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CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    Benefit is claimed to U.S. Provisional Patent Application No. 62/317,645, filed Apr. 4,2016, the contents of which are incorporated by referenced herein in their entirety. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates to the field of water faucets and water taps. 
       BACKGROUND 
       [0003]    A water faucet or water tap is a device able to control the flow of water. A water faucet may allow a user to commence and to stop the flow of water from a plumbing system or from a water-delivery system. A water faucet may further allow a user to modify the pressure of water flow, or the volume of water that flows per time unit. 
         [0004]    Some water faucets may be implemented as a “mixer tap”, for example, featuring a single handle enabling the user to mix hot water supply with cold water supply, to achieve a desired temperature. 
         [0005]    Also known are mixer faucets having a nozzle incorporating a spray function in the spout are also known, the nozzle often being attached by a hose which is long enough to permit it to be pulled out. 
         [0006]    The size of the hole or bore required to accommodate a mixer faucet is usually about 35 mm, while the outside dimensions of the faucet body are typically 35-50 mm While the sizes of hose used depends on the desired water flow exiting the faucet, its external diameter will normally be no less than 8 mm 
       SUMMARY OF THE INVENTION 
       [0007]    In accordance with an embodiment of the invention, there is provided a mixer water faucet for installation through a bore in a work surface in proximity to a water supply, which includes a stationary housing extending transversely through the bore; a faucet body mounted onto the housing, rotatable relative thereto; a main spout and an auxiliary spout extending from the housing; a main water supply hose for conveying water to the main spout and an auxiliary water supply hose for conveying water to the auxiliary spout, the main water supply hose and the auxiliary water supply hose extending through the housing; and a diverter for selectably directing a supply of water to the main spout and the auxiliary spout. 
         [0008]    Additionally in accordance with an embodiment of the invention, the auxiliary spout is removably mounted onto a rear portion of the faucet body for use at a location relatively remote from the main spout, and the auxiliary water supply hose is adapted for extension through the housing when the auxiliary spout is removed from the faucet body, and for retraction through the housing when re-mounted onto the faucet body. 
         [0009]    Further in accordance with an embodiment of the invention, the main spout is rotatable about a rotation axis extending through the faucet body. 
         [0010]    Additionally in accordance with an embodiment of the invention, the housing has a base and an upper portion, the base having formed therein a shaped opening, and the upper portion having formed therein a main opening aligned with the shaped opening, and an auxiliary opening communicating with the shaped opening aligned along an auxiliary axis, eccentric from the main axis, wherein the main water supply hose enters the housing through the shaped opening, and exits the housing though the main opening, and wherein the auxiliary water supply hose enters the housing through the shaped opening adjacent to the main water supply hose, and exits the housing through the auxiliary opening, the alignment of the auxiliary water supply hose translating from a first auxiliary axis on entry into the shaped opening to a second auxiliary axis on exit from auxiliary opening, wherein the first and second auxiliary axes are eccentric with respect to the rotation axis. 
         [0011]    Further in accordance with an embodiment of the invention, the main water supply house is aligned along a main axis which is eccentric with respect to the rotation axis. 
         [0012]    Additionally in accordance with an embodiment of the invention, the housing has a base and an upper portion, the base having formed therein a shaped opening, and the upper portion having formed therein a main opening aligned with the shaped opening, and an auxiliary opening communicating with the shaped opening aligned along an auxiliary axis, eccentric from the main axis, wherein a rotation of the main spout about a rotation axis causes a partial twisting of the main water supply hose and the auxiliary water supply hose with respect to each other, and wherein the shaped opening is formed to allow relative lateral movement of the main water supply hose and the auxiliary water supply hose with respect to each other, thereby to allow extension and retraction of the auxiliary spout and the auxiliary hose. 
         [0013]    Further in accordance with an embodiment of the invention, the auxiliary spout is a pull-up water spraying element which is located and mounted behind the faucet body and is held or mounted generally-vertically therebehind; and wherein the pull-up water spraying element is releasable from the faucet body by being pulled upwardly, and not by being pulled sideways and/or downwardly. 
       GENERAL DESCRIPTION OF THE INVENTION 
       [0014]    The term “faucet” or “water faucet” as used herein may include, for example, any suitable faucet or tap or valve that controls the flow of water or other liquids; including, but not limited to, a water faucet intended for installation and utilization in a home, a household, a dwelling, an office, a business venue, a factory, a kitchen, a bathroom, a restroom, indoors, outdoors, and/or other suitable places or venues; such faucet having or utilizing or being controlled by a single handle, or two handles, or a knob, or two knobs, or by other user interface elements or controlling elements; and including, but not limited to, a pull-out faucet, a pull-down faucet, a single-handle faucet, a double-handle faucet, a bar faucet, a wall mount faucet, a pot filler faucet, a touch-less faucet or hands-free faucet (e.g., activated by sensing a motion of a hand or a gesture of the user), and/or other suitable types of faucets or taps. 
         [0015]    Applicants have realized that in conventional systems, a main water faucet is sometimes accompanied by a separate side-spray or side-spray element, which is separate and independent from the main water faucet. Applicants have realized that this configuration may suffer from one or more problems or disadvantages, for example: (a) the need to drill two separate holes in a surface or platform (e.g., granite, marble, artificial marble, or other kitchen platform or surface); (b) increased form-factor, and reduced utilization of the kitchen platform due to the fact that two separate units occupy space, side-by-side or next to each other; (c) the need to maintain, clean and/or repair two separate units; (d) reduced convenience for some users, who need to reach sideways to grasp the side-spray unit, while the user is standing in proximity to (or in front of) the main water faucet. 
         [0016]    Applicants have realized that it may be beneficial or advantageous to provide an integral or integrated device, which comprises in the same integrated unit, referred to as water faucet  10  below: (i) a main water faucet, referred to hereinbelow as main spout  20 , including a single handle that controls the flow of both cold water and hot water; (ii) a spraying unit or a spout unit or spout, referred to hereinbelow as auxiliary spout  26 , which is located and/or stored and/or mounted generally behind the main water faucet (e.g., immediately adjacent to the main water faucet; or immediately on its right side or its left side, immediately adjacent to the main water faucet), and utilizes the same single-hole drilled in the kitchen platform (e.g., granite, marble, artificial marble); and (iii) a diverter unit, responsive to manual actuation or manual selection of the user via a diverter switch or diverter lever or diverter button or diverter slider or other diversion interface, to divert or to direct the flow of water, in a selective manner, to either the main water faucet or the spraying unit, and vice versa. 
         [0017]    In some embodiments, the combined faucet  10  receives incoming water from a cold water pipe (or tube), referred to as below as cold water hose  32 , and from a hot water pipe (or tube), referred to below as hot water hose  30 ; and the diverter mechanism or diverter unit, based on the manual position or actuation thereof, diverts or directs the mixed water (or the single stream of water) to either the spraying unit  26  or the main faucet  20 . 
         [0018]    In some embodiments, the spraying or auxiliary  26  is connected to an elongated and flexible pipe or tube, which allows the user to pull-out or to pull-up the spraying unit  26 , and to distance it from the water faucet or main spout  20 , in order to reach locations or areas that the main water faucet  20  (which lets the water flow downwardly and generally vertically) cannot reach; and which also enables the user to utilize the spraying unit  26  for a variety of tasks, for example, cleaning the sink or the sink area or the platform next to the faucet, filling-up water into a coffee-maker machine or a soda-maker machine or into a pot or a pan or a cooking appliance, or the like. 
         [0019]    Optionally, the auxiliary spout or spraying-unit  26  may have an actuation button  24 , such that only when the user presses the button does water flow out of the auxiliary spout or spraying-unit  26 ; and such that water does not flow out of the spout or spraying-unit once the button is depressed or un-pressed or is not touched (or not pressed) any more by the user. Optionally, the spout or spraying-unit may comprise one or more buttons or user-interface elements (e.g., a lever, a slider, a rotating selector, or the like), which may switch or modify the operational characteristics of the spout or the spraying unit; for example, between a regular flow, a “spray” type flow or scattered-flow, an “aerated” flow, a “pause”/“un-pause” button. In some embodiments, the auxiliary spout  26  may have a button to trigger or to cause diversion of the water flow, from flowing exclusively through the main faucet  20 , to be diverted into and to flow outwardly exclusively through the spouting unit or spraying unit. For example, if the lever or handle of the main faucet is pulled or moved by a user to enable flow of water, then as a “default route”, the water flows out through the main faucet and not to the spraying unit; and only if or when the user presses the actuation button in the spraying unit, the diversion mechanism is triggered to operate and the flow of water is diverted to flow out through the pulled-out spraying unit, instead of through the main faucet. 
         [0020]    In some embodiments, the main water faucet may comprise, on its rear side  28  (e.g., the side that is located away from the user, or is located between the faucet and a wall that typically exists behind the faucet, a particular cavity or channel or crater or rib, that enables the secure placement or mounting or holding-in-place of the spout unit or spraying unit, when not in use or after its utilization is over. In some embodiments, the pulled-out flexible pipe or flexible tube of the spout or spraying-unit, may be inserted back downwardly and may be stored within or under the kitchen platform or under the sink, hidden away from the user when not in use. 
         [0021]    In some embodiments, the water-outlet of the auxiliary spout  26 , when the spout is mounted or held-in-place behind the main faucet  20 , may face backwardly or rearward, away from the user, or towards a back-wall that may be located behind the water faucet. In other embodiments, the water-outlet of the auxiliary spout  26 , when mounted or held-in-place behind the main faucet  20 , may face the front, towards the user, or towards the rear-side of the main faucet  20  which “hides” or blocks that water outlet from the user. 
         [0022]    In some embodiments, the pull-up auxiliary spout or spraying unit  26  of the present invention, is not merely a pull-out unit that is pulled out (or away) from the main faucet  20 , in a downward direction or in a horizontal direction in order to be released from the grip of (or from the holding by) the main water faucet. Rather, the pull-up auxiliary spout or spraying unit  26  of the present invention is a pull-up unit that can be pulled up, or upwardly, or only upwardly, or exclusively upwardly, in order to be released from the grip of (or from the holding by) the main faucet  20 ; and only after such upward-only pull-up for the safe release of the spout from the rear-side of the water faucet that holds it, only then may the auxiliary spout unit  26  be moved around the area flexibly while being connected to the water system via the flexible pipe or flexible tube thereof. 
         [0023]    In some embodiments, optionally, the entirety of the auxiliary spout or spraying-unit  26  may be a generally flat unit, or a rectangular unit, or a box or cuboid or rectangular cuboid unit; and may not comprise any L-shaped ending or edge or protrusion or spout-area; thereby keeping the form-factor of the unit small, and/or thereby allowing smoother holding by the user which may hold the unit similar to holding a flat handle and without an L-shaped ending or protrusion, and/or thereby enabling the auxiliary spout or spraying-unit  26  to spray water in an un-obstructed manner from a flat or generally-flat water outlet of the auxiliary spout  26  and without being restricted or obstructed by a protrusion or an L-shaped ending of the spout. In other embodiments, the spraying unit or the auxiliary spout element  26  may be generally flat but may also have a slightly protruding water-outlet at or near its distal end (e.g., away from the base of the faucet), through which the water flows out or is sprayed out or is spouted out. 
         [0024]    In some embodiments, the auxiliary spout element or the spraying element  26  may be structured to exactly complement a generally-vertical crater or insert or crater than is indented into the rear-side of the main water faucet  20 ; such that the integrated device  10 , namely the main water faucet  20  in the front and the held-in-place auxiliary spout unit  26  in the back, together form a perfect or generally-perfect cylinder or rectangular cuboid or other shape which is generally straight and lacks protrusions or craters. 
         [0025]    In some embodiments, the water faucet system  10  of the present invention and/or its units or elements, may be utilized in (or may be implemented as): a pull-up water faucet system, a single-state or dual-state pull-out water faucet system, and/or other suitable types of water faucet systems. 
         [0026]    In some embodiments, optionally, a user may permanently or temporarily remove or cancel the operation of the auxiliary spraying unit  26 ; for example, by adding or inserting or appending or inserting a suitable seal or blocking-element or cover or water-blocker or similar element, at or near the externally-facing water-outlet of the spraying unit and/or at the base-area of the spraying unit and/or within the spraying unit and/or at (or near) the connection between the spraying unit and the main water faucet and/or at (or near) the diverting mechanism that diverts water from the main water faucet to the pull-up spraying unit. In some embodiments, optionally, the entire pull-up spraying unit may be removed from the water faucet system (e.g., permanently or temporarily); and/or may be replaced in a modular manner with other suitable water-outlet units, for example, thereby converting the water faucet system into a fixed-outlet system or a non-moving-outlet system, or thereby converting the water faucet system into a pull-out system, or the like. 
         [0027]    Functions, operations, components and/or features described herein with reference to one or more embodiments, may be combined with, or may be utilized in combination with, one or more other functions, operations, components and/or features described herein with reference to one or more other embodiments, or vice versa. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0028]    The present invention will be more fully understood and appreciated from the following detailed description, taken in conjunction with the drawings, in which: 
           [0029]      FIG. 1A  is a pictorial representation of a water faucet constructed in accordance with an embodiment the present invention, as viewed from above a work surface in which the faucet is installed, wherein the auxiliary spout is in a retracted position; 
           [0030]      FIG. 1B  is similar to  FIG. 1A , but wherein the auxiliary spout is in an extended position; 
           [0031]      FIG. 2  is a plan view of the faucet of  FIG. 1 ; 
           [0032]      FIG. 3  is a partial side view of the faucet of  FIG. 1 ; 
           [0033]      FIG. 4  is an exploded, schematic diagram showing the flow and distribution of water supplied to the faucet of  FIG. 1 ; 
           [0034]      FIG. 5  is a side-sectional, partially exploded view of a faucet body  16  and main spout  20  constructed in accordance with an embodiment of the invention; 
           [0035]      FIG. 6  is a schematic plan view of main spout when rotated from a first position to a second position; 
           [0036]      FIG. 7A  is a bottom view of the faucet body of the invention, showing a shaped opening for the hoses through which water is provided to the main spout and the auxiliary spout, the eccentric positioning of both the main spout supply hose and the auxiliary spout supply hose relative to the axis of rotation of the main faucet body, and their movement consequent to the rotation of the main spout as shown in  FIG. 6 ; and 
           [0037]      FIG. 7B  is an enlarged view of the shaped opening and its position relative to the axis of rotation of the main faucet body. 
       
    
    
     DETAILED DESCRIPTION 
       [0038]    Referring now to  FIGS. 1-3 , there is seen a water faucet, referenced generally  10 , generally as described above, installed in a single hole  12 , formed in a work surface or platform  14 . Typically, but way of non-limiting example only, hole  12  has a diameter which is typically 35 mm as known in the art. Faucet  10  includes a faucet body  16  which may have an outside diameter of 35-50 mm as known in the art, and is supported on platform  14  via a housing  18  and shank  29 . Body  16  is rotatable relative to housing  18  which has a fixed position relative to platform  14 , and both are held in position via a suitable system of fasteners as illustrated and as generally known in the art. Faucet body  16  has a main spout  20  to which water is supplied as shown and described herein, inter alia, in conjunction with  FIG. 4 , by suitable operation of selector handle  5  and mode selector switch  24 , mounted onto auxiliary spout  26 . Operation of handle  5  and mode selector switch are generally as known in the art and are thus not described herein in detail, Auxiliary spout  26  is extendably mounted onto a rearward facing portion  28  ( FIG. 1B ) of faucet body  16 . As described above, mode selector switch  24  may be any suitable switch, lever, button or slider to operate diverter  40  (seen in  FIGS. 3 and 4 ), also as known in the art. 
         [0039]    Referring now also to  FIGS. 4, 5, 6, 7A and 7B , the incorporation of main spout  20  and auxiliary spout  26  into a single, integrated faucet, requires a novel, bundled water flow circuitry into a single cluster of five hoses within shank  29  ( FIG. 4 ) as described below in more detail in conjunction with  FIG. 5 . 
         [0040]    As seen in the exploded view of  FIG. 4 , a pair of hot and cold water hoses, respectively referenced  30  and  32 , are connected to hot and cold water supplies, respectively referenced  34  and  36 . A water mixer cartridge  38  ( FIG. 4 ), as known in the art, is located within housing  18  in operative association with selector handle  5 . Hot and cold water is supplied to cartridge  38  via hot and cold water hoses  30  and  32 , and a mixed water supply is delivered from cartridge  38  to external diverter  40 , via intermediate hose  42 . Water reaching diverter  40  may then be supplied either to main spout  20  or to auxiliary spout  26 , via main spout hose  44  or auxiliary spout hose  46 , respectively, depending on the operation of the mode selector switch  24 . 
         [0041]    Referring now particularly to  FIG. 7A , the respective positions of the five hoses are shown, wherein hot water hose  30 , cold water hose  32  and intermediate hose  42  are seen to extend through suitable openings formed in the base  48  of housing  18 . Main spout hose  44  and auxiliary spout hose  46  extend up into main body  16  through the housing  18 , as described below. 
         [0042]    A well-known problem of extendable hoses of spray faucets is that the extendable hose, which is required to move freely through the main faucet body, frequently becomes stuck, even though it is the only hose which extends through the faucet housing. For this reason, it is known to make use of a counterweight to assist in pulling the hose back through the main body of the faucet when seeking to retract the spray head. 
         [0043]    Due to the desire to limit the overall external diameter of the faucet housing to those generally accepted within the field, typically, 35-50 mm, as well as the requirement to provide a flow of water by both the main spout and the auxiliary spout, thus limiting the minimum external diameter of their associated hoses to no less than 8 mm, a specially formed shaped opening  50  is formed in base  48  to accommodate the two hoses. It will be appreciated that main spout hose  44  is static and auxiliary spout hose  46  is arranged for extension and retraction. 
         [0044]    The main spout hose  44  is positioned along a main axis  102 , which is parallel to but spaced from the axis of rotation  103  of the main body  16  and main faucet  20 , by a distance or eccentricity denoted as ‘e 1 ’ ( FIG. 5 ). Furthermore, the auxiliary spout hose  46 , extends through housing  18  along a first auxiliary axis  104  which is parallel to but spaced from the rotation axis  103  by a distance or eccentricity denoted as ‘e 2 ’. 
         [0045]    As seen in  FIG. 5 , the auxiliary spout hose  46  extends through an auxiliary opening  52  formed in an upward facing base portion  56  connecting faucet body  16  to housing  18 , thereafter to connect to the auxiliary spout  26 . Auxiliary opening  52  defines a second auxiliary axis  106  along which the auxiliary spout hose  46  connects to the auxiliary spout  26 . Second auxiliary axis  106  is parallel to but spaced from the axis of rotation  103  by a distance or eccentricity denoted as ‘e 3 ’. 
         [0046]    In order to facilitate extension of the auxiliary spout  26 , auxiliary spout hose  46  is provided with an additional length of hose which is adapted to hang down beneath the faucet and work surface  14  when auxiliary spout  26  is in an at rest, retracted position. When auxiliary spout  26  is extended from the main body  16 , as seen in  FIG. 1B , all or some of the additional length of hose is pulled through shaped opening  50  and auxiliary opening  52 , as required. 
         [0047]    When main spout  20  is at an initial “zero” position relative to the faucet body  16 , as illustrated in  FIG. 2  and as shown schematically as position “ 0 ” in  FIG. 6 , auxiliary spout hose  46  is retracted substantially along axes  104  and  106 , being accommodated by a U-shaped depression portion  54  ( FIG. 7B ) of shaped opening  50 , seen in  FIGS. 7A and 7B . 
         [0048]    However, when main spout  20  is rotated to the position indicated as “I”, for example, thus rotating faucet body  16  relative to housing  18 , this has the effect of applying a rotational force to both main spout hose  44  and auxiliary spout hose  46 , pulling them to one side or another, as shown by arrows  58  and  60  in  FIG. 7A , depending on the direction in which main spout  20  is rotated. The extent of the pulling on each of the hoses is a function of the eccentricities e 1 , e 2  and e 3 , and of the angle of rotation of main spout  20 . Shaped opening is thus formed with additional end depressions  62  and  64 , to accommodate the relative twisting motion of auxiliary spout hose  46  relative to main spout hose  44 , while still allowing sufficient freedom of movement therebetween when auxiliary spout hose  46  is extended or retracted when extending or retracting auxiliary spout  26 . 
         [0049]    While certain features of some embodiments have been illustrated, and described herein, many modifications, substitutions, changes, and equivalents may occur to those skilled in the art. Accordingly, the claims are intended to cover all such modifications, substitutions, changes, and equivalents.

Summary:
A mixer water faucet for installation through a bore in a work surface in proximity to a water supply, includes a stationary housing extending transversely through the bore; a faucet body mounted onto the housing, rotatable relative thereto; a main spout and an auxiliary spout extending from the housing; a main water supply hose for conveying water to the main spout and an auxiliary water supply hose for conveying water to the auxiliary spout, the main water supply hose and the auxiliary water supply hose extending through the housing; and a diverter for selectably directing a supply of water to the main spout and the auxiliary spout.