preferred embodiment begins with placement within the valve body  40   d  of an upper seal  75  and a lower seal  77 . The upper seal  75 , which may comprise a rubber or like material O-ring  76 , is pressed through the valve stem hole  13  corresponding to the valve body  40   d , and dependently received within the previously described upper groove  47  formed in the upper cylindrical chamber  43  of the valve body  40   d , where the upper seal  75  will serve to prevent fluid leaks during operation in use of the valve stem  58 . The lower seal  77 , which may comprise a rubber or like material O-ring  78 , is inserted through the cylindrical open end  53  of the valve body  40   d  and positioned in place within the previously described lower groove  51  formed in the lower cylindrical chamber  48  of the valve body  40   d , where the lower seal  77  will serve to prevent fluid leaks during operation of the implemented diluent selection valve  82   d , and will also serve to help hold in place the open topped cup  83  forming the diluent selection valve  82   d.    
     With the valve body  40   d  prepared as described, an assembled spool  55  is inserted through the cylindrical open end  53  of the valve body  40   d , as shown in  FIG.  40   , and a valve spring  79  is placed over the valve stem  58 , as shown in  FIG.  41   . A button  80 , having a threaded hole  81  therethrough, is then fixed to the external threading  59  provided at the top portion  57  of the spool  55 . The spring  79  and button  80  cooperate with the top surface  12  of the handle body  11  to secure the spool in place, as shown in  FIGS.  42 - 43   . The foregoing steps are then repeated for each remaining valve unit  40   a - 40   c  and  40   e - 40   f , as also shown in  FIGS.  42 - 43   . With each valve body  40   a - 40   j  partially populated with a secured in place spool  55 , as described, an open topped cup  83  is inserted through the circular open end  53  of each valve body  40   a - 40   j  to encompass the bottom portion  65 , including the lower land  71 , of the secured in place spool  55  as the cup  83  is fitted in place within the lower cylindrical chamber  48  of the valve body  40   a - 40   j.    
     As shown in  FIGS.  45 - 48   , an exemplary implementation of the open topped cup  83 , as suitable for forming the novel diluent selection valves  82   a - 82   j  according to the present invention, generally comprises a cylindrical side wall  84 , which acts as valve gate having a first flow aperture  85  and a second flow aperture  86  therethrough, and a closed bottom  89 . A stop tab  88  is formed at a lower exterior portion  87  of the cup  83 , and the bottom side  90  of the cup is provided with a blind slot  91  for engagement with a flat head screw driver or a like instrument. As will be better understood further herein, each cup  83  is partially rotatable as received within a valve body  40   a - 40   j , and rotation in one direction will position the implemented diluent selection valve  82   a - 82   j  to enable flow of the first diluent while blocking flow of the second diluent, and rotation in the opposite direction will position the implemented diluent selection valve  82   a - 82   j  to cause block of the first diluent while enabling flow of the second diluent. 
     With an open topped cup  83  fitted in place within the lower cylindrical chamber  48  of each valve body  40   a - 40   j  and temporarily held in place by the lower seal  77  provided within the valve body  40   a - 40   j , as shown in  FIG.  49   , a base plate  92  is secured about the cups  83  and bottoms  52  of the valve bodies  40   a - 40   j . As shown in  FIGS.  50 - 51   , the base plate  92  is in turn suitably secured in place using conventional mounting hardware, such as, for example, screws  51  inserted through mounting holes  100  and received in threaded mounting bosses  128  formed in the handle body  11 . While the removable base plate  92  provides access to the valve bodies  40   a - 40   j  for maintenance, and to the interior spaces of the handle body  11  as may from time-to-time be necessary for cleaning, the base plate  92  also forms an integral part of the preferred implementation of the diluent selector valves  82   a - 82   j.    
     As previously noted, each provided cup  83  is only partially rotatable in place within the lower cylindrical chamber  48  of a valve body  40   a - 40   j . To this end, and as also previously noted each cup  83  comprises a stop tab  88  at the lower exterior portion  87  of its cylindrical side wall  84 . As shown in  FIG.  52   , with reference to  FIG.  50    for perspective, the top side  93  of the base plate  92  is specially formed with a recess  94  corresponding to each valve body  40   a - 40   j , and sized, shaped and otherwise adapted to conformingly receive the exterior lower portion  87 , including the provided stop tab  88 , of each cup  83  fitted within a valve body  40   a - 40   j . As shown in the figures, each recess  94  has a circular arc portion  95  between a first stop  95  and a second stop  97 . As the base plate  92  is affixed about the cups  83  to close the bottom  15  of the handle body  11 , as shown in  FIG.  54   , care must therefore be taken to ensure that each cup  83  is properly aligned with its corresponding recess  94  such that the stop tab  88  of the cup  83  lies between the first stop  96  and second stop  97  opposite the circular arc portion  95  such that the lower exterior portion  87  of the cup is fully received within the recess  94 , as shown in  FIGS.  55 - 56   . It is now also noted that while the present invention could be implemented with the open topped cups  83  comprising only a single flow aperture through the cylindrical side wall  84 , provision of a first flow aperture  85  and a second flow aperture  86  enables a greatly decreased degree of rotation between the first stop  95  and the second stop  97 , thereby facilitating placement of the cups  83  within the limited available space. 
     Referring now to  FIGS.  57 A- 58 B , the cooperative arrangement of the cups  83  and base plate  92  is described in greater detail. As shown in  FIGS.  57 A and  58 A , when a cup  83  is properly seated with a recess  94  of the base plate  92 , as shown in  FIG.  56   , the blind slot  91  provided on the bottom side  90  of the cup  83  is accessible from the bottom side of the base plate  92 — that is, outside of the handle body  11 — through the diluent selection apertures  99  through the base plate  92 . As depicted in  FIG.  57 A , the blind slot  91  has been turned in the counterclockwise direction to the full rotational limit of the cup  83 , as shown in  FIG.  57 B  by the contact of the stop tab  88  of the cup  83  against the first stop  96  in the recess  94  of the base plate  92 . In this position, it is noted, the first flow aperture  85  through the cylindrical side wall  84  of the cup will be in alignment with the second diluent inlet port  50  of valve body  40   d . As depicted in  FIG.  58 A , the blind slot  91  has been turned in the clockwise direction to the full rotational limit of the cup  83 , as shown in  FIG.  58 B  by the contact of the stop tab  88  of the cup  83  against the second stop  97  in the recess  94  of the base plate  92 . In this position, it is noted, the second flow aperture  86  through the cylindrical side wall  84  of the cup will be in alignment with the first diluent inlet port  49  of valve body  40   d . As also shown in  FIGS.  57 B and  58 B , the conformance of the circular arc portion  95  of the recess  94  about the lower exterior portion  87  of the cup  83  serves to stabilize the axial alignment of the cup  83  and the diluent selection apertures  99 . 
     Referring now to  FIGS.  59 A- 59 E,  60 A- 60 E,  61 A- 61 E and  62 A- 62 E , the four states of operation of the representative valve unit  39   d  are shown and described. In  FIGS.  59 A- 59 E , the diluent selection valve  82   d  is positioned to align the second flow aperture  86  through the cup  83  with the first diluent inlet port  49  of the valve body  40   d , thereby selecting the first diluent for passage through valve supply branch  27   d  to the flow control valve  54   d . The flow control  14   d , however, is not actuated and, as a result, the upper land  70  of the flow control valve  54   d  blocks beverage product from beverage product supply conduit  31   d  from passing into the valve body  40   d  while the lower land  71  blocks the first diluent from valve supply branch  27   d  from passing into the valve body  40   d.    
     In  FIGS.  60 A- 60 E , the diluent selection valve  82   d  is positioned to align the second flow aperture  86  through the cup  83  with the first diluent inlet port  49  of the valve body  40   d , thereby selecting the first diluent for passage through valve supply branch  27   d  to the flow control valve  54   d . Because the flow control  14   d  is actuated, the upper land  70  is moved downward within the valve body  40   d  to allow passage of beverage product from beverage product supply conduit  31   d  through the valve body  40   d  and into beverage product dispensing conduit  35   d  and the lower land is moved downward within the valve body  40   d  to allow passage of the first diluent from valve supply branch  27   d  through the valve body  40   d  and into valve dispense branch  34   d  leading to the common diluents trunk  33 . 
     In  FIGS.  61 A- 61 E , the diluent selection valve  82   d  is positioned to align the first flow aperture  85  through the cup  83  with the second diluent inlet port  50  of the valve body  40   d , thereby selecting the second diluent for passage through valve supply branch  30   d  to the flow control valve  54   d . The flow control  14   d , however, is not actuated and, as a result, the upper land  70  of the flow control valve  54   d  blocks beverage product from beverage product supply conduit  31   d  from passing into the valve body  40   d  while the lower land  71  blocks the second diluent from valve supply branch  30   d  from passing into the valve body  40   d.    
     In  FIGS.  62 A- 62 E , the diluent selection valve  82   d  is positioned to align the first flow aperture  85  through the cup  83  with the second diluent inlet port  50  of the valve body  40   d , thereby selecting the second diluent for passage through valve supply branch  30   d  to the flow control valve  54   d . Because the flow control  14   d  is actuated, the upper land  70  is moved downward within the valve body  40   d  to allow passage of beverage product from beverage product supply conduit  31   d  through the valve body  40   d  and into beverage product dispensing conduit  35   d  and the lower land is moved downward within the valve body  40   d  to allow passage of the second diluent from valve supply branch  30   d  through the valve body  40   d  and into valve dispense branch  34   d  leading to the common diluents trunk  33 . 
     Finally, provision is made in the most preferred implementation of the hand-held beverage dispenser  10  of the present invention for the simple removal from the handle body  11  of the post-mix type drink dispenser assembly  104 . As previously noted, this provision turns squarely away from the longstanding practice in the prior art of providing a post-mix type drink dispenser assembly that is either unitary with the handle body or so highly integral therewith as to make removal or disassembly for maintenance impractical if not wholly impossible. In an effort to exceed the level of maintainability available in prior art dispensers, Applicant has developed post-mix type drink dispenser assembly  104  which is readily removable, as a module, from the handle body  11 . 
     In order to facilitate attachment of the inventive post-mix type drink dispenser assembly  104 , however, Applicant has found it desirable to provide connector tubes  101 , which, as particularly shown in  FIGS.  63  and  66   , are preferably press fit otherwise securely received in each of the fluid outlets  36  from the piping system  22  of exemplary preferred implementation of the hand-held beverage dispenser  10  of the present invention. It is noted, however, that while the provided connector tubes  101  are preferably securely attached to the fluid outlets  36 , they are most preferably readily removably, but sealingly, received with corresponding connector tube orifices  108  provided in the implemented post-mix type drink dispenser assembly  104 . In any case, the connector tubes  101 , as provided consistent with the otherwise previously described exemplary implementation of the hand-held beverage dispenser  10  of the present invention, include a plurality of product pathways  102  and a diluents pathway  103 . 
     As previously noted the details of an exemplary post-mix type drink dispenser assembly, which operates in a manner consistent with the present invention for the provision of post-mix beverages, are shown and described in U.S. patent application Ser. No. 16/394,889 filed Apr. 25, 2019 for METHODS AND APPARATUS FOR POST-MIX DRINK DISPENSING, which has been incorporated herein. In at least the most preferred implementations of this aspect of the present invention, the multiple stage bodies of such a described dispenser assembly are press fit together or otherwise made unitary, and mounted within a preferably aesthetic mounting body  118 . In this manner, the service industry employee that will typically care for the hand-held beverage dispenser  10  of the present invention will not be burdened with multiple parts that are easily lost or troublesome to assemble, while nonetheless making available the benefits of a removable nozzle assembly  104 . In any case, the removable post-mix type drink dispenser assembly  104  includes a plurality of connector tube orifices  108  for receiving one each of the distal ends of the connector tubes  101 . As shown in  FIG.  64   , product tube orifices  109  are provided for each product pathway  102  and a diluents orifice  110  is provided for the diluents pathway. It should be noted, however, that in at least some implementations of the present invention the previously described connector tubes  101  may be provided integral or unitary with, and as a component of, the removable nozzle assembly  104 , in which case the connector tubes  101  are readily removably, but sealingly received within, or otherwise attached in fluid communication with, the fluid outlets  36 . Finally, as particularly shown in  FIG.  66   , mounting holes  119  are provided through the aesthetic body  118 , and conventional mounting hardware  120  such as, for example, screws  121  pass through the mounting holes  119  and secure within provided drink dispenser assembly mounting holes  19  provided on the handle body  11 . 
     Referring now to  FIGS.  67 - 71    in particular, a preferred implementation of a second embodiment, according to the present invention, of a hand-held beverage dispenser  150  of the bar gun class is shown to generally comprise a handle body  151 , which, like the first embodiment, houses a novel piping system  158 , sharing many characteristics described with respect to the first embodiment, and as shown in detail for the first embodiment in, for example,  FIGS.  7 - 62   , and a post-mix type drink dispenser assembly  104 , which, as shown in the figures, is dependently coupled to the bottom  154  of the handle body  151  at a location adjacent the forward end  156  of the handle body  151 . 
     Like the previously described first embodiment, at least some preferred implementations of the second embodiment of the present invention contemplate the provision of a universal handle body  151  and piping system  158  suitable for use with any of a wide range of implementations for the post-mix type drink dispenser assembly  104 . That said, the exemplary post-mix type drink dispenser assembly shown and described in U.S. patent application Ser. No. 16/394,889 filed Apr. 25, 2019 for METHODS AND APPARATUS FOR POST-MIX DRINK DISPENSING, which has by prior reference been incorporated herein, operates in a manner consistent with, and is suitable for use in, the now described second embodiment of the hand-held beverage dispenser  150  of the present invention. 
     The second embodiment of the hand-held beverage dispenser  150  of the present invention operates, like the first embodiment, to dispense a mixture of a desired beverage product and its corresponding appropriate diluent in a single-button, ON-OFF type operation, and therefore also does not include features for pressure regulation and the like. As a result the second embodiment of the hand-held beverage dispenser  150  of the present invention is supplied with fluids through any of many readily commercially available flow control assemblies. As is generally conventional in the art, the suitably selected assembly is connected to the hand-held beverage dispenser  150  through a multiplicity of individual fluid lines, through which the assembly will supply fluids at appropriately regulated pressures. 
     The single-button, ON-OFF type operation implemented in the second embodiment of the hand-held beverage dispenser  150  is in keeping with Applicant&#39;s desire that the present invention should substantially adhere to the simple operation expected by countless service industry employees worldwide. To this end, a plurality of ON-OFF flow controls  153   a - 153   j  is familiarly provided at the top  152  of the handle body  151  of the hand-held beverage dispenser  150 . Additionally, the handle body  151  is most preferably ergonomically contoured about the sides  155  and bottom  154  to provide a secure, ambidextrous grip  178  for the end-user as the post-mix type drink dispenser assembly  104  is held steady over a beverage vessel while any of the ON-OFF flow controls  153   a - 153   j  is actuated (typically by thumb press), thereby increasing the comfort in hand and ease of use of the hand-held beverage dispenser  150 . 
     Also like the previously described first embodiment, the second embodiment of the hand-held beverage dispenser  150  of the present invention includes all basic handling and maintenance features typically expected by users. For example, and as particularly shown in  FIGS.  70 - 71   , a nozzle housing  122  for the mixer  105  (described in greater detail further herein) of the implemented exemplary post-mix type drink dispenser assembly  104  is readily removable to facilitate periodic cleaning of the post-mix type drink dispenser assembly  104 . To this end, as shown in the figures, the upper portion  124  of the inner surface  123  of nozzle housing  122  is provided with a plurality of locking tabs  125  operably adapted to engage mating nozzle housing locking members  112  provided about a portion of the mixer  105 . As shown in the figures, and as will be familiar to those of ordinary skill in the relevant arts as well as to service industry employees in general, the nozzle housing  122  locks in place with a partial twist about the mixer  105  in the clockwise direction, and is similarly released with a partial twist about the mixer  105  in the counterclockwise direction. 
     Although, as noted above, Applicant has taken effort to ensure that the preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention retains a familiar manner of operation, the second embodiment of the hand-held beverage dispenser  150 , like the previously described first embodiment, exceeds the level of maintainability of prior art dispensers. In particular, an alternative provision from that shown and described with respect to the first embodiment is made in the most preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention for the simple removal from the handle body  151  of the entire post-mix type drink dispenser assembly  104 . As will be shown and described further herein, the implemented provision not only facilitates flexibility in the development of a commercial offering, but also provides enhanced product safety. 
     Referring now to  FIGS.  72 - 76   , the novel piping system  158  of the present invention is shown to comprise various flow paths hosted substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 . For clarity at this juncture,  FIGS.  72 - 76    depict only the handle body  151  and those components formed unitary with, or otherwise tightly integrated within the general extents of, the handle body  151 . To this end, such components as aesthetic coverings, any particular interface to an external flow control assembly, the ON-OFF flow controls  153   a - 153   j , the post-mix type drink dispenser assembly  104 , and any other feature or component not fixed in place substantially within the extents of the handle body  151 , as otherwise may appear in  FIGS.  67 - 71    or elsewhere within this exemplary disclosure, are omitted from  FIGS.  72 - 76   . In any case, the novel piping system  158  of the second embodiment of the present invention, like the first embodiment, provides various flow paths through the hand-held beverage dispenser  150  between a plurality of fluid inlets  159  to the piping system  158  and a plurality of fluid outlets  174  from the piping system  158 , wherein at least some of the flow paths are selectively established. As will be better understood in the details set forth further herein, the novel piping system  158  of the present invention is adapted to enable, for each of a plurality of provided beverage products, end-user selection of any one of a plurality of provided diluents, whereafter the selected diluent is dispensed concurrently with the beverage product for which the selection has been made. 
     As particularly shown in  FIGS.  72 - 73   , the plurality of fluid inlets  159  is provided at the rear end  157  of the handle body  151 , and, for the depicted exemplary implementation, includes a first diluent inlet  160  and a second diluent inlet  161 . Additionally, the plurality of fluid inlets  159  includes a plurality of beverage product inlets  162   a - 162   h , there being provided one beverage product inlet  162   a - 162   h  for each of the number of beverage products that the implementation of the hand-held beverage dispenser  150  is capable of dispensing on demand. As discussed with respect to the first embodiment, however, the number of diluent inlets may be expanded to three or more, some aspects of the present invention apply to beverage systems utilizing only one diluent, and/or the implemented number of beverage product inlets may vary widely with such considerations as requirements of the intended commercial market, desired limits on the size or shape of the hand-held beverage dispenser  150 , manufacturing cost, and the like. As also discussed with respect to the first embodiment, all such adjustments or modifications will, in light of this exemplary description, be readily within the ordinary skill in the relevant arts. 
     In any case and as previously noted, the second embodiment of the hand-held beverage dispenser  150  of the present invention may be supplied with fluids through any of many readily commercially available flow control assemblies. In particular, individual fluid lines from a flow control assembly are typically collected within an elongate sheath tube, which, along with the fluid lines, terminates at a set of connectors sized, shaped and otherwise adapted to provide a fluid-tight interface between each fluid line a corresponding one of the fluid inlets  159  disposed at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 . As will be appreciated by those of ordinary skill in the relevant arts, the fluid inlets  159  are readily provided with any additional connector hardware as may be required to connect to the fluid lines from the flow control assembly. 
     As particularly shown in  FIGS.  74 - 75   , the previously mentioned plurality of fluid outlets  174  is provided at the bottom  154  and adjacent the forward end  156  of the handle body  151 . Like the first embodiment of the hand-held beverage dispenser  10 , the outlets  174  are placed and arranged to conduct dispensed fluids to the post-mix type drink dispenser assembly  104 . For the depicted exemplary implementation of second embodiment of the hand-held beverage dispenser  150 , the fluid outlets  174  include a single, common diluents outlet  175 , and a plurality of beverage product outlets  176   a - 176   h , there being provided one beverage product outlet  176   a - 176   h  for, and corresponding to, each one of the provided beverage product inlets  162   a - 162   h.    
     Also like the previously described first embodiment, the second embodiment of the hand-held beverage dispenser  150  of the present invention is adapted to dispense a pressurized beverage fluid, as supplied at a suitable flow rate from a flow control assembly through one of the beverage product inlets  162   a - 162   h , from a corresponding one of the beverage product outlets  176   a - 176   h , and into the post-mix type drink dispenser assembly  104 . Additionally, the second embodiment of the hand-held beverage dispenser  150  is adapted to concurrently dispense either a first pressurized diluent, as supplied at a suitable flow rate from the flow control assembly or other source through the first diluent inlet  160 , or, in the alternative, a second pressurized diluent, as supplied at a suitable flow rate from the flow control assembly or other source through the second diluent inlet  161 , from the single, common diluent outlet  175 , and into the post-mix type drink dispenser assembly  104  where the end-user selected first or second diluent is mixed with the simultaneously dispensed beverage product. Although, as shown in  FIGS.  74 - 75   , the exemplary implementation of the second embodiment of the present invention comprises a single, common diluent outlet  175 , a plurality of separate diluent outlets (for example, one for each diluent) may also be implemented within the scope of the present invention. 
     As particularly shown in  FIGS.  67  and  71   , a set of ON-OFF flow controls  153   a - 153   h  is provided at the top  152  of the handle body  151  of the hand-held beverage dispenser  150 , a single ON-OFF flow control  153   a - 153   h  being for and corresponding to beverage product introduced through one each of the provided beverage product inlet  162   a - 162   h  (shown in  FIG.  73   ) for dispensing from the also corresponding beverage product outlet  176   a - 176   h  (shown in  FIG.  75   ). Like the first embodiment, however, the most preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention additionally includes a pair of ON-OFF flow controls  153   i - 153   j , each dedicated to dispensing a diluent only. What is more, in at least the most preferred implementations of the present invention, the provision of either the first or second diluent is also end-user selectable for each of ON-OFF flow controls  153   i - 153   j . In any case, simply depressing an ON-OFF flow control  153   a - 153   j  will cause flow of either a beverage product and its corresponding selected diluent, or a diluent alone. 
     At this point, it is again noted that the readily available flow control assemblies generally provide a capability for changing, on an ad hoc basis, the particular beverage product associated with a particular fluid line, and hence, in the case of the described exemplary implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention, supplied to the respective beverage product inlet  162   a - 162   h . Although, as discussed with respect to the first embodiment, such changes may be carried out without affecting operation through any other fluid line of the dispenser, any particular change is subject to the ability of the newly supplied beverage product to be mixed with an appropriate diluent. Because, however, and as will be discussed in detail throughout this exemplary specification, the provision of either the first or second diluent is end-user selectable on a per beverage product inlet  162   a - 162   h  basis (equivalently described as on a per beverage product outlet  176   a - 176   h  basis), the correct diluent may readily be dispensed for any beverage product flowing through any beverage product inlet  162   a - 162   h  (beverage product outlet  176   a - 176   h ). What is more, and like the previously described first embodiment, the second embodiment of the hand-held beverage dispenser  150  also achieves the important advance over the prior art of enabling end-user selection of the first or second diluent without requiring disassembly of the hand-held beverage dispenser  150 , depressurization of any flow path through the hand-held beverage dispenser  150  or its fluids-supplying flow control assembly, or any other disruption of the operation of the hand-held beverage dispenser  150 . 
     As previously noted, the hand-held beverage dispenser  150  of the present invention includes a novel piping system  158 , which is housed within the previously described handle body  151 . Broadly described, the piping system  158  comprises a number of fluid conduits originating at various fluid inlets  159 , as shown in  FIGS.  72 - 73   , or terminating at various fluid outlets  174 , as shown in  FIGS.  74 - 75   . Additionally, however, the piping system  158  comprises a plurality of valve units  177   a - 177   j , as schematically shown in  FIGS.  77  and  78 A- 78 D  and described in greater detail further herein. As also will be described in greater detail further herein, each of the plurality of valve units  177   a - 177   j  is interposed between the fluid conduits from the fluid inlets  159  and the fluid conduits to the fluid outlets  174 , as shown in  FIGS.  77  and  78 A- 78 D . Still further, each such valve unit  177   a - 177   j  is inventively implemented about a corresponding valve body  179   a - 179   j , wherein a corresponding flow control valve  180   a - 180   j  and a corresponding diluent selection valve  181   a - 181   j  are integrally formed, as schematically shown in  FIGS.  77  and  78 A- 78 D  and partially shown in place within the exemplary hand-held beverage dispenser  150  in  FIGS.  74 - 76   , and as will be described in greater detail further herein. Finally, and as will be better understood further herein, the implemented valve units  177   a - 177   j  together function to provide the previously mentioned novel end-user selective establishment of various flow paths through the hand-held beverage dispenser  150  of the present invention. 
     At this juncture, it is again noted that when referring to various valves, whether in describing or claiming any of the present invention, the term “functionally independent” shall mean that each one of a plurality of valves may be actuated, operated or otherwise used in its normal function without regard to the state of any other such valve, and that actuation, operation or other use of any such valve shall not cause any change in state of any other such valve. Likewise, when referring to various valves, whether in describing or claiming any of the present invention, the term “distinct” shall mean that each one of a plurality of valves performs mutually exclusive function functions, e.g. a first valve turning a flow on or off and a second valve selecting a single source from many when neither valve is provided with the capability to perform the function of the other. 
     To ensure clarity in the discussions to follow, it is at this juncture noted that in the exemplary implementation of the novel piping system  158  of the second embodiment of the hand-held beverage dispenser  150  of the present invention, as schematically shown in  FIGS.  77  and  78 A- 78 D  and now described, beverage product inlet  162   a  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   a , and valve body  179   a  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   a ; beverage product inlet  162   b  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   b , and valve body  179   b  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   b ; beverage product inlet  162   c  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   c , and valve body  179   c  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   c ; beverage product inlet  162   d  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   d , and valve body  179   d  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   d ; beverage product inlet  162   e  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   e , and valve body  179   e  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   e ; beverage product inlet  162   f  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   f , and valve body  179   f  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   f ; beverage product inlet  162   g  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   g , and valve body  179   g  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   g ; and beverage product inlet  162   h  is in fluid communication, through a correspondingly provided fluid conduit, with valve body  179   h , and valve body  179   h  is in fluid communication, through a further correspondingly provided fluid conduit, with beverage product outlet  176   h . Additionally, the first diluent inlet  160  is in fluid communication with each of the valve bodies  179   a - 179   j  through a corresponding shared fluid conduit, and the second diluent inlet  161  is in fluid communication with each of the valve bodies  179   a - 179   j  through a separate corresponding shared fluid conduit. Finally, each of the valve bodies  179   a - 179   j  is in fluid communication with the single, common diluents outlet  175  through yet another shared fluid conduit. 
     To doubly ensure clarity in the discussions to follow, various details of the structure of a representative valve body  179   d  are shown, in various views, in  FIGS.  79 - 87   , as particularly implemented according to the teachings of the second embodiment of the hand-held beverage dispenser  150  of the present invention. In an important aspect of at least the most preferred embodiments of the present invention, it is noted that at least the internal shapes and structures of each valve body  179   a - 179   j , and at least some aspects of any implemented ports or other openings into or out of the interior spaces of the valve bodies  179   a - 179   j , may be and most preferably are, substantially identical from one valve body to another. The exterior shapes and other details, as well as some other aspects of any implemented ports or other openings into or out of the interior spaces of the valve bodies  179   a - 179   j , however, may vary widely from one valve body to another. Any such divergence from the representative exemplary valve body  179   d , as the valve body  179   d  is now or later described, will however be clearly noted in the discussions to follow. That said, it is reiterated that the representative arrangement of particular structures, openings and other details of valve body  179   d  is, like the whole of this present description, exemplary only, and other implementations within the scope of the present invention may require, prefer or allow for more or less consistency from one valve body to another. 
     As best shown in  FIGS.  79 - 87   , the representative valve body  179   d , according to the second preferred implementation of the hand-held beverage dispenser  150  of the present invention, generally comprises a tubular structure, having a stepped orifice running therethrough between the top  182  of the valve body  179   d  and the bottom  198  of the valve body  179   d . As will be better understood further herein, a central axis  206  running top  182  to bottom  198  through the valve body  179   d  is defined by various cylindrical structures of the stepped orifice centered about the central axis  206 . Additionally and as also will be better understood further herein, the central axis  206  establishes origin or central points of radial vectors, central arcs, and the like with or along which various features of exemplary valve unit  177   d  run, are aligned, or are otherwise oriented. Unless indicated otherwise, reference to a central point, radial vector or the like of any structure of the valve body  179   d , or any other component or structure thereof of the valve unit  177   d , is to be understood as being with respect to the central axis  206 , as the structure or component is operatively integrated into the valve unit  177   d.    
     In any case, and as particularly shown in combined  FIGS.  79 - 81  and  85 - 87   , the stepped orifice of the exemplary valve body  179   d  is formed or otherwise provided as a preferably cylindrical upper chamber  185 , having a first internal diameter, atop an intermediate chamber  187  comprising a cylindrical interior wall  188  formed about central axis  206  and having a second internal diameter greater than the first internal diameter of the upper chamber  185 , atop a lower chamber  192  comprising a cylindrical interior wall  193  formed about central axis  206  and having a third internal diameter greater than the second internal diameter of the cylindrical interior wall  188  of the intermediate chamber  187 . Additionally, in any implementation of the upper chamber  185  in the preferred cylindrical interior shape, the cylindrical upper chamber  185  is also formed about central axis  206 . 
     As also shown in the figures, a plurality of valve ports is formed through the side walls of the valve body  179   d  to selectively provide fluid communication to or from within the valve body  179   d  from or to without the valve body  179   d , according to the operational state of the valve unit  177   d , as will be better understood further herein. To this end and as particularly shown in  FIGS.  83 - 87    for the exemplary only implementation, a beverage product inlet port  189  is formed through the side wall of the valve body  179   d  and into the uppermost portion of the intermediate chamber  187 , and a beverage product outlet port  186  is formed through the side wall of the valve body  179   d  and out of the upper chamber  185 . Additionally, a first diluent inlet port  196  and a second diluent inlet port  197  are each formed through the side wall of the valve body  179   d  and into the uppermost portion of the lower chamber  192 . Still further, a diluent outlet port  191  is formed through the side wall of the valve body  179   d  and out of the lower portion of the intermediate chamber  187 . At this juncture, it should be well noted that, for any particular valve body, the first diluent inlet port  196  need not correspond exclusively to the first diluent inlet  160 , and, likewise, the second diluent inlet port  197  need not correspond exclusively to the second diluent inlet  161 . To be sure, the assignment for any given diluent inlet port will depend largely on the ability to accommodate the fluid conduits providing fluid communication between the first diluent inlet  160  and the second diluent inlet  161  and one each of the first diluent inlet port  196  and the second diluent inlet port  197  within the very limited available space about any particular one of the valve bodies  179   a - 179   j , as will be better understood further herein. 
     As previously noted, the novel piping system  158  of the present invention enables an end-user to selectively establish various flow paths through the hand-held beverage dispenser  150  in order to select, on a beverage product-by-beverage product basis, one of a plurality of available diluents for dispensing from the hand-held beverage dispenser  150  with the beverage product. In particular, as will be better understood further herein, each provided valve unit  177   a - 177   j  inventively implements two distinct valves about a single valve body  179   a - 179   j , whereby the novel arrangement of the present invention is capable of realizing a flow control valve  180   a - 180   j  and a diluent selection valve  181   a - 181   j  for at least each beverage product to be dispensed by the hand-held beverage dispenser  150 . Additionally, for every beverage product to be dispensed, a flow control valve  180   a - 180   j  and a diluent selection valve  181   a - 181   j , implemented in accordance with the teachings of the present invention, may be provided substantially within the handle body  151  of the hand-held beverage dispenser  150 . Accordingly, many details of the exemplary preferred implementation of the representative valve body  179   d  are directed toward accommodating or otherwise forming the novel structures of the diluent selection valves  181   a - 181   j  and the flow control valves  180   a - 180   j , as particularly implemented within the limited area available. 
     Referring still to  FIGS.  79 - 87   , a number of features of the representative valve body  179   d  are shown as most preferably provided for integral use in the preferred implementations of the diluent selection valve  181   d  and the flow control valve  180   d , in accordance with the second preferred implementation of the hand-held beverage dispenser  150  of the present invention, and as each will be better understood further herein. Those of ordinary skill in the relevant arts will, in light of this exemplary description, recognize possible variations to the described features. That said, it is noted that each of the structures, as now and further herein described, is most preferably implemented, provided, arranged and otherwise adapted and optimized to facilitate precise and reliable operation of each valve unit  177   a - 177   j , while also contributing to the necessarily efficient use of available space, all of which will be better understood further herein. 
     Beginning with features that will be better understood further herein as being particularly directed toward implementation of the previously identified diluent selection valve  181   d , it is first noted that, as previously described, the lower chamber  192  of the implemented stepped orifice comprises a cylindrical interior wall  193  formed about central axis  206  and having a greatest internal diameter of any chamber of the valve body  179   d  forming a part of the stepped orifice. As particularly shown in  FIGS.  80  and  82 - 84   , the valve body  179   d  also comprises a circular open end  199 , which is located at the bottom  198  of the valve body  179   d  and opens into the lowermost portion of the lower chamber  192 . As will be better understood further herein, the provided circular open end  199  is of a size commensurate with the third, and largest, internal diameter of the stepped orifice as established by the cylindrical interior wall  193  of the lower chamber  192 . Like the cylindrical interior wall  193  of the lower chamber  192 , the circular open end  199  at the bottom  198  of the valve body  179   d  is also concentric about the central axis  206 , and thus in alignment with the cylindrical interior wall  193  of the lower chamber  192 . 
     As will be described in greater detail further herein, the open end  199  at the bottom  198  of the valve body  179   d  provides access to the interior of the valve body  179   d  for insertion to the valve body  179   d  of substantially the entire valve trim of the valve unit  177   d . Additionally, however, the provided circular open end  199 , along with the lower chamber  192 , is adapted to not only receive valve trim in the assembly of the valve unit  177   d , but also provides access to an open topped cup  207 , which will be described in greater detail further herein as a key component of the diluent selection valve  181   d , for user manipulation of the open topped cup  207  in operation of the diluent selection valve  181   d . As will also be better understood further herein, it is through the provision of the circular open end  199  that at least a stop tab  217  forming an important aspect of the open topped cup  207  remains operably without the valve body  179   d , where in cooperation with other components of the hand-held beverage dispenser  150  of the present invention the stop tab  217  forms an element of a poka-yoke mechanism delivering fundamental functionality of the diluent selection valve  181   d.    
     For employment in connection with the stop tab  217  formed or otherwise provided as part of the open topped cup  207 , a notch  201  is formed in the circular open end  199  at the bottom  198  of the valve body  179   d , as particularly shown in  FIGS.  79 - 80 ,  83 - 84  and  86 - 87   . As shown in the figures, the notch  201  intersects the portion of the cylindrical interior wall  193  of the lower chamber  192  at the bottom  198  of the valve body  179   d  to define a first stop  202  and a second stop  24  unitary with the valve body  179   d . As also shown in the figures, the first stop  202  comprises a preferably planar edge  203  most preferably lying in a vertical plane intersecting the central axis  206 . Likewise, the figures also show the second stop  204  comprising a preferably planar edge  205  as most preferably implemented to lie within a vertical plane also intersecting the central axis  206 . Implemented as preferred, the edge  203  of the first stop  202  and the edge  205  of the second stop  204  are radially disposed in an arc about the circular open end  199  at the bottom  198  of the valve body  179   d . Accordingly, the measure of the disposing arc is characterized by the central angle of the previously defined central axis  206  that is congruent with the arc—that is, the central angle of the central axis  206  that intercepts the endpoints of the arc of the notch  201  at the edge  203  of the first stop  202  and the edge  205  of the second stop  204 , and, which hereinafter is referred to as the congruent central angle of the notch  201 . 
     Also in furtherance of the preferred implementation of the diluent selection valve  181   d  of the exemplary valve unit  177   d  of the second embodiment of the hand-held beverage dispenser  150  of the present invention, the valve body  179   d  comprises a shoulder  194  about the cylindrical interior wall  192  at the top of the lower chamber  192 , and projecting inwardly from the cylindrical interior wall  192  in the direction of the central axis  206 . As will be better understood further herein, the provided shoulder  194  is adapted to retain the previously introduced open topped cup  207  operatively in place substantially within the lower chamber  192 , and more particularly to provide an upper barrier against which an upper edge  211  of a cylindrical side wall  208  of the open topped cup  207  abuts. In this manner, the shoulder  194  hard limits insertion into the valve body  179   d  of the open topped cup  207 , as will be more particularly shown further herein. Additionally, it is noted that the open topped cup  207  will from time-to-time in use of the present invention rotate about the central axis  206  while operatively in place within the lower chamber  192 . To this end, the shoulder  194  about the cylindrical interior wall  192  at the top of the lower chamber  192  most preferably comprises a downwardly facing, horizontally oriented planar surface lying within a plane transverse to the central axis  206  through the valve body  179   d.    
     As previously introduced, a plurality of valve ports is formed through the side walls of the valve body  179   d  to selectively provide fluid communication to or from within the valve body  179   d  from or to without the valve body  179   d . As particularly pertain to the preferred implementation of the diluent selection valve  181   d  of the exemplary valve unit  177   d , and as shown in  FIGS.  83 - 87   , a first diluent inlet port  196  and a second diluent inlet port  197  are each formed through the side wall of the valve body  179   d  and into the uppermost portion of the lower chamber  192 . As also shown in the figures, and as will be better understood further herein, the fluid conduits of the piping system  158  of the second preferred implementation of the hand-held beverage dispenser  150  of the present invention include a valve supply branch  165   d  that is connected to, formed integral or unitary with, or otherwise interfaces to the first diluent inlet port  196  of valve body  179   d  for supplying a first diluent to valve unit  177   d , as sourced from additional upstream fluid conduits of the piping system  158  described in detail further herein. Likewise, the fluid conduits of the piping system  158  include a valve supply branch  168   d  that is connected to, formed integral or unitary with, or otherwise interfaces to the second diluent inlet port  197  of valve body  179   d  for supplying a second diluent to valve unit  177   d , as also sourced from additional upstream fluid conduits of the piping system  158  and also described in detail further herein. 
     Additionally and as best shown in  FIGS.  85 - 87   , a single diluent outlet port  191  is formed through the side wall of the valve body  179   d  and out of the lower portion of the intermediate chamber  187 . As also shown in the figures, and as will be better understood further herein, the fluid conduits of the piping system  158  of the second preferred implementation of the hand-held beverage dispenser  150  of the present invention include a valve dispense branch  172   d  that is connected to, formed integral or unitary with, or otherwise interfaces to the diluent outlet port  191  of valve body  179   d . The valve dispense branch  172   d , as interfaced with the diluent outlet port  191  of valve body  179   d , conducts either the first diluent or the second diluent from valve unit  177   d  and through additional downstream fluid conduits of the piping system  158  to be dispensed from the hand-held beverage dispenser  150 , as described in detail further herein. The first diluent or the second diluent, as supplied to the valve unit  177   d  through a corresponding one of either first diluent inlet port  196  or the second diluent inlet port  197 , is selected for conduct through the diluent outlet port  191  of valve body  179   d  according to the operative state of the diluent selection valve  181   d  of the exemplary valve unit  177   d , as will be better understood further herein. 
     Although a complete understanding of the features provided by the valve body  179   d  in implementation of the diluent selection valve  181   d  can only be had with the further discussions to follow as are particularly directed to the provision and use of the diluent selection valve  181   d , the discussion to follow are aided by now noting some of the more important constraints placed on the valve body  179   d  by the particular implementation of the diluent selection valve  181   d  devised for realization of the valve unit  177   d . For example, the specific implementation of the diluent selection valve  181   d , as presented in this exemplary description, requires: (1) that the first diluent inlet port  196  and the second diluent inlet port  197  be arranged at the same vertical position about the valve body  179   d ; and (2) that the second diluent inlet port  197  be formed through the side wall of the valve body  179   d  at a suitable location at an established arc length about the side wall of the valve body  179   d  apart from a suitable location at which the first diluent inlet port  196  is formed through the side wall of the valve body  179   d.    
     In meeting the first of the forgoing requirements, the first diluent inlet port  196  and the second diluent inlet port  197  are each formed at a location about the side wall of the valve body  179   d  intersecting horizontal plane P 23 , as is shown in  FIGS.  85 - 87   . As to the second of the requirements, it is noted that in locating the first diluent inlet port  196  and the second diluent inlet port  197  at separate positions, each of which intersects plane P 23 , about the side wall of the valve body  179   d , the first diluent inlet port  196  and the second diluent inlet port  197  are radially disposed in an arc about the side wall of the valve body  179   d . Accordingly, the measure of the disposing arc is characterized by the central angle of the previously defined central axis  206  that is congruent with the arc—that is, the central angle of the central axis  206  that intercepts the endpoints of the arc of the side wall of the valve body  179   d  at the location of the first diluent inlet port  196  and the location of the second diluent inlet port  197 , and which hereinafter is referred to as the congruent central angle of the diluent inlet ports  196 ,  197 . 
     It is noted that the foregoing discussion additionally requires that the first diluent inlet port  196  and the second diluent inlet port  197  be placed at “suitable” locations. As previously noted, the piping system  158  of the second embodiment of the hand-held beverage dispenser  150  of the present invention is be implemented substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 , as will also be discussed in more detail further herein. This constraint, which is similarly shared by all of the previously described valve ports formed through the side walls of the valve body  179   d , necessitates that a suitable pair of locations about the side wall of the valve body  179   d  that each also intersect plane P 23  must also accommodate routing each of the valve supply branch  165   d  interfacing with the first diluent inlet port  196  and the valve supply branch  168   d  interfacing with the second diluent inlet port  197  away from the valve body  179   d  and into fluid communication with respective other fluid conduits of the piping system  158 , all substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 . Still further, however, it is important to note carefully that establishment of the congruent central angle of the diluent inlet ports  196 ,  197 , the location of the ports  196 ,  197  already being burdened with the forgoing constraints, will have a ripple effect constraining, or even largely defining, the implementation of many aspects of the present invention, as will be better understood in the discussions to follow. That said, the full import of the value established or otherwise determined for the congruent central angle of the diluent inlet ports  196 ,  197 , should be fully appreciated prior to locating the first diluent inlet port  196  and the second diluent inlet port  197 . To be sure, other constraints on affected components of the hand-held beverage dispenser  150  of the present invention are very likely to ripple back to in fact impose even further constraints on what constitute “suitable” locations for the first diluent inlet port  196  and the second diluent inlet port  197 . 
     Transitioning now from those features of the valve body  179   d  particularly directed toward implementation of the diluent selection valve  181   d  to examine features of the valve body  179   d  that will be better understood further herein as being particularly directed toward implementation of the previously identified flow control valve  180   d  of the exemplary valve unit  177   d , but remaining focused primarily on various of  FIGS.  79 - 87   , attention is drawn once again to the previously described stepped orifice through the valve body  179   d . First, however, it is noted that in the most general terms the flow control valve  180   d  is implemented in a novel valve structure comprising what may be considered a linked set of poppet-type valves. With this, it is further noted that the transition, or step, between the cylindrical upper chamber  185  of the valve body  179   d  and the intermediate chamber  187  of the valve body  179   d  implements an upper valve seat  190  for the flow control valve  180   d , and the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d  implements a lower valve seat  195  for the flow control valve  180   d.    
     Isolation between fluid flows of an upper one of the poppet-type valves and fluid flows of a lower one of the poppet-type valves is effected within the intermediate chamber  187  of the valve body  179   d  all the while the intermediate chamber  187  additionally accommodates operable linkage of the linked set of poppet-type valves. In accordance with the now described exemplary valve unit  177   d , the cylindrical interior wall  188  of the intermediate chamber  187  of the valve body  179   d  is therefore sized, shaped and otherwise adapted to operably support implementation within the intermediate chamber  187  of a customized reciprocating wiper seal. Still further, the intermediate chamber  187  together with the upper chamber  185  and the lower chamber  192  of the valve body  179   d  concurrently form the base structure for, and must each generally be sized, shaped and otherwise adapted to accommodate, the diverse complement of components and features that constitute the valve trim of the valve unit  177   d . In accordance with the present invention, the inventive valve unit  177   d , as illustrated through this present detailed description, balances or otherwise resolves any conflicting requirement or other tension between the components in order to provide the described highly optimized novel valve unit  177   d  at the core of the piping system  158  of the second embodiment of the hand-held beverage dispenser  150  of the present invention. 
     As particularly shown in  FIGS.  79  and  85 - 87   , a flow control valve actuator orifice  183  is provided at the top  182  of the valve body  179   d , and, as will be better understood further herein, must accommodate leak-proof reciprocation therethrough of a portion  229  of a cylindrical valve rod  228 . To this end, the valve body  179   d  comprises an annulus  184  about the as implemented cylindrical flow control valve actuator orifice  183 , and projecting inwardly from the flow control valve actuator orifice  183  in the direction of the central axis  206 . As most particularly shown in  FIGS.  85 - 87   , the annulus  184  slightly reduces the diameter of the flow control valve actuator orifice  183 , which is generally coextensive with the upper chamber of the valve body  179   d , in order to dependently receive and retain in place an upper seal  259  for the flow control valve  180   d  of the valve unit  177   d . As a result, the provided annulus  184  must be sized, shaped and otherwise adapted to accommodate the upper seal  259 , the implementation and full functionality of which will be detailed further herein. 
     As previously noted, the transition between the upper chamber  185  of the valve body  179   d  and the intermediate chamber  187  of the valve body  179   d  implements an upper valve seat  190  for the flow control valve  180   d , and the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d  implements a lower valve seat  195  for the flow control valve  180   d . In accordance with the preferred implementation of the valve body  179   d  of the second embodiment of the present invention, the upper chamber  185  is cylindrical about the central axis  206  of the valve body  179   d . As a result, the upper valve seat  190  for the flow control valve  180   d  is readily formed within the valve body  179   d  as a chamfer, or other profile operatively shaped for sealing engagement by the corresponding structure of the flow control valve  180   d , between the cylindrical interior wall  188  of the intermediate chamber  187  and the cylindrical upper chamber  185 . 
     As previously discussed, the lower chamber  192  of the valve body  179   d  operably receives therein the open topped cup  207 , as forms a key component of the diluent selection valve  181   d  of the valve unit  177   d . As also previously discussed the shoulder  194  about the cylindrical interior wall  192  at the top of the lower chamber  192  retains the open topped cup  207  operatively in place substantially within the lower chamber  192 , and for purposes of the diluent selection valve  181   d  the shoulder  194  is most preferably formed as a horizontally oriented surface contained within a plane transverse to the central axis  206  through the valve body  179   d . In addition to its functionality with respect to the diluent selection valve  181   d , however, in the innovative valve unit  177   d  of the present invention the open topped cup  207  is also integral to the implementation of the flow control valve  180   d . In particular, various aspects of an interior space  213  of the open topped cup  207 , defined in part by a cylindrical interior surface  210  of the previously noted cylindrical side wall  208  of the open topped cup  207 , interoperate with various aspects of a flow control valve trim assembly  227  of the flow control valve  180   d  to implement the flow control valve  180   d  of the valve unit  177   d.    
     To simultaneously accommodate implementation of both the diluent selection valve  181   d  and the flow control valve  180   d , as will be better understood further herein, the inside edge  200  of the shoulder  194  at the top of the lower chamber  192 , and within the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d , must have a diameter about the central axis  206  that is (1) less than the third internal diameter of the cylindrical interior wall  193  of the lower chamber  192  by at least the twice the sum of the radial thickness of the cylindrical side wall  208  of the open topped cup  207  and any gap space to be provided between the cylindrical side wall  208  of the open topped cup  207  and the cylindrical interior wall  193  of the lower chamber  192 , and (2) greater than the second internal diameter of the cylindrical interior wall  188  of the intermediate chamber  187 . Preferably, however, the diameter about the central axis  206  of the inside edge  200  of the shoulder  194  will be approximately equal to or slightly less than the diameter about the central axis  206  of the cylindrical interior surface  210  of the cylindrical side wall  208  of the open topped cup  207 , as the open topped cup  207  is operatively assembled within the valve body  179   d  in formation of the valve unit  177   d.    
     With the constraints of the shoulder  194  at the top of the lower chamber  192  of the valve body  179   d  met, the lower valve seat  195  for the flow control valve  180   d  is readily formed within the valve body  179   d  as a bevel, or other profile conforming to the corresponding structure of the flow control valve  180   d , between the inside edge  200  of the shoulder  194  formed within the lower chamber  192  of the valve body  179   d  and the cylindrical interior wall  188  of the intermediate chamber  187  of the valve body  179   d.    
     It is now recalled that in discussing features of the representative valve body  179   d  particularly directed toward at least the specific implementation diluent selection valve  181   d  as presented in this exemplary description, a number of constraints were identified specifically for provision of the first diluent inlet port  196  and the second diluent inlet port  197 , and also more generally for each of the previously described valve ports formed through the side walls of the valve body  179   d . In particular, it was determined that for at least the specific implementation of the diluent selection valve  181   d , as herein described, the first diluent inlet port  196  and the second diluent inlet port  197  must each be formed at a respective location about the side wall of the valve body  179   d  intersecting the horizontal plane P 23 , as shown in  FIGS.  85 - 87   . Additionally, it was determined that the first diluent inlet port  196  and the second diluent inlet port  197  must be disposed in an arc about the side wall of the valve body  179   d , and radially separated one from the other by a value designated as the central angle of the diluent inlet ports  196 ,  197 . The central angle of the diluent inlet ports  196 ,  197  is established on careful consideration of the necessary interoperability between the first diluent inlet port  196  and the second diluent inlet port  197 , as located one to the other, and numerous other components of or related to the valve unit  177   d , the implementations of which will be understood further herein to depend or otherwise be affected by the established value of the central angle of the diluent inlet ports  196 ,  197 . 
     Finally, it was determined in considering the general requirement of “suitable” locations, that each of the previously described valve ports formed through the side walls of the valve body  179   d  must be located so as to accommodate routing substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150  of every fluid conduit interfacing with any of the valve ports, and any fluid conduit between an interfacing conduit and either a fluid inlet  159  or a fluid outlet  174  to or from the handle  151 . As will be recognized by those of ordinary skill in the relevant arts in light of this exemplary description, this final constraint on the features of the exemplary valve body  179   d  is applicable as much for integral use of the flow control valve  180   d  as it is for integral use of the diluent selection valve  181   d.    
     Each of the foregoing constraints on formation through the side walls of the valve body  179   d  of the previously identified valve ports remains, of course, unaffected by any constraint imposed for effective integral use of the flow control valve  180   d , each of which is in addition to the previously identified constraints. That said, it is now noted that beyond the general constraint for accommodating routing of the elements of piping system  158  substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 , and the constraint on the relative vertical locations the first diluent inlet port  196  and the second diluent inlet port  197  within horizontal plane P 23 , none of the thus far identified constraints place any restriction on the absolute vertical location of any of the previously described valve ports formed through the side walls of the valve body  179   d , the absolute vertical positions of each of which are, with respect to the exemplary valve body  179   d , identified horizontal planes P 21 -P 24 . Additionally, beyond the general constraint for accommodating routing of the elements of piping system  158  substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 , the constraint on the relative vertical locations the first diluent inlet port  196  and the second diluent inlet port  197  within horizontal plane P 23 , and the requirement to establish a particular radial separation between the first diluent inlet port  196  and the second diluent inlet port  197 , none of the thus far identified constraints places any restriction on the absolute radial location about the valve body  179   d  of any of the previously described valve ports formed through the side walls of the valve body  179   d.    
     Referring still to  FIGS.  85 - 87   , it is noted that the detailed descriptions to follow of the diluent selection valve  181   d  and the flow control valve  180 , and more particularly of the integration of the diluent selection valve  181   d  and the flow control valve  180  within the valve body  179   d , will reveal that an upper one of the linked set of poppet-type valves, as inventively implemented in the flow control valve  180 , will in operation generally reciprocate within the intermediate chamber  187  of the valve body  179   d  in the space between the upper valve seat  190  formed at the transition between the cylindrical upper chamber  185  and the intermediate chamber  187  of the valve body  179   d  and the midsection of the intermediate chamber  187  above the diluent outlet port  191  of valve body  179   d . Similarly, the foregoing detailed descriptions to follow will reveal that a lower one of the linked set of poppet-type valves, as inventively implemented in the flow control valve  180 , will in operation generally reciprocate within the previously introduced interior space  213  of the open topped cup  207 , as the open topped cup  207  is operatively assembled lower chamber  192  of the valve body  179   d , between the lower valve seat  195  formed at the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d  and the bottom  214  of the interior space  213  of the open topped cup  207 . 
     Additionally and in an important aspect of the present invention, the detailed descriptions to follow will make clear that the most advantageous integration of the flow control valve  180  within the valve body  179   d  is obtained by locating the beverage product inlet port  189  through the side wall of the valve body  179   d  at the uppermost portion of the intermediate chamber  187  and as near as otherwise practicable to the upper the upper valve seat  190 , which location is identified as horizontal plane P 21 , while also locating each of the first diluent inlet port  196  and the second diluent inlet port  197  through the side wall of the valve body  179   d  at the uppermost portion of the lower chamber  192  and as near as otherwise practicable to the lower valve seat  195 , which location is identified as horizontal plane P 23 . Still further and as previously noted, the upper seal  259  for the flow control valve  180   d  is dependently received and retained in place within the flow control valve actuator orifice  183 , but also extends a distance into the upper chamber  185  of the valve body  179   d , as will be made clear in the discussions to follow. Accounting then for the placement of the first diluent inlet port  196 , the second diluent inlet port  197  and the beverage product inlet port  189 , and the resultant direction of the respective fluid flows through the valve body  179   d ; providing operating clearance for the reciprocating elements of the flow control valve  180 ; avoiding obstruction by the upper seal  259 ; and considering the general constraints on all valve ports formed through the side walls of the valve body  179   d , the beverage product outlet port  186  is located through the side wall of the valve body  179   d  at the midsection of the upper chamber  185  of the valve body  179   d , which location is identified as horizontal plane P 22 , and the diluent outlet port  191  is formed through the side wall of the valve body  179   d  at the lower portion of the intermediate chamber  187 , which location is identified as horizontal plane P 24 . 
     In summary, the constraints placed on the locations about valve body  179   d  for placement of the valve ports formed through the side walls of the valve body  179   d  are, in particular, that: (1) the beverage product inlet port  189  must be vertically located at horizontal plane P 21 ; (2) the beverage product outlet port  186  must be vertically located at horizontal plane P 22 ; (3) the first diluent inlet port  196  and the second diluent inlet port  197  must (a) each be vertically located at horizontal plane P 23 , and (b) be radially separated one from another by a fixed angle compatible with other elements of the implemented diluent selection valve  181   d ; and (4) the diluent outlet port  191  must be vertically located at horizontal plane P 24 . Additionally, the constraints placed on the locations about valve body  179   d  for placement of the valve ports formed through the side walls of the valve body  179   d  include, in general, that all of the foregoing valve ports must be formed through the side walls of the valve body  179   d  at locations about valve body  179   d  that, for each particular valve port, enables routing any interfacing fluid conduit away from the valve body  179   d , while maintaining also the fluid conduit substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 . 
     To be clear these constraints are as derived from Applicant&#39;s consideration and balancing of the relative advantages or disadvantages of various design choices, as pertain particularly to Applicant&#39;s preferred implementation of the other components of the novel piping system  158  of the second embodiment of the present invention. Consideration of the other components of the novel piping system  158 , in reaching the constraints set forth, include consideration of the diluent selection valve  181   d  and the flow control valve  180   d  as each are integrated with the valve body  179   d  in formation of the innovative valve unit  177   d  as all are realized according to Applicant&#39;s preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention. Additionally, however, and as will better understood in light of discussions to follow of relevant considerations, other factors such as, for example, mass, dimensions of user-interfacing components, material of construction and the like also at least influence the identified constraints. 
     It is noted that each of the foregoing vertical constraints—a constraint confining a valve port to a location about a particular horizontal, or transverse, plane through the valve body  179   d — derives, to at least some extent, from the need to operatively align with “inlet” and “outlet” portions of the implemented diluent selection valve  181   d  and flow control valve  180   d , and some vertical constraints are more tolerant to variance than others. For example and as will be better understood further herein, the constraint of the location of the beverage product outlet port  186  to horizontal plane P 22  and the constraint of the location of the diluent outlet port  191  to horizontal plane P 24  derive from a common need to breach the valve body  179   d  at a location within the corresponding valve chamber that is clear of any reciprocating components of the valve trim, and may have greater tolerances than do other constraints. On the other hand, the constraint of the location of the beverage product inlet port  189  to horizontal plane P 21  and the constraint of the locations of the first diluent inlet port  196  and the second diluent inlet port  197  to horizontal plane P 23  derive from a common need to breach the valve body  179   d  at a location within the corresponding valve chamber that is in alignment with or adjacent to a valve gate and/or a poppet disk, and may have only moderate tolerances as compared to other constraints. Still further, the constraint of the locations of the first diluent inlet port  196  and the second diluent inlet port  197  to any otherwise suitable set of locations that are radially separated one from another by a fixed angle derives from a need for operable compatibility with other components themselves constrained by necessary or desired optimizations and the like, and may require implementation within very limited tolerances as compared to other constraints. 
     It is clear that some variance in implementation may be had as a simple matter of tolerances. Additionally, however, it is noted that much greater variation from the configuration depicted for the exemplary valve body  179   d  may be implemented with no change in the to be described valve trim of the valve unit  177   d  or several features external to the valve unit  177   d  that will be understood further herein to directly interface with the valve unit  177   d , and nonetheless fully within each of the foregoing constraints established by Applicant for the exemplary preferred implementation of the hand-held beverage dispenser  150  according to the second embodiment of the present invention. To be sure, subject only to the general requirement for containment of all fluid conduits to substantially within the extents of the handle body  151 , beverage product inlet port  189  may be located at any radial position about the valve body  179   d  that is within horizontal plane P 21 , beverage product outlet port  186  may be located at any radial position about the valve body  179   d  that is within horizontal plane P 22 , and diluent outlet port  191  may be located at any radial position about the valve body  179   d  that is within horizontal plane P 24 . In fact, the radial locations for each should be established in aid of meeting the general requirement. 
     These fully constraint compliant modifications, as described above, are not only advantageous in meeting the general routing requirement for fluid conduits to or from valve body  179   d , they may in fact be critical to meeting the general routing requirement for all of the valve bodies  179   a - 179   j . As has repeatedly been noted, and will be repeated again in the discussion of the relevant considerations for optimizing an implementation of the hand-held beverage dispenser  150  of the present invention, the available space substantially within the extents of an otherwise optimized handle body  151  will necessarily be very limited. With that, it is noted that it may be very advantageous to implement each of the various valve bodies  179   a - 179   j  with a corresponding beverage product inlet port  189 , a corresponding beverage product outlet port  186 , and a corresponding and diluent outlet port  191  that are positioned for the particular one of the valve bodies  179   a - 179   j  as is collectively optimal for meeting the general containment requirement each of the fluid conduits interfacing with all of the valve bodies  179   a - 179   j . Although this variance is from one valve body to another, it is noted that with additive manufacturing or the like, the variations as now described may be had at no additional manufacturing or maintenance cost. To be sure, these variations are widely implemented in the first preferred implementation of the hand-held beverage dispenser  10  of the present invention, as particularly shown, for example, in  FIGS.  9 - 15   . 
     Additionally, the first diluent inlet port  196  and the second diluent inlet port  197  may be located at any set of radial positions about the valve body  179   d  that is within horizontal plane P 22  and for which the positions are separated one from another as required for compatibility with the elements of the implemented diluent selection valve  181   d , as previously discussed, with corresponding rotation about axis  206  of any affected features external to the valve unit  177   d . As previously noted, the affected external features will be understood further herein to include those features that directly interface with the valve unit  177   d . Although this variation requires some adjustment to ancillary components of the hand-held beverage dispenser  150  of the present invention, such as, for example, aspects of the present invention directed toward facilitating configuration or reconfiguration of diluent selections, it does not require modification of any valve trim, as described further herein, of the valve unit  177   d.    
     As described above, variation especially in the radial positions of the various valve ports formed through the side walls of the valve body  179   d , may be critical to meeting the general contained routing requirement for all of the fluid conduits interfacing with each of the valve bodies  179   a - 179   j . Although variation on a valve body-to-valve body basis of the set of radial positions about each one of the valve bodies  179   a - 179   j  for placement of its corresponding first diluent inlet port  196  and second diluent inlet port  197  will generally require conforming at least some ancillary components to the individual radial orientation of each of the valve bodies  179   a - 179   j , as will be better understood further herein, it is noted that any cost may be compensated by achieving a more optimized hand-held beverage dispenser  150 . Additionally, however, and as will in light of this exemplary description be appreciated by those of ordinary skill in the relevant arts, to the extent that such ancillary components are single body or otherwise unitary components, any single one of which interfaces with all of the valve units  170   a - 170   j , it is possible that the variations as now described, like those previously described, may be had at no additional manufacturing or maintenance cost. Also similar to the previously described variations, it is noted that these variations are to at least some extent implemented in the first preferred implementation of the hand-held beverage dispenser  10  of the present invention, as particularly shown, for example, in  FIGS.  9 - 15   . 
     Finally, it is at least possible to implement at least the broad teachings of the present inventions including variations between a plurality of valve unit groups or, in the most extreme, on a valve unit-by-valve unit basis. As is made very clear through this exemplary detailed description, however, such extreme variation is not necessary to achieving an operable hand-held beverage dispenser  150  according to the second embodiment of the present invention, or for that matter any embodiment of the present invention. Notwithstanding the disfavor of such variations, however, all such variations are considered within at least the broad scope of the present invention. 
     As previously described, a number of fluid conduits generally provide fluid communication into and out of each valve body  179   a - 179   j , as shown in  FIGS.  77 - 87    and now described in further detail with respect to the exemplary preferred implementation of the representative valve body  179   d . As particularly shown in  FIGS.  78 B and  79 - 87   , and like the previously described first embodiment, in the second embodiment of the hand-held beverage dispenser  150  a dedicated beverage product supply conduit  169   d  is provided between beverage product inlet  162   d  and the beverage product inlet port  189  of corresponding valve body  179   d  for conveying a supplied beverage product from beverage product inlet  162   d  to valve body  179   d . As also shown in the figures, a dedicated beverage product dispensing conduit  173   d  is provided between the beverage product outlet port  186  of valve body  179   d  and corresponding beverage product outlet  176   d , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   d  from valve body  179   d  and to beverage product outlet  176   d , the selective conveyance being effected by operation of flow control valve  180   d , as will be understood further herein. 
     As particularly shown in  FIGS.  77  and  78 A- 78 D , and like the previously described first embodiment, the second embodiment of the hand-held beverage dispenser  150  comprises a set of manifolds for efficiently providing fluid communication of diluents into and out of each valve body  179   a - 179   j . As schematically shown in the figures, a first diluent inlet manifold  163  comprises a common trunk  164  between the first diluent inlet  160  and a plurality of valve supply branches  165   a - 165   j , each valve supply branch  165   a - 165   j  corresponding to one of the valve bodies  179   a - 179   j . Similarly, a provided second diluent inlet manifold  166  comprises a common trunk  167  between the second diluent inlet  161  and a plurality of valve supply branches  168   a - 168   j , each valve supply branch  168   a - 168   j  corresponding to one of the valve bodies  179   a - 179   j . Finally, a common diluents outlet manifold  170  comprises a common trunk  171  between a plurality of valve dispense branches  172   a - 172   j , each valve dispense branch  172   a - 172   j  corresponding to one of the valve bodies  179   a - 179   j , and the single, common diluents outlet  175 . 
     Returning then to  FIGS.  77 - 87   , the exemplary preferred implementation of the representative valve body  179   d  of the second embodiment of the hand-held beverage dispenser  150  is, among other aspects of the present invention, particularly depicted along with the various fluid conduits of the piping system  158  interfacing or otherwise in fluid communication with the valve body  179   d . In the most preferred implementation of the piping system  158  of the second embodiment of the hand-held beverage dispenser  150 , like the previously described piping system  22  of the first embodiment of the hand-held beverage dispenser  10 , valve supply branch  165   d  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   d , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   d . Similarly, valve supply branch  168   d  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   d , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   d . Additionally, valve dispense branch  172   d  is provided between the diluent outlet port  191  of corresponding valve body  179   d  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   d  or the diluent supplied through second diluent inlet port  197  of valve body  179   d  from valve body  179   d  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   d  to common diluents outlet  175  is determined by the state of diluent selection valve  181   d , as will be better understood further herein. The selective conveyance of the selected diluent from valve body  179   d  to common diluents outlet  175 , on the other hand, is effected by operation of flow control valve  180   d , as also will be better understood further herein. 
     Like the previously described first embodiment, the teachings of the present invention as set forth with reference to the representative valve body  179   d  of the second preferred implementation of the hand-held beverage dispenser  150  of the present invention are generally extensible to each of the valve bodies  179   a - 179   c  and  179   e - 179   j , with slight variance in valve bodies  179   i - 179   j , as noted further herein. That said, and with reference now again to  FIGS.  77 - 87    and the foregoing detailed discussion of valve body  179   d , details of the fluid conduits of the novel piping system  158  of the second embodiment of the present invention are set forth with respect to valve bodies  179   a - 179   c  and  179   e - 179   j , thereby further ensuring clarity in the discussions to follow. 
     A dedicated beverage product supply conduit  169   a  is provided between beverage product inlet  162   a  and the beverage product inlet port  189  of corresponding valve body  179   a  for conveying a supplied beverage product from beverage product inlet  162   a  to valve body  179   a . A dedicated beverage product dispensing conduit  173   a  is provided between the beverage product outlet port  186  of valve body  179   a  and corresponding beverage product outlet  176   a , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   a  from valve body  179   a  and to beverage product outlet  176   a , the selective conveyance being effected by operation of flow control valve  180   a . A valve supply branch  165   a  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   a , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   a , and a valve supply branch  168   a  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   a , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   a . A valve dispense branch  172   a  is provided between the diluent outlet port  191  of corresponding valve body  179   a  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   a  or the diluent supplied through second diluent inlet port  197  of valve body  179   a  from valve body  179   a  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   a  to common diluents outlet  175  is determined by the state of diluent selection valve  181   a . The selective conveyance of the selected diluent from valve body  179   a  to common diluents outlet  175  is effected by operation of flow control valve  180   a.    
     A dedicated beverage product supply conduit  169   b  is provided between beverage product inlet  162   b  and the beverage product inlet port  189  of corresponding valve body  179   b  for conveying a supplied beverage product from beverage product inlet  162   b  to valve body  179   b . A dedicated beverage product dispensing conduit  173   b  is provided between the beverage product outlet port  186  of valve body  179   b  and corresponding beverage product outlet  176   b , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   b  from valve body  179   b  and to beverage product outlet  176   b , the selective conveyance being effected by operation of flow control valve  180   b . A valve supply branch  165   b  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   b , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   b , and a valve supply branch  168   b  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   b , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   b . A valve dispense branch  172   b  is provided between the diluent outlet port  191  of corresponding valve body  179   b  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   b  or the diluent supplied through second diluent inlet port  197  of valve body  179   b  from valve body  179   b  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   b  to common diluents outlet  175  is determined by the state of diluent selection valve  181   b . The selective conveyance of the selected diluent from valve body  179   b  to common diluents outlet  175  is effected by operation of flow control valve  180   b.    
     A dedicated beverage product supply conduit  169   c  is provided between beverage product inlet  162   c  and the beverage product inlet port  189  of corresponding valve body  179   c  for conveying a supplied beverage product from beverage product inlet  162   c  to valve body  179   c . A dedicated beverage product dispensing conduit  173   c  is provided between the beverage product outlet port  186  of valve body  179   c  and corresponding beverage product outlet  176   c , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   c  from valve body  179   c  and to beverage product outlet  176   c , the selective conveyance being effected by operation of flow control valve  180   c . A valve supply branch  165   c  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   c , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   c , and a valve supply branch  168   c  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   c , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   c . A valve dispense branch  172   c  is provided between the diluent outlet port  191  of corresponding valve body  179   c  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   c  or the diluent supplied through second diluent inlet port  197  of valve body  179   c  from valve body  179   c  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   c  to common diluents outlet  175  is determined by the state of diluent selection valve  181   c . The selective conveyance of the selected diluent from valve body  179   c  to common diluents outlet  175  is effected by operation of flow control valve  180   c.    
     A dedicated beverage product supply conduit  169   e  is provided between beverage product inlet  162   e  and the beverage product inlet port  189  of corresponding valve body  179   e  for conveying a supplied beverage product from beverage product inlet  162   e  to valve body  179   e . A dedicated beverage product dispensing conduit  173   e  is provided between the beverage product outlet port  186  of valve body  179   e  and corresponding beverage product outlet  176   e , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   e  from valve body  179   e  and to beverage product outlet  176   e , the selective conveyance being effected by operation of flow control valve  180   e . A valve supply branch  165   e  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   e , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   e , and a valve supply branch  168   e  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   e , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   e . A valve dispense branch  172   e  is provided between the diluent outlet port  191  of corresponding valve body  179   e  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   e  or the diluent supplied through second diluent inlet port  197  of valve body  179   e  from valve body  179   e  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   e  to common diluents outlet  175  is determined by the state of diluent selection valve  181   e . The selective conveyance of the selected diluent from valve body  179   e  to common diluents outlet  175  is effected by operation of flow control valve  180   e.    
     A dedicated beverage product supply conduit  169   f  is provided between beverage product inlet  162   f  and the beverage product inlet port  189  of corresponding valve body  179   f  for conveying a supplied beverage product from beverage product inlet  162   f  to valve body  179   f . A dedicated beverage product dispensing conduit  173   f  is provided between the beverage product outlet port  186  of valve body  179   f  and corresponding beverage product outlet  176   f , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   f  from valve body  179   f  and to beverage product outlet  176   f , the selective conveyance being effected by operation of flow control valve  180   f . A valve supply branch  165   f  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   f , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   f , and a valve supply branch  168   f  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   f , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   f . A valve dispense branch  172   f  is provided between the diluent outlet port  191  of corresponding valve body  179   f  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   f  or the diluent supplied through second diluent inlet port  197  of valve body  179   f  from valve body  179   f  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   f  to common diluents outlet  175  is determined by the state of diluent selection valve  181   f . The selective conveyance of the selected diluent from valve body  179   f  to common diluents outlet  175  is effected by operation of flow control valve  180   f.    
     A dedicated beverage product supply conduit  169   g  is provided between beverage product inlet  162   g  and the beverage product inlet port  189  of corresponding valve body  179   g  for conveying a supplied beverage product from beverage product inlet  162   g  to valve body  179   g . A dedicated beverage product dispensing conduit  173   g  is provided between the beverage product outlet port  186  of valve body  179   g  and corresponding beverage product outlet  176   g , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   g  from valve body  179   g  and to beverage product outlet  176   g , the selective conveyance being effected by operation of flow control valve  180   g . A valve supply branch  165   g  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   g , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   g , and a valve supply branch  168   g  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   g , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   g . A valve dispense branch  172   g  is provided between the diluent outlet port  191  of corresponding valve body  179   g  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   g  or the diluent supplied through second diluent inlet port  197  of valve body  179   g  from valve body  179   g  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   g  to common diluents outlet  175  is determined by the state of diluent selection valve  181   g . The selective conveyance of the selected diluent from valve body  179   g  to common diluents outlet  175  is effected by operation of flow control valve  180   g.    
     A dedicated beverage product supply conduit  169   h  is provided between beverage product inlet  162   h  and the beverage product inlet port  189  of corresponding valve body  179   h  for conveying a supplied beverage product from beverage product inlet  162   h  to valve body  179   h . A dedicated beverage product dispensing conduit  173   h  is provided between the beverage product outlet port  186  of valve body  179   h  and corresponding beverage product outlet  176   h , for selectively conveying the beverage product supplied through beverage product inlet port  189  of valve body  179   h  from valve body  179   h  and to beverage product outlet  176   h , the selective conveyance being effected by operation of flow control valve  180   h . A valve supply branch  165   h  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   h , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   h , and a valve supply branch  168   h  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   h , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   h . A valve dispense branch  172   h  is provided between the diluent outlet port  191  of corresponding valve body  179   h  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   h  or the diluent supplied through second diluent inlet port  197  of valve body  179   h  from valve body  179   h  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   h  to common diluents outlet  175  is determined by the state of diluent selection valve  181   h . The selective conveyance of the selected diluent from valve body  179   h  to common diluents outlet  175  is effected by operation of flow control valve  180   h.    
     As previously noted, the most preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention includes a pair of ON-OFF flow controls  153   i - 153   j , each dedicated to dispensing a diluent only. As also previously noted, the most preferred implementations of the present invention contemplate that the provision of either the first diluent only or the second diluent only is also end-user selectable. In order to meet these demands, the novel piping system  158  of the second embodiment of the present invention omits the beverage product supply conduits and beverage product dispensing conduits, as otherwise would run to or from the corresponding adjunct valve units  177   i - 177   j , and each corresponding valve body  179   i - 179   j  is formed or otherwise provided sans a beverage product inlet port  189  or a beverage product outlet port  186 . On the other hand, the valve bodies  179   i - 179   j  are formed or otherwise provided with internal structures identical to those of valve bodies  179   a - 179   h , thereby requiring no additional or different valve components for implementation of the desired features. 
     That said, a valve supply branch  165   i  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   i , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   i , and a valve supply branch  168   i  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   i , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   i . A valve dispense branch  172   i  is provided between the diluent outlet port  191  of corresponding valve body  179   i  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   i  or the diluent supplied through second diluent inlet port  197  of valve body  179   i  from valve body  179   i  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   i  to common diluents outlet  175  is determined by the state of diluent selection valve  181   i . The selective conveyance of the selected diluent from valve body  179   i  to common diluents outlet  175  is effected by operation of flow control valve  180   i.    
     Likewise, a valve supply branch  165   j  is provided between common trunk  164  and the first diluent inlet port  196  of corresponding valve body  179   j , for conveying a diluent supplied through first diluent inlet  160  to common trunk  164  from common trunk  164  to valve body  179   j , and a valve supply branch  168   j  is provided between common trunk  167  and the second diluent inlet port  197  of corresponding valve body  179   j , for conveying a diluent supplied through second diluent inlet  161  to common trunk  167  from common trunk  167  to valve body  179   j . A valve dispense branch  172   j  is provided between the diluent outlet port  191  of corresponding valve body  179   j  and common trunk  171 , for selectively conveying a separately selected one of either the diluent supplied through first diluent inlet port  196  of valve body  179   j  or the diluent supplied through second diluent inlet port  197  of valve body  179   j  from valve body  179   j  and to common diluents outlet  175 . The selection of one or the other of the diluent supplied through first diluent inlet port  196  or the diluent supplied through second diluent inlet port  197  for selective conveyance from valve body  179   j  to common diluents outlet  175  is determined by the state of diluent selection valve  181   j . The selective conveyance of the selected diluent from valve body  179   j  to common diluents outlet  175  is effected by operation of flow control valve  180   j.    
     Turning now to the material and manner of construction of the skeleton of the handle body  151 , including the various fluid conduits of the novel piping system  158  of the second embodiment of the present invention, as well as the valve bodies  179   a - 179   j  which also together form a part of the novel piping system  158 , in addition to the framework of the handle-body  151 , it is noted that the material and manner of construction are informed by a number of potentially competing constraints. In particular, these potentially competing constraints include at least those deriving from: (1) the necessary location and minimum necessary fluid flow capacity of each valve port; (2) the necessary location and minimum necessary fluid flow capacity of each fluid conduit; (3) the ergonomically acceptable shape and maximum acceptable dimensions of the hand-held beverage dispenser; and (4) the maximum acceptable mass of the hand-held beverage dispenser, as previously described or will be understood further herein. More particularly, in this exemplary or any other implementation of hand-held beverage dispenser  150  according to the present invention, the concerns of the following discussions must be taken into account. 
     As previously discussed, the beverage product inlet port  189  and the beverage product outlet port  186  must be vertically arranged about each of valve bodies  179   a - 179   h  as required for operation of flow control valves  180   a - 180   h , and similarly the first diluent inlet port  196 , the second diluent inlet port  197  and the diluent outlet port  191  must be vertically arranged about each of valve bodies  179   a - 179   j  as required for operation of flow control valves  180   a - 180   j . Additionally, the vertical arrangement of the first diluent inlet port  196  and the second diluent inlet port  197  about each of valve bodies  179   a - 179   j  must comport with requirements for operation of diluent selection valves  181   a - 181   j . Still further, first diluent inlet port  196  and second diluent inlet port  197  must also be radially separated one from the other about valve bodies  179   a - 179   j  as required for operation of diluent selection valves  181   a - 181   j . The restriction on the radial placement for the first diluent inlet port  196  and the second diluent inlet port  197 , in particular, but to lesser effect on the radial placement of each of the other valve ports of the valve bodies  179   a - 179   j , however, is further exacerbated by the requirement to locate substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150  each fluid conduit interfacing with any valve port of valve bodies  179   a - 179   j . The required placement of each valve port of valve bodies  179   a - 179   j  is also limited to the ability within other restrictions to implement or otherwise provide each valve port with at least the minimum necessary fluid flow capacity to support proper operation of the implemented post-mix type drink dispenser assembly  104 , and most preferably also at a flow capacity for meeting performance expectations such as, for example, dispense rate from the hand-held beverage dispenser  150 . 
     Each of the foregoing concerns for fluid flow capacity, as well as the requirement for implementing the novel piping system  158  of the second embodiment of the present invention substantially within the extents of the handle body  151  of the hand-held beverage dispenser  150 , apply with the same or similar force to all other fluid conduits in any flow path between the fluid inlets  159  provided at the rear end  157  of the handle-body  151  and the fluid outlets  174  provided at the forward end  156  of the bottom  154  of the handle body  151 . That said, it is noted that the constraints as applied to the valve ports compete with the constraints as applied to the fluid conduits, at least to the extent that accommodation by the valve ports of the flow control valves  180   a - 180   j  and the diluent selection valves  181   a - 181   j  and the constraint of each of the many fluid conduits, each having a hard minimum fluid flow capacity requirement, to being routed within the limited extents of the handle body  151  of the hand-held beverage dispenser  150 . Additionally, however, attaining these requirements is further exacerbated by the need to produce a commercially acceptable product. In particular, the need to produce the handle body  151  of the hand-held beverage dispenser  150  with an ergonomically acceptable shape within the maximum dimensions acceptable and meeting at least minimum requirements for acceptable comfort in hand and ease of use of the hand-held beverage dispenser  150 , and likewise to produce a hand-held beverage dispenser  150  within an acceptable total mass for acceptable comfort in hand and ease of use of the hand-held beverage dispenser  150 , necessarily limit the extents of the handle body  151 . In total, the foregoing concerns increase the importance of selecting a suitable material and manner of construction for at least the handle body  151  of the hand-held beverage dispenser  150  and the components of the novel piping system  158  made unitary or closely integral with the handle body  151 . 
     Although other shapes or implementations are possible, each beverage product supply conduit  169   a - 169   h  of the exemplary second preferred implementation of the hand-held beverage dispenser  150  of the present invention comprises an elongate tubular, or other suitably shaped, member routed, substantially within the extents of the handle body  151 , between one of the beverage product inlets  162   a - 162   h  and the beverage product inlet port  189  of a corresponding one of the valve bodies  179   a - 179   h ; each beverage product dispensing conduit  173   a - 173   h  of the exemplary preferred implementation comprises an elongate tubular, or other suitably shaped, member routed, substantially within the extents of the handle body  151 , between the beverage product outlet port  186  of one of the valve bodies  179   a - 179   h  and its corresponding one of the beverage product outlets  176   a - 176   h ; the first common trunk  164  and its corresponding valve supply branches  165   a - 165   j  of the exemplary preferred implementation of the first diluent inlet manifold  163  comprise an arrangement of generally elongate tubular, or other suitably shaped, members routed, substantially within the extents of the handle body  151 , between the first diluent inlet  160 , and, for each valve supply branch  165   a - 165   j , the first diluent inlet port  196  of a corresponding valve body  179   a - 179   j ; the second common trunk  167  and its corresponding valve supply branches  168   a - 168   j  of the exemplary preferred implementation of the second diluent inlet manifold  166  comprise an arrangement of generally elongate tubular, or other suitably shaped, members routed, substantially within the extents of the handle body  151 , between the second diluent inlet  161  and, for each valve supply branch  168   a - 168   j , the second diluent inlet port  197  of a corresponding valve body  179   a - 179   j ; and the common trunk  171  and its corresponding valve dispense branches  172   a - 172   j  of the exemplary preferred implementation of the common diluents outlet manifold  170  comprise an arrangement of generally elongate tubular, or other suitably shaped, members routed, substantially within the extents of the handle body  151 , between the diluent outlet port  191  of each valve body  179   a - 179   j , through a corresponding valve dispense branch  172   a - 172   j , and to the common diluents outlet  175 . 
     Although other methods of manufacturing are possible in accordance with the teachings of the present invention, the complex structure of the most preferred implementation of the hand-held beverage dispenser  150  of the present invention is created using additive manufacturing. More specifically, it is particularly advantageous to 3-D print the valve bodies  179   a - 179   j , and all of the fluid conduits of the piping system  158 , unitary with all of the fixed components of the handle body  151 . As exemplified in  FIGS.  9 - 15    corresponding to the first preferred implementation of the hand-held beverage dispenser  10  of the present invention, the elongate tubular, or other suitably shaped, members as placed within the limited extents of the handle body  151  of the exemplary second preferred implementation of the hand-held beverage dispenser  150  of the present invention will occupy much of the available space. As a result, it is desirable, to the extent possible, to eliminate from the construction any support structure not otherwise necessary to the operation of the hand-held beverage dispenser  150 . Although support structures such as the internal mesh  21  provided in the first preferred implementation of the hand-held beverage dispenser  10  may readily be included using additive manufacturing, Applicant has found that utilization of a suitable material of construction generally reduces the need for any such support structure. 
     Most preferably, the foregoing components are printed in stainless steel, which, as opposed to the utilization of many other possible materials of manufacture, such as, for example, plastics or resins, eliminates many concerns regarding the use of a potentially hazardous material, and also readily provides the structural strength to eliminate any need otherwise for support structures, while also enabling manufacture within suitable mass requirements. Additionally, the use of stainless steel facilitates routine cleaning, and also results in a durable product notwithstanding the challenging environment in which the hand-held beverage dispenser  150  will be used. In the most preferred manufactures, however, the interstices  309 , voids and other like spaces substantially within the extents of the handle body  151  and about the valve bodies  179   a - 179   j  and provided fluid conduits are filled with a food safe antifungal foam or like filler, thereby not only simplifying cleaning of the hand-held beverage dispenser  150 , but also providing additional, but lightweight, stabilization for the valve bodies  179   a - 179   j  and fluid conduits, which may reduce the probability of damage in use of the hand-held beverage dispenser  150 . 
     Additional optimizations, however, are possible beyond the described careful choices of materials for the handle body  151 , valve bodies  179   a - 179   j  and fluid conduits of the piping system  158  of the hand-held beverage dispenser  150 ; thoughtful routing of the fluid conduits substantially within the extents of the handle body  151 , as may also be aided by additive manufacturing techniques and the like; and inventive arrangement within the valve bodies  179   a - 179   j  of the additional components implementing the valve units  177   a - 177   j . For example, as shown in  FIGS.  79 - 87    for the exemplary valve body  179   d , the first diluent inlet port  196 , the second diluent inlet port  197  and the diluent outlet port  191  of each of the valve bodies  179   a - 179   j , as well as each corresponding interfacing fluid conduit, are all implemented in the shape of a horizontally oriented obround. In this manner, the corresponding fluid conduits may, without loss of fluid flow capacity, be placed within a smaller vertical span than would be possible utilizing typically implemented round shapes. 
     Referring now to  FIGS.  88 - 89   , the handle body  151  of the hand-held beverage dispenser  150 , as implemented for the most preferred implementation of the second embodiment of the hand-held beverage dispenser  150  of the present invention, is generally shown in its “stripped down” state, as previously shown in  FIGS.  72 - 76    and described in detail with reference to  FIGS.  72 - 76   . Whereas the handle body  151  is shown in  FIGS.  72 - 76    completely devoid of other components of the beverage dispenser  150  of the present invention, the views of  FIGS.  88 - 89    show the handle body  151  with the complete valve trim of valve unit  177   d  received within the single exemplary representative valve body  179   d  in a state that will further herein be understood is an early stage of assembly about the handle body  151  of the handheld beverage dispenser  150 . Additionally and as will also be better understood further herein, the depicted early stage of assembly includes population of each of the valve bodies  179   a - 179   j  with an upper seal  259  for use in connection with the flow control valves  180   a - 180   j  of the respective valve units  177   a - 177   j . Although not further discussed here, an upper seal  259  of the present invention is shown in detail in, and likewise described in detail with reference to,  FIGS.  97 - 100   , and placement of the upper seals  259  as shown in  FIGS.  88 - 89    is shown in detail in, and likewise described in detail with reference to,  FIGS.  101 - 104   . Other than the presence of these features, however, the handle body  151  is as shown and described with respect to  FIGS.  72 - 76   . Likewise, representative valve body  179   d  is presented in  FIGS.  88 - 89    as has been particularly shown in  FIGS.  79 - 87   , and described in great detail with reference to  FIGS.  79 - 87    and others. 
     As previously noted, and particularly shown in the cross-sectional elevational view of  FIG.  89   , the valve body  179   d  is depicted in  FIGS.  88 - 89    with the complete valve trim of valve unit  177   d  received therein. Assembly and placement of the valve trim for valve unit  177   d  is shown in detail in, and likewise described in detail with reference to,  FIGS.  105 - 112   . Of present note, however, the valve unit  177   d  is shown to comprise a diluent selection valve  181   d  and a flow control valve  180   d . The previously mentioned open topped cup  207 , as also previously noted to be a key component of the diluent selection valve  181   d , is shown toward the bottom  154  of the handle body  151 . The open topped cup  207  of the present invention is shown in detail in, and likewise described in detail with reference to,  FIGS.  90 - 93   . As will be understood further herein, the open topped cup  207  is cooperatively adapted with the valve body  179   d  to implement the diluent selection valve  181   d  as a novel cylindrically formed gate valve. As will also be understood further herein, the open topped cup  207  is further cooperatively adapted with the valve body  179   d  and the valve trim assembly  227 , discussion of which immediately follows, to act as a portion of the valve body in implementation of the flow control valve  180   d , thereby inventively enabling implementation of the multi-valve valve unit  177   d  of the present invention in a physical volume far less than that which would otherwise be required. The briefly mentioned valve trim assembly  227 , as will further herein be understood to be a key component of the flow control valve  180   d , is shown as generally running from top  152  to bottom  154  of the handle body  151 , and as partially received within an interior space  213  of the open topped cup  207 . The valve trim assembly  227  is shown in detail in, and likewise described in detail with reference to,  FIGS.  94 - 96   . 
     Referring now to  FIGS.  90 - 93   , the preferred implementation of a novel open topped cup  207 , which, as will be better understood further herein, is cooperatively adapted with the specially formed valve body  179   d , as has herein been described in detail, to form the diluent selection valve  181   d  of the inventive valve unit  177   d  for the hand-held beverage dispenser  150  of the present invention, is now shown and described in detail. As shown in the figures, the open topped cup  207  generally comprises a cylindrical sidewall  208  having a cylindrical exterior surface  209  and a cylindrical interior surface  210 , and projecting upwardly from a closed bottom  221  of the cup  207  to form an interior space  213  as defined in large part by the cylindrical interior surface  210 . As suggested by those parts of the prior detailed description of the exemplary valve body  179   d , many, if not most, of the features of the open topped cup  207  must be provided to specification in order to cooperate with the valve body  179   d  as intended for implementation of the diluent selection valve  181   d . Additionally, however, as has been noted but will nonetheless be better understood further herein, the open topped cup  207  is further cooperatively adapted with both the exemplary valve body  179   d  and the valve trim assembly of the flow control valve  180   d  to form the flow control valve  180   d  of the inventive valve unit  177   d  for the hand-held beverage dispenser  150  of the present invention. The requirement of the specially formed cup  207  to simultaneously operate as components of very different valve structures, as will be appreciated further herein, only reiterates that the features of the open topped cup  207  must be provided to specification. 
     As noted in the prior detailed description of the exemplary valve body  179   d , the open topped cup  207  is received through the circular open end  199  at the bottom  198  of the exemplary valve body  179   d , and retained in place substantially within lower chamber  192  of the exemplary valve body  179   d . As also noted in the prior detailed description of the exemplary valve body  179   d , the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207  abuts a shoulder  194  formed at the top of the lower chamber  192 . Because, as will be better understood further herein, the open topped cup  207  is a least partially rotatable as retained in place, the shoulder  194  is formed at the top of the lower chamber  192  as a planar surface. As a result, the upper edge  211  of the cylindrical side wall  208  is also most preferably planar. 
     As also set forth in the prior detailed description of the exemplary valve body  179   d , the dimensions for the shoulder  194  are specified in terms of the dimensions of various aspects of the open topped cup  207 . In reality, the exemplary valve body  179   d  and the open topped cup  207  are cooperatively formed within the specified bounds as set forth in the prior detailed description, taking into account the relative importance of one feature or another to implementation of one or another cooperating component. For example, it may be considered that the exemplary valve body  179   d  must be formed with a largely predetermined overall height, the interior surfaces must be stepped, the exemplary valve body  179   d  must be of sufficient volume to maintain acceptable fluid flow rates therethrough, valve trim in addition to that required for the diluent selection valve  181   d  must be accommodated, and the like. Similarly, it may be considered that the open topped cup  207  must accommodate components in addition to those which are required in implementation of the diluent selection valve  181   d , the cylindrical side wall  208  of the open topped cup  207  must be of structurally sound thickness, and the like. All of these considerations, however, will with the aid of this exemplary detailed description and the guidance presented herein, be readily within the ordinary skill in the relevant arts. 
     In any case, the cylindrical exterior surface  209  and the cylindrical interior surface  210  are formed according within the specifications set forth in the prior detailed description of the exemplary valve body  179   d . In meeting the specifications, however, it is noted that a circumferential groove  220  is provided about the lower exterior portion  216  of the open topped cup  207 . As will be better understood herein, the this circumferential groove  220  is sized, shaped and otherwise adapted to operably retain a lower seal  225 , such as an O-ring, for the diluent selector valve  181   d . As will be described further herein, it is in fact the open topped cup  207  with the lower seal  225  in place within the circumferential groove  220  about the lower exterior portion  216  of the open topped cup  207 . As a result, there will necessarily be some gap between the cylindrical exterior surface  209  of the open topped cup  207  and the cylindrical interior wall  193  of the lower chamber  192  of the exemplary valve body  179   d , and which must at least be accounted for within the guidelines specified in the prior detailed description of the exemplary valve body  179   d  for the relative dimensions of the open topped cup  207  and the exemplary valve body  179   d.    
     Finally, one last provision is specifically made in the open topped cup  207  in implementation of the flow control valve  180   d . As particularly shown in  FIG.  93   , a cylindrical receptacle  215  is centrally formed in the bottom  214  of the interior space  213  of the open topped cup  207 . As will be fully understood further herein, the cylindrical receptacle  215  is sized and otherwise adapted to conformingly receive the fixed end of a poppet spring  273 , such as is well known in the relevant arts, for operation of the flow control valve  180   d . In addition to conforming to the exterior circumference of the poppet spring  273 , the cylindrical receptacle  215  should be of sufficient depth to stably fix the received end of the poppet spring, and maintain at least the received end of the poppet spring about the central axis  206  of the valve body  179   d.    
     Turning then to those remaining features of the open topped cup  207  as are specifically provided in implementation of the diluent selection valve  181   d , and referring particularly to  FIGS.  90 ,  91  and  93   , there is shown a notch  212  as formed or otherwise provided at the upper edge  211  and about a portion of the cylindrical sidewall  208  of the open topped cup  207 . As will be better understood further herein, the notch  212  cooperates with the larger intact portion of the upper edge  211  of the sidewall  208  of the open topped cup  207  to form a cylindrical gate for the implemented diluent selection valve  181   d , and, in particular, for alternately allowing or blocking fluid flow though one or the other of the first diluent inlet port  196  and the second diluent inlet port  197 . As best shown in  FIGS.  85 - 87   , each of the first diluent inlet port  196  and the second diluent inlet port  197  are formed or otherwise provided through the side wall of the exemplary valve body  179   d  at the uppermost portion of the lower chamber  192  and as near as otherwise practicable to the lower valve seat  195 , which location is identified as horizontal plane P 23 . As shown in the figures, the specified location places each of the first diluent inlet port  196  and the second diluent inlet port  197  just slightly below the shoulder  194  against which the upper edge  211  of the cylindrical side wall abuts, as the open topped cup  207  is operably received in place within the lower chamber  192  of the exemplary valve body  179   d.    
     As previously noted, the open topped cup  207  is at least partially rotatable about central axis  206  when operably in place within the lower chamber  192  of the exemplary valve body  179   d . In particular, the open topped cup  207  must be sufficiently rotatable as to selectively align the notch  212  in the upper edge  211  of the sidewall  208  of the open topped cup  207  with either one of the first diluent inlet port  196  and the second diluent inlet port  197  formed through the side wall of the exemplary valve body  179   d . To this end, it is observed that the notch  212  in the upper edge  211  of the sidewall  208  of the open topped cup  207  is formed horizontally along the upper edge  211 , and is specifically formed to fully encompass either of the first diluent inlet port  196  and the second diluent inlet port  197 , but also to sufficiently conform about the either of the first diluent inlet port  196  and the second diluent inlet port  197  as to ensure that as flow from one of first diluent inlet port  196  and the second diluent inlet port  197  is allowed to pass through the aligned notch  212 , flow through the other one of the first diluent inlet port  196  and the second diluent inlet port  197  is blocked by an intact portion of the sidewall  208  of the open topped cup  207 , and vice versa. 
     While, as previously noted, the open topped cup  207  must be sufficiently rotatable as to selectively align the notch  212  with either one of the first diluent inlet port  196  and the second diluent inlet port  197 , Applicant has found it desirable to limit the rotation of the open topped cup  207  to only that which is necessary in operation of the diluent selection valve  191   d . As will be better understood further herein, this limitation also contributes to the previously mentioned most preferably implemented poka-yoke mechanism for the hand-held beverage dispenser  150  of the present invention, as will be better understood further herein. To this end, it is noted that the most preferred implementation of the exemplary valve body  179   d  comprises a notch  201  formed in the circular open end  199  at the bottom  198  of the valve body  179   d , as particularly shown in  FIGS.  79 - 80 ,  83 - 84  and  86 - 87   , and provided expressly to be used in connection the stop tab  217  provided or otherwise formed at the lower exterior portion  216  of the open topped cup  207 , as best shown in  FIGS.  90  and  92   . As best shown in  FIG.  92   , the stop tab  217  comprises a first edge  218  and a second edge  219 , as shown in  FIGS.  90  and  92   . 
     As clearly shown in  FIGS.  90  and  92   , the stop tab  217  extends radially outward beyond the cylindrical exterior surface  209  of the cylindrical side wall  208  of the open topped cup  207  and therefore cannot be received within the lower chamber  192  of the exemplary valve body  179   d . Instead, however, the stop tab  217  is sized, shaped and otherwise adapted to move freely substantially within the extents of the notch  201  previously described as being formed in the circular open end  199  of the exemplary valve body  179   d . In particular, the operably in place open topped cup  207  may rotate counterclockwise about the central axis  206  until the first edge  218  of the stop tab  217  of the open topped cup  207  makes blocking contact with the edge  203  of the first stop  202  at the bottom  198  of the exemplary valve body  179   d . Likewise, the operably in place open topped cup  207  may rotate clockwise about the central axis  206  until the second edge  219  of the stop tab  217  of the open topped cup  207  makes blocking contact with the edge  205  of the second stop  204  at the bottom  198  of the exemplary valve body  179   d.    
     In order to ensure that the contact between the first edge  218  of the stop tab  217  of the open topped cup  207  and the edge  203  of the first stop  202  at the bottom  198  of the exemplary valve body  179   d  is predictable and results in rotation of open topped cup  207  by the calculated or otherwise determined desired angle of rotation, the first edge  218  of the stop tab  217  of the open topped cup  207  is formed to lie in a vertical plane R 1  intersecting the central axis of the open topped cup  207 , as shown in  FIG.  92   , and therefore the central axis  206 , ensuring that the first edge  218  of the stop tab  217  of the open topped cup  207  will meet face to face with the edge  203  of the first stop  202  at the bottom  198  of the exemplary valve body  179   d . Likewise, in order to ensure that the contact between the second edge  219  of the stop tab  217  of the open topped cup  207  and the edge  205  of the second stop  204  at the bottom  198  of the exemplary valve body  179   d  is predictable and results in the desired rotation of open topped cup  207 , the second edge  219  of the stop tab  217  of the open topped cup  207  is formed to lie in a vertical plane R 2  intersecting the central axis of the open topped cup  207 , as shown in  FIG.  92   , and therefore the central axis  206 , ensuring that the second edge  219  of the stop tab  217  of the open topped cup  207  will meet face to face with the edge  205  of the second stop  204  at the bottom  198  of the exemplary valve body  179   d.    
     As previously noted, establishment of the congruent central angle of the diluent inlet ports  196 ,  197  has a ripple effect constraining, or even largely defining, the implementation of many aspects of the present invention. As implemented, it is clear that the angle of rotation of the open topped cup  207  that is necessary for operation of the diluent selection valve  191   d  is equal to the congruent central angle of the diluent inlet ports  196 ,  197 . In order to achieve the full desired rotation, the congruent central angle of the stop tab  217  must be taken into account. Taking the congruent central angle of the stop tab  217 , the desired rotation of the open topped cup  207  is achieved by establishing the congruent central angle of the notch  210  as equal to the sum of the congruent central angle of the diluent inlet ports  196 ,  197  and the congruent central angle of the stop tab  217 . 
     Finally, and as will be better understood further herein, operation of the diluent selection valve  181   d  in use of the hand held beverage dispenser of the present invention requires manual rotation of the open topped cup  207  while it is installed in place with the exemplary valve body  179   d . In order to facilitate this task, a blind slot  223  or like provision is formed on the bottom side  222  of the closed bottom  221  of the open topped cup  207  for engagement with a flathead screwdriver or a like implement, as best shown in  FIGS.  90 - 92   . In order to further facilitate operation of the diluent selection valve  181   d , however,  FIG.  92    shows that indicia of alignment  224  may be formed in, printed on, or otherwise applied to the bottom side  222  of the closed bottom  221  of the open topped cup  207 . As the exemplary implementation now shown and described, an indicium  224  in the form of an arrowhead is applied to the bottom side  222  of the closed bottom  221  of the open topped cup  207 , and as will be better understood further herein, is used to point to one of a set of indicia provided at a location at or about the bottom  198  of the exemplary valve body  179   d , and which indicia are adapted to distinguish the first diluent from the second diluent. 
     Referring now to  FIGS.  94 - 96   , the preferred implementation of a novel valve trim assembly  227 , which, as will be better understood further herein, is cooperatively adapted with the specially formed valve body  179   d , as has herein been described in detail, as well as with the previously described open topped cup  207 , to form the flow control valve  180   d  of the inventive valve unit  177   d  for the hand-held beverage dispenser  150  of the present invention, is now shown and described in detail. As will be better understood further herein, the valve trim assembly  227  is fashioned to operate within an internal space formed by a cooperative arrangement between the previously described exemplary valve body  179   d  and the also previously described open topped cup  207 . In particular, the upper portion of the internal space is broadly formed by the upper chamber  185  and the cylindrical interior wall  188  of the intermediate chamber  187  of the exemplary valve body  179   d , and the lower portion of the internal space is broadly formed by the cylindrical interior surface  210  of the cylindrical side wall  208  and the bottom  214  of the interior space  213  defined by the cylindrical interior surface  210  of the open topped cup  207 . As will be better understood in the discussions to follow, the novel and inventive utilization of space formed for implementation of a first type of valve in implementing a wholly different type of valve enables Applicant to not only provide on demand diluent selection, but also allows Applicant provide at least as many beverage selections as do many other bar guns lacking the novel on demand diluent selection of the hand-held beverage dispenser  150  of the present invention. 
     In any case and as shown in the figures, the preferred implementation of the valve trim assembly  227  for use in the flow control valve  180   d  of the valve unit  177   d  of the hand-held beverage dispenser  150 , generally comprises a most preferably cylindrical valve rod  228  having disposed thereon a first, upper reciprocating sealing member  243  and a second, lower reciprocating sealing member  252 . As will be better understood further herein, each of the first, upper reciprocating sealing member  243  and a second, lower reciprocating sealing member  252  implement a poppet-type valve, and the first, upper reciprocating sealing member  243  additionally implements a specially formed wiper seal. As particular shown in  FIG.  96   , the midsection  232  of the valve rod  228  includes a most preferably unitary first retainer  234  for dependently supporting the upper reciprocating sealing member  243 . Importantly, the unitary first retainer  234  also provides precise positioning along the valve rod  228  for the upper reciprocating sealing member  243 . As also particularly shown in  FIG.  96   , the first retainer  234  comprises a first, upper annular disk  235  and a second, lower annular disk  236 . As will be better understood further herein the first, upper annular disk  235  provides positioning and structure for the valve face  248  of the upper reciprocating sealing member  243 , while the second, lower annular disk  236  provides structure and stability for the upper reciprocating sealing member  243 . 
     As also particularly shown in  FIG.  96   , the lower portion  237  of the valve rod  228  includes a most preferably unitary second retainer  238  for dependently supporting the lower reciprocating sealing member  252 . Importantly, the unitary second retainer  238  also provides precise positioning along the valve rod  228  for the lower reciprocating sealing member  252 . As also particularly shown in  FIG.  96   , the second retainer  238  comprises a first, upper annular disk  239  and a second, lower annular disk  240 . As will be better understood further herein the first, upper annular disk  239  provides positioning and structure for the valve face  257  of the lower reciprocating sealing member  252 , while the second, lower annular disk  240  provides structure and stability for the lower reciprocating sealing member  252 . 
     Referring now to each of  FIGS.  94 - 96   , the first, upper reciprocating sealing member  243  is described in detail, as cooperatively adapted for operation against the upper valve seat  190  provided about the transition between the upper chamber  185  of the valve body  179   d  and the intermediate chamber  187  of the valve body  179   d  for the flow control valve  180   d . As shown in the figures, the first, upper reciprocating sealing member  243  comprises an annular body  244  of a first configuration in the general form of a spool, and which is most preferably provided as a unitary element comprising rubber or like material. In any case, the upper reciprocating sealing member  243  is preferably formed as an over-mold to the valve rod  228  between the first, upper annular disk  235  and the second, lower annular disk  236  of the first retainer  234 , thereby not only simplifying manufacture of the valve trim assembly  227  but also obviating issues of leakage along the valve rod  228 . As also shown in the figures, the annular body  244  of the first configuration comprises an upper rim  245  and a lower rim  249 , the upper rim  245  and lower rim  249  being separated by a preferably deeply curved barrel  251 , the provision of which avoids excess friction between the first, upper reciprocating sealing member  243  and the cylindrical interior wall  188  of the intermediate chamber  187  of the exemplary valve body  179   d.    
     The upper rim  245  of the annular body  244  of the first configuration comprises a cylindrical outer edge  246 , which loosely conforms to the cylindrical interior wall  188  of the intermediate chamber  187  of the exemplary valve body  179   d  to provide stability and centering about the central axis  206  for the upper reciprocating sealing member  243 . Additionally, a downwardly angled top surface  247  is formed on the upper rim  245  to implement the poppet-type valve face  248  of the upper reciprocating sealing member  243 . As will be appreciated by those of ordinary skill in the relevant arts, however, the top surface  247  may be downwardly sloping as depicted, or may take any other profile operatively sized, shaped and otherwise adapted to produce a valve face  248  adapted to precisely mate in sealing engagement with the previously described upper valve seat  190  provided about the transition between the upper chamber  185  of the valve body  179   d  and the intermediate chamber  187  of the valve body  179   d  in the exemplary implementation of the flow control valve  180   d.    
     The lower rim  249  of the annular body  244  of the first configuration is sized, shaped and otherwise cooperatively adapted with the cylindrical interior wall  188  of the intermediate chamber  187  of the exemplary valve body  179   d  to operate as a customized reciprocating wiper seal to segregate, and provide fluid isolation between the interior space of the exemplary valve body  179   d  above the lower rim  249  and the interior space of the exemplary valve body  179   d  below the lower rim  249 , as the valve trim assembly  227  reciprocates up and down within the exemplary valve body  179   d . To this end, the outer edge  250  about the lower rim  249  is formed to closely conform to the cylindrical interior wall  188  of the intermediate chamber  187  of the exemplary valve body  179   d.    
     Referring still to  FIGS.  94 - 96   , the second, lower reciprocating sealing member  252  is described in detail, as cooperatively adapted for operation against the lower valve seat  195  provided about the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d  for the flow control valve  180   d . As shown in the figures, the second, lower reciprocating sealing member  252  comprises an annular body  253  of a second configuration in the general form of a plug, and which is most preferably provided as a unitary element comprising rubber or like material. In any case, the lower reciprocating sealing member  252  is preferably formed as an over-mold to the valve rod  228  between the first, upper annular disk  239  and the second, lower annular disk  240  of the second retainer  238 , thereby not only simplifying manufacture of the valve trim assembly  227  but also obviating issues of leakage along the valve rod  228 . As also shown in the figures, the annular body  253  of the second configuration comprises a circumferential shoulder  254  about the top end of the annular body  253  of the second configuration, and is formed atop a low profile base  258 , the provision of which avoids excess friction between the second, lower reciprocating sealing member  252  and the cylindrical interior surface  210  of the cylindrical side wall  208  of the open topped cup  207 , as operably received within the lower chamber  192  of the exemplary valve body  179   d.    
     The circumferential shoulder  254  of the annular body  253  of the second configuration comprises a cylindrical outer edge  255 , which loosely conforms to the cylindrical interior surface  210  of the cylindrical side wall  208  of the open topped cup  207 , as implemented in the diluent selection valve  181   d , to provide stability and centering about the central axis  206  for the lower reciprocating sealing member  252 . Additionally, a downwardly angled top surface  256  is formed on the circumferential shoulder  254  to implement the poppet-type valve face  257  of the lower reciprocating sealing member  252 . As will be appreciated by those of ordinary skill in the relevant arts, the downwardly sloping top surface  256  must be sized, shaped and otherwise adapted to produce a valve face  257  adapted to precisely mate with the lower valve seat  195  provided about the transition between the intermediate chamber  187  of the valve body  179   d  and the lower chamber  192  of the valve body  179   d  for the flow control valve  180   d.    
     In an important aspect of the cooperative integration of the valve trim assembly  227  and the open topped cup  207 , the bottom end  241  of the valve rod  228  is particularly shown in  FIGS.  95 - 96    to comprise a protuberance  242  extending downwardly extending the valve rod  228  beyond the second, lower annular disk  240  of the second retainer  338 . On the other hand, it is recalled that a cylindrical receptacle  215  is centrally formed in the bottom  214  of the interior space  213  of the open topped cup  207  of the diluent selection valve  181   d . Additionally, the detailed description of the open topped cup  207  notes that the provided cylindrical receptacle  215  is sized and otherwise adapted to conformingly receive the fixed end of a poppet spring  273  for operation of the flow control valve  180   d . The protuberance  242  is adapted to receive thereabout the reciprocating end of the poppet spring  273 , and thus should be sized and otherwise adapted to conformingly engage the interior portion of the poppet spring  242 . 
     Finally, the upper portion  229  of the valve rod  228  is shown in  FIGS.  94 - 96    to be substantially narrowed relative to the rest of the valve rod  228 . The narrowed upper portion  229  of the valve rod  228  is adapted to readily pass through the flow control valve actuator orifice  183  shown at the top  182  of the exemplary valve body  179   d , as has herein been described in detail, including through an upper seal  259 , as provided for the exemplary flow control valve  180   d . As shown in  FIGS.  97 - 100   , the seal  259  is adapted to fit conformingly and sealingly within the flow control valve actuator orifice  183 , and thereafter to sealingly receive the narrowed portion  229  of the valve rod  228  through a provided central orifice  262 , and making the uppermost portion of the valve rod  228  available for use as an actuator for the flow control valve  180   d . To this end, a keeper groove  231  is circumferentially formed about the top end  230  of the valve rod  228 . As will be detailed further herein, the keeper groove  231  is utilized in cooperation with various button caps to securely but removably retain the button caps in place at the top end  230  of the valve rod  228 . 
     Referring now to  FIGS.  97 - 100   , various details of the upper seal  259  for the exemplary flow control valve  180   d  of the present invention are shown and described. In the preferred implementation of the flow control valve  180   d  of the present invention, the upper seal  259  is formed as a grommet-shaped plug  260  comprising rubber or like material. The plug  260  is provided with a circumferential shoulder  261  about the top, which, as will be better understood further herein, may in use rest upon the top  182  of the exemplary valve body  179   d  about the flow control valve actuator orifice  183 . As previously mentioned, the plug  260  comprises a central orifice  262  running top to bottom through the plug  260 , and which is sized, shaped and otherwise adapted to sealingly engage the outer surface of upper portion  229  of the generally cylindrical valve rod  288 . As particularly shown in  FIGS.  97 ,  98  and  100   , the bottom edge of the central orifice  262  is preferably chamfered or otherwise relieved, in order to prevent loss of integrity or other damage to the upper seal  259  as the valve unit  177   d  is being assembled, and the top edge of the central orifice  262  may also be chamfered or otherwise relieved as shown in the figures and may be desired. Finally, the plug  260  has a retention groove  263  formed about the midsection of the plug  260 . As will be appreciated by those of ordinary skill in the relevant arts, the retention groove  263  should be sized, shaped and otherwise adapted to engage the annulus  184  formed within the flow control valve actuator orifice  183  of the exemplary valve body  179   d , and which is provided for this purpose. 
     Turning now to  FIGS.  101 - 104   , assembly of the hand-held beverage dispenser  150  according to the second preferred embodiment of the present invention begins with insertion of an upper seal  259  for the flow control valve  180   d  into the flow control valve actuator orifice  183  of the exemplary valve body  179   d . Upon application of gentle top down force, such as by a thumb press, the upper seal  259  of the flow control valve  180   d  will readily take the correct position within the flow control valve actuator orifice  183  of the exemplary valve body  179   d , with the retention groove  263  fully engaged by the annulus  184  formed within the flow control valve actuator orifice  183 , and the circumferential shoulder  261  resting securely at the top  182  of the exemplary valve body, as shown in  FIGS.  102 - 103   . This process, as described for operably placing the upper seal substantially within the exemplary valve body  179   d , is then repeated for insertion of an upper seal  259  into the flow control valve actuator orifice  183  at the top  182  of each remaining valve body  179   a - 179   c  and  179   e - 179   j  of the handle body  151 , which is shown in  FIG.  104    in the completed state. 
     In the next stage of assembly, each of the valve bodies  179   a - 179   j  is fully populated with its corresponding valve trim. In accordance with the preferred implementation of the hand-held beverage dispenser  150  of the second embodiment of the present invention, the valve trim as cooperatively adapted with a corresponding one of the valve bodies  179   a - 179   j  to form each valve unit  177   a - 177   j , is shown in  FIGS.  105 - 106    to comprise an open topped cup  207 ; a valve trim assembly  227  for the flow control valve  180   d ; a lower seal  225  for the diluent selection valve  181   d , such as may comprise an O-ring  226  or the like; and a poppet spring  273 . These individual valve trim components assemble within a corresponding one of the valve bodies  179   a - 179   j  to form a compactly integrated valve trim arrangement  308 , as illustrated in isolation in  FIGS.  107 - 108   . As will be better understood further herein, each valve body  179   a - 179   j  is cooperatively fitted with a valve trim arrangement  308 , although as has been noted and will also be better understood further herein some functionality may, if purposefully desired, be limited with respect to one or more of the valve units  177   a - 177   j.    
     In any case, the implementation for any fully functional one of the valve units  177   a - 177   j  is now described with reference to the representative exemplary valve unit  177   d . As will be better understood further herein, valve body  179   d  is cooperatively fitted with a valve trim arrangement  308  to form corresponding valve unit  177   d , which comprises a corresponding dual flow control valve  180   d  and an independently operated corresponding diluent selection valve  181   d . The dual flow control valve  180   d  implements single simultaneous flow control for two isolated flow paths through the valve unit  177   d , while the independently operated diluent selection valve  181   d  implements a 3 way/2 position valve adapted to selectively place one of two isolated flow paths into the valve unit  177   d  in fluid communication within the valve unit  177   d  with one of the two isolated flow paths through the valve unit  177   d  controlled by the flow control valve  180   d . Importantly, the flow control valve  180   d  and the diluent selection valve  181   d , as well as all fluid flow paths therebetween, are substantially implemented within the compact space of the valve body  179   d.    
     As previously noted, assembly of the valve units  177   a - 177   j  of the hand-held beverage dispenser  150  of the second embodiment begins with placement of the upper seals  259  of the flow control valves  180   a - 180   j . As particularly illustrated in  FIG.  101    with respect to the representative exemplary valve unit  177   d , the upper seal  259  for the flow control valve  180   d  is inserted into the valve body  179   d  through the flow control valve actuator orifice  183  located at the top  182  of the valve body  179   d . As particularly illustrated in  FIG.  109   , however, the individual valve trim components of the previously described valve trim arrangement  308  are all introduced into the valve body  179   d  through the circular open end  199  located at the bottom  198  of the valve body  179   d . Although other processes may be determined in light of the teachings of this exemplary disclosure, in the preferred method of the present invention assembly of the valve units  177   a - 177   j , as again described with reference to the representative exemplary valve unit  177   d , continues with insertion of the valve trim assembly  227  for the flow control valve  180   d  through the circular open end  199  of the valve body  179   d  and substantially into the chambers of the valve body  179   d.    
     If not preassembled, the O-ring  226 , or a like valve seal  225 , is then operatively placed within the circumferential groove  220  about the lower exterior portion  216  of the open topped cup  207  as provided for receiving lower seal  225  for the diluent selection valve  181   d . In any case, with the O-ring  226 , or other equivalent seal  225 , properly seated within the circumferential groove  220 , the poppet spring  273  is lowered into the interior space  213  of the open topped cup  207 , and the bottom end of the poppet spring  273  is inserted into the cylindrical receptacle  215  formed in the bottom  214  of the interior space  213  of the open topped cup. At this stage of assembly, the open topped cup  207 , with the lower seal  225  for the diluent selection valve  181   d  properly seated within circumferential groove  220  and the poppet spring  273  positioned within the cylindrical receptacle  215 , the subassembly about the open topped cup  207  is then also inserted through the circular open end  199  of the valve body  179   d  and into the lower chamber  192  of the valve body  179   d , where the free end of the poppet spring  273  will engage about the protuberance  242  at the bottom end  241  of the valve trim assembly  227 . With the complete valve trim arrangement  308  preliminarily inserted through the circular open end  199  of the valve body  179   d  and substantially received therein, sufficient force is applied to the bottom side  222  of the closed bottom  221  of the open topped cup  207  to work the valve trim arrangement  308  through the chambers of the valve body  179   d  until the top end  230  of the valve rod  228  of the valve trim assembly  227  passes through the previously placed upper seal  259  for the flow control valve  181   d  and protrudes from the flow control valve actuator orifice  183 , as shown in  FIG.  111   , and the bottom side  222  of the closed bottom  221  of the open topped cup  207  is substantially seated within the lower chamber  192  of the valve body  179   d , as shown in  FIG.  110   . This process, as described for initially placing the previously described valve trim arrangement  308  substantially within the exemplary valve body  179   d , is then repeated for placement of a valve trim arrangement  308  through the circular open end  199  at the bottom  198  of each remaining valve body  179   a - 179   c  and  179   e - 179   j  of the handle body  151 , working each valve trim arrangement  308  through the respective interior chambers of each valve body  179   a - 179   b  and  179   e - 179   j  until all are initially seated in place, as shown in  FIG.  112   . 
     Before continuing the description of the assembly process for the valve units  177   a - 177   j , it is emphasized that is very important to not tear or otherwise damage the lower seal  225  while operatively placing the valve seal  225 , whether placing the valve seal  225  within the circumferential groove  220  about the lower exterior portion  216  of the open topped cup  207  or inserting the open topped cup  207 , with an affixed valve seal  225 , through the circular open end  199  into the valve body  179   d . To be sure, it should be well noted that any injury to the integrity of the valve seal  225  could result in leakage of beverage fluids from the valve unit  177   d , potentially rendering the hand-held beverage dispenser  150  temporarily unfit for use pending replacement of the injured valve seal  225 . That said, assembly, use and maintenance of the hand-held beverage dispenser  151  of the present invention are generally all very easy, and accordingly the lower seal  225  is with due care readily properly placed within the circumferential groove  220 . For example, to place the depicted exemplary O-ring  226  from below the open topped cup  207 , the aperture of the O-ring  226  is placed over and about the stop tab  217  projecting from the lower exterior portion  216  of the open topped cup  207 , allowing the O-ring  226  to safely engage the adjacent portion of the circumferential groove  220 . The distal portion of the O-ring  226  is then simply stretched about the closed bottom  221  of the open topped cup  207  to fully engage the circumferential groove  220 . Alternatively, the O-ring  226  may be carefully placed over and about the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207 , and then urged downward to seat the O-ring  226  within the circumferential groove  220 . In any case, to mitigate the risk of damage during the assembly process preassembly of the O-ring  226 , or a like valve seal  225 , with the open topped cup  207  is recommended in order to provide a measure of additional focus for the task. 
     Continuing then with the assembly process for the valve units  177   a - 177   j , it is again noted that each valve trim arrangement  308 , as depicted in  FIG.  112   , is only initially placed. At this juncture much of each valve trim arrangement  308  is merely resting in place, and the full valve trim arrangement  308  for each valve unit  177   a - 177   j  must be secured operatively in place within its respective valve body  179   a - 179   j . This is accomplished using a purpose built valve trim retaining member  274 , as particularly shown in  FIGS.  113 - 115   . As will be better understood further herein, the novel purpose built valve trim retaining member  274  as implemented the second embodiment of the present invention not only retains in place each valve trim arrangement  308 , but is also adapted, with other components of the hand-held beverage dispenser  151 , as have been or will be described, to cooperatively implement the previously mentioned poka-yoke mechanism for delivering fundamental functionality of the each diluent selection valve  181   a - 181   j.    
     Referring then to  FIGS.  113 - 114    in particular, a specially formed novel valve trim retaining member  274  is now shown to generally comprise a rigid plate  275  having various unitary, machined, milled, drilled or otherwise provided or formed holes, slots and notches for interoperability with the handle body  151 , valve units  177   a - 177   j  and a bottom cover  287 , as will be described further herein, of the handle body  151 . The specially formed novel valve trim retaining member  274  functions primarily to securely retain the valve trim for each valve unit  177   a - 177   j  in place substantially within each corresponding valve body  179   a - 179   j , while nonetheless permitting sufficient rotation of the open topped cup  207  retained within each corresponding valve body  179   a - 179   j —that is, to operate the diluent selection valve  179   a - 179   j  retained within each valve body  179   a - 179   j —to enable user selection of either the first diluent or the second diluent for each corresponding valve body  179   a - 179   j . Additionally, however, and as will be better understood further herein, the valve trim retaining member  274  also cooperates with a bottom cover  287  of the handle body  151 , as well as features formed unitary with the valve bodies  179   a - 179   j  and the open topped cups  207  of the diluent selection valves  181   a - 181   j , to inventively implement enhanced functionality in operation of the diluent selection valves  181   a - 181   j.    
     In implementation of its primary function of providing operably accessible retention of the valve trim for each the valve unit  177   a - 177   j , the valve trim retaining member  274  first retains the valve trim. As will, in light of this exemplary description, be understood by those of ordinary skill in the relevant arts, the top side  277  of the valve trim retaining member  274  abuts the bottom sides  222  of the closed bottoms  221  of the open topped cups  207  of each diluent selection valve  181   a - 181   j . To retain the valve trim of each valve unit  177   a - 177   j  operably in place within its corresponding valve body  179   a - 179   j , where each abutted open topped cup  207  is fully inserted into the lower chamber of a corresponding valve body  179   a - 179   j  such that the upper edge  211  of the cylindrical side wall  208  of the abutted open topped cup  207  is in contact with the shoulder  194  provided about and at the top of the lower chamber  192  of the corresponding at the valve body  179   a - 179   j  when the valve trim retaining member  274  is operably secured in place, smooth mounting holes  279  are provided through the rigid plate  275  of the valve trim retaining member  274 . As shown in  FIG.  115   , screws  280 , or other conventional mounting hardware as may be suitable, are inserted partially through the provided mounting holes  279  to engage corresponding threaded holes  285  the bottom  154  of the handle body  151 , thereby removably affixing the valve trim retaining member  274  operably in place adjacent the bottom  154  of the handle body  151 , as shown in  FIG.  116   . 
     In further implementation of its primary function of providing operably accessible retention of the valve trim for each the valve unit  177   a - 177   j , the valve trim retaining member  274  also provides operable accessibility to the valve trim, as retained in place as described above. As particularly shown in  FIGS.  113 ,  114  and  116   , the rigid plate  275  of the valve trim retaining member  274  comprises a selection access notch  278  for each implemented valve unit  177   a - 177   j . Each selection access notch  278  is principally provided to enable access by a screwdriver, or like implement, to the blind slot  223 , or like provision, as previously described to be located on the bottom side  222  of the closed bottom  221  of the open topped cups  207  of each diluent selection valves  181   a - 181   j , and which are clearly shown in  FIG.  116    to be operably accessible. 
     Additionally and as previously noted, however, the most preferred implementations of the second embodiment of the hand-held beverage dispenser  150  of the present invention contemplate the provision of various indicia of alignment in aid of a user&#39;s selection of a particular diluent. To this end, the bottom side  222  of the closed bottom  221  of the most preferred implementations of the open topped cup  207  of each diluent selection valve  181   a - 181   j  has been previously described as including an indicium of alignment  224  in the form of an arrowhead. Accordingly, the selection access notches  278  are most preferably sized, shaped or otherwise arranged through and about the valve trim retaining member  274  to provide visual access for utilization of such an indium of alignment  224 , or like indicia, as well as to provide physical access to the blind slots  223 , or like provision, from the bottom side  283  of the valve trim retaining member  274 , as clearly shown in  FIG.  116   . In order to give practical utility to the previously described indicium of alignment  224  as applied to the bottom side  222  of the closed bottom  221  of each open topped cup  207  of the diluent selection valves  181   a - 181   j , however, functionally corresponding indicia of alignment  284  are formed in, printed on or otherwise applied to the bottom side  283  of the valve trim retaining member  274 . In the present exemplary description, the letter W, as, for example, may indicate a diluent comprising plain water, is applied to the bottom side  283  of the valve trim retaining member  274  at one side of each provided selection access notch  278  as a first indicium of alignment  284 , and the letter S, as, for example, may indicate a diluent comprising soda, is applied to the bottom side  283  of the valve trim retaining member  274  at the opposite side of each provided selection access notch  278  as a second indicium of alignment  284 . Of note, the valve trim retaining member  274  is readily removed and replaced to accommodate any desired indicia of alignment  284 . 
     As will at this juncture, and particularly in light of this exemplary description, be understood by those of ordinary skill in the relevant arts, the open topped cups  207  of each diluent selection valve  181   a - 181   j , in the configuration depicted in  FIG.  116   , are free to rotate about the central axis  206  within the lower chamber  192  of the corresponding valve body  179   a - 179   j , limited only by the stop tab  217  of the rotating open topped cup  207  being restricted to travel along the arc about the circular open end  199  at the bottom  198  of the corresponding valve body  179   a - 179   j  between the edge  203  of the first stop  202  and the edge  205  of the second stop  204  of the corresponding valve body  179   a - 179   j , as reduced by the width of the stop tab  217 . Referring now to the specific implementation of the herein described exemplary diluent selection valve  181   d , it is noted that as depicted in  FIGS.  90  and  92   , in particular, the stop tab  217  provided at the lower exterior portion  216  of the open topped cup  207 , the arrowhead implementing the indicium of alignment  224  applied to the bottom side  222  of the closed bottom  221  of the open topped cup  207 , and the horizontally oriented notch  212  formed at the upper edge  211  and about a portion of the cylindrical sidewall  208  of the open topped cup  207  are all three aligned with a common radial line from the central axis  206 . Although other implementations may be had, the following discussion will, for purposes of visualization, assume the particular arrangement of the exemplary implementation. 
     Referring now to  FIG.  116   , and with reference to  FIG.  112    and to  FIGS.  79 - 87  and  93 - 93    as needed, the operably implemented valve unit  177   d  is shown with the first edge  218  of the stop tab  217  projecting from the lower exterior portion  216  of the open topped cup  207  of diluent selection valve  179   d  positioned adjacent to the edge  203  of the first stop  202  formed by the notch  201  in the circular open end  199  at the bottom  198  of the valve body  179   d . As will, in light of this exemplary description, be understood by those of ordinary skill in the relevant arts, the foregoing alignment within the exemplary valve body  179   d  places the horizontally oriented notch  212  in the cylindrical sidewall  208  of the open topped cup  207  of the diluent selection valve  181   d  in line with the first diluent inlet port  196  formed through the side wall of the valve body  179   d , and may be referred to as a first operable state of the diluent selection valve  181   d . As particularly shown in  FIG.  116   , the foregoing alignment within the exemplary valve body  179   d  also causes the arrowhead forming the indicium of alignment  224  on the bottom side  222  of the closed bottom  221  of the open topped cup  207  to align with the letter W forming an indicium of alignment on the bottom side  283  of the valve trim retaining member  274 , indicating that in the selected state of the diluent selection valve  191   d , the diluent is plain water. 
     In order to then cause valve unit  177   d  to use soda as the diluent, a flathead screwdriver, or other appropriate implement, is inserted through the selection access notch  278  about the closed bottom  221  of the open topped cup  207  of diluent selection valve  181   d  to engage the blind slot  223  formed on the bottom side  222  of the closed bottom  221 . In the present example and from the viewpoint of  FIG.  116   , the flathead screwdriver, or other appropriate implement, is simply used to rotate the open topped cup  207  in the counterclockwise direction until further rotation is blocked by the second edge  219  of the stop tab  217  projecting from the lower exterior portion  216  of the open topped cup  207  of diluent selection valve  179   d  contacting the edge  205  of the second stop  204  formed by the notch  201  in the circular open end  199  at the bottom  198  of the valve body  179   d . As will, in light of this exemplary description, be understood by those of ordinary skill in the relevant arts, the foregoing alignment within the exemplary valve body  179   d  places the horizontally oriented notch  212  in the cylindrical sidewall  208  of the open topped cup  207  of the diluent selection valve  181   d  in line with the second diluent inlet port  197  formed through the side wall of the valve body  179   d , and may be referred to as a second operable state of the diluent selection valve  181   d . Additionally, the foregoing alignment within the exemplary valve body  179   d  also causes the arrowhead forming the indicium of alignment  224  on the bottom side  222  of the closed bottom  221  of the open topped cup  207  to align with the letter S forming an indicium of alignment on the bottom side  283  of the valve trim retaining member  274 , indicating that in the selected state of the diluent selection valve  191   d , soda is selected for the diluent, as desired. 
     As previously mentioned, the novel purpose built valve trim retaining member  274  is, in addition to the foregoing functionality, adapted with other components of the hand-held beverage dispenser  151  to cooperatively implement the variously mentioned poka-yoke mechanism for delivering fundamental functionality of the each diluent selection valve  181   a - 181   j . In particular, the poka-yoke mechanism implements a failsafe provision to ensure that the horizontally oriented notch  212  of the open topped cup  207  of each implemented diluent selection valve  181   a - 181   j  is, in use of the hand-held beverage dispenser  150 , correctly fully aligned with either the first diluent inlet port  196  or the second diluent inlet port  197  of the corresponding valve body  179   a - 179   j . To that end, the most preferred implementation of the valve trim retaining member  274  is specially adapted to accommodate features of an also specially adapted bottom cover  287  for the handle body  151 . 
     As best shown in  FIGS.  113 - 114   , the valve trim retaining member  274  comprises a plurality of arcuate slots  276  corresponding to at least an equal plurality of locking tabs  291  provided on the interior side  290  of the bottom panel  289  of the bottom cover  287  for the handle body  151 , as will be understood further herein. In particular, an arcuate slot  276  is provided through the rigid plate  275  of the valve trim retaining member for each valve unit  177   a - 177   j  implemented in the hand-held beverage dispenser  151 . Each provided arcuate slot  276  is sized, shaped, located one to another and otherwise adapted to enable passage of a corresponding one of the locking tabs  291  provided on the interior side  290  of the bottom panel  289  of the bottom cover  287 . 
     As will be better understood further herein, each of the locking tabs  291 , which as noted generally dictate the form and position of the arcuate slots  276 , is sized, shaped and positioned according to the form, position and size of the arc about the circular open end  199  at the bottom  198  of the corresponding valve body  179   a - 179   j  between the edge  203  of the first stop  202  and the edge  205  of the second stop  204  of the corresponding valve body  179   a - 179   j , and, additionally, by the size and shape of the stop tab  217  projecting from the lower exterior portion  216  of the open topped cup  207  of the corresponding diluent selection valve  179   a - 179   j . In any case, to facilitate the required close cooperation between the bottom cover  287  for the handle body  151  and the valve trim retaining member  274 , a hardware pass through hole  281  and a hardware clearance notch  282  are formed through the rigid plate  275  of the valve trim retaining member  274 , each of which is sized and positioned to enable free passage through the valve trim retaining member  274  of the attachment hardware  296  for the bottom cover  287  of the handle body  151 . 
     Turning now to  FIGS.  117 - 120   , the previously mentioned specially formed bottom cover  287  for the handle body  151 , as provided in accordance with the preferred implementation of the second embodiment of the hand-held beverage dispenser  151  of the present invention, is shown as a single body manufacture generally comprising a substantially planar bottom panel  289  having an aesthetically pleasing wing  288  upwardly extending symmetrically from each side of the bottom panel  289 . The exterior of the bottom cover  287  may be, and preferably is, provided with features for enhancing user experience with the hand-held beverage dispenser  150 . For example and as particularly shown in  FIG.  120   , the portions of the exterior of the bottom cover  287  may be provided with knurls  297  or other features for facilitating a secure grasp by a user of the handle body  151 , notwithstanding the generally fast-paced, and often wet, environments in which it may be expected that the hand-held beverage dispenser  150  will typically be deployed for use. 
     As best shown in  FIGS.  118 - 119   , the interior side  290  of the bottom panel  289  comprises a plurality of upwardly projecting locking tabs  291 , and, in particular one locking tab  291  corresponding to each valve unit  177   a - 177   j  implementing a diluent selection valve  181   a - 181   j . Each of the provided locking tabs  291  is adapted for insertion through a corresponding one of the previously described arcuate slots  276  provided through the rigid plate  275  of the valve trim retaining member  275 , as previously mentioned, and furthermore into a position operative to selectively disable rotation of the open topped cup  207  of the corresponding diluent selection valve  181   a - 181   j  from the first operable state of the diluent selection valve  181   a - 181   j  to the second operable state of the diluent selection valve  181   a - 181   j , or to any transitional state between the first operable state and the second operable state as would in any way diminish or otherwise interfere with the fluid flow capacity established for the first operable state, and likewise to disable rotation of the open topped cup  207  of the corresponding diluent selection valve  181   a - 181   j  from the second operable state of the diluent selection valve  181   a - 181   j  to the first operable state of the diluent selection valve  181   a - 181   j , or to any transitional state between the second operable state and the first operable state as would in any way diminish or otherwise interfere with the fluid flow capacity established for the for the second operable state. 
     In order to achieve the desired a failsafe condition, each locking tab  291  is sized, shaped and positioned such that when the corresponding diluent selection valve  181   a - 181   j  is in a “correct selection state”—that is, when either the first edge  218  or the second edge  219  of the stop tab  217  of the open topped cup  207  of the corresponding diluent selection valve  181   a - 181   j  is operably adjacent either the first stop  202  or the second stop  204  formed at the ends of the notch  201  formed in the circular open end  199  at the bottom  198  of the corresponding valve body  179   a - 179   j —the locking tab  291  is adapted to pass through a corresponding one of the arcuate slots  276  provided through the valve trim retaining member  274 , and extend sufficiently beyond the valve trim retaining member  274 , to substantially occupy the arc about the corresponding notch  201 . In order to “substantially occupy” the arc about the notch  201 , a portion of the locking tab  291 , as the locking tab  291  is inserted under the forgoing conditions of a correct selection state, must be positioned sufficiently adjacent whichever of the first edge  218  or the second edge  219  of the stop tab  217  of the open topped cup  207  is opposite whichever of the first edge  218  or the second edge  219  of the stop tab  217  is operably adjacent either the first stop  202  or the second stop  204  formed at the ends of the notch  201 . Additionally, however, in order to “substantially occupy” the arc about the notch  201 , a portion of the locking tab  291 , as the locking tab  291  is inserted under any transitional or other condition of the corresponding diluent selection valve  181   a - 181   j  other than one of the two foregoing conditions of a correct selection state, must also sufficiently occupy the intermediate portions of the arc about the notch  201 , as located between those portions of the arc that are occupied by the stop tab  217  when operably adjacent either the first stop  202  or the second stop  204  of the notch  201  in a correct selection state of the corresponding diluent selection valve  181   a - 181   j , such that the locking tab  291  is prevented from fully engaging the notch  201  formed in the circular open end  199  at the bottom  198  of the corresponding valve body  179   a - 179   j , thereby alerting a user to an improperly configured diluent selection valve  181   a - 181   j.    
     As made clear above, the implementation of the upwardly projecting locking tabs  291 , including the relationships one to another, is largely dictated by the implementation of the diluent selection valves  181   a - 181   j  in connection with the corresponding valve bodies  179   a - 179   j , including the required positioning of the first diluent inlet port  196  and the second diluent inlet port  197 . As previously mentioned, and made clearer above, it is the implementation of the upwardly projecting locking tabs  291  that drives the implementation of the arcuate slots  276  through the rigid plate  275  of the valve trim retaining member  274 . On the other hand, several features are implemented in the bottom cover  287  to facilitate the required close cooperation between the bottom cover  287  for the handle body  151  and the valve trim retaining member  274 . 
     As best shown in  FIGS.  118 - 119   , an outwardly oriented low profile gusset  292  is formed at the convex side of each upwardly projecting locking tab  291 . These gussets  292  together form a distributed standoff for the interior side  290  of the bottom panel  289  of the bottom cover  287  from the bottom side  283  of the valve trim retaining member  274 . As distributed, the gussets  292  provide uniform contact surfaces for attachment of the bottom cover  287  to the handle body  151 , while also providing and maintaining such spacing between the interior side  290  of the bottom panel  289  of the bottom cover  287  and the valve trim retaining member  274  as required for accommodating, for example, attachment hardware for the valve trim retaining member  274  such as the heads of screws  280  or the like. In order to minimize the required spacing, however, the interior side  290  of the bottom panel  289  also comprises a pair of hardware recesses  293 , which are sized, shaped and located for additionally accommodating at least a portion of the heads of screws  280  utilized to attach the valve trim retaining member  274  to the bottom  154  of the handle body  151 . 
     On the other hand, the distal ends of a pair of upwardly projecting bosses  294  formed along the interior side  290  of the bottom panel  289  are received one each in the hardware pass through hole  281  and the hardware clearance notch  282  provided through the rigid body  275  of the valve trim retaining member  274 . An elongate mounting hole  295  is provided through the bottom panel  289  of the bottom cover  287  and through each boss  294 , as best shown in  FIGS.  118  and  120   . As also shown in  FIG.  120   , the exterior end of each mounting hole is most preferably countersunk to enable flush insertion of the conventional mounting hardware for the bottom cover  287 , such as, for example, screws  296  or the like, thereby ensuring that a user may comfortably grasp the handle body  151 . As will be appreciated by those of ordinary skill in the relevant arts, provision of the bosses  294  facilitates insertion of the screws  296  or like mounting hardware into threaded holes  286  for removably attaching the bottom cover  287  to the bottom  154  of the handle body  151 , which, as shown in  FIG.  115   , are provided in the bottom  154  or the handle body  151  a distance away from the interior side  290  of the bottom panel  289  of the bottom cover  287 . Additionally, those of ordinary skill in the relevant arts will recognize that for implementations where the bottom cover  287  is formed of a plastics or like material, the provision of the bosses  294  not only prevents cracking or breaking the bottom cover  287 , but perhaps more importantly prevents flexing of the bottom cover  287  as may interfere with the cooperative arrangement between the bottom cover  287 , the valve trim retaining member  274 , the valve bodies  179   a - 179   j , and the diluent selection valves  181   a - 181   j.    
     Referring again to  FIG.  120   , it is noted that the next stage of assembly of the preferred implementation of the hand-held beverage dispenser  151  of the second embodiment—placement of the bottom cover  287 — is necessarily prefaced by first ensuring that the open topped cup  207  of the diluent selection valve  181   a - 181   j  is for each valve unit  177   a - 177   j  correctly positioned in either the first operable state or the second operable state of the corresponding diluent selection valve  181   a - 181   j  so as to have properly selected either the first diluent of the second diluent. On the other hand, as previously discussed, if any one of the diluent selection valves  181   a - 181   j  has an out of place open topped cup  217 , the implemented poka-yoke mechanism will prevent attachment to the handle body  151  of the bottom cover  287 , thereby alerting the assembler to the misconfiguration. More importantly, the same result will obtain if a user of the hand-held beverage dispenser  150  has inadvertently misconfigured one of more diluent selection valves  181   a - 181   j . If, for example, a misconfiguration occurs in the course of changing a diluent selection, accessing an interior space for cleaning or the like, or even satisfying a curiosity during a slow shift at the bar, the user will be alerted to the misconfiguration. 
     In any case, with the diluent selection valves  181   a - 181   j  all correctly configured, the bottom cover  287  of the handle body  151  is positioned in place about the bottom  154  of the handle body  151 , and retained in place with the screws  296 , as shown, for example, in  FIG.  69   . It should at this juncture be appreciated that with preferred implementation of the hand-held beverage dispenser  150  of the second embodiment of the present invention generally assembled to the foregoing stage, as has heretofore been described and is depicted in, for example,  FIGS.  67 - 69   , the implemented poka-yoke mechanism prevents any inadvertent change in the diluent selected for any diluent selection valve  181   a - 181   j . More specifically, in any such hand-held beverage dispenser  150 , in operable condition, the interposition of an upwardly projecting locking tab  291  into the arc of the travel of the stop tab  217  projecting from the lower exterior portion  216  of each open topped cup  207 , as above described in detail, makes it impossible for any diluent selection valve  181   a - 181   j  to be inadvertently changed from its first operable state to its second operable state or any otherwise misconfigured state, or from its second operable state to its first operable state or any otherwise misconfigured state. 
     In order for a user to operate a diluent selection valve  181   a - 181   j —that is, to change a selected diluent selection valve  181   a - 181   j  from its first operable state to its second operable state, or from its second operable state to its first operable state, the user must first disassemble the bottom cover  287  from the bottom  154  of the handle body  151 . As will be appreciated by those of ordinary skill in the relevant arts, this is readily accomplished by conventionally removing the screws  296 , or other provided mounting hardware, and pulling away, as necessary, the bottom cover  287 , as shown in  FIG.  120   . With the relevant components of hand-held beverage dispenser in at least the stage of assembly depicted in  FIG.  116   , the user may then change the selection for any one or more diluent selection valves  181   a - 181   j  as desired, and as previously described with reference to  FIGS.  112  and  116   . In any case, once any desired change is made, and, preferably, a correct configuration for each diluent selection valve  181   a - 181   j  visually or otherwise verified, the user will then reassemble the bottom cover  287  with the bottom  154  of the handle body  151 , as described above. 
     Turning now to  FIGS.  121 - 123   , an exemplary button cap  264  as particularly suitable for attachment to the top end  230  of the cylindrical valve rod  228  of the exemplary flow control valve  180   d , as the valve trim for the valve unit  177   d  is retained operably in place within the valve body  179   d  such that the top end  230  of the valve rod  228  protrudes through the upper seal  259  for the flow control valve  180   d  as retained within the flow control valve actuator orifice  183 , as shown in  FIG.  127   , and whereafter the attached button cap  264  will implement the ON-OFF flow control  153   d  for manual actuation by a user of the flow control valve  180   d . As shown in the figures, the preferred implementations of the button cap  264  feature an overhanging side  265  or, depending on the shape of the button cap  264 , overhanging sides  265 . In any case, the overhanging sides  265  are provided to operate cooperatively with the top  182  of the valve body  179   d  to facilitate achieving a low profile valve control  153   d , and also aids in preventing ingress to the button cap  264  and about the upper seal  259  and the for the flow control valve  180   d  and the top end  230  of the valve rod  228  of beverage fluids or like matter. 
     As particularly shown in  FIGS.  122 - 123   , a snap ring  267  for dependently engaging the top of top end  230  of the valve rod  228  is formed within the interior space  266  of the button cap  264 , as generally bounded by the overhanging sides  265 . As shown in the figures, the implemented snap ring  267  comprises a pair of spaced tabs  268 , each of which comprises a notch in the shape of a minor arc of a circle to cooperatively form a longitudinally oriented central aperture  269  between the tabs  268 , Additionally, each of the tabs  268  has an interiorly projecting foot  270  formed about the bottom edge of the aperture, and sized, shaped and otherwise adapted to engage the keeper groove  231  provided about the top end  230  of the cylindrical valve rod  228 , as previously described and particularly shown in  FIGS.  94 - 96   . Additionally, the implemented button cap  264  comprise a pair of oppositely disposed alignment and retention tabs  271 , as will be understood further herein to cooperate with corresponding tab guide slots  303  formed within the top cover  300  for the handle body  151  for maintaining the button cap  264  on the top end  230  of the valve rod  228  and at the desired rotation about the valve rod  228 , thereby ensuring that any printed matter applied to the top of the button cap  264  is properly viewable. 
     As shown in  FIGS.  124 - 126   , an alternatively shaped button cap  272  is shown to comprise functionally identical structure within the interior space  266  bounded by the alternatively shaped overhanging sides  265 . As shown in the figures, the alternatively shaped button cap  272  identically implements a snap ring  267  within the interior space  266  of the button cap  272 , the snap ring  266  being formed of spaced tabs  268  forming a central aperture  269  with an interiorly projecting foot  270  adapted to engage the keeper groove  231  at the top end  230  of the valve rod  228 . Alignment and retention tabs  271  are also provided about the alternatively shaped overhanging sides  265 , but need not be identically sized or shaped as compared to the first described button cap  264 . 
     As shown in  FIG.  127   , a button cap  164  is attached to the top end  230  of the protruding portion of the valve rod  228  by simply aligning the central aperture  269  with the central axis  206  of the targeted valve body  179   d , and pressing the button cap  164  downward over and about the top end  230  of the valve rod  228 , whereby contact with the top end  230  of the valve rod  228  will cause the spaced tabs  268  to flex slightly upward enabling central aperture  269  to receive the top end  230  of the valve rod  228  as the button cap continues downward until the interiorly projecting foot  270  engages the keeper groove  231  about the top end  230  of the valve rod  228  and the spaced tabs  268  snap back into position, with the button cap  264  initially secured in place. This process is repeated to apply a selected button cap  264  for each remaining flow control valve  180   a - 180   c  and  180   e - 180   h , as shown in  FIG.  130   . As also shown in  FIG.  130   , flow control valves  180   i - 180   j , which as previously described dispense a diluent only, form a subset  299  of flow controls for which it may be desired, as shown, to provide an alternatively shaped button cap  272  in order to more prominently distinguish the subset  299  of flow controls. 
     In any case, a top cover  300  is provided for the handle body  151  of the hand-held beverage dispenser  150  to conventionally enclose the tops  182  of the valve bodies  181   a - 181   j  and the various otherwise exposed elements of the implemented piping system  158 , as best shown in  FIGS.  128 - 130   . Additionally, however, the provided top cover  300  is also specially adapted to operably retain in place each attached button cap  264 ,  272 . In any case and as shown in the figures, the implemented top cover  300  is generally formed as a substantially planar single body manufacture having an aesthetically pleasing wing  306  extending symmetrically downward from each side of the top cover  300 . A pair of downwardly projecting bosses  304  are provided on the bottom side  301  of the top cover  300  to provide the desired spacing between the bottom side  301  of the top cover  300  and the top  152  of the handle body  151 , and to prevent flexing or breakage of the readily removable and replaceable top cover  301  during attachment to the handle body  151 . A mounting hole  305  for the top cover  300  is provided through the top cover  300  into and through each provided boss  304 . As best shown in  FIGS.  130 - 131   , the end of the mounting hole through the top cover  300  in particular is preferably countersunk to enable flush insertion of provided conventional mounting hardware for the top cover  300 , such as, for example, screws  307  or the like, thereby ensuring that a user may comfortably grasp the handle body  151 . 
     As best shown in  FIG.  129   , a button cap guide  302  for each implemented ON-OFF flow control  153   a - 153   j  projects downwardly from the bottom side  301  of the top cover  300 , and is sized and shaped to allow passage of each particular button cap  264 ,  272  for which the particular top cover  300  is manufactured to support. As also best shown in  FIG.  129   , each of the downwardly projecting button cap guides  302  includes a pair of tab guide slots  303 , which are sized, shaped and disposed about each button cap guide  302  to operatively receive the alignment and retention tabs  271  as provided about the particular button cap  264 ,  272  for which the particular button cap guide  302  has been adapted to receive. It should be well noted at this juncture that the button caps  264 ,  272 , in addition to traditional printed matter or coloring, may take any number of shapes, or be provided with any number of surface treatments, such as ridges, bumps, depressions or the like, and/or other visually, tactilely or similarly readily perceptible features, and changing the one button cap for another of a differing shape, or other characteristic, is a simple matter of removing the top cover  300 , removing a first button cover  264  from the valve body  179   a - 179   j  for which the change is desired, affixing a second button cover  272  of the desired shape, and replacing the removed top cover  300  with a different top cover  300  having button cap guides  302  corresponding to the updated button cap configuration. The convenience with which such a change may be made is of particular utility in the connection with the hand-held beverage dispenser  150  as preferably implemented according to the second embodiment of the invention, where the on demand ability to select any available diluent for use with any valve unit  177   a - 177   j  only increases the likelihood that a user would change the beverage product dispensed through a particular valve unit  177   a - 177   h  which then also increases the likelihood that a user would also desire a change in shape of the button cap for a particular valve unit  177   a - 177   h.    
     In any case, with a button cap  264  attached to the top end  230  of each valve rod  228 , as shown in  FIG.  130    to include alternatively shaped button caps  272  for the subset  299  of ON-OFF flow controls  153   i - 153   j  implemented for actuating the flow control valves  180   i - 180   j  of the valve units  177   i - 177   j  configured to dispense a diluent only, the top cover is set in place on the top  152  of the handle body  151 . As shown in  FIG.  131   , button cap guides  302  projecting downwardly from the bottom side  301  of the top cover  300  conformingly receive each button cap  264 ,  272 . Additionally, however, as each button cap  264 ,  272  is received within a corresponding button cap guide  302 , the tab guide slots  303  disposed about the button cap guide  302  also capture the alignment and retention tabs  271  provided on the received button cap  264 ,  272 . The top cover  300  is then conventionally attached to the top  152  by inserting the provided screws  307  through the mounting holes  305  through the top cover  300  and engaging the corresponding provided threaded holes  298  at the top  151  of the handle body  151 , as shown in  FIGS.  127  and  130   . 
     Referring now to  FIGS.  132 A- 132 E,  133 A- 133 E,  134 A- 134 E and  135 A- 135 E , and various other figures as will be identified where they are found to be particularly instructive, the four major exemplary states of operation of the representative valve unit  177   d  are shown and described. In particular the following discussions will describe in detail various flow paths through the valve unit  177   d , fluid flows within or relating to the valve unit  177   d , relationships between the components of the valve unit  177   d  and other components of the piping system  158  specifically and/or the hand-held beverage dispenser  150  or even external components generally, and user interactions with the valve unit  177   d , where discussion of  FIGS.  132 A- 132 E  will describe the valve unit  177   d  as configured to utilize the first diluent while the ON-OFF flow control  153   d  is not actuated; discussion of  FIGS.  133 A- 133 E  will describe the valve unit  177   d  as configured to utilize the first diluent while the ON-OFF flow control  153   d  is actuated; discussion of  134 A- 134 E will describe the valve unit  177   d  as configured to utilize the second diluent while the ON-OFF flow control  153   d  is not actuated; and discussion of  FIGS.  135 A- 135 E  will describe the valve unit  177   d  as configured to utilize the second diluent while the ON-OFF flow control  153   d  is actuated. 
     In a first state of operation of the integrated valve unit  177   d  as depicted in  FIGS.  132 A- 132 E , the diluent selection valve  181   d  is configured to select a first diluent known to a user, which not necessarily known to the user is supplied under pressure to the hand-held beverage dispenser  150  through the first diluent inlet  160  at the rear end  157  of the handle body  151 , for use in dispensing a beverage product associated by the user with ON-OFF flow control  153   d , which also not necessarily known to the user actuates flow control valve  180   d  of valve unit  177   d . As represented in the figures, however, the ON-OFF flow control  153   d  for actuation of flow control valve  180   d  of valve unit  177   d  is not operated. 
     If the desired first diluent is not already selected, the user may make the selection by removing the bottom cover  287  from the handle body  151 , as previously described in detail with reference to  FIG.  120   , to expose the bottom  154  of the handle body  151  and the bottom side  222  of the closed bottom  221  of the open topped cup  207  of the diluent selection valve  181   a - 181   d  of each valve unit  177   a - 177   j , as particularly shown in  FIG.  116    to be accessible for diluent selection through the provided selection access notches  278  in the rigid plate  275  of the valve trim retaining member  274 . As well understood in light of the foregoing detailed disclosures, diluent selection valve  181   d  corresponds to ON-OFF flow control  153   d . The user, however, will generally have little if any knowledge of the internal arrangements of the hand-held beverage dispenser  150 , but will have been instructed that the correct user interface for selection of one diluent or the other is located at the bottom  154  of the handle-body  151 , and directly aligned below and with the ON-OFF flow control  153   d  of interest. The flow control of interest  153   d , however, is similarly likely known to the user only by some identifying indicium or the like corresponding to the beverage product to be dispensed in use of the ON-OFF flow control  153   d  of interest. In any case, the user will utilize the indicium of alignment  224  provided on bottom side  222  of the closed bottom  221  of the open topped cup  207 , as also shown in  FIG.  92   , in conjunction with the particular indicia of alignment  284  on the bottom side of the valve trim retaining member  274 , as also shown in  FIG.  114   , that are adjacent to and about the bottom side  222  of the closed bottom  221  of the open topped cup  207 , to effect the desired selection, as previously described in detail with reference to  FIGS.  112  and  116   . In effecting the desired selection, however, the user will generally identify the desired diluent by indicia of alignment  284  on the bottom side of the valve trim retaining member  274 , such as, for example, the letter W, which for the exemplary implementation indicates plain water, and the letter S, which for the exemplary implementation indicates soda. As depicted in the exemplary representation of  FIG.  116   , plain water is the first diluent and soda is the second diluent, and the figure shows the first diluent, as properly selected. With the desired diluent selected, the user will then replace the bottom cover  287 , as also previously described in detail with reference to  FIG.  120   . 
     In selecting the first diluent for use in dispensing a beverage product with ON-OFF flow control  153   d , the user or other party responsible for configuring the exemplary preferred implementation of the hand-held beverage dispenser  150  according to the second embodiment of the present invention, causes the horizontally oriented notch  212  through the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the first diluent inlet port  196  of the valve body  179   d , as particularly shown in  FIG.  132 B . As shown in  FIGS.  132 B and  132 E , and also previously described, with reference to  FIGS.  112  and  116   , as the first operable state of the diluent selection valve  181   d , this alignment of the horizontally oriented notch  212  with the first diluent inlet port  196  creates an open flow path through the diluent selection valve  181   d  between the supply branch  165   d  for the first diluent and the first diluent inlet port  196  of the valve body  179   d , thereby allowing the first diluent to flow through the diluent selection valve  181   d  for introduction of the first diluent into the lower chamber  192  of the valve body  179   d . Simultaneously, however, selection of the first diluent for use in dispensing a beverage product with ON-OFF flow control  153   d  also causes an intact portion of the side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the second diluent inlet port  197  of the valve body  179   d , as also particularly shown in  FIG.  132 B . As shown in  FIGS.  132 B and  132 E , this alignment of an intact portion of the side wall  208  with the second diluent port  197  creates a flow blocking gate within the diluent selection valve  181   d  between the supply branch  168   d  for the second diluent and the second diluent inlet port  197  of the valve body  179   d , thereby preventing flow of the second diluent through the diluent selection valve  181   d  and introduction of the second diluent into the lower chamber  192  of the valve body  179   d.    
     In the first state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  132 A- 132 E , a beverage product supplied under pressure to the beverage product inlet  162   d  from any suitable flow control assembly in fluid communication with the beverage product inlet  162   d , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the dedicated beverage product supply conduit  169   d  provided, as previously described, between the beverage product inlet  162   d  and the beverage product inlet port  189 , provided as previously described through a side wall of the valve body  179   d , and introduced through the beverage product inlet port  189  to the intermediate chamber  187  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  132 D , the beverage product inlet port  189  introduces the beverage product into the intermediate chamber  187  upstream from the previously described upper valve seat  190  for the flow control valve  180   d , which forms a part of the upper poppet-type valve as implemented for controlling fluid flows of beverage product. 
     Because in the defined first state of operation of the integrated valve unit  177   d  the ON-OFF flow control  153   d  is not operated, the valve rod  228  and the upper reciprocating sealing member  243 , which as previously described is dependently fixed in place about the valve rod  228  of the flow control valve  180   d  actuated by operation of the ON-OFF flow control  153   d , remain at least through the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  in their respective uppermost operable positions, as shown in  FIGS.  132 A and  132 D . As positioned, the valve face  248  formed by a top surface  247  of the upper reciprocating sealing member  243  remains sealingly engaged with the upper valve seat  190  formed at the fixed transition between the cylindrical upper chamber  185  and the intermediate chamber  187  of the valve body  179   d . Although the beverage product will have entered the intermediate chamber  187  of the valve body  179   d , it will be contained in the volume about the upper reciprocating sealing member  243 , trapped between the poppet-type valve implemented above and the previously described customized reciprocating wiper seal implemented below in part by, and reciprocating within the intermediate chamber  187  with, the lower rim  249  of the upper reciprocating sealing member  243 . In any case, no beverage product will flow from the intermediate chamber  187  to the upper chamber  185  of the valve body  179   d , where is located the beverage product outlet port  186  from the valve body  179   d.    
     Additionally in the first state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  132 A- 132 E , a first diluent supplied under pressure to the first diluent inlet  160 , from any suitable flow control assembly in fluid communication with the first diluent inlet  160 , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the common trunk  164  of the first diluent inlet manifold  163  and a valve supply branch  165   d , corresponding to valve unit  177   d , in fluid communication from the common trunk  164  of the first diluent inlet manifold  163 , as previously described, between the first diluent inlet  160  and the first diluent inlet port  196 , provided as previously described through a side wall of the valve body  179   d  and into the lower chamber  192  of the valve body  179   a . Because, as described in defining this first state of operation of the integrated valve unit  177   d , the diluent selection valve  181   d  is taken as configured to select the first diluent—that is, diluent selection valve  181   d  is in its first operable state, an open flow path is established through the diluent selection valve  181   d  between the valve supply branch  165   d  from the common trunk  164  of the first diluent inlet manifold  163  and through the first diluent inlet port  196  into the lower chamber  192  of the valve body  179   d , as previously described. In consequence, the first diluent is further conveyed from the valve supply branch  165   d  and introduced through the first diluent inlet port  196  to the lower chamber  192  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  132 A- 132 B , the first diluent inlet port  196  introduces the first diluent into the lower chamber  192  upstream from the previously described lower valve seat  195  for the flow control valve  180   d , which forms a part of the lower poppet-type valve as implemented for controlling fluid flows of diluents. Before further treatment of the first diluent flow under the first state of operation of the integrated valve unit  177   d , it is noted that prior discussion of the operation of the diluent selection valve  181   d  for this state determined that the second diluent is wholly prevented by the diluent selection valve  181   d  from entering the valve unit  177   d , and need not be further discussed with respect to the first state of operation of the integrated valve unit  177   d.    
     Because in the defined first state of operation of the integrated valve unit  177   d  the ON-OFF flow control  153   d  is not operated, the valve rod  228  and the lower reciprocating sealing member  252 , which as previously described is dependently fixed in place about the valve rod  228  of the flow control valve  180   d  actuated by operation of the ON-OFF flow control  153   d , remain at least through the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  in their respective uppermost operable positions, as shown in  FIGS.  132 A and  132 D . As positioned, the valve face  257  formed by a top surface  256  of the lower reciprocating sealing member  252  remains sealingly engaged with the lower valve seat  195  formed at the fixed transition between the intermediate chamber  187  and the lower chamber  192  of the valve body  179   d . Although the first diluent will have entered the lower chamber  192  of the valve body  179   d , it will be contained within the lower chamber, unable to pass through the implemented poppet-type valve to flow into the intermediate chamber  187 . In any case, no diluent will flow from the lower chamber  192  to the intermediate chamber  187  of the valve body  179   d , where is located the diluent outlet port  191  from the valve body  179   d.    
     In a second state of operation of the integrated valve unit  177   d  as depicted in  FIGS.  133 A- 133 E , the diluent selection valve  181   d  is configured to select a first diluent known to a user, which not necessarily known to the user is supplied under pressure to the hand-held beverage dispenser  150  through the first diluent inlet  160  at the rear end  157  of the handle body  151 , for use in dispensing a beverage product associated by the user with ON-OFF flow control  153   d , which also not necessarily known to the user actuates flow control valve  180   d  of valve unit  177   d . As also represented in the figures, the ON-OFF flow control  153   d  is operated, and consequently, but again not necessarily known to the user, flow control valve  180   d  of valve unit  177   d  is actuated. 
     If the desired first diluent is not already selected, the user may make the selection as previously described in detail with reference to  FIGS.  132 A- 132 E . Additionally, and as described in greater detail with reference to  FIGS.  132 A- 132 E , selection of the first diluent for use in dispensing a beverage product with ON-OFF flow control  153   d  causes the horizontally oriented notch  212  through the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the first diluent inlet port  196  of the valve body  179   d , as particularly shown in  FIG.  133 B , which creates an open flow path through the diluent selection valve  181   d  allowing the first diluent to flow from supply branch  165   d , through the diluent selection valve  181   d , and into the first diluent inlet port  196  of the valve body  179   d  for introduction into the lower chamber  192  of the valve body  179   d , as shown in  FIGS.  133 B and  133 E . Simultaneously, however, and as also described in greater detail with reference to FIGS.  132 A- 132 E, selection of the first diluent also causes an intact portion of the side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the second diluent inlet port  197  of the valve body  179   d , as also particularly shown in  FIG.  133 B , which creates a flow blocking gate within the diluent selection valve  181   d  preventing flow through the diluent selection valve  181   d  of the second diluent from the supply branch  168   d  and introduction of the second diluent into the lower chamber  192  of the valve body  179   d , as shown in  FIGS.  133 B and  133 E . 
     In the second state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  133 A- 133 E , a beverage product supplied under pressure to the beverage product inlet  162   d , from any suitable flow control assembly in fluid communication with the beverage product inlet  162   d , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the dedicated beverage product supply conduit  169   d  provided, as previously described, between the beverage product inlet  162   d  and the beverage product inlet port  189 , provided as previously described through a side wall of the valve body  179   d , and introduced through the beverage product inlet port  189  to the intermediate chamber  187  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  133 D , the beverage product inlet port  189  introduces the beverage product into the intermediate chamber  187  upstream from the previously described upper valve seat  190  for the flow control valve  180   d , which forms a part of the upper poppet-type valve as implemented for controlling fluid flows of beverage product. As also previously described, the upper poppet-type valve is completed by the valve face  248  formed by a top surface  247  of the upper reciprocating sealing member  243 , which is dependently fixed in place about, and therefore reciprocates within the intermediate chamber  187  with, the valve rod  228  of the flow control valve  180   d  as the valve rod  228  is actuated by operation of the ON-OFF flow control  153   d.    
     Because, in the defined second state of operation of the integrated valve unit  177   d , the ON-OFF flow control  153   d  is operated to apply sufficient downward force to the valve rod  228  to overcome the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  and any additional upwardly applied fluid forces within the valve body  179   d , the valve rod  228  and its dependently supported upper reciprocating sealing member  243  shift downward. As the valve rod  228  and its dependently supported upper reciprocating sealing member  243  shift downward, flow from the intermediate chamber  187  to the upper chamber  185  of the valve body  179   d  is immediately enabled, and beverage product, which through priming or prior use is already in the intermediate chamber  187 , will immediately flow from the intermediate chamber  187  to the upper chamber  185 . As the valve rod  228  and its dependently supported upper reciprocating sealing member  243  continue to shift the short distance downward to reach maximum displacement, as shown in  FIGS.  133 A and  133 D , the flow of beverage product will quickly reach maximum rate. In any case, beverage product accumulating in the upper chamber  185  will then pass unobstructed through the beverage outlet port  189 , formed through the side wall of the valve body  179   a  from the upper chamber  185 , and be conveyed through the dedicated beverage dispensing conduit  173   d  provided, as previously described, between the beverage outlet port  189  and the beverage product outlet  176   d , which is placed and arranged at the bottom  154  and adjacent the forward end  156  of the handle body  151  to conduct the beverage product to the post-mix type drink dispenser assembly  104 , where it will be mixed together with the end-user selected first diluent as they are dispensed together into a beverage vessel. 
     Additionally in the second state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  133 A- 133 E , a first diluent supplied under pressure to the first diluent inlet  160 , from any suitable flow control assembly in fluid communication with the first diluent inlet  160 , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the common trunk  164  of the first diluent inlet manifold  163  and a valve supply branch  165   d , corresponding to valve unit  177   d , in fluid communication from the common trunk  164  of the first diluent inlet manifold  163 , as previously described, between the first diluent inlet  160  and the first diluent inlet port  196 , provided as previously described through a side wall of the valve body  179   d  and into the lower chamber  192  of the valve body  179   a . Because, as described in defining this second state of operation of the integrated valve unit  177   d , the diluent selection valve  181   d  is taken as configured to select the first diluent—that is, diluent selection valve  181   d  is in its first operable state, an open flow path is established through the diluent selection valve  181   d  between the valve supply branch  165   d  from the common trunk  164  of the first diluent inlet manifold  163  and through the first diluent inlet port  196  into the lower chamber  192  of the valve body  179   d , as previously described. In consequence, the first diluent is further conveyed from the valve supply branch  165   d  and introduced through the first diluent inlet port  196  to the lower chamber  192  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  133 A- 133 B , the first diluent inlet port  196  introduces the first diluent into the lower chamber  192  upstream from the previously described lower valve seat  195  for the flow control valve  180   d , which forms a part of the lower poppet-type valve as implemented for controlling fluid flows of diluents. As also previously described, the lower poppet-type valve is completed by the valve face  257  formed by a top surface  256  of the lower reciprocating sealing member  252 , which is dependently fixed in place about, and therefore reciprocates within the lower chamber  192  with, the valve rod  228  of the flow control valve  180   d  as the valve rod  228  is actuated by operation of the ON-OFF flow control  153   d . Before further treatment of the first diluent flow under the first state of operation of the integrated valve unit  177   d , it is noted that prior discussion of the operation of the diluent selection valve  181   d  for this state determined that the second diluent is wholly prevented by the diluent selection valve  181   d  from entering the valve unit  177   d , and need not be further discussed with respect to the first state of operation of the integrated valve unit  177   d.    
     Because, in the defined second state of operation of the integrated valve unit  177   d , the ON-OFF flow control  153   d  is operated to apply sufficient downward force to the valve rod  228  to overcome the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  and any additional upwardly applied fluid forces within the valve body  179   d , the valve rod  228  and its dependently supported lower reciprocating sealing member  252  shift downward. As the valve rod  228  and its dependently supported lower reciprocating sealing member  252  shift downward, flow from the lower chamber  192  to the intermediate chamber  187  of the valve body  179   d  is immediately enabled, and the first diluent, which through priming or prior use is already in the lower chamber  192 , will immediately flow from the lower chamber  192  to the intermediate chamber  187 . As the valve rod  228  and its dependently supported lower reciprocating sealing member  252  continue to shift the short distance downward to reach maximum displacement, as shown in  FIGS.  133 A and  133 D , the flow of first diluent will quickly reach maximum rate. At this juncture, it is noted that the first diluent accumulating in the intermediate chamber  187  is blocked, at any point in time, from traversing upward into any part of the intermediate chamber  187  beyond the position within the intermediate chamber  187 , at that point in time, by the previously described customized reciprocating wiper seal implemented in part by, and reciprocating within the intermediate chamber  187  with, the lower rim  249  of the upper reciprocating sealing member  243 , thereby preventing premature mixing, outside of the post-mix type drink dispenser assembly  104 , of the first diluent and the beverage product. In any case, the first diluent accumulating in the intermediate chamber  187 , will then pass unobstructed through the diluent outlet port  191 , formed through the side wall of the valve body  179   a  from the lower portion of the intermediate chamber  187 , and be conveyed through a valve dispense branch  172   d , corresponding to valve unit  177   d , in fluid communication with the common trunk  171  of the common diluents outlet manifold  170 , and the common trunk  171  of the common diluents outlet manifold  170 , as previously described, between the diluent outlet port  191  and the single, common diluents outlet  175 , which is placed and arranged at the bottom  154  and adjacent the forward end  156  of the handle body  151  to conduct any dispensed diluent, including the first diluent as dispensed through valve unit  177   d , to the post-mix type drink dispenser assembly  104 , where it will be mixed together with the simultaneously dispensed beverage product as they are dispensed together into a beverage vessel. 
     In a third state of operation of the integrated valve unit  177   d  as depicted in  FIGS.  134 A- 134 E , the diluent selection valve  181   d  is configured to select a second diluent known to a user, which not necessarily known to the user is supplied under pressure to the hand-held beverage dispenser  150  through the second diluent inlet  161  at the rear end  157  of the handle body  151 , for use in dispensing a beverage product associated by the user with ON-OFF flow control  153   d , which also not necessarily known to the user actuates flow control valve  180   d  of valve unit  177   d . As represented in the figures, however, the ON-OFF flow control  153   d  for actuation of flow control valve  180   d  of valve unit  177   d  is not operated. 
     As previously described in greater detail with reference to  FIGS.  132 A- 132 E , if the desired second diluent is not already selected, the user may make the selection by removing the bottom cover  287  from the handle body  151 , as previously described in detail with reference to  FIG.  120   , to expose the bottom  154  of the handle body  151  and the bottom side  222  of the closed bottom  221  of the open topped cup  207  of the diluent selection valve  181   a - 181   d  of each valve unit  177   a - 177   j , as particularly shown in  FIG.  116    to be accessible for diluent selection through the provided selection access notches  278  in the rigid plate  275  of the valve trim retaining member  274 . As previously described with reference to  FIGS.  132 A- 132 E , the user will be able to determine that diluent selection valve  181   d  corresponds to ON-OFF flow control  153   d . In any case, the user will utilize the indicium of alignment  224  provided on the bottom side  222  of the closed bottom  221  of the open topped cup  207 , as also shown in  FIG.  92   , in conjunction with the particular indicia of alignment  284  on the bottom side of the valve trim retaining member  274 , as also shown in  FIG.  114   , that are adjacent to and about the bottom side  222  of the closed bottom  221  of the open topped cup  207 , to effect the desired selection, as previously described in detail with reference to  FIGS.  112  and  116   . In effecting the desired selection, however, the user will generally identify the desired diluent by indicia of alignment  284  on the bottom side of the valve trim retaining member  274 , such as, for example, the letter W, which for the exemplary implementation indicates plain water, and the letter S, which for the exemplary implementation indicates soda. As depicted in the exemplary representation of  FIG.  116   , plain water is the first diluent and soda is the second diluent. As  FIG.  116    shows the first diluent to be selected, the user will, from the perspective of  FIG.  116   , rotate the open topped cup  207  as far as possible in the counterclockwise direction, at which point the arrowhead will also point generally toward the letter S. In any case, with the desired diluent selected, the user will then replace the bottom cover  287 , as also previously described in detail with reference to  FIG.  120   . 
     In selecting the second diluent for use in dispensing a beverage product with ON-OFF flow control  153   d , the user or other party responsible for configuring the exemplary preferred implementation of the hand-held beverage dispenser  150  according to the second embodiment of the present invention, causes the horizontally oriented notch  212  through the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the second diluent inlet port  197  of the valve body  179   d , as particularly shown in  FIG.  134 B . As shown in  FIGS.  134 B and  134 E , and also previously described, with reference to  FIGS.  112  and  116   , as the second operable state of the diluent selection valve  181   d , this alignment of the horizontally oriented notch  212  with the second diluent inlet port  197  creates an open flow path through the diluent selection valve  181   d  between the supply branch  168   d  for the second diluent and the second diluent inlet port  197  of the valve body  179   d , thereby allowing the second diluent to flow through the diluent selection valve  181   d  for introduction of the second diluent into the lower chamber  192  of the valve body  179   d . Simultaneously, however, selection of the second diluent for use in dispensing a beverage product with ON-OFF flow control  153   d  also causes an intact portion of the side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the first diluent inlet port  196  of the valve body  179   d , as also particularly shown in  FIG.  134 B . As shown in  FIGS.  134 B and  134 E , this alignment of an intact portion of the side wall  208  with the first diluent port  196  creates a flow blocking gate within the diluent selection valve  181   d  between the supply branch  165   d  for the first diluent and the first diluent inlet port  196  of the valve body  179   d , thereby preventing flow of the first diluent through the diluent selection valve  181   d  and introduction of the first diluent into the lower chamber  192  of the valve body  179   d.    
     In the third state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  134 A- 134 E , and as previously described in greater detail with reference to  FIGS.  132 A- 132 E , a beverage product supplied under pressure to beverage product inlet  162   d  will, in priming or prior use of the hand-held beverage dispenser  150 , be conveyed through the dedicated beverage product supply conduit  169   d  and introduced through the beverage product inlet port  189  to the intermediate chamber  187  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  134 D , the beverage product inlet port  189  introduces the beverage product into the intermediate chamber  187  upstream from the upper valve seat  190  for the flow control valve  180   d , which forms a part of the upper poppet-type valve as implemented for controlling fluid flows of beverage product. 
     Because in the defined third state of operation of the integrated valve unit  177   d  the ON-OFF flow control  153   d  is not operated, the valve rod  228  and the upper reciprocating sealing member  243  remain in their respective uppermost operable positions, as shown in  FIGS.  134 A and  134 D . As positioned, the valve face  248  formed by a top surface  247  of the upper reciprocating sealing member  243  remains sealingly engaged with the upper valve seat  190  at the transition between the cylindrical upper chamber  185  and the intermediate chamber  187  of the valve body  179   d . Although the beverage product will have entered the intermediate chamber  187  of the valve body  179   d , it will be contained in the volume about the upper reciprocating sealing member  243  and no beverage product will flow from the intermediate chamber  187  to the upper chamber  185  of the valve body  179   d , through the beverage product outlet port  186  from the valve body  179   d.    
     Additionally in the third state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  134 A- 134 E , a second diluent supplied under pressure to the second diluent inlet  161 , from any suitable flow control assembly in fluid communication with the second diluent inlet  161 , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the common trunk  167  of the second diluent inlet manifold  166  and a valve supply branch  168   d , corresponding to valve unit  177   d , in fluid communication from the common trunk  167  of the first diluent inlet manifold  166 , as previously described, between the second diluent inlet  161  and the second diluent inlet port  197 , provided as previously described through a side wall of the valve body  179   d  and into the lower chamber  192  of the valve body  179   a . Because, as described in defining this third state of operation of the integrated valve unit  177   d , the diluent selection valve  181   d  is taken as configured to select the second diluent—that is, the diluent selection valve  181   d  is in its second operable state, an open flow path is established through the diluent selection valve  181   d  between the valve supply branch  168   d  from the common trunk  167  of the second diluent inlet manifold  166  and through the second diluent inlet port  197  into the lower chamber  192  of the valve body  179   d , as previously described. In consequence, the second diluent is further conveyed from the valve supply branch  168   d  and introduced through the second diluent inlet port  197  to the lower chamber  192  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  86  and  134 A- 134 B , the second diluent inlet port  197  introduces the second diluent into the lower chamber  192  upstream from the previously described lower valve seat  195  for the flow control valve  180   d , which forms a part of the lower poppet-type valve as implemented for controlling fluid flows of diluents. Before further treatment of the second diluent flow under the third state of operation of the integrated valve unit  177   d , it is noted that prior discussion of the operation of the diluent selection valve  181   d  for this state determined that the first diluent is wholly prevented by the diluent selection valve  181   d  from entering the valve unit  177   d , and need not be further discussed with respect to the third state of operation of the integrated valve unit  177   d.    
     Because in the defined third state of operation of the integrated valve unit  177   d  the ON-OFF flow control  153   d  is not operated, the valve rod  228  and the lower reciprocating sealing member  252 , which as previously described is dependently fixed in place about the valve rod  228  of the flow control valve  180   d  actuated by operation of the ON-OFF flow control  153   d , remain at least through the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  in their respective uppermost operable positions, as shown in  FIGS.  134 A and  134 D . As positioned, the valve face  257  formed by a top surface  256  of the lower reciprocating sealing member  252  remains sealingly engaged with the lower valve seat  195  formed at the fixed transition between the intermediate chamber  187  and the lower chamber  192  of the valve body  179   d . Although the second diluent will have entered the lower chamber  192  of the valve body  179   d , it will be contained within the lower chamber, unable to pass through the implemented poppet-type valve to flow into the intermediate chamber  187 . In any case, no diluent will flow from the lower chamber  192  to the intermediate chamber  187  of the valve body  179   d , where is located the diluent outlet port  191  from the valve body  179   d.    
     In a fourth state of operation of the integrated valve unit  177   d  as depicted in  FIGS.  135 A- 135 E , the diluent selection valve  181   d  is configured to select a second diluent known to a user, which not necessarily known to the user is supplied under pressure to the hand-held beverage dispenser  150  through the second diluent inlet  161  at the rear end  157  of the handle body  151 , for use in dispensing a beverage product associated by the user with ON-OFF flow control  153   d , which also not necessarily known to the user actuates flow control valve  180   d  of valve unit  177   d . As also represented in the figures, the ON-OFF flow control  153   d  is operated, and consequently, but again not necessarily known to the user, flow control valve  180   d  of valve unit  177   d  is actuated. 
     If the desired second diluent is not already selected, the user may make the selection as previously described in detail with reference to  FIGS.  134 A- 134 E  and the references therein to  FIGS.  132 A- 132 E . Additionally, and as described in greater detail with reference to  FIGS.  134 A- 134 E , selection of the second diluent for use in dispensing a beverage product with ON-OFF flow control  153   d  causes the horizontally oriented notch  212  through the upper edge  211  of the cylindrical side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the second diluent inlet port  197  of the valve body  179   d , as particularly shown in  FIG.  135 B , which creates an open flow path through the diluent selection valve  181   d  allowing the second diluent to flow from supply branch  168   d , through the diluent selection valve  181   d , and into the second diluent inlet port  197  of the valve body  179   d  for introduction into the lower chamber  192  of the valve body  179   d , as shown in  FIGS.  135 B and  135 E . Simultaneously, however, and as also described in greater detail with reference to  FIGS.  134 A- 134 E , selection of the second diluent also causes an intact portion of the side wall  208  of the open topped cup  207  of the diluent selection valve  181   d  to operably align with the first diluent inlet port  196  of the valve body  179   d , as also particularly shown in  FIG.  135 B , which creates a flow blocking gate within the diluent selection valve  181   d  preventing flow through the diluent selection valve  181   d  of the first diluent from the supply branch  165   d  and introduction of the first diluent into the lower chamber  192  of the valve body  179   d , as shown in  FIGS.  135 B and  135 E . 
     In the fourth state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  135 A- 135 E , and as previously described in greater detail with reference to  FIGS.  133 A- 133 E , a beverage product supplied under pressure to the beverage product inlet  162   d  will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the dedicated beverage product supply conduit  169   d  and introduced through the beverage product inlet port  189  to the intermediate chamber  187  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  87  and  135 D , the beverage product inlet port  189  introduces the beverage product into the intermediate chamber  187  upstream from the upper valve seat  190  for the flow control valve  180   d , which forms a part of the upper poppet-type valve as implemented for controlling fluid flows of beverage product. The upper poppet-type valve is completed by the valve face  248  formed by a top surface  247  of the upper reciprocating sealing member  243 , which is dependently fixed in place about the valve rod  228  of the flow control valve  180   d , which is actuated by operation of the ON-OFF flow control  153   d.    
     Because, in the defined fourth state of operation of the integrated valve unit  177   d , the ON-OFF flow control  153   d  is operated to apply sufficient downward force to the valve rod  228  to overcome the upward biasing force applied to the valve rod  228  by the provided poppet spring  273  and any additional upwardly applied forces, the valve rod  228  and upper reciprocating sealing member  243  shift downward, immediately enabling flow from the intermediate chamber  187  to the upper chamber  185  of the valve body  179   d . Beverage product, which is already in the intermediate chamber  187 , will immediately flow to the upper chamber  185 . As the valve rod  228  and upper reciprocating sealing member  243  continue to shift the short distance downward to reach maximum displacement, as shown in  FIGS.  135 A and  135 D , the flow of beverage product will quickly reach maximum rate. In any case, beverage product in the upper chamber  185  will then pass through the beverage outlet port  189  and be conveyed through the dedicated beverage dispensing conduit  173   d  to the beverage product outlet  176   d , and conducted to the post-mix type drink dispenser assembly  104 , to be mixed together with the end-user selected second diluent as they are dispensed together into a beverage vessel. 
     Additionally in the fourth state of operation of the integrated valve unit  177   d , as previously defined and also depicted in  FIGS.  135 A- 135 E , a second diluent supplied under pressure to the second diluent inlet  161 , from any suitable flow control assembly in fluid communication with the second diluent inlet  161 , as located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , will in priming or prior use of the hand-held beverage dispenser  150  be conveyed through the common trunk  167  of the second diluent inlet manifold  166  and a valve supply branch  168   d , corresponding to valve unit  177   d , in fluid communication from the common trunk  167  of the second diluent inlet manifold  166 , as previously described, between the second diluent inlet  161  and the second diluent inlet port  197 , provided as previously described through a side wall of the valve body  179   d  and into the lower chamber  192  of the valve body  179   a . Because, as described in defining this fourth state of operation of the integrated valve unit  177   d , the diluent selection valve  181   d  is taken as configured to select the second diluent—that is, diluent selection valve  181   d  is in its second operable state, an open flow path is established through the diluent selection valve  181   d  between the valve supply branch  168   d  from the common trunk  167  of the second diluent inlet manifold  166  and through the second diluent inlet port  197  into the lower chamber  192  of the valve body  179   d , as previously described. In consequence, the second diluent is further conveyed from the valve supply branch  168   d  and introduced through the second diluent inlet port  197  to the lower chamber  192  of the valve body  179   d . As particularly shown in  FIGS.  85 ,  86  and  135 A- 135 B , the second diluent inlet port  197  introduces the second diluent into the lower chamber  192  upstream from the previously described lower valve seat  195  for the flow control valve  180   d , which forms a part of the lower poppet-type valve as implemented for controlling fluid flows of diluents. As also previously described, the lower poppet-type valve is completed by the valve face  257  formed by a top surface  256  of the lower reciprocating sealing member  252 , which is dependently fixed in place about, and therefore reciprocates within the lower chamber  192  with, the valve rod  228  of the flow control valve  180   d  as the valve rod  228  is actuated by operation of the ON-OFF flow control  153   d . Before further treatment of the second diluent flow under the fourth state of operation of the integrated valve unit  177   d , it is noted that prior discussion of the operation of the diluent selection valve  181   d  for this state determined that the first diluent is wholly prevented by the diluent selection valve  181   d  from entering the valve unit  177   d , and need not be further discussed with respect to the fourth state of operation of the integrated valve unit  177   d.    
     Because, in the defined fourth state of operation of the integrated valve unit  177   d , the ON-OFF flow control  153   d  is operated to apply sufficient downward force to the valve rod  228  to overcome the upward biasing force applied to the bottom end  241  of the valve rod  228  by the provided poppet spring  273  and any additional upwardly applied fluid forces within the valve body  179   d , the valve rod  228  and its dependently supported lower reciprocating sealing member  252  shift downward. As the valve rod  228  and its dependently supported lower reciprocating sealing member  252  shift downward, flow from the lower chamber  192  to the intermediate chamber  187  of the valve body  179   d  is immediately enabled, and the second diluent, which through priming or prior use is already in the lower chamber  192 , will immediately flow from the lower chamber  192  to the intermediate chamber  187 . As the valve rod  228  and its dependently supported lower reciprocating sealing member  252  continue to shift the short distance downward to reach maximum displacement, as shown in  FIGS.  135 A and  135 D , the flow of second diluent will quickly reach maximum rate. At this juncture, it is noted that the second diluent accumulating in the intermediate chamber  187  is blocked, at any point in time, from traversing upward into any part of the intermediate chamber  187  beyond the position within the intermediate chamber  187 , at that point in time, by the previously described customized reciprocating wiper seal implemented in part by, and reciprocating within the intermediate chamber  187  with, the lower rim  249  of the upper reciprocating sealing member  243 , thereby preventing premature mixing, outside of the post-mix type drink dispenser assembly  104 , of the second diluent and the beverage product. In any case, the second diluent accumulating in the intermediate chamber  187 , will then pass unobstructed through the diluent outlet port  191 , formed through the side wall of the valve body  179   a  from the lower portion of the intermediate chamber  187 , and be conveyed through a valve dispense branch  172   d , corresponding to valve unit  177   d , in fluid communication with the common trunk  171  of the common diluents outlet manifold  170 , and the common trunk  171  of the common diluents outlet manifold  170 , as previously described, between the diluent outlet port  191  and the single, common diluents outlet  175 , which is placed and arranged at the bottom  154  and adjacent the forward end  156  of the handle body  151  to conduct any dispensed diluent, including the second diluent as dispensed through valve unit  177   d , to the post-mix type drink dispenser assembly  104 , where it will be mixed together with the simultaneously dispensed beverage product as they are dispensed together into a beverage vessel. 
     Supplemental to the many foregoing detailed descriptions of various user interactions with the preferred implementation of the hand-held beverage dispenser  150  according to the second embodiment, the manner of use for the hand-held beverage dispenser  150  is now set forth end-to-end. Preparatory steps for deployment and use of the hand-held beverage dispenser  150 , include identifying and providing a suitable post-mix type drink dispenser assembly  104 , as is capable of properly dispensing the desired complement of post-mix beverages; identifying and providing a suitable flow control assembly, consistent with the intended beverage complement; and identifying and providing such related components as carbonators or cooling systems, and may be required for the intended service. In any case, the final preparatory steps include installation, if necessary, of the “back-room” components, such as bag-in-box systems, point-of-use components, such as a manifold system, and provision of connecting tubulars. Each of these preparatory steps, however, is well within the ordinary skill in the relevant arts, and may readily be accomplished by those new to the arts with the assistance of installation technicians, restaurant consultants, and the like. 
     With the supporting components readied, a first step prior to use of the hand-held beverage dispenser  150  is to connect the handle body  151  to a flow control assembly adapted to supply at least one pressurized beverage product and a plurality of pressurized diluents at appropriately regulated flow rates. As is well known to those of ordinary skill in the relevant arts, any of the many commercially available flow control assemblies is connected to the hand-held beverage dispenser  150  through a multiplicity of individual fluid lines conventionally mated with the fluid inlets  159  provided at the rear end  157  of the handle body  151 . As will be appreciated by those of ordinary skill in the relevant arts, the individual fluid lines through which the flow control assembly will supply pressurized fluids at appropriate flow rates, should include a plurality of beverage product lines for connection to the beverage product inlets  162   a - 162   h , as well as at least two diluent lines for connection to the first diluent inlet  160  and the second diluent inlet  161 . At the other end, a suitable post-mix type drink dispenser assembly  104 , as will be dependently coupled to the bottom  154  of the handle body  151  at a location adjacent the forward end  156  of the handle body  151 , should be installed by a preferably skilled person. For end use, however, an appropriate nozzle housing  122  for the mixer  105  of the post-mix type drink dispenser assembly  104  should be twisted on. As is well known to those of ordinary skill in the relevant arts, the nozzle housing  122  for the mixer  105  of the implemented post-mix type drink dispenser assembly  104  is readily removable to facilitate periodic cleaning of the post-mix type drink dispenser assembly  104 . 
     With the hand-held beverage dispenser  150  installed for use, and beverage products and diluents made available through connecting tubulars, the very simple end use of the hand-held beverage dispenser  150  relies entirely on single-button, ON-OFF type operation. As has been described, a plurality of ON-OFF flow controls  153   a - 153   j  is familiarly provided at the top  152  of the handle body  151  of the hand-held beverage dispenser  150 , and the flow controls are  153   a - 153   j  usually actuated by a simple thumb press, as is very familiar to those of ordinary skill in the relevant arts as well as to service industry employees in general. 
     In use of the inventive diluent selection features of the present invention, the fluid inlets  159  of the hand-held beverage dispenser  150  are conventionally placed, or assigned for placement, in fluid communication with outlets from a flow control assembly or any other like source of at least one flow regulated pressurized beverage product and a plurality of flow regulated pressurized diluents. The end-user charged with configuration or reconfiguration of the hand-held beverage dispenser  150  will then, for at least each of the provided beverage products, utilize a corresponding one of the inventively implemented diluent selection valves  181   a - 181   h  to select one of the plurality of diluents for dispensing with the corresponding beverage product. The end-user may also, however, similarly set up the diluent selection valve  181   i - 181   j  implemented in connection with the either or both of the previously described diluents only valve units  177   i - 177   j . If desired and not yet completed, the end-user charged with configuration or reconfiguration of the hand-held beverage dispenser  150  will often also attach or otherwise place a suitable post-mix type drink dispenser assembly  104 , such as are well known in the relevant arts, in fluid communication with the fluid outlets  174  from the hand-held beverage dispenser  150 . 
     As has been described in detail herein, and with reference to the described exemplary implementation, the foregoing diluent selections are readily made as follows: (1) the user disassembles the bottom cover  287  from the bottom  154  of the handle body  151  by removing the mounting screws  296  and pulling away the bottom cover  287 ; (2) the user will identify the desired diluent by for example, the letter W for plain water, or the letter S for soda, and will simply rotate the diluent selector to point the arrowhead to the desired diluent, such as, for example, to the letter S to select soda; and (3) once any desired change is made to the diluent selection valve  181   a - 181   j  the user will reassemble the bottom cover  287  with the bottom  154  of the handle body  151  conventionally using the earlier removed screws. 
     With the hand-held beverage dispenser  150  deployed for operation as described, and the desired diluents selected, the end-user will depress, or otherwise operate, one of the ON-OFF flow controls  153   a - 153   h  to actuate the corresponding flow control valve  180   a - 180   h , and dispense a desired beverage product with its selected diluent. Additionally, certain ON-OFF flow controls  153   i - 153   j  may correspond to flow control valves  180   i - 180   j  that are implemented in valve bodies  177   i - 177   j  adapted to dispense a diluent alone. 
     Turning now to  FIGS.  136 - 143   , a further improved structural arrangement for simple removal or attachment of a post-mix type drink dispenser assembly from or to a hand-held beverage dispenser—a mixer assembly removability arrangement—is shown and described. For convenience and clarity the exemplary implementation of the mixer assembly removability arrangement, as now set forth, shows the mixer assembly removability arrangement as integrated with, and describes the arrangement with reference to, the hand-held beverage dispenser  150  as heretofore described in detail with reference to  FIGS.  67 - 135 E . The inventive aspects of the mixer assembly removability arrangement, however, are in no manner necessarily limited to application in connection with the previously described hand-held beverage dispenser  150 , the exemplary post-mix type drink dispenser assembly  104 , or any other particular implementation of a hand-held beverage dispenser or post-mix type drink dispenser assembly. To the contrary, the teachings of these aspects of the present inventions are generally applicable to the widest range of hand-held beverage dispensers, whether or not incorporating other aspects of the present inventions. Additionally and as will be better understood further herein, these aspects of the present inventions also expressly contemplate utilization of any of a plurality of implemented post-mix type drink dispenser assemblies in connection with a single implementation of the inventive mixer assembly removability arrangement, as now set forth. 
     Notwithstanding broad applicability, any provision of the improved mixer assembly removability arrangement for simple removal or attachment of a post-mix type drink dispenser from or to a hand-held beverage dispenser is a feature of some implementation of a hand-held beverage dispenser. As such, the improved mixer assembly removability arrangement, as now shown and described, is implemented in full light of the representative design constraints identified by Applicant for the previously described hand-held beverage dispenser  150 . For example, it must still be considered that the piping system  158  must deliver an end-user expected minimum fluid flow capacity through each of its constituent fluid conduits, as utilized in any dispensing operation of the hand-held beverage dispenser  150 . As previously explained in detail, the required minimum fluid flow capacities largely establish the space requirements within the handle body  151  of the fluid conduits, including the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for diluents, as together convey all fluids from the piping system  158  through the forward end  156  of the handle body  151  and to the fluid outlets  174  interfacing with the post-mix type drink dispenser assembly  104 . 
     On the other hand and as previously discussed, the available space within, as determined by, the extents of the handle body  151  is necessarily very limited by such matters of commercial suitability as include the need to produce the handle body  151  of the hand-held beverage dispenser  150  with an ergonomically acceptable shape within the maximum dimensions acceptable to meet at least minimum requirements for ease of use and comfort in hand of the hand-held beverage dispenser  150 . As also previously discussed, the extents of the handle body  151  of a commercially suitable hand-held beverage dispenser  150  are further limited by the need to produce a hand-held beverage dispenser  150  having a total mass at or below the maximum total mass deemed acceptable for ease of use and comfort in hand of the hand-held beverage dispenser  150 . With this ever persistent matter of available space afforded by the extents of an otherwise optimized handle body  151  clearly in mind, however, it will be appreciated that Applicant has, within all of the foregoing constraints, devised a mixer assembly removability arrangement, as now described, that not only achieves very simple removal and attachment of a post-mix type drink dispenser from or to a hand-held beverage dispenser, but also advances the basic capabilities expected of hand-held beverage dispensers. 
     As will be better understood further herein, Applicant&#39;s most preferred implementation of the mixer assembly removability arrangement goes beyond enabling simple removal or attachment of a single specially adapted post-mix type drink dispenser assembly from or to a hand-held beverage dispenser to use this inventively provided capability to further provide for use of any user-selected one of a plurality of post-mix type drink dispenser assemblies in connection with a single implementation of a hand-held beverage dispenser. The plurality of post-mix type drink dispenser assemblies from which the user selection is made may include post-mix type drink dispenser assemblies of differing operating characteristics, such as may be desirable for primarily dispensing one type of beverage product as opposed to another. Additionally and as will also be better understood further herein, the plurality of post-mix type drink dispenser assemblies from which the user selection is made may also include commercially available off-the-shelf post-mix type drink dispenser assemblies, including assemblies originally developed for use with countertop or standalone post-mix drink dispensers. What is more, compatibility features incorporated within the implemented mixer assembly removability arrangement, as now shown and described or that may be later developed, may enable use of such commercially available off-the-shelf post-mix type drink dispenser assemblies with little or no modification or other adaptation, while nonetheless meeting the previously described design constraints. 
     Referring now to  FIGS.  136 - 137   , in particular, each of which depicts various components of the hand-held beverage dispenser  150  as exploded along the longitudinal axis  140  through the mixer assembly  105 , an exemplary mixer assembly  105 , which in cooperation with the previously described nozzle housing  122  generally forms the exemplary post-mix type drink dispenser assembly  104  for the hand-held beverage dispenser  150 , is shown as positioned for operable dependent attachment to the bottom  154  of the handle body  151  of the hand-held beverage dispenser  150  at a location adjacent the forward end  156  of the handle body  151 . Additionally, the figures show a specially formed cover  352  for an opening  351  to an interior space  350  formed or otherwise provided near the top  152  and at the forward end  156  of the handle body  151  of the hand-held beverage dispenser  150 . The specially formed cover  352  is shown as positioned for placement in use to cover the opening  351  to the interior space  350 . As also shown in  FIG.  136   , but more clearly in  FIG.  143   , the opening  351  provides access to a plurality of upwardly projecting mounting bosses  366 , which are also specially formed within the interior space  350 . As will be better understood further herein, the cover  352  for the opening  351  to the interior space  350 , positioned as described with respect to the opening  351 , is also simultaneously positioned for cooperative engagement with the upwardly projecting mounting bosses  366  in implementation of the inventive mixer assembly removability arrangement of the present invention. 
       FIGS.  136 - 137    also show various other components of the hand-held beverage dispenser  150 , as support implementation of the mixer assembly removability arrangement, or form part hereof. For example, a plurality of connector tubes  134  is shown as operably deployed within the various previously described fluid outlets  174  from the piping system  158  of the hand-held beverage dispenser  150 . As will be additionally described further herein, the connector tubes  134  facilitate the previously mentioned attachment of the mixer assembly  105  to the handle body  151 . A rubber or like material seal  133  is shown as positioned for use in operative attachment of the mixer assembly  105  to the handle body  151 , as also will be better understood further herein. Finally, the figures show a plurality of machine screws  363  as positioned for use in operably affixing the specially formed cover  352  in place about the opening  351  to the previously discussed interior space  350 . Implementing multifunctionality similar to that as previously noted for the cover  352  and as will be better understood further herein, the machine screws  363 , or other suitably provided fasteners, positioned as described with respect to the cover  352 , are also simultaneously positioned for cooperative engagement with the previously discussed specially formed cover  352 , upwardly projecting mounting bosses  366 , elements of the mixer assembly  105  and additional elements of the handle body  151 , as will be described further herein, in implementation of the inventive mixer assembly removability arrangement of the present invention. 
     In order to doubly ensure clarity in the following further description of the inventive mixer assembly removability arrangement of the present invention, an overview of the components and the operation of the exemplary mixer assembly  105  is presented. As previously noted, however, the components and the operation of the exemplary mixer assembly  105  are also shown and described in greater detail in U.S. patent application Ser. No. 16/394,889 filed Apr. 25, 2019 for METHODS AND APPARATUS FOR POST-MIX DRINK DISPENSING, which has been incorporated herein. In any case and as shown in  FIGS.  136 - 137   , the exemplary mixer assembly  105  is, as a matter of manufacturability, generally formed as a first stage body  106  and a second stage body  111 , which, in at least the most preferred implementations of the present invention, are press fit together or otherwise made unitary. In this manner, manufacturability may be eased while nonetheless minimizing the part and fastener count of the mixer assembly  105 . As a result, a service industry employee as will typically be charged with care for the hand-held beverage dispenser  150  is not burdened with multiple parts that are easily lost or troublesome to assemble. Alternatively, however, it is noted that the same result may in some cases be attainable using additive manufacturing or the like to form the mixer assembly  105  as a single body component. 
     In any case and as shown in  FIG.  136   , a plurality of connector tube orifices  108 , as will be detailed further herein, is provided at the top  107  of the first stage body  106  of the mixer assembly  105  for introduction of beverage components to the mixer assembly  105 . Similarly and as shown in  FIG.  137   , a plurality of directional nozzles  115 , for discharging beverage components, is provided within an interior space  114  at the bottom of the second stage body  111 . As will be better understood further herein, each beverage product conveyed through one of the previously described beverage product dispensing conduits  173   a - 173   h  is ultimately introduced to the mixer assembly  105  through a corresponding product tube orifice  109  among the plurality of connector tube orifices  108  at the top  107  of the first stage body  106 . The introduced beverage product is channeled internally through the mixer assembly  105 , and discharged from a corresponding one of the nozzles  115 . In operation of the post-mix type drink dispenser assembly  104 , however, the previously described nozzle housing  122  is operably in place, as also previously described. As is well known to those of ordinary skill in the relevant arts, the discharged beverage product then mixes together with a simultaneously dispensed diluent within the operably in place nozzle housing  122  as the beverage product and diluent are discharged from the nozzle housing  122 . 
     Additionally, a gap  132  is formed circumferentially about the mixer assembly  105 , between the first stage body  106  and the second stage body  111 , as shown in  FIGS.  136 - 137   . As also will be better understood further herein, each diluent conveyed through the previously described single, common trunk  33  for diluents is ultimately introduced to the mixer assembly  105  through a corresponding diluents tube orifice  110  among the plurality of connector tube orifices  108  at the top  107  of the first stage body  106 . Unlike the beverage products, however, the introduced diluent is channeled internally through the mixer assembly  105 , and discharged through the gap  132 . As is well known to those of ordinary skill in the relevant arts, the flow through the gap  132  is distributed as evenly as possible about the circumference of the gap  132  by an internally implemented diffuser. In any case, as the diluent is discharged from the internally implemented diffuser of the mixer assembly  105 , it flows downward through an annular channel formed between the lower exterior portion  116  of the second stage body  111  and the inner surface  123  of the operably in place nozzle housing  122 . The diluent may then be discharged alone from the nozzle housing  122 , in the case of a previously described diluents only dispense, or mixed together with a simultaneously dispensed beverage product within the nozzle housing  122  as the beverage product and diluent are discharged from the nozzle housing  122 . 
     Finally, a plurality of additive, or “flavor shot,” tube orifices  131  for introducing added beverage components to the mixer assembly  105  is provided among the plurality of connector tube orifices  108  shown in  FIG.  136   , at the top  107  of the first stage body  106  of the mixer assembly  105 . As is well known to those of ordinary skill in the relevant arts, a flavor shot or like additive is a small amount of concentrated flavor syrup, such as lemon flavoring or sweetener for hot or iced tea, that is generally dispensed after dispensing a base drink and without combining with a diluent fluid. Flavor shot functionality, however, generally involves microcontroller-based or like control of the beverage dispenser in order to correctly time dispensing of the additive relative to dispensing times of the beverage product and diluent. As a result, flavor shot type functionality is typically implemented in countertop or standalone beverage dispensers, and is generally beyond the functional capabilities of hand-held beverage dispensers as represented by the exemplary preferred implementation of the hand-held beverage dispenser  150 . 
     For clarity, the additive, or “flavor shot,” tube orifices  131  provided among the plurality of connector tube orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105  are not utilized in the preferred implementation of the second embodiment of the hand-held beverage dispenser  150 . It is nonetheless importantly noted, however, that a beverage additive introduced to the mixer assembly  105  through one of the additive tube orifices  131  is otherwise handled within the mixer assembly  105  nearly the same as is handled a beverage product introduced to the mixer assembly  105  through one of the provided product tube orifices  109 . In particular, the mixer assembly  105  is configured to channel a beverage additive introduced to the mixer assembly  105  through one of the additive tube orifices  131  internally through the mixer assembly  105 , and to discharge the internally channeled beverage additive from a corresponding one of the nozzles  115  housed within the interior space  114  at the bottom of the second stage body  111 . 
     At this juncture it is noted that the post-mix type drink dispenser assembly  104  for the hand-held beverage dispenser  150 , of which the mixer assembly  105  as previously described is a fundamental component, may for purposes of this exemplary detailed description be taken as generally representative of the commercially available off-the-shelf post-mix type drink dispenser assemblies as may be utilized in connection with the mixer assembly removability arrangement of the present invention. As will be appreciated by those of ordinary skill in the relevant arts, in view of the previous detailed description of the of the fluid outlets  174  from the piping system  158  of the exemplary implementation of the hand-held beverage dispenser  150  and the foregoing description of the mixer assembly  105  of the exemplary post-mix type drink dispenser assembly  104 , additional provision must be made to convey fluids from the fluid outlets  174  to the connector tube orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105 . It is to this end that the previously mentioned plurality of connector tubes  134  as shown in  FIGS.  137 - 139    are provided, as will be better understood further herein. 
     As shown in  FIG.  140   , and more clearly in  FIGS.  76  and  103   , the preferred implementation of the hand-held beverage dispenser  150  of the second embodiment of the present invention comprises a toe plate  364 , which, as will be better understood further herein, provides a sturdy base upon which the interface between the previously described piping system  158  of the exemplary hand-held beverage dispenser  150  and the mixer assembly  105  of the exemplary post-mix type drink dispenser assembly  104  is implemented. As particularly shown in  FIGS.  76  and  103   , the toe plate  364  is formed unitary with the handle body  151  at the bottom of the previously described interior space  350  at the forward end  156  of the handle body  151 . As shown in the  FIGS.  76 ,  103  and  138   , the toe plate  364  is supported all around by, and forms a part of, the bottom  154  of the handle body  151 . It is noted that in at least the exemplary preferred implementation of the hand-held beverage dispenser  150  the various fluid conduits of the piping system  158  have previously been described as comprising stainless steel, and have been shown and described as having many points of internal support substantially within the extents of the handle body  151 . That said, it is also observed that the portions of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for diluents that pass through the interior space  350  at the forward end  156  of the handle body  151  are especially free floating absent the foundation provided by the toe plate  364 . 
     In any case and as best shown in  FIGS.  76 ,  103  and  143   , the terminus of each beverage product dispensing conduit  173   a - 173   h  and the common trunk  171  for diluents is collected, arranged and stably fixed to the top side  365  and slightly within the toe plate  364 . As will in light of this exemplary description be appreciated by those of ordinary skill in the relevant arts, the collective support provided by the rigidly provided toe plate  364  prevents any excessive strain or stress on or to the beverage product dispensing conduits  173   a - 173   h  or the common trunk  171  for diluents as the post-mix type drink dispenser assembly  104  is attached or removed to or from the handle body  151 . Additionally and as best shown in  FIGS.  76 ,  103  and  140   , each of the fluid outlets  174  from the piping system  158 , is formed within the toe plate  364  from the slightly embedded terminus of, and in fluid communication with, a corresponding one of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for diluents. As shown in  FIGS.  76 ,  103 ,  137 - 138  and  140   , each of the provided fluid outlets  174  extends downward through the toe plate  364 , and opens to the exterior of the handle body  151  at the bottom side  371  of the toe plate  364  through the substantially planar top of a downwardly opening cylindrical cavity  141  formed in the bottom side  371  of the toe plate  364 . As will in light of this exemplary description also be appreciated by those of ordinary skill in the relevant arts, fixing the fluid outlets  174  about the depicted substantially planar top of the downwardly opening cylindrical cavity  141  of the toe plate  364  provides a consistent rigid interface for attachment of the post-mix type drink dispenser assembly  104 . 
     In any case, the fluid outlets  174  from the piping system  158  are arranged at the bottom side  371  of the toe plate  364  as required to interface with the mixer assembly  105  of the post-mix type drink dispenser assembly  104 . Additionally, the previously noted arrangement at the top side  365  of the toe plate  364  of the terminus of each beverage product dispensing conduit  173   a - 173   h  and the common trunk  171  for diluents most preferably corresponds to the arrangement of the fluid outlets  174  at the bottom side  371  of the toe plate  364 . In this manner, implementing the previously discussed fluid communication through the toe plate  364  between the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for diluents at the top side  365  and the corresponding fluid outlets  174  at the bottom side  371  is facilitated. 
     As will be better understood herein, the previously described cylindrical cavity  141  is sized and otherwise adapted to dependently receive the upper portion of the mixer assembly  105  of the post-mix type drink dispenser assembly  104 , as operably affixed to the handle body  151  of the hand-held beverage dispenser  150 . As shown in the figures and particularly in  FIGS.  76 ,  103  and  140   , each fluid outlet  174  comprises a cylindrical orifice formed or otherwise provided in the top of the downwardly opening cylindrical cavity  141  of the toe plate  364  concentrically about the terminus of a corresponding one of the product dispensing conduits  173   a - 173   h  or the common trunk  171  for diluents. 
     As previously noted, the fluid outlets  174  from the piping system  158  are arranged as required to interface with the mixer assembly  105  of the post-mix type drink dispenser assembly  104 . Additionally, the cylindrical orifices forming the fluid outlets  174  from the piping system  158  are sized and shaped as required to interface with the mixer assembly  105  of the post-mix type drink dispenser assembly  104 , as will be better understood further herein. To this end and as particularly shown in  FIGS.  76  and  103   , each shoulder at the fluid interface between the cylindrical orifice forming each fluid outlet  174  and the terminus of each corresponding one of the product dispensing conduits  173   a - 173   h  or the common trunk  171  for diluents is formed at a commonly fixed distance from the top of the downwardly opening cylindrical cavity  141  of the toe plate  364 , thereby forming a set of uniform depth receptacles. As will be better understood further herein, however, other aspects of the size and shape of the cylindrical orifices forming the fluid outlets  174  are subject to other implementation considerations, as together will be described further herein. 
     As best shown in  FIGS.  140 - 141   , the fluid outlets  174  within the cavity  141  at the bottom side  371  of the toe plate  364  include a beverage product outlet  176   a - 176   h  corresponding to each product tube orifice  109  provided in the top  107  of first stage body  106  for receiving a beverage product into the mixer assembly  105 . As also shown in the figures, the fluid outlets  174  within the cavity  141  at the bottom side  371  of the toe plate  364  additionally include a diluents outlet  175  corresponding to the single diluents tube orifice  110  provided in the top  107  of first stage body  106  for receiving diluents into the mixer assembly  105 . As clearly shown in the figures, each provided beverage product outlet  176   a - 176   h  and the provided diluents outlet  175  are arranged complementary to the arrangement of the product tube orifices  109  and the diluents tube orifice  110  at the top  107  of the first stage body  106  of the mixer assembly  105 , as required to interface with the mixer assembly  105  of the post-mix type drink dispenser assembly  104 . 
     Additionally and as particularly shown in  FIG.  140   , a plurality of blind holes  138  is provided among the cylindrical orifices forming the fluid outlets  174  from the piping system  158 . As shown in  FIGS.  140 - 141   , each provided blind hole  138  is arranged at the bottom side  371  of the toe plate  364  complementary to the arrangement of the previously described additive tube orifices  131  at the top  107  of the first stage body  106  of the mixer assembly  105 . What is more, each blind hole  138  is formed or otherwise provided within the toe plate  364  to have a depth equal to the fixed distance from the top of the downwardly opening cylindrical cavity  141  of the toe plate  364  to each previously described shoulder of a cylindrical orifice forming a fluid outlet  174  from the piping system  158 . As a result, each blind hole  138  forms an additional, albeit blind, uniform depth receptacle within the previously described set of uniform depth receptacles. As previously noted, the additive tube orifices  131 , for which the foregoing blind holes  138  are provided, are not utilized in the preferred implementation of the second embodiment of the hand-held beverage dispenser  150 . The presence and functionality of the additive tube orifices  131  as provided for the representative exemplary post-mix type drink dispenser assembly  104 , as well as any unused feature or functionality as may be implemented in connection with any utilized post-mix type drink dispenser assembly, however, must nonetheless be carefully considered. In particular, as will be clear in the following discussions, such unused features or functions can have negative or otherwise undesirable impact when integrated within the hand-held beverage dispenser  150 , in which case some mitigation must generally be implemented. 
     Although the additive orifices  131  as implemented in the representative mixer assembly  105  of the post-mix type drink dispenser assembly  104  are not utilized by the hand-held beverage dispenser  150 , the presence of these or like extraneous connector tube orifices  108  generally cannot be simply disregarded in implementation of the mixer assembly removability arrangement of the present invention. As previously noted the mixer assembly  105  is configured to internally channel a beverage additive introduced to the mixer assembly  105  through one of the additive tube orifices  131  to a corresponding one of the nozzles  115  housed within the interior space  114  at the bottom of the second stage body  111 . As is well known to those of ordinary skill in the arts, this configuration of the mixer assembly  105  creates an open fluid pathway through the mixer assembly  105  between the interior space  114  at the bottom of the second stage body  111  and any accessible space outside of the mixer assembly  105  that is contiguous with the additive tube orifice  131  at the top  107  of the first stage body  106  of the mixer assembly  105 . For clarity, each unchecked extraneous connector tube orifice  108  will create an open fluid pathway between the interior space  114  at the bottom of the second stage body  111  of the mixer assembly  105 , which is always open to the external environment about the hand-held beverage dispenser  150 , and whatever internal space of the hand-held beverage dispenser  150  may, in a particular implementation of the mixer assembly removability arrangement of the present invention, be contiguous with the additive tube orifice  131  at the top  107  of the first stage body  106  of the mixer assembly  105 . 
     Unlike the countertop and standalone beverage dispensers for which much development of post-mix type drink dispenser assemblies is conducted, including the representative exemplary post-mix type drink dispenser assembly  104 , hand-held beverage dispensers, like the exemplary hand-held beverage dispenser  150 , can and often are turned upside down and moved about in any number of motions. Additionally, the relatively small size of hand-held beverage dispensers makes at least the nozzle housings  122  for hand-held beverage dispensers susceptible to being unintentionally introduced to any number of external fluid sources. As a result, it is very likely that a remnant beverage fluid or other fluid introduced to the interior of the nozzle housing  122  will at some point pass through any unchecked pathway, and thereby be unintentionally introduced to any internal space that is contiguous with the unchecked pathway, as previously described. 
     As will be better understood further herein, the preferred implementation of the mixer assembly removability arrangement of the present invention contemplates that the previously mentioned rubber or like material seal  133  will generally occupy all of the internal space of the hand-held beverage dispenser  150  as would otherwise be immediately contiguous with an unchecked pathway. On further consideration of the effects of such unchecked pathways, however, it may well be determined that the presence of the seal  133 , which as will be better understood further herein is provided as generally specified for conventional use with the mixer assembly  105 , is an insufficient mitigation for the described open fluid pathway through the mixer assembly  105 . For example, it may be determined that exposure of the rubber or like material seal  133  to the uncontained beverage fluids, which may well remain on and about the seal  133  after even the most thorough cleaning of the hand-held beverage dispenser  150 , may sooner or later cause premature degradation of the seal  33 . Similarly, it may be determined such uncontained beverage fluids as may remain on and about the seal  133  in spite of thorough cleaning of the hand-held beverage dispenser  150  are likely to spawn and/or promote growth of mold, fungus or other potentially pathogenic organisms. 
     As will be better understood further herein, each orifice, as shown in  FIGS.  136 - 137   , through the seal  133 , which as previously described is provided as generally specified for conventional use with the mixer assembly  105 , is intended in use to receive therethrough one of the previously mentioned plurality of connector tubes  134 . As will in light of this exemplary description be understood by those of ordinary skill in the art, the use of manufacturer developed or specified components and techniques in attachment of the post-mix type drink dispenser assembly  104  to the handle body  151  is one way to obtain the benefit of the manufacturer&#39;s experience to prevent such implementation problems as unforeseen leaks and the like. In any case, in such an implementation of the mixer assembly removability arrangement of the present invention it may be determined that failure to occupy each orifice corresponding to one of the unused additive tube orifices  131 , may cause portions of the seal  133  adjacent to the open orifices to crinkle or otherwise deform during attachment of the mixer assembly  105 , which in turn may cause the seal  133  to malfunction and/or be more susceptible to trapping or otherwise retaining unintentionally introduced beverage fluid or other fluid giving rise to one or more of the previously described negative effects in addition to the potential negative effects concomitant direct exposure of the seal  133  itself to beverage or other fluids. In any such case, the most preferred implementations of the mixer assembly removability arrangement of the present invention will, if practicable within the level of risk posed by the negative effect, holistically implement a suitably effective mitigation to address the presence of the extraneous feature or function of a utilized post-mix type drink dispenser assembly. 
     As shown in  FIGS.  137 - 139   , a suitable mitigation of any undesirable effects of the unutilized additive orifices  131  as implemented in the mixer assembly  105  of the representative post-mix type drink dispenser assembly  104  is determined to be the provision of a corresponding connector tube  134 , as previously mentioned, for each connector tube orifice  108  implemented for the mixer assembly  105  of the post-mix type drink dispenser assembly  104 , whether or not utilized by the hand-held beverage dispenser  150 . To this end, the previously described blind holes  138 , implemented as previously described and arranged at the bottom side  371  of the toe plate  364 , each provide an identical interface for a connector tube  134  as would be provided if the corresponding one of the additive orifices  131  was utilized. On the other hand, the blind holes  138  will effectively form a cap for the inserted end of a connector tube  134 , thereby trapping any fluid introduced through the otherwise open pathway to within structures all designed to convey or otherwise handle beverage components, thereby fully effectively mitigating any negative effect of the unused additive tube orifices  131 . 
     As previously described, details of various aspects of the size and shape of the cylindrical orifices forming the fluid outlets  174  from the piping system  158  were deferred as being subject to other implementation considerations. As shown in  FIGS.  137 - 139   , the connector tubes  134  are shown to be provided in fluid communication with the fluid outlets  174  from the piping system  158  of the hand-held beverage dispenser  150 , and as preferably dependently affixed to the previously described toe plate  364  implemented as part of the handle body  151 . As shown in  FIGS.  137 - 139   , the implemented mixer assembly removability arrangement of the present invention may be described as being adapted for use with a class or type of post-mix type drink dispenser assembly that, like the representative post-mix type drink dispenser assembly  104 , implements a mixer assembly, like the mixer assembly  105  implemented by the representative post-mix type drink dispenser assembly  104 , comprising open orifices, like the connector tube orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105 , for introduction of beverage components to the mixer assembly. 
     While as noted above the connector tubes  134  for attaching an “open orifices” type or class of post-mix type drink dispenser assembly are preferably dependently affixed at a first end to the previously described toe plate  364  implemented as part of the handle body  151 , the second end of each connector tube  134  is most preferably readily removably, but sealingly, received within a corresponding connector tube orifice  108  provided in the top  107  of the first stage body  106  of the mixer assembly  105  of the implemented post-mix type drink dispenser assembly  104 . In the most preferred implementation of the mixer assembly removability arrangement as particularly depicted in  FIGS.  137 - 139   , each of the provided connector tubes  134  is cooperatively adapted with a corresponding fluid outlet  174  or blind hole  138  formed in the bottom side  371  of the toe plate  364  to press fit an end of the connector tube  134  within the fluid outlet  174  or blind hole  138 , as is well within the ordinary skill in the relevant arts. Accordingly, each of the cylindrical orifices forming the fluid outlets  174  from the piping system  158 , as well as each of the blind holes  138  standing in for unnecessary fluid outlets, is sized and tapered or otherwise shaped for press fit of a corresponding one of the connector tubes  134 , and the connector tubes  134  are likewise cooperatively sized as necessary to be readily removably, but sealingly, received within the connector tube orifices  108  in the top  107  of the first stage body  106  of the mixer assembly  105 . 
     Alternatively, an implemented mixer assembly removability arrangement of the present invention may be described as being adapted for use with a class or type of post-mix type drink dispenser assembly that implements a mixer assembly comprising fixed connector tubes for introduction of beverage components to the mixer assembly. While as noted the connector tubes for attaching this “fixed connector type” type or class of post-mix type drink dispenser assembly are preferably dependently affixed at a first end to the top of the mixer assembly of the utilized fixed connector type post-mix type drink dispenser assembly, the second end of each connector tube of the utilized post-mix type drink dispenser assembly is most preferably readily removably, but sealingly, received within a corresponding fluid outlet  174  or blind hole  138  arranged at the bottom side  371  of the toe plate  364 . Accordingly, each of the cylindrical orifices forming the fluid outlets  174  from the piping system  158 , as well as each of the blind holes  138  standing in for unnecessary fluid outlets, is sized and shaped as necessary to readily removably, but sealingly, receive the second end of each connector tube of the utilized post-mix type drink dispenser assembly. 
     As previously noted, the plurality of connector tubes  134  as shown in  FIGS.  137 - 139    is provided to convey fluids from the fluid outlets  174  of the piping system  158  implemented in the exemplary hand-held beverage dispenser  150  to the connector tube orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105  implemented in the exemplary post-mix type drink dispenser assembly  104 . Additionally, however, it is now understood that additional features may, in connection with the mixer assembly removability arrangement of the present invention, be implemented in the hand-held beverage dispenser  150  in order to provide broader compatibility with commercially available off-the-shelf and like post-mix type drink dispenser assemblies. To this end, additional connector tubes  134  are provided to accommodate extraneous orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105  implemented in the exemplary post-mix type drink dispenser assembly  104 , thereby providing enhanced compatibility of for utilization of the exemplary post-mix type drink dispenser assembly  104 , or other post-mix type drink dispensers of similar character. 
     As shown in  FIGS.  137 - 140    for the exemplary implementation of the hand-held beverage dispenser  150  as heretofore shown and described, each of the previously described plurality of connector tubes  134  must be affixed, as also previously described, to the handle body  151 , in a final stage of preparation for use of the handle body  151  in implementation of the hand-held beverage dispenser  150 . In particular, and working from the inside and out, a first end of a connector tube  134  is press fit into the cylindrical receptacle forming the single, common diluents outlet  175 , whereby the inserted connector tube  134  becomes an open diluents pathway  136  providing fluid communication for the conveyance of a selected diluent between the terminus of the common trunk  171  for all diluents at the common diluents outlet  175  and the second end of the connector tube  174  opposite the inserted first end. Additionally, a first end of a connector tube  134  is press fit into each of the cylindrical receptacles formed by a selected one of the blind holes  138 , whereby each inserted connector tube  134  becomes a closed pathway  135  blocking fluid communication beyond the inserted first end of the connector tube  134  of any fluid introduced to the closed pathway  135  through the open second end of the connector tube  174  opposite the inserted first end. Finally, a first end of a connector tube  134  is press fit into each of the cylindrical receptacles forming a selected one of the beverage product outlets  176   a - 176   h , whereby each inserted connector tube  134  becomes an open product pathway  135  providing fluid communication for the conveyance of a beverage product between the terminus of a corresponding one of the beverage product dispensing conduits  173   a - 173   h  at the selected beverage product outlet  176   a - 176   h  and the second end of the connector tube  174  opposite the inserted first end. 
     In preparation for attaching the post-mix type drink dispenser assembly  104  to the handle body  151 , in assembly of the hand-held beverage dispenser  150 , the previously mentioned rubber or like material seal  133  is first fitted in place about the operably affixed connector tubes  134 , and within the previously described cavity  141  at the forward end  156  of the bottom  154  of the handle body  151 . As shown in  FIGS.  136 - 137   , the rubber seal  133  comprises a plurality of orifices therethrough, each of which as shown in the figures is sized, shaped and arranged to snugly encircle one each of the of the connector tubes  134 . The diameter of the circular rubber seal  133  is slightly less than the diameter of the circular cavity  141 , such that the in place seal  133  substantially covers the top of the cavity  141  about the connector tubes  134 . 
     With the rubber seal  133  in place as described, the connector tube orifices  108  of the mixer assembly  105  are engaged about the connector tubes  134 , and the top  107  of the first stage body  106  is inserted into the cavity  141  and pressed snugly against the previously placed rubber seal  133 . As shown in  FIG.  141   , the arrangement of the various connector tube orifices  108  at the top  107  of the first stage body  106  of the mixer assembly  105  exhibits multiple symmetries, providing four orientations in which the mixer assembly  105  may be attached about the connector tubes  134  to the handle body  151 . Additionally, the internal and other structures of the mixer assembly  105  are arranged with similar symmetries such that the mixer assembly  105  may be affixed to the handle body  151  in any of the four orientations engaging all of the connector tubes  134 . In any case, each of the four orientations produces identical behavior for the mixer assembly  105 . 
     With the mixer assembly  105  placed as described, it is noted that the connector tubes  105  are operably positioned to establish the desired fluid communications between the piping system  158  within the handle body  151  and the mixer assembly  105  of the post-mix type drink dispenser assembly  104 . All that remains is to firmly secure the mixer assembly  105  in place, as will be described further herein. As will now, however, be appreciated by those of ordinary skill in the relevant arts, in light of this exemplary description, the rubber seal  133  sandwiched between the top  107  of the first stage body  106  of the mixer assembly  105  and the planar top of the cavity  141  at the bottom  154  of the handle body  151  will be compressed, causing the seal  133  to expand laterally into any gaps and form a fluid tight seal between each connector tube  134  and the corresponding connector tube orifice  108 . 
     With fluid tight seals formed as described, the piping system  158  of the hand-held beverage dispenser  150  is operably in fluid communication with the mixer assembly  105 . In particular, the provided connector tubes  134  implement a product pathway  135  for each beverage product outlet  176   a - 176   h  formed at the bottom side  371  of the toe plate  364  for providing fluid communication between the product outlet  176   a - 176   h  and a corresponding product tube orifice  109  provided in the top  107  of the first stage body  106  for receiving a beverage product into the mixer assembly  105 . Likewise, the provided connector tubes  134  implement a diluents pathway  136  for providing fluid communication between the diluents outlet  175  formed at the bottom side  371  of the toe plate  364  and the diluents tube orifice  110  provided in the top  107  of the first stage body  106  for receiving diluents into the mixer assembly  105 . Finally, the provided connector tubes  134  implement a closed pathway  137  for each unused additive orifice  131  in the top  107  of the first stage body  106  of the mixer assembly  105  provided between the unused additive orifice  131  and a corresponding blind hole  138  at the bottom side  371  of the toe plate  364 , each provided closed pathway  137  being cooperatively adapted with the corresponding blind hole  138  to contain any fluid as may be introduced through the additive orifice  131  into the closed pathway  137  to fluid contact with the closed pathway  137  and the corresponding blind hole  138 . 
     As previously noted, with the rubber seal  133  fitted in place about the connector tubes  134  as operably affixed to the handle body  151 , and the mixer assembly  105  engaged about the connector tubes  134  such that the top of the mixer assembly  105  is inserted into the cavity  141  snugly against the rubber seal  133 , the mixer assembly  105  need only be firmly secured in place against the rubber seal  133  for the hand-held beverage dispenser  150  to be operably prepared for use. In order to take maximum advantage of commercially available off-the-shelf and similar integrations, however, Applicant has found it desirable to implement the mixer assembly removability arrangement of the present invention with minimal, if any, modification or other adaptation required of a utilized preexisting post-mix type drink dispenser assembly. Beyond benefiting from potential savings in design and manufacturing costs, this approach can provide compatibility with an entire class or type of post-mix type drink dispenser assembly, including newly developed future improvements, without more. What is more, this approach is also most likely to preserve manufacturer design intent for the utilized post-mix type drink dispenser assembly, as generally captures subtle as well as major innovations achieved through longstanding experience in the broader markets including countertop and standalone dispensers. 
     While preservation of many improvements implemented for diffusers, nozzle housings and similar features, as generally are either internal to a post-mix type drink dispenser assembly or do not require any direct interface with the handle body  151  of the hand-held beverage dispenser  150 , presents relatively few challenges in implementation of the mixer assembly removability arrangement, providing for efficient yet reliable attachment of any post-mix type drink dispenser assembly to a hand-held beverage dispenser can be difficult under any circumstance. Providing a hand-held beverage dispenser with an efficient and reliable attachment interface conforming to an off-the-shelf post-mix type drink dispenser assembly is exceptionally challenging. In order to take advantage of manufacturer experience in achieving leak and other trouble free attachment of a post-mix type drink dispenser assembly, or a product line of post-mix type drink dispenser assemblies, with minimal, if any, modification of the post-mix type drink dispenser assembly and ever cognizant of the need to adhere to the previously detailed general constraints for implementation of a commercially suitable hand-held beverage dispenser  150 , which address such matters as size, mass, comfort in hand, ease of use and maintenance, safety and reliability, Applicant has determined that securement of the post-mix type drink dispenser assembly  104  from the top  152  of the handle body  151  is most desirable. 
     As particularly shown in  FIGS.  76 ,  103  and  143   , however, the previously described interior space  350  at the forward end  156  of the handle body  151 , and at the bottom of which is located the previously described toe plate  364 , is, like all other spaces substantially within the extents of the handle body  151 , nearly fully occupied by elements of the previously described piping system  158  for the hand-held beverage dispenser  150 . As shown in the figures, each of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for all diluents run horizontally into the interior space  350 , and then vertically downward to interface as previously described with the toe plate  364 . As should be clear from the prior detailed descriptions of various aspects of the piping system  158 , the respective points of entry to the interior space  350  of each of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for all diluents is largely predetermined by the needs to accommodate the previously described interfacing with the valve units  177   a - 177   j  within the limited extents of the handle body  151 . Additionally, as has been described herein, the respective points of interface with the toe plate  364  of each of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for all diluents, as well as the size and to some extent shape of the toe plate  364 , are largely determined by arrangement about the top of a compatible mixer assembly  105  of beverage component inlets, as well as the size and shape of the mixer assembly  105 . 
     As a result of the foregoing parameters, the ability to modify the implemented routing through the interior space  350  of each of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for all diluents, without expanding the extents of the handle body  151 , is very limited at best. Correspondingly, the ability to combine or otherwise rearrange unused area at the top side  365  of the toe plate  364  is likewise very limited at best. As particularly shown in  FIG.  141   , the top  107  of the first stage body  106  of the mixer assembly  105  of the implemented post-mix type drink dispenser assembly  104  comprises a plurality of tapped holes  130  for dependently affixing the mixer assembly  105  to a beverage dispenser, each of which is longitudinally oriented parallel to the longitudinal axis  140  through the mixer assembly  105 . Utilizing these manufacturer provided features, in accordance with the most preferred implementation of the mixer assembly removability arrangement of the present invention, machine screws of the correct thread size must be inserted, in alignment with the longitudinal axis of each tapped hole  130 , from within the interior space  350 , through the toe plate  364  and into each of the tapped holes  130  to a specified insertion depth, notwithstanding the above described limited unused area at the top side  365  of the toe plate  364 , and the general difficulty of physically reaching any unused area at the top side  365  of the toe plate  364  as barricaded by the previously described routing of the beverage product dispensing conduits  173   a - 173   h  and the common trunk  171  for all diluents. 
     In addition to the foregoing obstacles to securing the post-mix type drink dispenser assembly  104  from the top  152  of the handle body  151 , it is noted that securement from the top  152  not only requires an opening  351  to the interior space  350 , but also provision of the previously mentioned cover  352  for the opening  351 . Additionally, the cover  352  must be readily removable, yet secure in use, presenting the further obstacle that attachment hardware must be provided as well as appropriate structures within the interior space  350  for engagement of the hardware. Furthermore, the cover  352  must be accommodated at the depicted steep slope in order to avoid adding to the extents of the handle body  151 . Locating the cover  352 , for example at the forward end  156  or along a side  155  of the handle body  151  are also impracticable, as such access would fail to provide access for a screwdriver or like tool, along the longitudinal axis of each previously described tapped hole  130  for the mixer assembly  105 . Notwithstanding each of these obstacles to securement of the post-mix type drink dispenser assembly  104  from the top  152  of the handle body  151 , Applicant has implemented a novel and inventive mixer assembly removability arrangement enabling the desired functionality. 
     As best shown in  FIGS.  136 - 137  and  142 - 143   , a preferred implementation of the mixer assembly removability arrangement of the present invention generally comprises a specially formed cover  352  for opening  351  to the previously described interior space  350  of the handle body  151  of the hand-held beverage dispenser  150 , and a plurality of specially formed upwardly projecting mounting bosses  366  disposed about the top side  365 , within the interior space  350 , of a toe plate  364  forming in substantial part the bottom of the interior space  350 , as particularly shown in  FIG.  143   . As particularly shown in  FIG.  140   , a plurality of clearance holes  369  is formed through the toe plate  364 , and aligned and arranged about the toe plate  364  complementary to the arrangement of the previously described tapped holes  130  about the top  107  of the first stage body  106  of the mixer assembly  105  of the implemented post-mix type drink dispenser assembly  104 . Each of the upwardly projecting mounting bosses  366  disposed about the top side  365  of the toe plate  364  is, more particularly, positioned about the top side  365  of the toe plate  364  in longitudinal alignment with one of the clearance holes  369  through the toe plate  364 . 
     As shown in  FIG.  143   , a counterbore  368  is formed or otherwise provided in the top end  367  of each of the preferably cylindrical upwardly projecting mounting bosses  366 . As also shown in the figure, a corresponding one of the previously described clearance holes  369  through the toe plate  364  extends through each upwardly projecting mounting boss  366  to form a shoulder  370  at the bottom of the counterbore  368 . As shown  FIGS.  140  and  143   , the shoulder  370  defines the first end clearance hole  369 , which runs through the bottom of the upwardly projecting mounting boss  366  at the top side  365  of the toe plate  364 , and continues through the toe plate  364  where the bottom end  139  of the clearance hole  369  emerges at the bottom side  371  of the toe plate  364 . 
     As shown in  FIGS.  136 - 137  and  142   , each previously mentioned specially formed cover  352  comprises a top, exterior face  353  and a bottom, interior face  355 . As particularly shown in  FIG.  136   , a plurality of cylindrical hardware recesses  354  is formed through the top, exterior face  353  of the cover  352 . Importantly, each of the cylindrical hardware recesses  354  is longitudinally oriented parallel to the longitudinal axis  140  through the mixer assembly  105 . As shown in  FIGS.  137  and  142   , a downwardly projecting mounting boss  356  is formed or otherwise provided from the bottom, interior face  355  of the cover, each downwardly projecting mounting boss  356  being longitudinally aligned with a corresponding one of the hardware recesses  354 . As shown in  FIG.  142   , each of the hardware recesses  354  comprises a counterbore  357  having an interior diameter slightly larger than the head diameter of each of the machine screws  363 , as will be better understood further herein, specified for the mixer assembly removability arrangement. A centrally aligned clearance hole  358  originates at the bottom of the counterbore  357 , thereby forming an interior shoulder  359  at the bottom of the counterbore  357 , and runs through the lower extent of the downwardly projecting mounting boss  356 . An exterior shoulder  361  is formed or otherwise provided at the bottom end  360  of the downwardly projecting mounting boss  356 , thereby forming a tubular insert  362 . 
     Finally, the clearance hole  358  running through each downwardly projecting mounting boss  356  should be of equal diameter to that of the clearance hole  369  running through each upwardly projecting mounting boss  366 , and which diameter should be slightly larger than the diameter of the major threads of the machine screws  363  specified for the mixer assembly removability arrangement. Additionally, the outer diameter of each tubular insert  362  at the bottom end  360  of each downwardly projecting mounting boss  356  should be slightly less than the diameter of the counterbore  357  into each upwardly projecting mounting boss  366 , and the length of the tubular insert  362  at the bottom end  360  of each downwardly projecting mounting boss  356  should be slightly less than the depth of the counterbore  357  into each upwardly projecting mounting boss  366 . Finally, the outer diameter of each downwardly projecting mounting boss  356  should be coextensive with the outer diameter of each upwardly projecting mounting boss  366 . 
     In use of the mixer assembly removability arrangement for firmly securing in place the mixer assembly  105  as partially inserted into the cavity  141  and pressed snugly against the rubber seal  133 , the specially formed cover  352  is set in place over and about the opening  351  to the interior space  350 . As the cover  352  is set in place, it is noted that the tubular insert  362  at the bottom end  360  of each downwardly projecting mounting boss  356  will be received within the counterbore  357  into each corresponding upwardly projecting mounting boss  366 . 
     At this juncture, it is noted that the lengths of each downwardly projecting mounting boss  356  and each corresponding upwardly projecting mounting boss  366  are most preferably implemented such that each tubular insert  362  is fully engaged within the corresponding counterbore  357 , and, of greater importance, each interior shoulder  359  formed in the downwardly projecting mounting bosses  356  lies in a single plane P 31  transverse to the longitudinal axis  140  through the mixer assembly  105 , as attached to the handle body  151 . As will in light of this exemplary description be understood by those of ordinary skill in the relevant arts, the described arrangement enables specification of a single length for each machine screw  363  for use in the mixer assembly removability arrangement. 
     In any case, the machine screws  363  are then inserted through the hardware recesses  354  at the top, exterior face  353  of the cover  352 . Each set of end-to-end combined clearance holes  358 ,  369  provides a channel completely through the handle body  151 , the bottom of which is aligned adjacent with and directly over a corresponding one of the tapped holes  130  about the top  107  of the first stage body  106  of the mixer assembly  105 . With the mixer assembly  105  manually supported as necessary, the machine screws  363  are tightened as specified for the mixer assembly removability arrangement, compressing the rubber seal  133  operatively between the top  107  of the first stage body  106  of the mixer assembly  105  and the bottom side  371  of the toe plate  364 . 
     As will be appreciated by those of ordinary skill in the relevant arts, the inventive mixer assembly removability arrangement provides for simple removal or attachment of a post-mix type drink dispenser assembly from or to a hand-held beverage dispenser. Additionally, the inventive mixer assembly removability arrangement enables the use of commercially available off-the-shelf and similar integrations in implementing a post-mix type drink dispenser assembly  104  for the hand-held beverage dispenser  150 . Still further, the inventive mixer assembly removability arrangement meets each object of the invention without any need for attachment collars or other interfaces, which would add very undesirable weight and bulkiness to the hand-held beverage dispenser  150 , and also avoids the introduction of mounting hardware and the like to any part of the hand-held beverage dispenser  150  that in use is placed over and about a beverage vessel receiving a post-mix beverage, thereby eliminating the possibility of such hardware loosening and falling into a beverage vessel. 
     Turning now to  FIGS.  144 - 168   , an inventive connector assembly  350  as may be implemented in the second embodiment of the hand-held beverage dispenser  150 , the previously described first embodiment of the hand-held beverage dispenser  10  or many other hand-held beverage dispensers, is usefully employed to facilitate establishing connection with a flow control assembly. Flow control assemblies suitable for supplying flow regulated pressurized fluids to the second embodiment of the hand-held beverage dispenser  150  of the present invention, as well as other hand-held beverage dispensers, are readily commercially available. As previously discussed, the widely available flow control assemblies supply flow regulated pressurized fluids for hand-held beverage dispensers through individual fluid lines—one fluid line for each beverage product, diluent, or any other fluid to be supplied to the hand-held beverage dispensers. In particular and with reference to the second embodiment of the of the hand-held beverage dispenser  150  as previously described in detail, individual fluid lines from a flow control assembly are typically collected within an elongate tubular sheath, which conducts the fluid lines to the point of use of the hand-held beverage dispenser  150 . At the distal end of the sheath, at the point of use of the hand-held beverage dispenser  150 , each fluid line from the flow control assembly is terminated with a connector sized, shaped and otherwise adapted to provide a fluid-tight interface between each fluid line and a corresponding one of the fluid inlets  159  disposed at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 . As generally implemented, however, a separate provision must be made for fixing the individual connectors in place within each respective corresponding inlet. 
     As will be appreciated by those of ordinary skill in the relevant arts, the hand-held beverage dispenser  150  is capable of receiving fluids from a multiplicity of fluid lines, as is typical of hand-held beverage dispensers. Additionally, those of ordinary skill in the relevant arts will also appreciate that the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150  affords limited space for arranging the provided fluid inlets  159 . To be sure, limiting the size of the hand-held beverage dispenser  150  remains an important objective notwithstanding the desire to implement such additional inventive functionality as herein previously disclosed. In any case, making the required connections under the current state of the art is often tedious. What is more, however, in service installation where, due to unusual routing or shortage of spare fluid line assemblies, or any other reason, the hand-held beverage dispenser must be replaced independently of an otherwise previously attached the fluid line assembly, this tedious task must be repeated any time a different hand-held beverage dispenser is to be used at the service station, as may well be required during use for beverage service, for example in the event of a malfunctioning hand-held beverage dispenser, in addition to routine removal for deep cleaning or other maintenance. 
     Referring now to  FIGS.  144 - 168   , a novel and inventive connector assembly  400  for efficiently connecting a plurality of fluid line fittings to a hand-held beverage dispenser is shown and described. As shown in the figures and in  FIGS.  144 - 149    in particular, the connector assembly  400  generally comprises a specially formed heel plate  401  and cooperatively adapted clamshell housing assembly  408  constructed or otherwise formed of an upper housing member  413  and a lower housing member  422 , as will be better understood further herein. As also will be better understood further herein, the connector assembly  400  is adapted to simultaneously secure a multiplicity of individual fluid lines from a flow control assembly in fluid communication with the fluid inlets of a hand-held beverage dispenser. As particularly shown in  FIG.  144   , which includes the second embodiment of the of the previously detailed hand-held beverage dispenser  150  as an exemplary hand-held beverage dispenser for use with the inventive connector assembly  400 , the invention of the connector assembly  400  contemplates a simple “plug-in” type connection of an otherwise typical fluid line assembly  375  to an otherwise typical hand-held beverage dispenser, such as represented by Applicant&#39;s otherwise inventive hand-held beverage dispenser  150 . In particular, the connector assembly  400  provides substantially simultaneous “plug-in” type connection of each of a multiplicity of barbed quick connect fittings  385 , or similarly capable fittings or like connectors, to a multiplicity of fluid inlets  159  conventionally located at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , thereby substantially simultaneously placing each of a corresponding multiplicity of individual fluid lines  381  running through the fluid line assembly  375  in fluid communication with the fluid inlets  159  of the hand-held beverage dispenser  150 . Additionally, however, the invention of the connector assembly  400  contemplates a simple securement through which each of the individual barbed quick connect fittings  385 , or like connectors, is substantially simultaneously fixed securely in place within each respective corresponding inlet fluid  159  of the hand-held beverage dispenser  150 . To this end, as will be better understood further herein, the connector assembly  400  further inventively includes a clamshell housing assembly  408 , as is also particularly shown in  FIGS.  144 - 149   . 
     A typical barbed quick connect fitting  385  as is well known by those of ordinary skill in the relevant arts for conventional use in terminating and connecting such fluid lines is particularly shown  FIGS.  150 - 152   . As shown in  FIGS.  150 - 152   , the typically used barbed quick connect fitting  385  comprises a generally cylindrical body  386  having a male barbed connector  388  at a first end  387  thereof. As will be better understood further herein, each male barbed connector  388  is sized for connection with the distal ends  383  of the individual fluid lines  381  from the flow control assembly, as shown in  FIGS.  155 - 160   . The typical barbed quick connect fitting  385  also has a male quick connector  390  at a second end  389  thereof. Additionally, however, a provision  391  is made for, and the male quick connector  390  also includes, one or more circumferential seals, such as O-rings  393  or like seals. As will also be better understood further herein, each male quick connector  390  is sized for insertion within fluid inlet ports  310  about the fluid inlets  159  at the rear end  157  of the handle body  151  of a hand-held beverage dispenser, as represented by the exemplary hand-held beverage dispenser  150 , as particularly shown in  FIG.  161    and otherwise herein previously described in detail. In any case, an open flow path  392  is longitudinally provided from the first end  387  to the second end  389  through the cylindrical body  386 . 
     Referring again to  FIGS.  145 - 149   , the specially formed heel plate  401  comprises a preferably generally planar rear face  402 , which in use of the connector assembly  400  faces away from the rear end  157  of the handle body  151 , and a preferably generally planar front face  403  facing the rear end  157  of the handle body  151 , which in use of the connector assembly  400  faces the rear end  157  of the handle body  151 . A multiplicity of specially formed tapered connector holes  404  are formed or otherwise provided through the heel plate  401 , each of which comprises a first circular opening  405  at the rear face  402  of the heel plate  401  and a second circular opening  406  at the front face  403  of the heel plate  401 . The first circular opening  405  and the second circular opening  406  are concentrically formed about the longitudinal axis through the connector hole  404 , and the first circular opening  406  has a diameter operably less than the diameter of the second circular opening  406 , as will be better understood further herein. Additionally, the heel plate  401  comprises a plurality of clearance holes  407  corresponding to a plurality of tapped or otherwise threaded holes  311  provided at the rear end  157  of the handle body  151  of a hand-held beverage dispenser  150 . As will be better understood further herein, each of the clearance holes  407  through the heel plate  401  is sized for free passage of the major threads of machine screws  429  or the equivalent part of implemented mounting hardware. 
     As previously generally described in the previously presented detailed description of the exemplary hand-held beverage dispenser  150 , a multiplicity of individual fluid lines  381  conduct various beverage fluids from a flow control assembly to the hand-held beverage dispenser  150  for mixing and dispensing as desired. As particularly shown for example in  FIGS.  153 - 154   , the multiplicity of fluid lines  381  are conventionally contained within an elongate tubular sheath  376  to form a sheathed fluid line assembly  375 . The distal end  383  from the flow control assembly of each individual fluid line  381  protrudes a short distance from the distal end  379  of the elongate tubular sheath  376 . In use of the present invention, the male barbed connector  388  of a barbed quick connect fitting  385  must be connected in fluid communication to the accessible distal end  383  of each individual fluid line  381 . As shown in  FIGS.  153 - 160   , however, in implementation of the connector assembly  400  of the present invention the previously described heel plate  401  is interposed between the distal end  379  of the of the sheath  376  of the fluid line assembly  375  and the distal end  383  of each individual fluid line  381  as the barbed quick connect fittings  385  are connected to the fluid lines  381 . 
     To begin connection of the barbed quick connect fittings  385  to the distal ends  383  of the individual fluid lines  381 , the heel plate  401  is first oriented with the rear face  402  of the heel plate  401  facing the individual fluid lines  381  protruding from the distal end  379  of the sheath  376 , as shown in  FIG.  153   . The distal end  383  of a selected one  384  of the individual fluid lines  381  is then inserted through the first circular opening  405  to a tapered connector hole  404  at the rear face  402  of the heel plate  401 , and through the tapered connector hole  404  to project from the second circular opening  406  the tapered connector hole  404  at the front face  403  of the heel plate  401 , as shown in  FIGS.  153 - 155   . The male barbed connector  388  of a barbed quick connect fitting  385  is then inserted into the distal end  383  of the selected one  384  of the individual fluid lines  381 , leaving substantially only the male quick connector  388  of the connected barbed quick connect fitting  385  to project form the distal end  383  of the selected one  384  of the individual fluid lines  381 , as shown in  FIGS.  156 - 157   . As shown in  FIGS.  157 - 159   , the male barbed connector  388  of connected barbed quick connect fitting  385  is then forced through the second circular opening  406  into the tapered connector hole  404 , allowing the individual fluid line  381  to retreat as necessary. As previously noted, each tapered connector hole  404  operatively decreases in diameter from the front face  403  to the rear face  402  of the heel plate  401 , such that the distal end  383  of the selected one  384  of the individual fluid lines  381  is securely clamped about the male barbed connector  388 , and each are frictionally secured within the tapered connector hole  404 . This process, which may be conducted in parallel, is applied for each of the individual fluid lines  381 , as shown in  FIG.  160   . 
     With the heel plate  401  affixed to the distal ends  383  of the individual fluid lines, as shown in  FIG.  160   , the male barbed connector  388  of each of the multiplicity of dependently supported and arranged barbed quick connect fittings  385  is simultaneously inserted into a corresponding one of the previously described fluid inlet ports  310  at the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 , as shown in  FIGS.  161 - 163   . At this juncture, all of the individual fluid lines  381  are in fluid communication with a corresponding one of the fluid inlets  159  to the handle body, but are not secured in place. To this end, the connector assembly  400  of the present invention comprises the previously noted clamshell housing assembly  408 , as shown in  FIG.  164   , which is cooperatively adapted with the heel plate  401  to simultaneously affix each inserted male quick connector  309  securely in place within the corresponding fluid inlet port  310 . 
     As shown in  FIGS.  164 - 165  and  168   , mating together of the upper housing member  413  and the lower housing member  422  of the clamshell housing assembly  408  cooperatively forms a rear wall  409  implementing a generally cylindrical fluid line retainer  410 . As will be better understood further herein, a first clamping member  415  formed at the rear end  414  of the upper housing member  413  implements part of the cylindrical fluid line retainer  410 , and a second clamping member  424  formed at the rear end  423  of the lower housing member  422  implements the remaining part the cylindrical fluid line retainer  410 . As implemented in accordance with the preferred embodiment of the present invention, the cylindrical fluid line retainer  410  is sized, shaped and otherwise adapted to clamp about the circumference of the distal end  379  of the sheath  376  of the fluid line assembly  375 . 
     To this end, the first clamping member  415  formed in the rear end  414  of the upper housing member  413  has a sufficient wall thickness and is otherwise adapted to produce a first clamping face  416  for engaging a first fraction of the circumference about the distal end  379  of the sheath  376  of the fluid line assembly  375 . Likewise, the second clamping member  424  formed in the rear end  423  of the lower housing member  422  has a sufficient wall thickness and is otherwise adapted to produce a second clamping face  425  for engaging a remaining second fraction of the circumference about the distal end  379  of the sheath  376  of the fluid line assembly  375 . As will in light of this exemplary description be appreciated by those of ordinary skill in the relevant arts, the vertical location of the of the fluid line assembly  375  through the cooperatively formed rear wall  409  of clamshell housing assembly  408 , with respect to the junction of the mated together upper housing member  413  and lower housing member  422 , will determine what part of the fluid line assembly retainer  410  is formed in the upper housing member  413  and what remaining part of the fluid line assembly retainer  410  is formed in the lower housing member  422 . 
     In addition to implementing the fluid line assembly retainer  410 , as heretofore described, the cooperatively formed clamshell housing assembly  408  also implements means for securing the heel plate  401 , and thus each male quick connector  309 , operably in place adjacent the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150 . Specifically, as shown in  FIGS.  147 - 148  and  164 - 167   , a plurality of upper heel plate retention members  417  is formed or otherwise provided partially along a respective one of the interior corners of the upper housing member  413 . As shown in the figures, each upper heel plate retention member  417  may be formed as an elongate driver body extending from the interior  412  side of the rear wall  409  of clamshell housing assembly  408  to a planar face  418  formed at the front end of the upper heel plate retention member  417 . As will be better understood further herein, the planar face  418  of each upper heel plate retention member  417  is most preferably located at a single established distance from the rear wall  409  of the clamshell housing assembly  408 , and is otherwise adapted to operably engage the rear face  402  of the specially formed heel plate  401  in use of the connector assembly  400 . As also shown in  FIGS.  147 - 148  and  164 - 167   , each upper heel plate retention member  417  comprises a clearance hole  419  running longitudinally through the driver body from the rear face  411  of the cooperatively formed rear wall  409  of the clamshell housing assembly  408  and through the planar face  418  at the front end of the upper heel plate retention member  417 . Like the clearance holes  407  through the specially formed heel plate  401  as heretofore described, each clearance hole  419  provided through the upper heel plate retention members  417  is sized for free passage of the major threads of the machine screws  429  or the equivalent part of the implemented mounting hardware. 
     Likewise, the figures also shows a lower heel plate retention member  426  formed or otherwise provided partially along the center of the lower housing member  422 . Like the upper heel plate retention members  417 , the heel plate retention member  426  may be formed as an elongate driver body extending from the interior  412  side of the rear wall  409  of clamshell housing assembly  408  to a planar face  427  formed at the front end of the lower heel plate retention member  427 . The planar face  427  of the lower heel plate retention member  426  is most preferably located at the same distance from the rear wall  409  of the clamshell housing assembly  408  as is located the planar faces  418  of the upper heel plate retention members  417  of the upper housing member  413 , and is otherwise adapted to operably engage the rear face  402  of the specially formed heel plate  401  in use of the connector assembly  400 . As also shown in  FIGS.  147 - 148  and  164 - 167   , the lower heel plate retention member  426  comprises a clearance hole  428  running longitudinally through the driver body from the rear face  411  of the cooperatively formed rear wall  409  of the clamshell housing assembly  408  and through the planar face  427  at the front end of the lower heel plate retention member  426 . Like the other clearance holes as heretofore described, the clearance hole  428  provided through the lower heel plate retention member  426  is sized for free passage of the major threads of the machine screws  429  or the equivalent part of the implemented mounting hardware. 
     In addition clamping about the distal end  379  of the of the sheath  376  of the fluid line assembly  375  while also simultaneously applying securing force to the rear face  402  of the specially formed heel plate  401 , the most preferred implementations of the connector assembly  400  of the present invention also capture at least a portion of the flange  380  typically provided at the distal end  379  of the tubular sheath  376  of the fluid line assembly  375 , and as shown for example in  FIGS.  161  and  163   . To this end and as particularly shown in  FIGS.  147  and  166 - 167   , the fluid line assembly retainer  410  additionally includes a vertical wall  420  formed between the upper heel plate retention members  417  adjacent to the interior side  412  of the rear wall  409  of the clamshell housing assembly  408 . As shown in the figures, vertical wall  420  provided or otherwise formed as described, implements—as a feature of fluid line assembly retainer  410 — a narrow slot  421  along the interior side  412  of the rear wall  409  of the clamshell housing assembly  408 , which is sized, shaped and otherwise adapted to capture a portion of a flange  380  provided at the distal end  379  of the tubular sheath  376  of the fluid line assembly  375 . 
     As shown in  FIGS.  164 - 165  and  168   , the heel plate  401 , and thus each male quick connector  309 , are secured operably in place adjacent the rear end  157  of the handle body  151  of the hand-held beverage dispenser  150  by mating together—and about the specially formed heel plate  401  and the distal end  379  of the tubular sheath  376  of the fluid line assembly  375 — the upper housing member  413  and the lower housing member  422 . As the upper housing member  413  and the lower housing member  422  are mated together, the planar face  418  of each upper heel plate retention member  417  and the planar face  427  of the lower heel plate retention member  426  each come into position adjacent the rear face  402  of the specially formed heel plate  401 . Simultaneously, the first clamping face  416  of the first clamping member  415  formed in the rear end  414  of the upper housing member  413  engages a first fraction of the circumference about the distal end  379  of the sheath  376  of the fluid line assembly  375 , and the second clamping face  425  of the second clamping member  424  formed in the rear end  423  of the lower housing member  422  engages a remaining second fraction of the circumference about the distal end  379  of the sheath  376  of the fluid line assembly  375 , while a portion of the flange  380  provided at the distal end  379  of the tubular sheath  376  of the fluid line assembly  375  is captured within the slot  421  formed along the interior side  412  of the rear wall  409  of the clamshell housing assembly  408 . 
     The provided machine screws  429  are then inserted through the clearance holes  407  through the specially formed heel plate  401  and either a clearance hole  419  provided through one of the upper heel plate retention members  417  or the clearance hole  428  provided through the lower heel plate retention member  426 , and finally operably engaged with one of the tapped or otherwise threaded holes  311  provided at the rear end  157  of the handle body  151  of a hand-held beverage dispenser  150 , as shown in  FIG.  168   . With the machine screws  429  operably engaged in the tapped holes  311 , the specially formed heel plate  401  securely retains each male quick connector  309  operably within a corresponding fluid inlet port  310  of the hand-held beverage dispenser  150 . Simultaneously, the implemented fluid line assembly retainer  410  supports the distal end  379  of the sheath  376  of the fluid line assembly  375 , thereby preventing stress or strain on the individual fluid lines  381  from an upstream flow control assembly. 
     Turning now to  FIGS.  169 - 188   , an inventive flow control assembly  450  as may be utilized in connection with the previously described first embodiment of the hand-held beverage dispenser  10 , the previously described second embodiment of the hand-held beverage dispenser  150 , or many other hand-held beverage dispensers is shown and described. With particular reference now to  FIGS.  169 - 170   , a preferred implementation of the flow control assembly  450  of the present invention comprises and is implemented about a highly compact assembly body  452  unitarily forming interconnected sets of valve bodies and a 10-station fluid line junction block, as will be better understood further herein, and which is specially adapted to operate in connection with an independently inventive specially adapted fluid line connector assembly  527 , and also will be better understood further herein. As will be better understood herein, the assembly body is inventively implemented to be ultra-compact, yet susceptible to efficient manufacture by injection molding or the like. To facilitate use of the ultra-compact assembly body  452 , the assembly body also specially forms a multi-port receptacle compatible with a multi-fitting plug formed by the fluid line connector assembly  527 , as will also be better understood further herein. 
     As shown in the figures, a mounting plate  520  may be utilized to facilitate affixing the flow control assembly  450  to the undersurface  526  or other suitable mounting location of a counter  525  or like structure. To this end and as particularly shown in  FIG.  173   , clearance holes  455  are provided through flanges  454  extending from the top side  453  of the assembly body  452  for mounting the assembly body  452  to the mounting plate  520 , as will be better understood further herein. A splash cover  556 , which may be snap-fit or otherwise conventionally attached about the bottom side  456  and rear end  462  of the assembly body  452  as is shown in the figures, is also preferably provided. 
     As particularly shown in  FIG.  172   , the sets of valve bodies unitarily implemented in the assembly body  452  include ON-OFF flow control valve bodies  489  and regulated flow control valve bodies  495 . In realization of the desired ultra-compact form for the assembly body  452 , the set of ON-OFF flow control valve bodies  489  are dual ranked in the assembly body  452 , a first subset of the ON-OFF flow control valve bodies  489  being arranged in an outer rank  490  and a second subset of the ON-OFF flow control valve bodies  489  being arranged in an inner rank  491 . Likewise, the regulated flow control valve bodies  495  are also dual ranked in the assembly body  452 , a first subset of the regulated flow control valve bodies  495  being arranged in an outer rank  496  and a second subset of the regulated flow control valve bodies  495  being arranged in an inner rank  497 . 
     As shown in  FIGS.  172 - 177   , the unitarily implemented 10-station fluid line junction block of the assembly body  452  comprises ten inlet ports  463  at the rear end  462  of the assembly body  452  and a corresponding ten outlet ports  479  at the front end  474  of the assembly body  452 . As will be better understood further herein, each of the inlet ports  463  provides for connection of a conventional barbed quick connect fitting  398  of a fluid line from a source of pressurized fluid, such as a source of a pressurized beverage product or diluent, as are all well known in the relevant arts. As also will be better understood further herein, each of the outlet ports  479  provides for connection of a conventional barbed quick connect fitting  394  of an individual fluid line  381  for supplying pressurized fluids, such as a pressurized beverage product or diluent, to a hand-held beverage dispenser  150 , as are all well known in the relevant arts, the flow of the supplied pressurized fluids however being regulated by the flow control assembly  450  of the present invention. In any case, it is noted that while the exemplary implementation of the flow control assembly  450  implements 10-station fluid line junction block, more or fewer stations may be provided as may be desired for any particular implementation. 
     As particularly shown in  FIGS.  176 - 177   , each ON-OFF flow control valve body  489  comprises a generally cylindrical chamber  492  having an inlet port  493  thereto and an outlet port  494  therefrom. In the preferred exemplary implementation of the flow control assembly  450  as now shown and described, an ON-OFF flow control valve orifice  457  into the cylindrical chamber  492  of each ON-OFF flow control valve body  489  is provided through the bottom side  456  of the assembly body  452 , as shown in  FIG.  172   . As will be better understood further herein, the provided ON-OFF flow control valve orifices  457  provide access to the cylindrical chambers  492  of the ON-OFF flow control valve bodies  489  for introduction of the corresponding ON-OFF flow control valve trim assembly  502  and operation of the ON-OFF flow control valves  501 . As also shown in  FIG.  172   , tapped holes  458  are formed or otherwise provided about the ON-OFF flow control valve orifices  457  for engagement by corresponding retaining screws  557  as a retaining clip  507  described further herein is operatively positioned and attached about the introduced ON-OFF flow control valve trim assembly  502 . 
     Each regulated flow control valve body  495  comprises a generally cylindrical chamber  498  having an inlet port  499  thereto and an outlet port  500  therefrom. In the preferred exemplary implementation of the flow control assembly  450  as now shown and described, a regulated flow control valve orifice  459  into the cylindrical chamber  498  of each regulated flow control valve body  495  is provided through the bottom side  456  of the assembly body  452 , as shown in  FIG.  172   . As will be better understood further herein, the provided regulated flow control valve orifices  459  provide access to the cylindrical chambers  498  of the regulated flow control valve bodies  495  for introduction of the corresponding regulated flow control valve trim assembly  511  and adjustment of regulated flow control valves  510 . As also shown in  FIG.  172   , tapped holes  461  are formed or otherwise provided about the regulated flow control valve orifices  459  for engagement by corresponding retaining screws  558  as a retaining plate  514  described further herein is operatively positioned and attached about the introduced regulated flow control valve trim assembly  511 . Still further however, a plurality of notches  460  is also formed or otherwise provided about each of the regulated flow control valve orifices  459  to capture corresponding cooperatively adapted horizontally extending ears  513  formed on the regulated flow control valve trim assembly  511 . As will be better understood further herein, the cooperative arrangement of the horizontally extending ears  513  and the provided notches  460  fixes rotation of the regulated flow control valve trim assembly  511  to facilitate use of a flow adjustment socket  512  to adjust flow rate through the regulated flow control valve  510 . 
     As particularly shown in  FIGS.  176 - 177   , the implemented 10-station junction block provides a flow path through the assembly body  452  from each inlet port  463  at the rear end  462  of the assembly block  452  to a corresponding outlet port  479  at the front end  474  of the assembly block  452 . As shown in the figures, each inlet port  463  to the assembly block  452  is in open fluid communication through a corresponding inlet channel  473  with the inlet port  493  of each corresponding ON-OFF flow control valve body  489 . The outlet port  494  of each ON-OFF flow control valve body  489  is in open fluid communication through a corresponding inter-valve channel  488  with the inlet port  499  of each corresponding regulated flow control valve body  495 . Finally, each outlet port  500  from a regulated flow control valve body  495  is in open fluid communication through an outlet channel  477  with a corresponding outlet port  479  at the front end  474  of the assembly block  452 . As will in light of this exemplary description be appreciated by those of ordinary skill in the relevant arts, flow through the chamber  492  between the inlet port  493  and the outlet port  494  of an ON-OFF flow control valve body  489 , will in operation be dependent on the operable state of the implemented corresponding ON-OFF flow control valve  501 . Likewise, those of ordinary skill in the relevant arts will in light of this exemplary description also appreciate that the rate of flow through the through the chamber  498  between the inlet port  499  and the outlet port  500  of regulated flow control valve body  495  will in operation be dependent on the operable state of the implemented corresponding regulated flow control valve  510 . 
     As shown in  FIG.  177   , some of the outlet channels  477  between the outlet port  500  from a regulated flow control valve body  495  and a corresponding outlet port  479  at the front end  474  of the assembly block  452  are specially formed channels  478 . In particular and in contribution to the implementation of a compact structure for the assembly body  452 , the outlet channels  477  from the inner rank  497  of regulated flow control valve bodies  495  comprise specially formed channels  478  in partial implementation of a novel arrangement for routing outlet channels  477  from the inner rank  497  of regulated flow control valve bodies  477  through the outer rank  496  of regulated flow control valve bodies  495 . As best shown in  FIG.  175   , the specially formed channels  478  are formed or otherwise provided in the shape of a narrow vertical slot in order to pass between the valve bodies  495  of the outer rank  496 , which are preferably arranged one to another as closely as possible in order to realize the narrowest feasible width for the assembly body  452 . 
     As shown in  FIG.  175   , outer rank outlet ports  481 — those outlet ports  479  in fluid communication with outlet channels  477  from the outer rank  496  of regulated flow control valve bodies  495 — are implemented differently than are the inner rank outlet ports  480 —those outlet ports  479  in fluid communication with the specially formed channels  478  from the inner rank  497  of regulated flow control valve bodies  495 . In particular, the inner rank outlet ports  480  remain in their conventional cylindrical shape until they interface with the vertical slot shaped specially formed channels  478 . The outer rank outlet ports  481 , however, include flow constrictions  482  in further implementation of the novel arrangement for passing outlet channels  477  from the inner rank  497  of regulated flow control valve bodies  495  through the outer rank  496  of regulated flow control valve bodies  495 , in contribution to the implementation of compact structure for assembly body  452 . The flow constrictions  482  in the outer rank outlet ports  481  are sized, shaped and otherwise adapted to provide a flow rate from the outer rank outlet ports  481  commensurate with the flow rate from the inner rank outlet ports  480 , thereby facilitating provision of the specially formed channels  478 . 
     Referring now to  FIG.  178   , details of assembly about the assembly body  450  of the ON-OFF flow control valves  501  and the regulated flow control valves  510  are shown and described. As shown in the figure, the ON-OFF flow control valve trim assembly  502  generally comprises a unitary valve ball and control body  503 ; the ON-OFF flow control valve trim  505 , including a valve ball, O-rings or like and other seals, and the lower portion of the unitary valve ball and control body  503 ; and the ON-OFF control knob  506  unitarily formed by the unitary valve ball and control body  503 . For assembly of the ON-OFF flow control valve  501 , the ON-OFF flow control valve trim assembly  502  is first assembled together as indicated, and a substantially planar retaining clip  507  for securing the ON-OFF flow control valve trim assembly  502  operably in place within the ON-OFF flow control valve body  489  is prepositioned about a neck  504  of the unitary valve ball and control body  503 . The neck is formed between and delineates the ON-OFF flow control valve trim  505  and the unitary control knob  506 , and also provides a structure for operation of the retaining clip  507 , and as shown in the figure, the planar retaining clip  507  comprises an open throat  508  for engaging the neck  504  of the unitary valve ball and control body  503 . 
     With the retaining clip  507  prepositioned with the ON-OFF flow control valve trim assembly  502 , the ON-OFF flow control valve trim assembly  502  is inserted through the orifice  457  of an ON-OFF flow control valve body  489 . When the ON-OFF flow control valve trim assembly  502  is fully inserted in the ON-OFF flow control valve body  489 , the prepositioned retaining clip  507  will rest operably in place about the orifice  457  of the ON-OFF flow control valve body  489 , ready to be affixed to the bottom side  456  of the assembly body  452 . As shown in the figures, the retaining clip  507  comprises a plurality of clearance notches  509 . The notches  509  are sized, shaped and otherwise adapted to allow passage by the operably placed retaining clip  507  of the shanks, but not the heads, of retaining screws  557  as the retaining screws  557  are engaged with the corresponding tapped holes  458  formed about the corresponding ON-OFF flow control valve body  489  in the bottom side  456  of the assembly body  452 , thereby affixing the retaining clip  507  to the bottom side  456  of the assembly body  452  and the ON-OFF flow control valve trim assembly  502  operably in place to form an ON-OFF flow control valves  501 . 
     As also shown in  FIG.  178   , assembly of each regulated flow control valve  510  begins with insertion of the regulated flow control valve trim assembly  511  through the orifice  459  of and into a regulated flow control valve body  495 . During insertion of the flow control valve trim assembly  511 , however, the flow control valve trim assembly  511  should be oriented such that the horizontally extending ears  513  at the end of the flow control valve trim assembly  511  are captured by the notches  460  formed about the orifice  459  into regulated flow control valve body  495 . In this manner, the horizontally extending ears  513  and notches  460  are cooperatively adapted to fix rotation of inserted regulated flow control valve trim assembly  511 , thereby facilitating use of the flow adjustment socket  512 , as also shown at the end of the flow control valve trim assembly  511 , to adjust flow rate through the regulated flow control valve  510 . At this juncture it is noted that the depicted regulated flow control valve trim assembly  511  is of the typical type that is well known in the relevant arts for implementation of such flow control valves, and implementation of the flow control valve trim assembly  511 , as well as the details of integration of the flow control valve trim assembly  511  in formation of the regulated flow control valve  510 , are readily within the ordinary skill in the arts, as is implementation of a simple ON-OFF ball valve. In any case, the assembly concludes by placement of the depicted substantially planar retaining plate  514  operably in place about the orifice  459  of the regulated flow control valve body  495 , ready to be affixed to the bottom side  456  of the assembly body  452 . To this end, clearance holes  516  are provided about the retaining plate  514 , and retaining screws  558  are provided for engaging corresponding tapped holes  461 , thereby affixing the retaining plates  514  operably in place about the regulated flow control valve trim assembly  511 . 
     As previously noted, a conventional barbed quick connect fitting  398 , as is well known in the relevant arts, connects to each of the inlet ports  463  at the rear end  462  of the assembly body  452  for providing pressurized fluids, such as a pressurized beverage product or diluent, to the flow control assembly  450  of the present invention. To this end, the most preferred implementations of the present invention contemplate provision of simple securements for quickly but reliably affixing a standard fitting in place within each inlet port  463 . To this end, as particularly shown in  FIG.  179   , fluid line retaining clips  468  are provided for capturing a neck portion  399  of a conventional barbed quick connect fitting  398 . As shown in the figure, the fluid line retaining clip  468  comprises a clamping slot  469 , for selectively capturing the neck portion  399  of the conventional barbed quick connect fitting  398  as the barbed quick connect fitting  398  is operably inserted into an inlet port  463  at the rear end  462  of the assembly body  452 , as depicted in  FIG.  180   . Additionally, each fluid line retaining clip  468  comprises a tab  470  for manually operating the fluid line retaining clip  468 . 
     As shown in  FIG.  179   , and also  FIG.  172   , a slot  464  is formed about each provided inlet port  463  to the assembly body  452  for capturing and guiding a fluid line retaining clip  468 . As shown in the figure, a fluid line retaining clip  468  is first inserted into a clamping slot  464  through an open end  466 , as provided for each slot  464 . As also shown in the figures, tab stops  465  prevent passage of the tab  470  of an inserted fluid line retaining clip  468 , thereby preventing the fluid line retaining clip  468  from sliding through the slot  464 . As particularly shown in  FIG.  179   , notches  467  are formed in the edges about the open ends  466  of the slots  464 . Once all of the slots  464  are populated with a fluid line retaining clip  468 , a retaining wire  472 , or substantially equivalent structure, is press fit or similarly secured within the provided notches  467 . As shown the top side  453  up depiction of  FIG.  180   , the operably affixed retaining wire  472  prevents the operably placed fluid line retaining clips  468  from falling back through the otherwise open ends  466  of the slots  464 . As also shown in  FIG.  180   , a conventional barbed quick connect fitting  398  is quickly but reliably affixed within an inlet port  463  to the assembly body by manually operating the fluid line retaining clip  468  about the inlet port  463  by manipulating the tab  470  of the fluid line retaining clip  468  to allow passage of the end of the barbed quick connect fitting  398  through the clamping slot  469  of the fluid line retaining clip  468 , and then again manually operating the fluid line retaining clip  468  by manipulating the tab  470  to cause the clamping slot  469  to firmly engage about the neck  399  of the properly inserted barbed quick connect fitting  398 . 
     With the assembly body  452  now fully prepared for use in the flow control assembly  450  of the present invention,  FIG.  181    shows various details of the exemplary mounting plate  520 , as utilized in  FIGS.  169 - 170   , and illustrates attachment in use of the assembly body  452  to a mounting plate  520 . As shown in  FIG.  181   , the mounting plate  520  most preferably comprises a plurality of downwardly oriented threaded studs  522  for engaging the previously described clearance holes  455  through the flanges  454  extending from the top side  453  of the assembly body  452 . Because the mounting plate  520  will generally be flush mounted to the undersurface  526  or other suitable mounting location of a counter  525  or like structure, as shown in  FIGS.  169 - 170    before attachment of the assembly body  452 , the most preferred threaded studs  522  are press fit otherwise operably attached at through holes  521  provided about the mounting plate  520 . In any case, with the downwardly oriented threaded studs  522  fixed in place about the mounting plate  520 , the mounting plate  520  is attached to the undersurface  526  or other suitable mounting location of a counter  525  or like structure utilizing an appropriate number of screws or suitable hardware utilizing clearance holes  523  preferably liberally provided for selective use in otherwise conventionally attaching the mounting plate  522  to the undersurface  526  or other suitable mounting location of a counter  525  or like structure. Finally, the assembly body  452  is raised into engagement through the clearance holes  455  in the flanges  454 , and fixed in place, as shown in  FIGS.  169 - 170   , using cap nuts  517  or like attachment hardware corresponding to the threaded studs  522 . As shown in  FIGS.  169 - 170  and  181   , the mounting plate  520  may further be provided with a plurality of anchors  524  for tying off a fluid line support lanyard or the like as may be utilized to bear the weight of fluid lines from a source of pressurized fluid, such as a source of a pressurized beverage product or diluent. 
     As previously noted, the exemplary 10-station fluid line junction block, implemented within the assembly body  452  as previously described, is specially adapted to operate in connection with a specially adapted fluid line connector assembly  527 . As also previously described, the assembly body  452  is inventively implemented to be ultra-compact, and therefore a specially formed multi-port receptacle, as shown for example in  FIG.  174   , is implemented to be compatible with a multi-fitting plug formed by the fluid line connector assembly  527 , as will be better understood further herein. In this manner, connecting the individual fluid lines  381  for supplying pressurized fluids at regulated flow rates to a hand-held beverage dispenser  150  is greatly facilitated in the present invention notwithstanding that the working space for the typically tedious task is necessarily limited by the ultra-compact implementation of the assembly body  452 . 
     As particularly shown in  FIG.  171   , the specially formed multi-port receptacle is preferably implemented to comprise an upper guide member  483  and a lower guide member  485  for the fluid line connector assembly  527 . As will be better understood further herein, the upper guide member  483  most preferably includes stop notches  484  and the lower guide member  485  also preferably includes stop notches  486  for controlling the insertion depth of the fluid line connection assembly  527 . Finally, the lower guide member  485  additionally preferably includes an alignment notch for facilitating insertion of the fluid line connector assembly  527 . As shown in  FIG.  174   , the outlet ports  479  at the front end  474  of the assembly block  452  are arranged between the upper guide member  483  and the lower guide member  485 , and as will be better understood further herein the arrangement of the outlet ports  479  is specially established to be compatible with the arrangement of corresponding barbed quick connect fittings  394  of the individual fluid line  381  in fluid communication with the hand-held beverage dispenser  150 . 
     Referring now to  FIGS.  182 - 185   , the fluid line connector assembly  527 , which specially forms a multi-fitting plug compatible with the multi-port receptacle formed by the assembly body  452 , is shown to comprise a clamshell housing  528  including a top shell  529  and a bottom shell  540 . As shown in the figures, the top shell  528  comprises an interior  530  and an exterior  536 , and the bottom shell  540  comprises an interior  541  and an exterior  549 . As shown in  FIGS.  182 - 186   , a neck  531  in the interior  536  of the top shell  528  forms an upper passage member  532 , which is cooperatively adapted with a corresponding lower passage member  543  formed by a mating neck  542  in the interior  541  of the bottom shell  540  for passage into the interior space of the assembled clamshell housing  528  of the proximal ends  382  of individual fluid lines  381  extending from the proximal end  377  of the sheath  376  of a conventional sheathed fluid line assembly  375 . As also shown in  FIGS.  182 - 186   , an upper groove segment  533  formed in the upper passage member  532  is cooperatively adapted with a lower groove segment  544  formed in the lower passage member  543  for capturing the flange  378  about the proximal end  377  of the sheath  376  of the conventional sheathed fluid line assembly  375 . 
     Referring still to  FIGS.  182 - 186   , the top shell  529  comprises a mouth  534  formed in the interior  530  opposite the neck  531 , and the bottom shell  540  comprises a mouth  545  formed in the interior  541  opposite the neck  542 . As shown in the figures, the mouth  534  of the top shell  529  includes an upper clamping member  535  and the mouth  545  of the bottom shell  540  includes a lower clamping member  546  for each individual fluid line  381  of the sheathed fluid line assembly  375 . The provided upper clamping members  535  and the provided lower clamping members are cooperatively adapted  546  for capturing the neck portion  395  between a first shoulder  396  and a second shoulder  397  about a typical barbed quick connect fitting  394 , as is well known on the relevant arts for terminating the individual fluid lines  381  of a sheathed fluid line assembly  375  at an interface with a flow control assembly. Additionally, the interior  541  of the bottom shell  540  also includes a plurality of upwardly extending vertical walls  548  forming interior channels  547  through the clamshell housing  528 . As shown in the figures, the channels  547  are provided for splaying out and facilitating placement of the proximal ends  382  of the individual fluids lines  381  from the sheathed fluid line assembly  375 , thereby facilitating capture of the neck portions  395  of the barbed quick connect fittings  394  between the upper clamping members  535  formed in the top shell  529  and the lower clamping members  546  formed in the bottom shell  540 . 
     As shown in  FIGS.  182 - 186   , insertion stop wings  537  are formed about the exterior  536  of the top shell  529  and corresponding insertion stop wings  550  are formed about the exterior  549  of the bottom shell  540 . The insertion stop wings  537  of the top shell  529  are cooperatively adapted with the corresponding stop notches  484  formed in the upper guide member  483  of the assembly body  452  for controlling insertion depth of the fluid line connector assembly  527 . Likewise, the insertion stop wings  550  of the bottom shell  540  are cooperatively adapted with the corresponding stop notches  486  formed in the lower guide member  485  of the assembly body  452  for further controlling insertion depth of the fluid line connector assembly  527 . Additionally, the exterior  549  of the bottom shell  540  comprises an insertion alignment tab  551 , which is cooperatively adapted with the alignment notch  487  formed in the lower guide member  485  of the assembly body  452  for facilitating insertion of the fluid line connector assembly  527 . 
     Clearance holes  538  are provided through the top shell  529  and tapped holes  552  are provided in the bottom shell  540  for screws  554  used to affix the top shell  529  to the bottom shell  527  in final assembly of the clamshell housing  528  and fluid line connector assembly  527 , as shown in  FIGS.  182 - 186   . As also shown in the figures, clearance holes  539  are provided through the top shell  529  and clearance holes  553  are provided in the bottom shell  540  for screws  555  used to fix the fluid line connector assembly  527  operably in place with the assembly body  452  of the flow control assembly  450 . To this end and as particularly shown in  FIGS.  179 - 181   , tapped holes  475  and clearance holes  476  are also provided at the front end  474  of the assembly body  452  for attachment of the fluid line connector assembly  527 . 
     As shown in  FIGS.  186 - 187   , the fluid line connector assembly  527  is completed by conventional attachment of barbed quick connect fitting  394  to the proximal end  382  of each of the individual fluids lines  381  from the sheathed fluid line assembly  375 , as is well known in the relevant arts. With the individual fluids lines  381  conventionally prepared with typical barbed quick connect fittings  394 , the individual fluids lines  381  are splayed out as they are channelized within the interior channels  547  formed through the clamshell housing  528  by the upwardly extending vertical walls  548 , arranging the neck  395  of each barbed quick connect fitting  394  between pairs of corresponding  535  upper clamping members  535  formed in the top shell  529  and lower clamping members  546  formed in the bottom shell  540 . Screws  554  are then inserted through the clearance holes  538  in the top shell  529  and engaged with the tapped holes  552  in the bottom shell  527  to affix the top shell  529  to the bottom shell  527 , resulting in the finally assembled fluid line connector assembly  527 , as particularly shown in  FIG.  187   . 
     In use of the flow control assembly  450  of the present invention, the populated assembly body  452  is attached as typically desired to the undersurface  526  or other suitable mounting location of a counter  525  or like structure, as previously described with particular reference to  FIGS.  169 - 170   . As shown in  FIG.  188   , the assembled fluid line connector assembly  527  is then inserted between the upper guide member  483  and the lower guide member  485 , utilizing the insertion alignment tab  551  on the exterior  549  of the bottom shell  540  in connection with the alignment notch  487  in the lower guide member  485  to precisely align the barbed quick connect fittings  394  affixed in the fluid line connector assembly  527  with the corresponding outlet ports  479  at the front end  474  of the assembly body  452 . Once the barbed quick connect fittings  394  are properly seated within corresponding outlet ports  479 , as indicated by contact of the insertion stop wings  537  of the top shell  529  and the insertion stop wings  550  of the bottom shell  540  with corresponding stop notches  484  of the upper guide member  483  and the stop notches  486  of the lower guide member  485 , respectively, the fluid line connector assembly  527  is then secured in place. To this end and as shown in  FIG.  188   , screws  555  are inserted through the clearance holes  476  at the front end  474  of the assembly body  452 , through the clearance holes  573  in the bottom shell  540  of the fluid line connector assembly  527 , through the clearance holes  539  in the bottom shell  529  of the fluid line connector assembly  527 , and finally into engagement with the tapped holes  475  at the front end  474  of the assembly body  452 . 
     As then installed for use, a technician or other skilled user may then operate the ON-OFF control knobs  506  of the ON-OFF flow control valves  501  to enable fluid flow as desired through the flow control assembly  450  and also operate the flow adjustment socket  512  of the regulated flow control valves  510  to establish desired fluid flow rates through the flow control assembly  450 . This process is well known to those of ordinary skill in the art. In any case, once the ON-OFF flow control valves  501  and regulated flow control valves  510  are set or adjusted as required, the splash cover  556  snap-fit or otherwise conventionally attached about the bottom side  456  and rear end  462  of the assembly body  452 , as shown in  FIGS.  188  and  170   . At this juncture, the service industry employees making ultimate use of the flow control assembly  450  will generally have no operable interaction with the flow control assembly  450 , the only interaction typically being limited to removal or attachment of a fluid line connector assembly  527 , as previously described.