PATENT ABSTRACT
Hands free system providing user control and regulation of water flow and temperature mix using “foot actuated” devices. Hands free system is adaptable to pre-existing water faucets and conventional plumbing, enabling full integration of an adjustable foot operated device with conventional hand operated water faucets. The hand free water system includes a control state module for providing a user with BYPASS, ON, OFF, HOT and COLD modes of operation. Hardware can include a sealed chamber body adapted for containing a mixing ball valve and having chamber ports further serving as internal passages to channels adapted to said sealed chamber body for connection to water line tubing. The mixing ball can include delivery and exit ports through which water can enter and exit and is adapted for rotation in relation to the fixed chamber body for selective alignment with said chamber ports. A foot controllable actuator in operational connection with said mixing ball valve, wherein rotation of said mixing ball valve with said foot controllable actuator offer user over control water flow rate and temperature.

PATENT DESCRIPTION
APPLICATION PRIORITY  
       [0001]     This patent application is a divisional of U.S. patent application Ser. No. 10/456,085, filed Jun. 6, 2003, entitled “Systems and Methods Providing Hands Free Water Faucet Control”, which claims priority to U.S. Provisional Patent Application Ser. No. 60/461,922, filed Apr. 10, 2003, entitled “Systems and Methods Providing Hands Free Water Faucet Control”, and the specifications and claims thereof are hereby incorporated by reference. 
     
    
     TECHNICAL FIELD OF THE INVENTION  
       [0002]     The field of the present invention generally relates to systems and methods for controlling and regulating water flow and temperature mix using “hands free” devices in conjunction with conventional water faucets. The present invention more particularly relates to the integration of an adjustable foot operated device with conventional hand operated water faucets.  
       BACKGROUND OF THE INVENTION  
       [0003]     Traditional sinks and basins typically are equipped with “hand operated” faucets to provide a means of controlling flow rate and temperature mix of water used in a vast number of situations and applications. Flow rate and temperature mix adjustments require the use of the user&#39;s hands to manipulate faucet valves, or other mechanisms such as levers, or joysticks to control any desired output settings. In the use of conventional hand operated faucets, the single user must free, at minimum, one hand in order to manipulate the faucet control mechanism. This conventional use restricts the single user, in certain situations, full use of both hands to perform secondary operations while simultaneously controlling the faucet output.  
         [0004]     In applications that require full use of both hands, the single user is subject to an initial presetting of the faucet output controls to the desired setting. Meanwhile, during the adjustment phase, water is flowing continuously and for a period while the user prepares and engages in the secondary operation. For example, in initial conditions where both hands are contaminated and is undesirable to spread the contamination to the faucet controls, the single user must rely on secondary measures to manipulate conventional faucet valves and mechanisms to initiate the desired output. Similarly, in post conditions where both hands have been thoroughly scrubbed and free of contamination and is undesirable to contract any contamination by direct hand contact with the faucet controls, the single user must rely on secondary measures to shut off the faucet output.  
         [0005]     For the examples cited above, along with a vast number of similar applications, there is an increased interest in a “hands free” faucet control system. Currently, a number of “hands free” devices exist that are capable of being configured in-line or in series with existing supply lines to conventional faucets. Typically, “hands free” devices feature remote mechanical or electrical linkage control of activating the supply lines to conventional faucets. Some known methods of activation of “hands free” devices include direct foot pressure; body leaning against a plate or bar; use of proximity electronic sensor; voice activation system; and timer devices.  
         [0006]     The common control feature of known activation methods, however, is their dependence on a fixed preset condition of the conventional faucet for the delivery of the desired flow rate and temperature mix. As a result, the user must initially configure a conventional faucet to a predetermined flow rate and temperature mix setting, then assert the “hands free” activation device to deliver the output. Any adjustments to the flow rate and temperature mix, before or during operation, are manual and require use of hands to manipulate the conventional faucet controls, as before.  
         [0007]     The inconvenience of setting flow rates and temperature mixes prior, during, and possibly after an operation increase when requirements of an operation demand sequentially setting of different rates and mixes. Further complications arise when two or more users have access to the same delivery system and an individual assumes the status of the systems&#39; presets to be in accordance to their particular setting. An incorrect assumption, on the part of an individual on the present state of that system, may result in personnel or product safety issues. Furthermore, waste of clean water during the normal set-up of the initial conditions, plus the energy expended in the heating and possible conditioning of the water should also be a concern. Furthermore, the waste of clean water and energy resources only increases in a multi-user scenario.  
         [0008]     What is needed are effective means or methods to resolve the problem explained above so that a single user of a conventional faucet can readily configure a system to deliver a desired variable water rate and temperature mix via normal conventional “hand operated” controls and/or via a remote “hands free” control device. In conjunction with the selection of either mode of operation, the present state of the system output controls are always visible and accessible by the user throughout system operation. The present inventor has recognized that it would be advantageous to remedy the foregoing and other deficiencies in the prior art, and to facilitate the operation and production of a “hands free” control device by introducing and conforming to standard known methods and features used in existing water valves systems.  
       SUMMARY OF THE INVENTION  
       [0009]     The following summary of the invention is provided to facilitate an understanding of some of the innovative features unique to the present invention, and is not intended to be a full description. In accordance with one aspect of the invention, the recess or cavity for the installation of the mixing ball valve is in a fixed chamber component of the remote device and attached to the enclosure of the “hands free” device. The heart of the adjustment feature of the “hands free” control mechanism is the relationship and operation of the mixing ball valve with respect to a fixed chamber body. The mixing ball valve rotates in relation to the fixed body of the chamber and pivots about a keyed slot on the mixing ball valve and limited in rotation by a corresponding fixed orientation pin within the cavity of the chamber.  
         [0010]     Flow rate and temperature mixture is a function of the orientation of delivery and exit ports of the mixing ball valve relative to the chamber ports. Preferably, the “hands free” device employs a mixing ball valve of the open type, offering lateral delivery ports. That component in which the orientation for the mixing ball valve is predetermined features a peripheral area into which the delivery ports of the mixing ball valve and the exit ports of the chamber body communicate directly with an internal passage of the output channel.  
         [0011]     In accordance with a feature of the present, the flow of water in the operational mode is via standard plumbing interconnections. Using standard interconnections, cold and hot water supplies enter the mixing ball valve via the internal passages and ports within the chamber body and enter the ball valve via entrance ports on the ball valve, directly. To facilitate control and regulation of the rotating mixing ball valve, an extension to a fixed lever attached to the ball valve extends to the user in the form of a foot pedal. Delivery of the output mixture exits the mixing ball valve via an output port and through a corresponding internal passage within the chamber body. The chamber output channel features standard plumbing connections that interface to existing plumbing fixtures connecting the conventional faucet that presents the output mixture.  
         [0012]     In accordance with yet another feature of the present invention, the “hands free” device features a “BYPASS” state, which places the mixing ball valve&#39;s orientation in the maximum flow rate of hot water, only. Since the output channel of the chamber body assembly and mixing ball valve is in an in-line supply or series arrangement with the conventional faucet&#39;s corresponding “hot water” control valve, assertion of the “hands free” device in the “BYPASS” state provides a single source of supply of hot water to the conventional faucet. The cold water is in a constant supply or parallel arrangement to both the “cold water” input channel of the chamber body and to the conventional faucet&#39;s corresponding “cold water” control valve. The purpose of the “BYPASS” state, is to allow the user full “hand operated” control of the output via the conventional faucet control valves.  
         [0013]     In accordance with yet another feature of the present invention, to engage the “hands free” device, while in the “BYPASS” state, the user must manually adjust the conventional faucet&#39;s “hot water” valve to the desired maximum flow rate. Upon the manually setting of the desired flow rate, the user engages the “hands free” device by switching from the “BYPASS” state to any of the four states, “OFF”, “ON”, “HOT”, or “COLD”, by use of the foot pedal. The definition of the “OFF” state is the “hands free” device is in an operational mode and water output is shut-off. Similarly, in the “ON”, “HOT”, and “COLD” variable states, the “hands free” device is an operational mode and by use of the foot pedal, the user may vary the flow rate and temperature mix, accordingly.  
         [0014]     Also in accordance with addressing the limitations of the prior art, presented are new and improved methods of asserting and controlling the “hands free” device to regulate the flow rate and temperature mix. The present invention features a systematic and a straightforward approach to presetting the “hands free” device that are both ergonomic and economic. In addition to the benefits of the convenience of the “hands free” feature of the device, the ease of operation and cost of ownership are prime factors in the solution of reducing the waste of clean water and associated energy resources.  
         [0015]     In a preferred embodiment, a hands free system provides user control and regulation of water flow and temperature mix using “foot actuated” devices. The hands free system is preferably adaptable to pre-existing water faucets and conventional plumbing, enabling full integration of an adjustable foot operated device with conventional hand operated water faucets. The hand free water system can include a control state module for providing a user with BYPASS, ON, OFF, HOT and COLD modes of operation. Hardware can include a sealed chamber body adapted for containing a mixing ball valve and having chamber ports further serving as internal passages to channels adapted to said sealed chamber body for connection to water line tubing. The mixing ball can include delivery and exit ports through which water can enter and exit and is adapted for rotation in relation to the fixed chamber body for selective alignment with said chamber ports. A foot controllable actuator in operational connection with said mixing ball valve, wherein rotation of said mixing ball valve with said foot controllable actuator offer user over control water flow rate and temperature. Other aspects and features of the present invention will be appreciated by those skilled in the art after full review of the detailed descriptions, associated drawings, and the appended claims.  
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0016]     The accompanying figures, in which like reference numerals refer to identical or functionally similar elements throughout the separate views and incorporation within and from part of the specification, further illustrate the present invention and, together with the detailed description of the invention, serve to explain the principles of the present invention.  
         [0017]      FIG. 1A  illustrates an exemplary external view of a form of embodiment of a “two valve” conventional faucet configured with service shut-off valves, in accordance with prior art;  
         [0018]      FIG. 1B  illustrates a schematic representation of an interconnection of a “two valve” conventional faucet with service shut-off valves, in accordance with prior art;  
         [0019]      FIG. 1C  illustrates an exemplary external view of a form of embodiment of a “single lever” conventional faucet configured with service shut-off valves, in accordance with prior art;  
         [0020]      FIG. 1D  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves, in accordance with prior art;  
         [0021]      FIG. 2  illustrates an exemplary sectional view of a “single lever” conventional faucet, in accordance with prior art;  
         [0022]      FIG. 3  illustrates an exemplary exploded view of a “single lever” conventional faucet, in accordance with prior art;  
         [0023]      FIG. 4A  illustrates an exemplary external view of a form of embodiment of a typical cabinet top installation of a “single lever” conventional faucet configured with service shut-off valves and a typical counter base installation of a “hands free” device, in accordance with prior art;  
         [0024]      FIG. 4B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and a “hands free” device, in accordance with prior art;  
         [0025]      FIG. 5A  illustrates an exemplary external view of a form of embodiment of a typical cabinet top installation of a “single lever” conventional faucet configured with service shut-off valves and a typical cabinet base mount of the “hands free” device, in accordance with an embodiment of the present invention;  
         [0026]      FIG. 5B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device, in accordance with an embodiment of the present invention;  
         [0027]      FIG. 6A  illustrates an exemplary external view of a form of embodiment of a typical atop cabinet base mount of the “hands free” device, in accordance with an embodiment of the present invention;  
         [0028]      FIG. 6B  illustrates an exemplary external view of a form of embodiment of a typical under cabinet base mount of the “hands free” device, in accordance with an embodiment of the present invention;  
         [0029]      FIG. 7A  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “BYPASS” state position, in accordance with an embodiment of the present invention;  
         [0030]      FIG. 7B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device and further illustrating the presence and logical flow of water in the “BYPASS” state, in accordance with an embodiment of the present invention;  
         [0031]      FIG. 8A  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “OFF” state position, in accordance with an embodiment of the present invention;  
         [0032]      FIG. 8B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device and further illustrating the presence and logical flow of water in the “OFF” state, in accordance with an embodiment of the present invention;  
         [0033]      FIG. 9A  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “HOT” state position, in accordance with an embodiment of the present invention;  
         [0034]      FIG. 9B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device and further illustrating the presence and logical flow of water in the “HOT” state, in accordance with an embodiment of the present invention;  
         [0035]      FIG. 10A  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “COLD” state position, in accordance with an embodiment of the present invention;  
         [0036]      FIG. 10B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device and further illustrating the presence and logical flow of water in the “COLD” state, in accordance with an embodiment of the present invention;  
         [0037]      FIG. 11A  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “ON” state position, in accordance with an embodiment of the present invention;  
         [0038]      FIG. 11B  illustrates a schematic representation of an interconnection of a “single lever” conventional faucet with service shut-off valves and the “hands free” device and further illustrating the presence and logical flow of water in the “ON” state, in accordance with an embodiment of the present invention;  
         [0039]      FIG. 12A  is an exemplary sectional side view of a “hands free” device in the “OFF” state position and further illustrating a bottom spring loading of a mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0040]      FIG. 12B  is an exemplary sectional side view of a mixing ball valve in the “COLD” state position and further illustrating deflection limits of a bottom spring mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0041]      FIG. 12C  is an exemplary sectional side view of a mixing ball valve in the “HOT” state position and further illustrating deflection limits of a bottom spring mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0042]      FIG. 13  illustrates an exemplary exploded view of a “hands free” device further illustrating feature capability of adapting foot pedal styles, in accordance with an embodiment of the present invention;  
         [0043]      FIG. 14A  is an exemplary sectional side view of a “hands free” device in the “OFF” state position and further illustrating a top spring loading of a mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0044]      FIG. 14B  is an exemplary sectional side view of a mixing ball valve in the “COLD” state position and further illustrating deflection limits of a top spring mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0045]      FIG. 14C  is an exemplary sectional front view of a mixing ball valve in the “COLD” state position and further illustrating deflection limits of a top spring mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0046]      FIG. 14D  is an exemplary sectional front view of a mixing ball valve in the “OFF” state position and further illustrating deflection limits of a top spring mechanical reset feature, in accordance with an embodiment of the present invention;  
         [0047]      FIG. 14E  illustrates a front view of a faceplate of the “hands free” device illustrating a profile of the foot pedal in the “OFF” state position as reset by a top spring, in accordance with an embodiment of the present invention;  
         [0048]      FIG. 15A  is an exemplary sectional side view of a “hands free” device in the “OFF” state position and further illustrating a top spring loading of a mechanical reset feature and a foot pedal mechanism, in accordance with an embodiment of the present invention;  
         [0049]      FIG. 15B  is an exemplary sectional side view of a “hands free” device in the “ON” state position and further illustrating deflection of a top spring loading of a mechanical reset feature and a foot pedal mechanism, in accordance with an embodiment of the present invention;  
         [0050]      FIG. 16A  illustrates a front view of a faceplate of the “hands free” device illustrating and of the foot pedal in the “OFF” state position as reset by a top spring, in accordance with an embodiment of the present invention;  
         [0051]      FIG. 16B  illustrates a front view of a faceplate of the “hands free” device illustrating and of the foot pedal in the “ON” state position, in accordance with an embodiment of the present invention; and  
         [0052]      FIG. 17  illustrates a block diagram of a system that can be used to carry out the methods of configuring the present invention.  
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0053]     The novel features of the present invention will become apparent to those of skill in the art upon examination of the following detailed description of the invention or can be learned by practice of the present invention. One must understand, however, that the detailed description of the invention and the specific examples presented, while indicating certain embodiments of the present invention, are provided for illustration purposes, only. Due to various changes and modifications within the scope of the invention, the intent of the invention will become apparent to those of skill in the art from the detailed description of the invention and claims that follow.  
         [0054]     Use of “hands free” devices in conjunction with conventional faucets of all types has proven to be very useful and effective in a vast number of applications, but existing devices do not offer a readily configurable system that can deliver a desired variable water rate and temperature mix via a remote “hands free” control device. Another issue in the implementation of existing “hands free” devices resides in the difficulty of the user to determine the present state of the system control settings without inconveniencing the user and exposing the user to possible hazardous conditions. The present invention alleviates these deficiencies in the manner of introducing new and improved methods of asserting and controlling the “hands free” device to regulate the flow rate and temperature mix. Coupled with conforming to standard known methods and features used in existing water valve systems plus the introduction of a systematic and a straightforward approach to presetting the “hands free” device, the benefits of the present invention pose a positive ergonomic effect. In addition to the benefits of convenience and the ease of use of the present invention, the economic benefits in the savings of reducing the waste of clean water and associated energy resources are positive and practical considerations in the use of this device.  
         [0055]      FIGS. 1A through 4B  (all identified as prior art) provide a general background and as benchmarks in the evolutionary improvements of flow rate control and regulation methods and mechanisms leading to the innovation of the present invention. Each graphical illustration in this series depicts an exemplary external view of a form of embodiment of conventional systems and each subsequent Figure represents the functional details, schematically.  
         [0056]     Referring to  FIG. 1A , a graphical illustration depicts a basic “two valve” conventional faucet  100  configured with service shut-off valves  114  and  115 . A basic “two valve” conventional faucet  100  has a fixed base  101  on which is mounted a mixing chamber  102  which forms a delivery spout  103  and output port  104 . Mixing chamber  102  can be in the form of a rotating or a fixed component in relation to the fixed base  101 . A manual control “hot water” knob  106  and “cold water” knob  107  correspond with internal valves (not shown) and passages (not shown) integral to the fixed base  101 . Control knobs  106  and  107  provide the user “hand operated” or manual control of the flow rate of hot and cold water to the mixing chamber  102 . Rotation in either direction  105  about the axis of each of the control knobs  106  and  107  provides a basic form of regulation of the variable flow rate and the mixing ratio between hot and cold water. Predetermined stop limits for a CLOSED state and an OPEN state are integral functions of these internal valves (not shown). Also, integral to the internal valves, are a fixed “hot water” line  108  and “cold water” line  109  that serve as input ports to their respective valves (not shown). Fixed water lines  108  and  109  interconnect with sources of HOT and COLD water. In the basic configuration shown in  FIG. 1A , fixed “hot water” line  108  interconnects with the HOT water supply via standard plumbing components consisting of couplers  110 , water line  112 , and “hot water” service shut-off valve  114 . Similarly, fixed “cold water” line  109  interconnects with the COLD water supply via plumbing components consisting of couplers  111 , water line  113 , and “cold water” service shut-off valve  115 . In normal operational configurations, service shut-off valves  114  and  115  are set to an OPEN state by adjustment of control knobs  116  and  117 .  
         [0057]     Referring to  FIG. 1B , a graphical illustration depicts a schematic representation  120  of the basic “two valve” conventional faucet  100  and service shut-off valves  114  and  115  configuration, as graphically illustrated in  FIG. 1A . In this basic configuration, the logical path of hot water flow begins with the presentation of hot water from the HOT water source to the input port of the “hot water” shut-off valve  114 . The output port of the “hot water” shut-off valve  114 , in turn, connects with the input port of the “hot water” valve  126  of the “two valve” conventional faucet  100  and presents the hot water to the OUT port  123 . In a similar series arrangement, the logical path of cold-water flow begins at the COLD water source; through the “cold water” shut-off valve  115 ; through the “cold water” valve  127 ; and outputs at the OUT port  123 . The schematic representation  120  illustrates the independent regulation control of each of the valves  126  and  127 , and the mixing component as convergence of outputs at OUT  123 . A deficiency of this independent control scheme becomes evident with an operation that requires simultaneous adjustment of both valves  126  and  127 . For these situations, the single user must use both hands to manipulate the two valves  126  and  127 . To alleviate the deficiency of the independent control of the “two valve” conventional faucet  100 , use of a design of a “single lever” conventional valve  150 , as illustrated in  FIG. 1C , is considered.  
         [0058]     Referring to  FIG. 1C , a graphical illustration depicts a basic “single lever” conventional faucet  150  configured with service shut-off valves  114  and  115 . In principle, the functions of a basic “two valve” conventional faucet  100  and a “single lever” conventional faucet  150  are similar. Common to both faucets  100  and  150  are that a “single lever” conventional faucet  150  has a fixed base  151  on which is mounted a chamber body  152  which forms a delivery spout  153  and output port  154 . Likewise, the chamber body  152  can be in the form of a rotating or a fixed component in relation to the fixed base  151 . However, a manual control lever  155  corresponds with a single internal valve (not shown) and passages (not shown) integral to the fixed base  151 . Control lever  155  provides the user manual or “hand operated” and simultaneous control of the flow rate of hot and cold water to the chamber body  152 . Rotation in either direction  157  about the axis of the chamber body  152  provides the regulation of the mixing ratio between hot and cold water and the vertical deflection  158  adjusts the variable flow rate. Predetermined stop limits for a CLOSED state and an OPEN state are integral functions of internal valve elements (not shown). Also, integral to the internal valves, are a fixed “hot water” line  108  and “cold water” line  109  that serve as input ports to their respective valve elements (not shown). Configuration and interconnection of the “single lever” conventional faucet  150  to HOT and COLD water sources is identical to that of the “two valve” conventional faucet  100 .  
         [0059]     Referring to  FIG. 1D , a graphical illustration depicts a schematic representation  170  of the basic “single lever” conventional faucet  150  and service shut-off valves  114  and  115  configuration. In this basic configuration, the logical paths of hot and cold water flow are identical to the serial arrangement of components of the “two valve” conventional faucet  100 , shown in  FIG. 1B  Main difference between the two configurations  120  and  170  is the function of the linkage  179  between the “hot water” valve element  176  regulating the flow rate and temperature mix OUT  173  versus the “cold water” valve element  177  within the “single lever” conventional faucet  150 . Although, the schematic representation  170 , as shown in  FIG. 1D , symbolically illustrates linkage between two independent valve elements  176  and  177 , the physical realization is a single mixing ball valve  220 , as shown in  FIG. 2 .  
         [0060]     Referring to  FIG. 2 , a graphical illustration depicts an exemplary sectional view of a “single lever” conventional faucet  150  housed in fixed base  151 . The “single lever” conventional faucet  150  employs a mixing ball valve  220  of the open type, offering lateral “hot water” inlet  221  and a “cold water”  222  that communicate directly with internal passages  230  and  232 , respectively. The delivery outlet  223  of mixing ball valve  220  communicates directly with an output passage  208  of the delivery spout  153  and outputs via the port  154 . Chamber body  152  covers and retains cam assembly  215  that guides ball valve stem  210  and maintains a water seal about mixing ball valve  220 . Alignment of mixing ball stem is in relation to slot  225  that pivots about a fixed pin (not shown) within the chamber body  152  and allows restricted rotation of the mixing ball valve  220 . Orientation of faucet control handle  155  is in relation to the alignment of internal drive components of the mixing ball valve  220  and chamber body  152 . External input port for “hot water”  108  and “cold water”  109  interconnect directly with internal passages  230  and  232 . Within the internal passages  230  and  232 , are recessed “hot water” seal assembly  237  and “cold water” seal assembly  238  that form a water seal about the mixing ball valve  220 .  
         [0061]     Referring to  FIG. 3 , a graphical illustration depicts an exemplary exploded view of the critical components of a “single lever” conventional faucet  150 . The escutcheon  151   a , portion of the fixed base  151  described in  FIG. 2 , forms the platform for securing the chamber body cover  152   a  unto the main chamber body  152   b . The main chamber body has a chamber cavity  333  intended to receive the hot and cold water seal assemblies  237  and  238 , respectively. Seat  237   a  and spring  237   b  form the “hot water” seal assembly  237  and seat  238   a  and spring  238   b  form the “cold water” seal assembly and are installed within the two recessed ports (not shown) within chamber cavity  333 . Chamber cavity  333  also receives and aligns mixing ball valve  220  via slot  225  and fixed pin (not shown) within chamber cavity  333 . The alignment sets orientation of mixing ball stem  210  with control handle  155 . Cam assembly  215  consisting of an o-ring seal  215   a , a cam  215   b , and a cam bushing  215   c  provide a guide for the mixing ball valve stem  210  in combination with forming a water seal for the mixing ball valve  220 . Hot and cold water deliveries to the main chamber body  152   b  are through external ports  108  and  109 . Output passage  208  delivers resultant water flow and temperature mix to faucet spout  153  and outputs via the port  154 .  
         [0062]     Referring to  FIG. 4A , a graphical illustration depicts a basic installation of a “single lever” conventional faucet  150  configured with “hands free” faucet control system  420  and service shut-off valves  114  and  115 . The top horizontal plane  402  represents a cabinet countertop support plane of a “single lever” conventional faucet  150 . The bottom horizontal plane  403  represents a cabinet base support plane of a “hands free” faucet control system  420 . Vertical plane  401  represents a back support plane for the cabinet and plane  404  represents a front surface plane of a baseboard. Interconnection of a “single lever” conventional faucet  150  to the “hands free” faucet control system  420  is in a logical series configuration with the HOT and COLD water supplies. A basic “hands free” faucet control system  420  has a fixed base  423  on which is mounted a valve actuator  421 . Vertical deflection  427  of the combination foot pedal  429  and linkage assembly  425  provides a basic form of foot control for engaging and disengaging the valve actuator  421 . Downward deflection of the foot pedal  429  activates separate hot and cold water valves (not shown), internal to valve actuator  421 , from normally CLOSED state to an OPEN state. Fixed water lines  108  and  109  interconnect via couplers  460  and  461  with “hands free” faucet control&#39;s output lines  462  and  463 , respectively. In the configuration shown in  FIG. 4A , “hot water” input of “hands free” faucet control interconnects with the HOT water supply via water line  112 , and “hot water” service shut-off valve  114 . Similarly, “cold water” input of “hands free faucet control interconnects with the COLD water supply via water line  113 , and “cold water” service shut-off valve  115 .  
         [0063]     Referring to  FIG. 4B , a graphical illustration depicts a schematic representation  470  of the “hands free” faucet control  420  configured with a basic “single lever” conventional faucet  150  and service shut-off valves  114  and  115 . The variable linkage  179  between the “hot water” valve element  176  and the “cold water” valve element  177  regulate the flow rate and temperature mix of the water OUT  173 . The “hands free” faucet control  420  is depicted with fixed linkage  489  between two independent valves  486  and  487  that are activated simultaneously, as described above, and at the same flow rate.  
         [0064]     Referring to  FIG. 5A , a graphical illustration depicts a basic installation of a “single lever” conventional faucet  150  configured with “hands free” faucet control system  520  and service shut-off valves  114  and  115  in accordance with features of the present invention. The top horizontal plane  502  represents a cabinet countertop support plane of a “single lever” conventional faucet  150 . The bottom horizontal plane  503  represents a cabinet base support plane of a “hands free” faucet control system  520 . Vertical plane  501  represents a back support plane for the cabinet and plane  504  represents a front surface plane of a typical baseboard. Interconnection of a “single lever” conventional faucet  150  to the “hands free” faucet control system  520  is in a logical parallel and series configuration with the HOT and COLD water supplies. A basic “hands free” faucet control system  520  has a fixed base  523  on which is mounted a valve actuator  521 . Vertical deflection  527   z  and horizontal deflection  527   x  of foot pedal assembly  529  provides a basic form of foot control for engaging and disengaging the valve actuator  521 . Deflections of the foot pedal  529  controls the variable flow rate and temperature mix of both HOT and COLD water via a single internal valve (not shown). Fixed “hot water” line  108  interconnects via coupler  560  with “hands free” faucet control&#39;s output line  562 . HOT water input connection  112  interconnects with the “hot water” input of “hands free” faucet control  520 . Fixed “cold water” line  109  interconnects via coupler  561  to pipe segment. COLD water input line  113  is divided via “tee connector”  591  in a parallel arrangement via external connections  563   a  and  563   b  to conventional faucet  150  and hands free faucet control  520 , respectively.  
         [0065]     In operation, reference being made to  FIG. 5B , a graphical illustration depicts a schematic representation  570  of the “hands free” faucet control  520  configured with a basic “single lever” conventional faucet  150  and service shut-off valves  114  and  115 . Logical path of HOT water flow is the series arrangement of “shut-off” valve  114 ; “hot water” valve element  586  of hands free faucet control  520 ; and “hot water” valve element  176  of the conventional “single lever” faucet  150 . Logical path of COLD water flow is the combination series and parallel arrangement of the “shut-off” valve  115 ; “tee” fitting  591 ; “cold water” valve element  587  of hands free faucet control  520 ; and “cold water” valve element  177  of the conventional “single lever” faucet  150 . The variable linkage  179  between the “hot water” valve element  176  and the “cold water” valve element  177  regulate the flow rate and temperature mix of the water OUT  173 . The “hands free” faucet control  520  is depicted with variable linkage  589  between two independent valve elements  586  and  587  that are capable of being activated simultaneously and regulate flow rates and temperature mix as described with the “hands free” faucet concept.  
         [0066]     Referring to  FIG. 6A , a graphical illustration depicts a basic installation of a “hands free” faucet  520  with base  523  secured to the top side of surface  603  of platform  604 . A plurality of accessories and foot pedals can be provided to interchange with the foot pedal  529  and adjust the foot pedal position in accordance to platform height H  640  and allows deflection of foot pedal  529  in the horizontal and vertical directions  527   x  and  527   z . Adjustment and position of foot pedal  529  is critical to operational freedom of movement within valve actuator  521  operating limits in all modes of operation and within the limitation of aperture  639 . Operational mode indicators BYPASS  631 , OFF  632 , HOT  633 , COLD  634 , and ON  635  indicate the relative position of foot pedal  529  and correlates with the present operational state of the “hands free” faucet  520 .  
         [0067]     In one embodiment,  FIG. 6B , an installation of a “hands free” faucet  520  with base  523  secured to the bottom surface  603  of platform  604  allowing “hands free” faucet  520  to suspend from the bottom surface  603 . A version of foot pedal  529  may be adjusted to conform to platform height H  640  and allow movement of foot pedal  529  in the horizontal and vertical directions  527   x  and  527   z , as described above.  
         [0068]     In operation, reference being made to  FIG. 7A , a graphical illustration depicts the front view of faceplate  700  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739 . Operational mode labels BYPASS  731 , OFF  732 , HOT  733 , COLD  734 , and ON  735  indicate the relative position of corresponding operational states of the “hands free” faucet  520 ,  FIG. 5A .  FIG. 7A  further illustrates the placement of the foot pedal  729  within the operational zone  731   a  of the BYPASS state  731 . In the BYPASS state  731 , the “hands free” faucet  520 ,  FIG. 5A , is not activated and provides the user normal use of the conventional faucet  150 ,  FIG. 5A .  
         [0069]     In operation, reference being made to  FIG. 7B , a graphical illustration depicts a schematic representation  770  of the “hands free” faucet  520  set in the BYPASS state  731 ,  FIG. 7A , allowing normal control of “single lever” conventional faucet  150 . Water valve elements  586  and  587  of “hands free” faucet  520  are positioned or “parked” in a fixed position by linkage  589 . Supply of HOT water is transferred via shut-off valve  114  and allowed to flow via a fixed OPEN “hot water” valve  586  and delivered via line connection  562  to “hot water” valve element  176 . Supply of COLD water is transferred via shut-off valve  115  via tee connector  591  that diverts the COLD water supply to line connections  563   a  and  563   b . Line connection  563   a  provides direct supply of COLD water to “cold water” valve element  177 . In the BYPASS state  731 , line connection  563   b  provides direct supply of COLD water to CLOSED “cold water” valve  587 , and terminates at this junction. Desired flow rate and temperature mix is controlled by adjustment of valve elements  176  and  177  by linkage  179  and output via OUT port  173 .  
         [0070]     In operation, reference being made to  FIG. 8A , a graphical illustration depicts the front view of faceplate  700  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739  and placement of the foot pedal  729  within the operational zone  732   a  of the OFF state  732 . In the OFF state  732 , the “hands free” faucet  520 ,  FIG. 5A , is activated and provides the user normal use of the “hands free” faucet  520 . Initial condition of the conventional faucet  150 ,  FIG. 5A , must be set manually to desired flow rate of “hot water” prior to activating the “hands free” faucet  520 .  
         [0071]     In operation, reference being made to  FIG. 8B , a graphical illustration depicts a schematic representation  870  of the “hands free” faucet  520  set in the OFF state  732 ,  FIG. 8A , engaging control of “hands free” faucet  520 . Water valve elements  586  and  587  are positioned in CLOSED states by linkage  589 . Supply of HOT water is transferred via shut-off valve  114  and presented to the CLOSED “hot water” valve  586 . Initial state of “hot water” valve element  176  is preset to the desired flow rate and outputs via OUT port  173 . Supply of COLD water is transferred via shut-off valve  115  via tee connector  591  that diverts the COLD water supply to line connections  563   a  and  563   b . Line connection  563   a  provides direct supply of COLD water to “cold water” valve element  177  and terminates at this junction, yet user is allowed to manually control COLD water by means of linkage  179  and cold water valve element  177 . Line connection  563   b  provides direct supply of COLD water and presented to CLOSED “cold water” valve  587 .  
         [0072]     In operation, reference being made to  FIG. 9A , a graphical illustration depicts the front view of faceplate  700  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739  and placement of the foot pedal  729  within the operational zone  733   a  of the HOT state  733 .  
         [0073]     In operation, reference being made to  FIG. 9B , a graphical illustration depicts a schematic representation  970  of the “hands free” faucet  520  set in the HOT state  733 ,  FIG. 9A , allowing normal control of the “hands free” faucet  520  with preset conditions of water valve elements  176  and  177  of “single lever” conventional faucet  150 . Desired flow rate is preset by adjustment of valve elements  176  to the OPEN state and  177  to the CLOSED state by linkage  179 . Water valve elements  586  and  587  of “hands free” faucet  520  are variably controlled by linkage  589 . Supply of HOT water is transferred via shut-off valve  114  and allowed to flow via a fixed OPEN “hot water” valve  586  and transferred via line connection  562  presented to “hot water” valve element  176  and delivered to OUT port  173 . Supply of COLD water is transferred via shut-off valve  115  via tee connector  591  that diverts the COLD water supply to line connections  563   a  and  563   b . Line connection  563   a  provides direct supply of COLD water to “cold water” valve element  177 . In the HOT state  731 , line connection  563   b  provides direct supply of COLD water to CLOSED “cold water” valve  587  and terminates at this junction.  
         [0074]     In operation, reference being made to  FIG. 10A , a graphical illustration depicts the front view of faceplate  700  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739  and placement of the foot pedal  729  within the operational zone  734   a  of the COLD state  734 .  
         [0075]     In operation, reference being made to  FIG. 10B , a graphical illustration depicts a schematic representation  1070  of the “hands free” faucet  520  set in the COLD state  734 ,  FIG. 10A , allowing normal control of the “hands free” faucet  520  with preset conditions of water valve elements  176  and  177  of “single lever” conventional faucet  150 . Desired flow rate is preset by adjustment of valve elements  176  to the OPEN state and  177  to the CLOSED state by linkage  179  and output via OUT port  173 . Water valve elements  586  and  587  are variably controlled by linkage  589 . Supply of HOT water is transferred via shut-off valve  114  and supplied to a fixed CLOSED “hot water” valve  586 . Supply of COLD water is transferred via shut-off valve  115  via tee connector  591  that diverts the COLD water supply to line connections  563   a  and  563   b . Line connection  563   a  provides direct supply of COLD water to “cold water” valve element  177 . In the COLD state  734 ,  FIG. 10A , line connection  563   b  allows the supply of COLD water to flow through an OPEN “cold water” valve  587  and delivered to valve element  176  via line connection  562 .  
         [0076]     In operation, reference being made to  FIG. 11A , a graphical illustration depicts the front view of faceplate  700  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739  and placement of the foot pedal  729  within the operational zone  735   a  of the ON state  735 .  
         [0077]     In operation, reference being made to  FIG. 11B , a graphical illustration depicts a schematic representation  1170  of the “hands free” faucet  520  set in the ON state  735 ,  FIG. 11A , allowing normal control of “hands free” faucet  520 . Water valve elements  586  and  587  are positioned in variable OPEN states by linkage  589 . Supply of HOT water is transferred via shut-off valve  114  and presented to the OPEN “hot water” valve  586  and is delivered to the “hot water” valve element  176  via line connection  562 . Initial state of “hot water” valve element  176  is preset to the desired flow rate and outputs via OUT port  173 . Supply of COLD water is transferred via shut-off valve  115  via tee connector  591  that diverts the COLD water supply to line connections  563   a  and  563   b . Line connection  563   a  provides direct supply of COLD water to “cold water” valve element  177  and terminates at this junction, yet user is allowed to manually control COLD water by means of linkage  179  and cold water valve element  177 . Line connection  563   b  provides direct supply of COLD water and presented to variably OPEN “cold water” valve  587  and combined and mixed with HOT water supplied by valve element  586 .  
         [0078]     Referring to  FIG. 12A , a graphical illustration depicts an exemplary sectional view of a “hands free” control faucet  1200  housed in fixed base  1251 . The “hands free” control faucet  1200  employs a mixing ball valve  1220  of the open type, offering lateral “hot water” inlet  1221  and a “cold water”  1222  that communicate directly with internal passages  1230  and  1232 , respectively. The delivery outlet  1223  of mixing ball valve  1220  communicates directly with an output passage  1208  and outputs via the port  1236 . Chamber body  1252  covers and retains cam assembly  1215  that guides ball valve stem  1210  and maintains a water seal about mixing ball valve  1220 . Alignment of mixing ball valve stem  1210  is in relation to slot  1225  that pivots about a fixed pin  1212  within the chamber body  1252  and allows restricted rotation of the mixing ball valve  1220 . Orientation of foot control pedal  1229  is in relation to the alignment of internal drive components of the mixing ball valve  1220  and chamber body  1252 . External input port for “hot water”  1234  and “cold water”  1235  interconnect directly with internal passages  1230  and  1232 , respectively. Within the internal passages  1230  and  1232 , are recessed “hot water” seal assembly  1237  and “cold water” seal assembly  1238  that form a water seal about the mixing ball valve  1220 . Integral to the front side of the chamber body  1252  is a cylindrical slot  1262  that support a mechanical coil spring  1261  and buffer pad  1260  that in combination under compression apply a positive force to the normal of the ball valve stem  1210 . The mechanical coil spring  1251  serves to reset the “hands free” control faucet  1200  to the OFF state  732 ,  FIG. 7A , during normal operation.  
         [0079]     In operation, reference being made to  FIG. 12B , a graphical illustration depicts a superposition view  1270  of the mixing ball valve  1220  in the HOT position  732 ,  FIG. 7A . Mixing ball valve  1220  is deflected by a force FH, resisted by the compression force of mechanical spring  1261 , and displaces the ball valve stem  1210  from the OFF state centerline  1275  to the HOT state centerline  1276 . Mixing ball valve  1220  rotates and pivoting about slot  1225  and fixed pin  1212  aligns “hot water” inlet  1221  and water outlet  1223  to allow HOT water to flow through valve  1220  and delivered to OUT port. Cold water inlet  1222  is positioned in an offset set position closing the path of the COLD water supply.  
         [0080]     Referring to  FIG. 12C , depicts a superposition view  1280  of the mixing ball valve  1220  in the COLD position  734 ,  FIG. 10A . Mixing ball valve  1220  is deflected by a force FC, resisted by the compression force of mechanical spring  1261 , and displaces the ball valve stem  1210  from the OFF state centerline  1275  to the COLD state centerline  1277 . Mixing ball valve  1220  rotates and pivoting about slot  1225  and fixed pin  1212  aligns “cold water” inlet  1222  and water outlet  1223  to allow COLD water to flow through ball valve  1220  and delivered to OUT port. Hot water inlet  1221  is positioned in an offset set position closing the path of the HOT water supply.  
         [0081]     Referring to  FIG. 13 , a graphical illustration depicts an exemplary exploded view of the critical components of a “hands free” control faucet  1200 . The chamber body cover  1252   a , the main chamber body  1252   b , and coil spring cover  1252   c  form the housing of components that make-up the function of the “hands free” control faucet  1200 . Combination seat  1237   a  and spring  1237   b  form the “hot water” seal assembly  1237 . Combination seat  1238   a  and spring  1238   b  form the “cold water” seal assembly. Both water seal assemblies  1237  and  1238  are installed within the two recessed ports (not shown) within chamber cavity  1333 . Chamber cavity  1333  also receives and aligns mixing ball valve  1220  via slot  1225  and fixed pin (not shown) within chamber cavity  1333 . The alignment sets orientation of mixing ball stem  1210  with a single control foot pedal  1229   a  or  1229   b . It is understood that on other forms of embodiment, the foot pedal control mechanism and shape of the foot pedal assembly can take on many forms and used with “hands free” control faucet  1200 . Cam assembly  1215  consisting of an o-ring seal  1215   a , a cam  1215   b , and a cam bushing  1215   c  provide a guide for the mixing ball valve stem  1210  in combination with forming a water seal for the mixing ball valve  1220 . Hot and cold water deliveries to the main chamber body  1252   b  are through external ports  1234  and  1235 , respectively. Output passage  1236  delivers resultant water flow and temperature mix to outputs via the OUT port. Integral to the chamber body cover  1252   b  is a cylindrical slot  1262  that supports a mechanical coil spring  1261  and buffer pad  1260 , retained by coil spring cover  1252   c  that in combination and under compression apply a positive force to the normal of the ball valve stem  1210 .  
         [0082]     Referring to  FIG. 14A , a graphical illustration depicts an exemplary sectional view of a “hands free” control faucet  1400  housed in fixed base  1451 . The “hands free” control faucet  1400  employs a mixing ball valve  1420  of the open type. Alignment of mixing ball stem  1410  is in relation to slot  1425  that pivots about a fixed pin  1412  within the chamber body  1452  and allows restricted rotation of the mixing ball valve  1420 . Orientation of foot control pedal  1429  is in relation to the alignment of internal drive components of the mixing ball valve  1420  and chamber body  1452 . Integral to the front top side of the chamber body  1452  is a cylindrical slot  1462  that supports a mechanical coil spring  1461  that under expansion applies a negative force to the normal of the ball valve stem  1410 . Each end of coil spring  1461  attaches to through holes  1465  located on chamber body  1452  and ball valve stem  1410 , linking both components. The coil spring  1461  serves to reset the “hands free” control faucet  1400  to the OFF state  732 ,  FIG. 7A , during normal operation.  
         [0083]     Referring to  FIG. 14B , a graphical illustration depicts a superposition side view of the mixing ball valve  1420  in the COLD position  734 ,  FIG. 10A . Mixing ball valve  1420  is deflected by a force FC, resisted by the expansion force of mechanical spring  1461 , and displaces the ball valve stem  1410  from the OFF state centerline  1475  to the COLD state centerline  1477 . Mixing ball valve  1420  rotates and pivoting about slot  1425  and fixed pin  1412  aligns “cold water” inlet  1422  and water outlet  1423  to allow cold water to flow through ball valve  1420  and delivered to OUT port.  
         [0084]     Referring to  FIG. 14C , a graphical illustration depicts a superposition front view of the mixing ball valve  1420  in the COLD position  734 ,  FIG. 10A . Mixing ball valve  1420  is deflected and resisted by the expansion force of mechanical spring  1461 , and displaces the ball valve stem  1410  from the OFF state centerline  1475  to the COLD state centerline  1477 . Mixing ball valve  1420  rotates and pivoting about slot  1425  and fixed pin  1412  aligns “cold water” inlet (not shown) and water outlet  1423  to allow cold water to flow through ball valve  1420  and delivered to OUT port.  
         [0085]     Referring to  FIG. 14D , a graphical illustration depicts a superposition front view of the mixing ball valve  1420  in the OFF position  732 ,  FIG. 7A . Mixing ball valve  1420  is reset by the expansion force of mechanical spring  1461 , and displaces the ball valve stem  1410  from the COLD state centerline  1477  to the OFF state limit line  1479 . Mixing ball valve  1420  rotates and pivoting about slot  1425  and fixed pin  1412  offsets “cold water” inlet (not shown) and water outlet  1423  to block water flow to OUT port.  
         [0086]     In operation, reference being made to  FIG. 14E , a graphical illustration depicts the front view of faceplate  1480  of a “hands free” faucet  520 ,  FIG. 5A , with aperture  739  and position of the foot pedal  1429  in the OFF state  732 ,  FIG. 7A , within the reset zone  732   c  centered with respect to the OFF state vertical centerline  1481 . Foot pedal  1429  is forced to the centralized reset zone  1432  by compression force or expansion force exerted by mechanical springs  1261 ,  FIG. 12A , or mechanical spring  1461 ,  FIG. 14A , and upon removal of external force FC,  FIGS. 12B and 14B .  
         [0087]     Referring to  FIG. 15A , a graphical illustration depicts an exemplary sectional view of a “hands free” control faucet  1400  configured with a foot control pedal  1580  in the OFF state position  732 ,  FIG. 7A  Orientation of foot control pedal upper link  1583  is in relation to the alignment of the ball valve stem  1410  and in-line with OFF state horizontal centerline  1575 . A mechanical coil spring  1461  that under expansion applies a negative force to the normal of the ball valve stem  1410  is in a relaxed position. Foot control pedal  1580  is attached to ball valve stem  1410  by a coupler  1581  that links upper arm  1583  via swivel pin  1582 . Upper arm  1583  is capable of sliding into lower arm tubing  1585  for the purpose of adjusting the length of the overall linkage Coupler  1584  serves to secure and fasten in place upper arm  1583  and lower arm  1585 . Bottom end of lower arm  1585  forms a spherical ball joint  1586  that fits circumferentially within a ball socket  1586   a  centrally located on the rear edge of the foot pedal  1587 . Centrally located along the front side of foot pedal  1587  a spherical ball joint  1588  is positioned between the foot pedal  1587  and base  1589  that rests on surface  1599 .  
         [0088]     In operation, reference being made to  FIG. 15B , a graphical illustration depicts an exemplary sectional view of a “hands free” control faucet  1400  configured with a foot control pedal  1580  in the COLD state  734 ,  FIG. 10A . External force FC applied to control pedal  1580  deflects attached ball valve stem  1410  and activates “hands free” control faucet  1400 . Transfer of external force FC applied to foot pedal control  1580  translates to the lateral and vertical pivoting of the foot pedal  1587  about spherical ball joint  1588  that links the foot pedal  1587  and base  1589  resting on surface  1599 . Upper and lower arms  1583  and  1585  along with associated coupler  1584  pivot about a spherical ball joint  1586 , centrally located on the rear edge of the foot pedal  1587 . Mechanical coil spring  1461  is under expansion by external force FC and applies a negative force to the normal of the ball valve stem  1410 . In the COLD state, upper arm  1583  swivels about swivel pin  1582  and coupler  1581  resulting in the deflection of valve stem  1410 . Orientation of the ball valve stem  1410  is offset from an OFF state centerline position  1575  and is positioned with alignment coinciding with ON state centerline position  1577 .  
         [0089]     In operation, reference being made to  FIG. 16A , a graphical illustration depicts a front view of faceplate  1600  of a “hands free” faucet  520 ,  FIG. 5A , and a foot pedal control  1580  in an OFF state  732 ,  FIG. 7A . Faceplate  1600  with aperture  739  and position of the foot pedal  1587  is centered with respect to the OFF state vertical centerline  1481  and within the reset zone  732   c  of the OFF state  732 . Orientation of upper coupler  1581 , upper arm  1583 , lower arm  1585 , and arm coupler  1584  are aligned in relation to the ball valve stem (not shown) and in-line with OFF state centerline  1481 . Bottom end of lower arm  1585  forms a spherical ball joint  1586  centrally located on the rear edge  1587   b  of the foot pedal  1587  and shown raised relative to front side  1587   a . Recessed and centrally located along the pedal front side  1587   a , a spherical ball joint  1588  is positioned between the foot pedal  1587  and base  1589  that rests on surface  1599 .  
         [0090]     In operation, reference being made to  FIG. 16B , a graphical illustration depicts an exemplary front view faceplate  1650  of a “hands free” faucet  520 ,  FIG. 5A , and a foot pedal control  1580  in a COLD state  734 . The combination of external horizontal force FH and vertical force FV applied to foot pedal control  1580  deflects attached ball valve stem (not shown) and activates “hands free” control faucet  1400 ,  FIG. 15B . Transfer of external forces FH and FV applied to foot pedal control  1580  translates to the lateral and vertical pivoting of the foot pedal  1587  about spherical ball joint  1588  that links the foot pedal  1587  and base  1589  that rests on surface  1599 . Position of spherical ball joint  1588  is central to OFF state vertical centerline  1481 . Upper and lower arms  1583  and  1585  along with associated coupler  1584  pivot about a spherical ball joint  1586 , centrally located on the rear edge of the foot pedal  1587 . In the COLD state, upper arm  1583  swivels about swivel pin (not shown) and coupler  1581  resulting in the deflection of valve stem (not shown). Orientation of the ball valve stem (not shown) and coupler  1581  are offset from an OFF state  732  and outside zone  732   c  to the present ON state position  734  and within ON state zone  734   c.    
         [0091]     Referring to  FIG. 17 , illustrates a block diagram  1700  of a system that can be used to carry out the methods of configuring a “hands free” faucet  520 ,  FIG. 5A , as described above. A “hands free” faucet system  520 ,  FIG. 5A , comprises of the following two modes: “System in Conventional Mode”  1702  and “System in Hands Free Mode”  1708 . Procedure for the configuration of a “hands free” faucet control system  520 ,  FIG. 5A , consists of a closed loop system sequence that allows ease of switching between modes  1702  and  1708 . For purposes of illustration, block diagram  1700  assumes the initial system configuration to be at the block “System in Conventional Mode”  1702  and starts at this point.  
         [0092]     As specified in the system block “System in Hands Free Mode”  1708 , stipulates the initial conditions of control elements and components of a “hands free” faucet control system  520 ,  FIG. 5A : 
        1. Set Hot and Cold Water Service Shut-Off Valves to an OPEN State     2. Set Conventional Faucet Hot and Cold Water Valves to a CLOSED State     3. Set the Hands Free Faucet Control to BYPASS State 
 
 Subsequent to the initiation of conditions outlined in system block “System in Conventional Mode”  1702  is the system operational condition that disengages the “hands free” faucet control  520 ,  FIG. 5A . As specified in the system block  1704 , the user is allowed to control the flow rate and temperature mix of the output by manual control of the conventional faucet valves. 
       
 
         [0096]     As indicated thereafter at decision block  1706 , the user makes the determination to either continue with the “System in Conventional Mode”  1702  or proceed with “System in Hands Free Mode”  1708 . As specified in the system block “System in Hands Free Mode”  1708 , stipulates the initial conditions of control elements and components of a “hands free” faucet system  520 ,  FIG. 5A : 
        1. Set Hot and Cold Water Service Shut-Off Valves to an OPEN State     2. Set Conventional Faucet Cold Water Valve to a CLOSED State     3. Set Conventional Faucet Hot Water Valve to an OPEN State and Adjust to Desired Maximum Flow Rate     4. Set Hands Free Faucet Control to OFF State 
 
 Subsequent to the initiation of conditions outlined in system block “System in Hands Free Mode”  1708  is the system operational condition that engages the “hands free” faucet control  520 ,  FIG. 5A . As specified in the system block  1710 , the user is allowed to control the flow rate and temperature mix of the output by control of the “hands free” faucet control  520 ,  FIG. 5A . As a system feature, the capability of asserting the cold water valve of a conventional faucet, as indicated in system block  1712 , is an option in either mode of operation  1702  and  1708 . 
       
 
         [0101]     The embodiment and examples set forth herein are presented to best explain the present invention and its practical application and to thereby enable those skilled in the art to make and utilize the invention. Those skilled in the art, however, will recognize that the foregoing description and examples have been presented for the purpose of illustration and example only. Other variations and modifications of the present invention will be apparent to those of skill in the art, and it is the intent of the appended claims that such variations and modifications be covered. The description as set forth is not intended to be exhaustive or to limit the scope of the invention. Many modifications and variations are possible in light of the above teaching without departing from the spirit and scope of the following claims. It is contemplated that the use of the present invention can involve components having different characteristics. It is intended that the scope of the present invention be defined by the claims appended hereto, giving full cognizance to equivalents in all respects.