US3104674A - Mixing faucet - Google Patents

Description

Sept. 24, 1963 1.. w. BILLS ETAL MIXING FAUCET 2 Sheets-Sheet l Filed June 24, 1960 LL 0V0 W. BILLS ROBERT S. QUES/NBERRV IN VE N 7' OPS HUEBNE'P 8 WORREL 14 77'O/PNEVS /06 30/7 55 m7 G 7O Sept. 24, 1963 1.. w. BILLS ETAL MIXING FAUCET 2 Sheets-Sheet 2 Filed June 24. 1960 L L LLOYD w BILLS ROBERT s. QUES/NBERRV IN VE N 7 OR; HUEBNER & WORREL A77'ORNEYS United States Patent 3,104,674 MHXHJG FAUQET Lioyd W. Bills, Downey, and Robert S. Quesinherry,

Southgate, Caiif., assignors to Mark Chemical (Joinpany, North Hollywood, Calif., a limited partnership Filed June 24, 196i), Ser. No. 38,571 9 Claims. (Ci. 137218) The present invention relates to a mixing faucet and more particularly to a multi-position faucet for selectively obtaining predetermined mixtures of various additive fluids and a common carrier fluid in response to the positioning of a discharge spout of the faucet.

The subject invention is concerned with the problem of adding predetermined amounts of fluid materials to water, or other suitable fluid carrier, in order to obtain a composite fluid having desired characteristics. In washing dishes, for example, various amounts of liquidsoap, detergent, and/or disinfectant is added to the water to provide desired solutions. In the past, an estimated amount of the additive has usually been poured by hand directly from a container thereof into the water, or perhaps, for greater measuring accuracy, first poured into a measuring vessel. While manual mixing'of this type may be satisfactory for domestic use, it is inconvenient for restaurants, taverns, and other public dining and drinking establishments, particularly those subject to statutory sanitation requirements. In such places, laws usually prescribe standards for washing dishes and tableware, normally requiring washing in a detergent bath and rinsing in water of predetermined temperature and/ or disinfectant solution. Therefore, it is desirable to obtain solutions of predetermined concentrations, conveniently, rap idly, and at relatively frequent intervals.

Accordingly, it is an object of the present invention to obtain mixtures of various fluids conveniently, rapidly, accurately, and with a minimum of waste.

Another object is to provide a mixing faucet having a selectively positionable spout for obtaining predetermined mixtures of various fluids with a common fluid, for obtaining the common fluid alone, and for completely interrupting the discharge of fluid from the faucet.

Another object is to'provide a faucet, having parts mov able between various positions to enable or to preclude the flow of fluid, and wherein dependable fluid seals are maintained to prevent leakage.

Another object is to enable the complete emptying of the discharge spout of a faucet subsequent to termination of the flow of fluid through the spout.

Another object is to provide a faucet having a plurality of sets of passages adapted for registration and nonregistration respectively to effect and to preclude fluid flow and wherein flow of fluid through any set of passages is completely interrupted before flow of fluid is established in a different set of passages thereby preventing undesirable intermingling of fluids.

Another object is to provide a faucet of separable parts which are easy to assemble and disassemble, durable, adapted for reorientation for convenience or greater wear, and which are readily maintained or replaced.

These, together with other objects, will become more fully apparent upon reference to the following specification and drawings.

In the drawings:

FIG. 1 is a top plan view of a sink and a faucet, embodying the principles of the present invention, mounted on the sink with the faucet shown in full lines in a neutral non-mixing position and in dashed lines in laterally angulated mixing positions.

FIG. 2 is a vertical section taken on line 22 in FIG. 1 with a portion of the sink being broken away, and also showing supply tanks connected to the faucet.

3,l6 4,%74 Patented Sept. 24, 1963 FIG. 3 is a somewhat enlarged, fragmentary, vertical section taken on line 3-3 in FIG. 1 with the faucet in its central position and with portions of the structure being broken away for illustrative convenience.

FIG. 4 is a somewhat enlarged, fragmentary, vertical section taken through the faucet on line 44 of FIG. 1 but with the faucet in one of the mixing positions, illustrated in FIG. 1.

FIG. 5 is a fragmentary, horizontal section taken on a plane at a position represented by line 5-5 in FIG. 3.

FIG. 6 is a fragmentary, horizontal section taken on a plane at a position represented by line 6-6 in FIG. 3.

FIG. 7 is a horizontal section taken on a plane at a position represented by line 7-7 in FIG. 3.

FIG. 8 is a horizontal section taken on a plane at a position represented by line 88 in FIG. 3 and showing parts of thefaucet in dashed lines.

Referring more particularly to the drawings, a sink It} includes a left mixture compartment 11, a center neutral compartment 12, and a right mixture compartment 13, as seen in FIG. 1. A faucet, embodying the principles of the present invention, is generally indicated at 15 and includes a lower, annular mounting body 17 having a central bore 13 and a lower, internally threaded inlet port 19. A fluid supply pipe 241 is upwardly extended through the rear flange 14 of the sink and is main? tained thereby in an upright position. The supply pipe is screw-threaded into the inlet port and supports the mounting body in a substantially horizontal position in circumscribing relation to an upright axis concentric to the central bore. The body is thus disposed in upwardly spaced relation to the rear flange of the sink. Although not shown, the supply pipe is adapted for connection to a source of carrier fluid, such as Water, under pressure.

The mounting body 17 has an upper, inner, annular rim 25; an outer, upper, annular rim 26; and a pair of keys 2.7 inwardly extended from the inner rim in diametrically opposed relation to each other on opposite sides of the central bore 18. A bearing ring 29, preferably but not limited to SAE 660 bronze or suitable plastic such as Teflon, is press-fit, or otherwise dependably retained between the inner and outer rims incircumscribing, concentric relation to the bore 18. The ring provides a flat, upper, bearing surface 30 coplanar with the upper edges of the rims.

The mounting body 17 also has an internal, fluid supply passage communicating with the inlet port 19, and mixing and non-mixing outlet ports 36 and 37, respectively, upwardly extended from the passage through the bearing ring and diametricallyspaced on opposite sides of the bore 18. Therefore, the supply passage interconnects the outlet port and the inlet port.

An annular valve seat is screw-threaded in the inlet port 19, as best illustrated in FIG. 3. A ball-check valve member 46 is located in the inlet port on the opposite side of the valve seat from the supply pipe 21. This check valve member is movable between a seated position against the valve seat thereby to block passage of fluid from the supply passage into the supply pipe, and an unseated position spaced upwardly from the valve seat and incident to pressure of fluid upwardly thereagainst to permit passage of fluid from the supply pipe into the supply passage.

An upper fluid delivery head 59 is supported on the mounting body 17 and includes a cylindrical, downwardly extended outer flange 51, approximately the same diameter as, and in upwardly adjacent relation to the outer rim 2-5. The delivery head also has a cylindrical inner boss 52 circumferentially inwardly spaced from the flange 51. The boss provides a peripheral surface 53 and an internally threaded socket 54 coaxial with the bore 18. The inner boss also provides a downwardly disposed intermediate surface 56, and a tongue 57 is radially inwardly extended from this boss into the socket. The boss further provides an elongated, spring-receiving pocket 58 extended'into the boss from the surface 56. A bolt 59 is screw-threadably received in the pocket at the opposite end thereof from the surface 56. The fluid delivery head has a plurality of cylindrical cavities 66 extended upwardly therein from its lower surface, between the flange 51 and the inner boss, and in triangular relation to each other about the boss, as best seen in FIG. 6. While not to be so limited, three such cavities are provided in the illustrated embodiment.

A pivot bolt 65 includes a lower head 66, an elongated shank 68 coaxially upwardly extended through the bore 18 of the mounting body 17 and screw-threadably received in the socket 54 of the delivery head thereby being releasably connected to the delivery head. A metal washer 69 and a Teflon Washer. 70 are respectively supported on the bolt head in circumsoribing relation to the shank and between the body and the bolt head. i A cylindrical bushing 75 is releasably slidably fitted in the bore 18 of the mounting body '17 in circumscribing, rotatably fitted relation to the shank 68 of the pivot bolt 65. The bushing has a lower bearing portion '76 within which the pivot bolt is free to rotate, and an upper locking portion 77 extended upwardly out of the mounting body and providing a pair of diametrically opposite locking notches 7 8, as illustrated -ir1.FIGS. 6 and 7, on opposite sides of the shank of the pivot bolt.

The delivery head 50 provides a plurality of fluid delivery passages 85 each having an inlet 86 and an outlet 87. As best seen in FIG. 5, it is to be noted that in the illustrated embodiment, three such passages are provided, two of the passages being for mixing purposes and being longer than, and located on opposite sides of a shorter, non-mixing, intermediate passage. The inlets are extended downwardly through the lower surface of the head and are circumferentially spaced around the upper bore 54 individually between the cavities 60 and in triangular relation with each other, as best shown in FIG. 6. The outlets are extended outwardly through the peripheral surface 53 and are in side-by-side relation to each other, as is evident'in FIGS. 2 and 5. Elongated spouts 88 have straight inner'ends releasably fitted in the outlets of the delivery passages and dependably retained therein by means of set screws 89. The spouts extend outwardly in side-*by-side relation from the delivery head and provide outer, downwardly turned, ends. The spouts are adapted selectively to extend over the compartments 11, 12, and 13 of the sink incident to rotation of the delivery head relative to the mounting body 17 about an upright axis defined :by the pivot bolt 65.

With reference to FIGS. 3 and 4, mixing and carrier coupling tubes 96 and 97, respectively, are releasably fitted in the inlets 36 of the delivery passages 85. There are two mixing tubes in the illustrated embodiment and these are individually fitted in the inlets of'the longer, outer delivery passages; the single carrier tube is fitted in the inlet of the shorter, intermediate delivery passage. The mixing tubes have upper portions 99 upwardly extended from the inlets into the passages 85 and upper annular rims 109. The tubes also have lower male portions 101 downwardly extended from the inlets between the boss 52 and the outer flange 51 but terminated upwardly from the surface 56. It is to be noted that the carrier coupling tube has only a lower male portion 101 downwardly extended like the mixing tubes and does not provide an upper portion, as 99, like the mixing tubes. Upper and lower, axially spaced, O-rings 102 circumscribe the coupling tubes, the upper O-rings being in fluid sealing engagement between the tubes and the delivery head 50 within the inlets while the lower O-rings are around the lower male portions of the tubes. Perforate brackets 183 are rigidly secured to the delivery head within the outer delivery passages and dependably receive the upper portions of the tubes below said rims lllil.

A sealing ring 1e4- of rigid material concentricallycircumscribes the pivot bolt 65 between the outer flange 51 ment between the tubes and the sealing ring within the coupling sockets. The ring provides a pair of mixing apertures 107 and asi-ngle non-mixing aperture 1&8 concentrically, individually, downwardly extended from the? coupling sockets through the sealing surface of the ring. Although the ring is movable toward and away from the delivery head and the mounting body 17, compressionsprings 199 are individually fitted in the cavities 60 and bear against the sealing ring yieldably urging the sealing surface into fluid-tight engagement with the bearing sur face 36. With reference to FIG. 6, the springs are in triangular relation about the pivot bolt 65 and are individually located between the apertures 108 and 109. That is, they are located at the corners of an imaginary, equi lateral triangle. The slidably interfitted, coupling tubes and sockets thereby interconnect the apertures in the ring with their respective delivery passages 85. Also, the

coupled tubes and sockets connect the sealing ring to the delivery head for unitary rotation relative to the mounting body.

An annular index plate 110 is rotatably circumscribingly fitted about the locking portion 77 of the bushing 75,,

as best seen in FIGS. 3 and 7, and is releasably fitted within the inner rim 25 of the mounting body 17. The plate has diametrically related, outwardly opening,

notches 111 releasably receiving the keys 27 thereby precluding rotation of the index plate relative to the body. The plate also provides a plurality of upwardly disposed,

fractionally spherical indentations 112a, 112b, 1120, and

112d having centers lying on a common circle concentric to the pivot bolt 65 and being spaced circumferentially of the bolt. The radius of said common circle is substantially equal to the radial distance between the longitudinal axis of the pocket 58 and the pivot bolt. An elongated, detent compressionspring 114 is positioned in the pocket and has an inner end portion engaging the adjusting bolt 59 and an outer end portion. A substantially spherical detent 115, of smaller diameter than the pocket and partially located therein, is fitted in the outer end portion of the detent spring and resiliently, yieldably urged thereby against the index plate. one of the indentations 112 is axially aligned-with the pocket, the detent is spring-urged into the indentation The spring is yieldable, however, to permit rotation of the head 56 relative to the body 17 whereby the detent rides upwardly out of an indentation for movement in a circular path, defined by said common circle, successively into and out of the other indentations. As believed evident, there is a distinctive click as the detent drops into each indentation. Reception of the detent in any one of the indentations serves to resist rotation of the head relative to the body. thereby dependably to latch or maintain the head in a series of selected positions relative to the body unless forcibly displaced.

With reference to FIG. 7, it is to be noted that the axes of the outlet ports 36 and 37 lie in a first common plane bisecting the body 17 and passing diametrically through the flange 51. With the index plate 110 fitted within the inner rim 25 by the mating of the keys 27 and the notches 111, the indentations 112b are also bisected by this plane. The indentations 112a and 112s are respectively located on imaginery radial lines emanating from the axis of the pivot bolt 65 and substantially equal- As best ly angularly spaced from said common plane.

When any illustrated in FIG. 5, imaginery radial lines passing'outwardly from the pivot bolt through the mixing tubes 96 are substantially equally angularly spaced from a second common plane, diametrically passing through the nonmixing tube 97, the pocket '58 and detent 115, and the cavity 69 located between said mixing tubes, by angular amounts substantially equal to the angle between the radial lines of the indentations 112a and 1120 and said second common plane. In the illustrated embodiment, this common angle is fifty degrees and is indicated by the capital letter A. Obviously the invention is not limited to this precise angle. It is now believed evident that the non-mixing tube 97 is equidistantly circumferentially spaced from the mixing tubes by an angle B comple-. mentary to angle A. Further, the outlet ports 35 and 37 and the inlet apertures 1&7 and 183 are all substantially equally radially spaced from the pivot bolt 65.

The delivery head 50 is rotatable relative to the mounting body 17 about the axis of the pivot bolt 65 into a neutral non-mixing position, shown in FIGS. 1, 2 and 3, with the detent 115 in one of the indentations 11212, the non-mixing aperture 1% in precise registration with the non-mixing outlet port 37, and with the spouts 88 forwardly projected from the faucet 15 over the center compartment 12 of the sink 10. In this position, bothof the mixing apertures 107 are spaced from the outlet port 36. From said neutral position, the head is rotatable in opposite directions into a pair of mixing positions, fifty degrees displaced on either side of the neutral position in the illustrated embodiment, with the detent respectively fitted in one of the indentations 112:: or 112a immediately adjacent to said indentation 112b, with-one of the mixing apertures 167 in precise registration with the mixing outlet port 36, and with the spouts 88 extended over one of the left or right compartments 11 or 13 of the sink; in either of the mixing positions, the non-mixing aperture and outlet port 37 are offset from each other. It is to be observed that in moving through these three positions, only three of the indentations are employed. Additional indentations are provided so that the index plate 11% can simply be released from the keys 27 and rotated through one hundred and eighty degrees on the pivot bolt 65 when one side of the index plate becomes worn. The provision of these other indentations also facilitates assembly of the faucet and allows the head initially to be mounted on the body with the spouts extended on the same or opposite side of the pivot bolt from the inlet port 19.

It is significant to note that the sealing ring 1% is yieldably urged into fluid-tight engagement with the bearing ring 29 by the springs 169 during the described rotatable positioning of the delivery head This prevents leakage of fluid outwardly between the sealing and bearing rings from the ports 36 and 37. It is also to be noted that'in movement of the body between its respective mixing and non-mixing positions, registration between the outlet ports 36 or 37 and the apertures 1117 and 168 is completely interrupted before registration is re-established between any other port and aperture. Thus, between said predetermined mixing and non-mixing positions, the sealing ring covers the outlet ports and completely interrupts flow of fluid upwardly therethrough from the fluid supply passage 35.

With reference to FIG. 4, the delivery head 50 provides a pair of upwardly extended, annular shoulders 12%, circumscribing vent openings 121. Annular valve seats 122 are screw-threadably fitted in the shoulders in circumscribing relation to the vent openings and provide air passageways 123 opening outwardly to the atmosphere. Vent caps 124 are secured to the valve seats by means of rivets 125 and provide annular skirts downwardly extended in circumferentially spaced relation to the valve seats and in outwardly spaced relation to said air passageways whereby flow of air is permitted into and out of the delivery passages but entry of dirt and other foreign particles into the passages is minimized.

With continued reference to FIG. 4, elongated guide pins 13s are rigidly secured to the valve seats 122 and extended coaxially downwardly in the vent openings 121. Circular valve discs 131, preferably of resiliently compressible material such as rubber, are fitted in the vent openings for axial movement therein between lower posiions in fluid-tight engagement with their respectively adjacent rims 1% and upper positions in fluid-tight engagement with their respectively adjacent valve seats. Tubular hubs 132 are concentrically upwardly extended from the valve discs and axially slidably receive the guide pins for guiding said axial movement of thevalve discs between their upper and lower positions.

Tubular venturis 138 are individually fitted in the delivery passages 35 between the inlets as and outlets 87 thereof. Each venturi has an inlet bore 139 disposed toward the inlet of its passage, an outlet bore 1461 directed toward its respective outlet, and a constricted throat 142. O-rings circumscribe the venturis andare in fluidtight engagement with the delivery head about the passages 35. Each venturi also has an additive inlet port 147 opening upwardly from and communicating with its respective throat.

The delivery head 5% provides raised portions upwardly extended above the venturis 138 and additive inlet bores 156 in said raised portions communicating with the additive inlet ports 147. Tubular intake fittings 158 are screw-threaded in the bores 1'56 and extend upwardly from the raised portions. Elongated, flexible hoses 16thv are releasably slidably fitted in fluid-tight relation over the fittings. Orifice members 16 2 are releasably fitted within the hoses and provide restricted orifices 163 of predetermined cross-sectional area directed toward the fittings. The hoses are individually connected to containers of fluid additives, such as a disinfectant and a detergent, located below the faucet 15, as shown in FIG. 2. i

Operation The operation of the described embodiment of the subjeet invention is believed to be readily apparent and is briefly summarized at this point. It is assumed that the subject faucet 15 is used in a restaurant where it is neces sary to wash dishes in a detergent solution and thereafter to rinse the dishes in a disinfectant solution as well as in plain water. Accordingly, the hoses 169 are individually connected to containers 170 of liquid detergent and liquid disinfectant and the containers located below the faucet. It is to'be noted that the containers are otherwise open to atmospheric pressure. a The supply pipe 21 is connected to a source of plain water under pressure and controllable by means of a valve, not shown.

In order tofill the center compartment 12 with plain water, the delivery head 50 is rotated into its non-mixing, neutral position with the spouts 88 extended over the center compartment. The valve, not shown, in the supply pipe 21 is turned on whereby plain water under pressure passes upwardly through the inlet port 19 unseating the ball-check valve member 46, and thence directly upwardly into the non-mixing delivery passage 85 through the non-mixing coupling tube 97, and thence outwardly for discharge into the center compartment through the center spout. Inasmuch as the carrier fluid does not enter either of the mixing or outer delivery passages 85,nei-t her de tergent nor disinfectant is drawn into these delivery passages and no fluid is discharged from either side spout. The flow of plain carrier fluid into the center compartment is interrupted by rotating the delivery head to an intermediate position between the neutral non-mixing position and either side mixing position, or by turning ofi the valve, not shown, in the supply pipe.

In order to discharge a detergent solution into the left compartment 11, for example, the delivery head 50 is 7 swung to the left, as viewed in FIG. 1, into its mixing position with the spouts 88 extended over the left compartment. This brings the mixing aperture 107, associated wtih the left spout and delivery passage 85, into registration with the mixing outlet port 36, as viewed in FIG. 4. The delivery head is releasably retained in this position by the detent 115. Carrier fluid flows from the supply passage 35 upwardly through the registering coupling tube 96 and outlet port 36, and into the delivery passage. In so doing, carrier fluid forces the valve disc 1'31 upwardly into engagement with the valve seat 122 to block flow of fluid upwardly through the vent opening 121. Carrier fluid under pressure thus passes downwardly around the bracket 102 and is forced through the venturi 13 8 to create a low pressure in the throat 142 of the venturi. Atmospheric pressure thereby forces detergent solution from its container 170 upwardly through the hose 1 60 and the associated orifice member 16-2 into the venturi. The detergent is mixed with the carrier fluid and the composite fluid mixture discharged into the left compartment of the sink 10 through the left spout.

As before, the flow of detergent solution from the spout 88 is turned off either by shutting off the flow of carrier fluid in the supply pipe 21 or by rotating the delivery head 50 out of its mixing position. In the latter event, registration between the coupling tube 96 and the mixing outlet port 36 is interrupted. With pressure relieved from under the raised valve disc 1-31, the latter descends into its lower position in fluid-tight engagement with the upper rim 100 of the coupling tube. This allows air to enter the delivery passage .85 through the passageway 123, the vent opening 121, and around the bracket 102, thereby assuring complete emptying of both carrier fluid and detergent from the spout. In other words, a partial vacuum is not created in the delivery passage back of the venturi. Also, seating of the valve member 46, when the carrier water pressure is turned oif, restricts reverse flow of fluid and facilitates seating of the valve disc 131 thereby more quickly and positively to open the delivery passage to atmospheric pressure. Since the flow of detergent in the hose 160 is interrupted, there is no further discharge of detergent into the ventuni.

It is believed evident that a solution of disinfectant can be discharged into the right compartment 13 of the sink 10 simply by swinging the delivery head 50 into its right mixing position, as viewed in FIG. 1. It is to be noted that the amount of additive drawn into each venturi 13-8 can readily be varied by proper selection of its respective orifice member 162. That is, orifice members with larger or smaller orifices 163 are selected depending on Whether more or less additive is desired. Once the desired proportion of additive to carrier is established and the proper orifice member inserted, solutions of disinfectant, detergent, or other materials, of desired concentration can be conveniently, accurately, and rapidly obtained simply by swinging the delivery head into its mixing positions.

From the foregoing, it will be understood that a mixing faucet has been provided which enables the mixing of various fluids individually and selectively with a oom' mon carrier fluid or the obtaining of the carrier fluid alone. The faucet provides the mixing and discharge of the composite fluids in a convenient, rapid, and accurate manner and with no waste or spillage of fluid. Also, if desired, the faucet is movable to a. position where flow of fluid is completely interrupted. f significance, the

faucet breaks the flow of fluid out of any given spout and interrupts mixing action before flow of fluid is initiated in any other spout so that there is no undesired intermingling of fluids.

Although the invention has been herein shown and described in what is conceived .to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of the invention, which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claims I so as to embrace any and all equivalent devices and apparatus.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

1. A faucet for selectively and individually mixing a plurality of additive fluids with a common carrier fluid comprising a mounting body having a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an outlet port; a fluid delivery head having a plurality of elongated mixing passages each having an inlet, and an outlet spaced longi-j tudinally of its passage from the inlet; means interconnectiug the head and the body for movement between positions with said inlets alternately and individually in registration with the outlet port; and venturis individually positioned in the mixing passages between their respective inlets and outlets and having constricted throat port-ions, the head having additive inlets individually opening into the throat portons of the venturis and individually adapted for connection to sources of additive fluids whereby carrier fluid passing through each of said venturis draws additive fluid into the mixing passages for mixture with f the carrier fluid when its respective inlet is in registration with the outlet port.

2. The faucet of claim 1 wherein the head has a plu 7 rality of vents individually opening from the. passages to the atmosphere between their respective venturis and inlets; and including valve means mounted in the passages of the body for movement between positions closing their respective vents incident to the flow. of fluid from their respective inlets to their respective outlets and positions opening the vents incident to the interruption of said fluid flow thereby to preclude the formation of a vacuum in their respective passages between the venturis and the inlets and thereby to permit complete emptying of .flu-id y from their respective outlets.

3. T he faucet of claim 2 including a check valve mount ed in the supply passage of the body and movable between an open position incident to the flow of fluid from the supply passage to the outlet port and a position re stricting reverse flow of fluid from the outlet port back into the supply passage thereby to facilitate opening of said valve means incident to said interruption of the fluid flow.

4. A faucet for selectively and individually mixing a plurality of additive fluids with a common carrier fluid comprising a lower mounting body having. a flat, upper bearing surface, and a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an :outlet port in said surface; an up-- per fluid delivery 'head having a lower surface and including a plurality of elongated mixing passages, each mixing passage having an inlet, and an outlet spaced longitudinally from the inlet, the inlets of the mixing passages being extended downwardly through the lower surface of the head; means interconnecting the head and the body in such a manner that said lower surface of the head and said upper bearing surface of the body are in opposed relation to each other for movement between positions with said inlets alternately and individually registration with the outlet port; and venturis individually positioned in the mixing passages between their respective inlets and outlets and having constricted throat portions, the head having additive inlets individually opening into the throat portions of the venturis and individually adapted for connection to sources of additive fluids whereby carrier fluid passing through each of said venturis draws additive fluid into the mixing passages for mixture with the carrier fluid when its respective inlet is in registration A i with the outlet port.

5. In combination with a pair of containers of additive fluid open to the atmosphere and a support, a faucet for selectively and individually mixing the additive fluids with a common carrier fluid comprising a mounting body san ers borne by the support and having a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an outlet port; a fluid delivery head having a plurality of elongated mixing passages each having an inlet, and an outlet spaced longitudinally from the inlet; means interconnecting the sad and the body for movement between positions with said inlets alternately and individually in registration with the outlet port; venturis individually positioned in the mixing passages above the containers between their respective inlets and outlets and having constricted throat portions, the head having additive inlets individually opening into the throat portions of the venturis; and fluid conducting ducts individually interconnecting the containers and the additive inlets whereby carrier fluid passing through said venturis draws additive fluid into their respective mixing passages for mixture with the carrier fluid when its respective inlet is in registration with the outlet port.

6. The combination of claim including orifice members releasahly fitted in the ducts having restricted orifices of predetermined diameter for controlling the quantity of additive drawn into the mixing passages.

7. A faucet for selectively controlling the flow of a carrier fluid and the mixing of an additive fluid with the carrier fluid comprising a mounting body having a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an outlet port; a fluid delivery head havin a plurality of elongated fluid flow passages, including at least one elongated mixing passage, each passage having an inlet and an outlet spaced longitudinally of its passage from the inlet; means interconnecting the head and the body for movement between positions with said inlets alternately and individually in registration with the carrier fluid outlet port; and a venturi positioned in the mixing passage between its respective inlet and outlet and having a constricted throat portion, the head having an additive inlet opening into said throat portion and adapted for connection to a source of additive fluid whereby carrier fluid passing through said venturi draws additive fluid into the mixing passage for mixture With the carrier fluid when its respective inlet is in registration With the outlet port.

8. A faucet for se'lcctively'controlling the flow of a carrier fluid and also the mixing of an additive fluid with the carrier fluid comprising a mounting body having a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an outlet port; a fluid delivery head having a plurality of elongated fluid flow passages, including at least one elongated mixing passage, each passage having an inlet and an outlet spaced longitudinally of its passage from the inlet, means interconnecting the head and the body for movement between positions with said inlets alternately and individually in fluid communication With the carrier fluid outlet port; a source of supply of additive fluid; conduit means interconnecting said additive fluid source and said mixing passage at a point intermediate its respective inlet and outlet; and flow control means disposed in communication with said mixing passage, arranged in control relationship with said additive fluid conduitmeans, and being responsive to carrier fluid flowing through said mixing passage 7 thereby to introduce additive fluid into the mixing passage for mixture with the carrier fluid when the respective inlet of said mixing passage is in communication with the outlet port.

9. A faucet for selectively controlling the flow of a common carrier fluid and individually mixing a plurality of additive fluids with the common carrier fluid comprising a mounting body having a fluid supply passage adapted for connection to a source of such carrier fluid under pressure and providing an outlet port; a fluid delivery head having a plurality of elongated fluid flow passages, including a plurality of elongated mixing passages, each passage having an inlet and an outlet spaced longitudinally of its passage from the inlet; means interconnecting the head and the body for movement between positions with said inlets alternately and individually in communication with the carrier fluid outlet port; a plurality of individual sources of supply of additive fluids; conduit means individually interconnecting each of said additive fluid sources and a respective one of said mixing passages at a point intermediate its respective inlet and outlet; and a plurality of flow control means, each individually disposed in communication with a respective one of said mixing passages, arranged in control relationship with a respective one of said additive fluid conduit means and being responsive to carrier fluid flowing through its respective mixing passage thereby to introduce additive fluid into said respective mixing passage for mixture With the carrier fluid when the respective inlet of said respective mixing passage is in communication with the outlet port.

References Qited in the file of this patent UNITED STATES PATENTS 674,188 Schratz May 14, 1901 1,939,141 Sohultis Dec. 12, 1933 2,303,037 Fredrickson Nov. 24, 1942 2,376,565 Williams May 22, 1945 2,469,921 Hoge May 10, 1949

Claims (1)

1. A FAUCET FOR SELECTIVELY AND INDIVIDUALLY MIXING A PLURALITY OF ADDITIVE FLUIDS WITH A COMMON CARRIER FLUID COMPRISING A MOUNTING BODY HAVING A FLUID SUPPLY PASSAGE ADAPTED FOR CONNECTION TO A SOURCE OF SUCH CARRIER FLUID UNDER PRESSURE AND PROVIDING AN OUTLET PORT; A FLUID DELIVERY HEAD HAVING A PLURALITY OF ELONGATED MIXING PASSAGES EACH HAVING AN INLET, AND AN OUTLET SPACED LONGITUDINALLY OF ITS PASSAGE FROM THE INLET; MEANS INTERCONNECTING THE HEAD AND THE BODY FOR MOVEMENT BETWEEN POSITIONS WITH SAID INLETS ALTERNATELY AND INDIVIDUALLY IN REGISTRATION WITH THE OUTLET PORT; AND VENTURIS INDIVIDUALLY POSITIONED IN THE MIXING PASSAGES BETWEEN THEIR RESPECTIVE INLETS AND OUTLETS AND HAVING CONSTRICTED THROAT PORTIONS, THE HEAD HAVING ADDITIVE INLETS INDIVIDUALLY OPENING INTO THE THROAT PORTONS OF THE VENTURIS AND INDIVIDUALLY ADAPTED FOR CONNECTION TO SOURCES OF ADDITIVE FLUIDS WHEREBY CARRIER FLUID PASSING THROUGH EACH OF SAID VENTURIS DRAWS ADDITIVE FLUID INTO THE MIXING PASSAGES FOR MIXTURE WITH THE CARRIER FLUID WHEN ITS RESPECTIVE INLET IS IN REGISTRATION WITH THE OUTLET PORT.

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