US2508492A - Drink dispensing device - Google Patents

Description

May 23, 1950 Filed Dec. 14, 1942 T. B. CHACE DRINK DISPENSING DEVICE 2 Sheets-Sheet 1 EL?. j

@y @wlw May 23, 1950 T. B. cHAcE 2,508,492'

DRINK DISPENSING DEVICE Filed Deo. 14, 1942 2 Sheets-Sheet 2 s. v... r

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@Omgv'm Patented May 23, 1950 DRINKI DISPENSING DEVICE .Thomas B.Chace,'Winnetka, Ill., assigner to' The Dole Valve Company, Chicago, Ill., a corporationcf Illinois Application December 14, 1942',- .Serial .No.:468,887

5'Clalms; (Cl. .22S-.21)r

. 1 vThis invention Vrelates to drink dispensing devices and has for its.` objectk toi provide'l a new and improved-.device Aof this description.

The invention has asa furtherobject to provide afdrink` dispensing :device larranged-to I provide a ccmtinuous owf-ofra. carbonated drink.

The inventionhasas a further object to provide a :drink'dis-pensing deviceY having means for accurately proportioning f the syrup vto the l car-'- bonated Water.

The invention has as a further object to-malntain l 4a Vhigh volume offca-rbonation vin the .fdrink after fit-is dispensed.

Carbonated :drinks are dependent vfor their proper. taste uponv a very accurate proportioning of the syrup to the carbonated water.v Withfthe presentl dispensing devices',y thereiore,-=and ythe waythey. are operated, it is not.y possible tomain-u tainJv thisv -accurate proportioning oiV the syrup to the-carbonated water. Anyvariation in the 'size of `the .-glass, for-example,-or in-the extent to which the *classis l-led results Ilnr'avaria-tion Y plyvaries toaver-y largefextentgfthe variation being sometimes'as greatfas `from 90 fpounds to 150 pounds on the standard soda fountain equiplmenti vVlitln' a.'xedforic'e'lopening'for the car- 'bonated'waten itv vvill'be seen that the Vproportion off `carbonated water 'tovl the syrupa will "vary directly-with the'pressureas the syrup is fed iat alltimes by gravity. One of the lobjects of the present device'is to provide a device bymeans of'yvhichi'theproper proportion of thesyrupto the" carbonated Water will.' not.. be interfered', with bythe difference in, pressure --offthe carbonated water supply.

The inventionhas.further` objects which are more particularly, pointed outy in the accompanying.. description.

Referring fnowtto the afdrawingsf Fig.I 1 israesidefelevation'qswith partsabroken vawayshowing onedormvofdrink dispensing r`device-embodying the Yinvention;

:EQ-ig;v .Z :ani'eniarged sectional `iview showing 2. theA syrup and carbonated waterpassageways. valves 'and- -associated Yparts;

Fig-'Bis .a sectional view taken on line 3-3 of Fig.2;

Fig. fi .is an enlarged sectional View taken on line 'v4- 4 `of Fig. 1.

The .-inventionmay, be used with any suitable dispensing device. For purposes of illustration', I have .shown it in connection with a dispensing device of the. type shown vin application Serial Number 406,747, filed August 14,1941, now Patent No. 2,349,441, issued May 23, 1944.. W

Like numerals refer tolike parts throughout the several-gures.

I have .illustrated inf-the drawing one form of .device embodying the invention. In this construction there is provided a receptacle kcomprising an outer casing I andan inner casing 2. Heat insulating material 3 is placed between these two casings. Within the inner casing is a syrup tank 4 containingihe syrup of whatever avor it is desiredto use. Cooling material is placed within-this inner casing .and may .consist of ice.

There is a coil 5 .throughwhich the carbonated Waterpasses Aon its way to the .nozzle and wherein itis cooled bythe cooling material in the inner casing 2. This `coil is connected by a connection .6 to thesource of carbonated water. The coil 5-is connected by a pipe 1 to a flow control valve device ,enclosed .in a casing 8. This ow control valve deviceis arranged to automatically deliver .the same-amount of carbonated water to the discharge nozzle in any given interval `oi' time ,regardless of thevariations in pressure of the entering carbonated water.

The. casing 8 is supported Yin any desired manner.. Within this casing is a tube .9 fixed in positionand.- as herein showny it is connected with the ,sourceof carbonated water by means of -the pipe connection 1 'and coil 5. The tube Sis provided with one or more discharge openings 10 and. preferably has 4a closed end Il. Somelrneans. isprovided for automatically varyf- Ying ,the effective size of the discharge opening orfopeningsl .responsive to variations in the fpressureuofl the .carbonated Water. This vresult .is secured byxprovidinga. tube` l2 V`slidably .surround-ing the-tube 9., The `.tube =|2 is `connected :withv a movable water receptacle l 3 which .has an outlet I4. A springvl engages -a xed part inl thesvcasing 8Z at :one` end andthe'water'z're- .ceptaclev L3 at--the rother.- end, `there being prefer,- a-bly aslaterallytextending part or nparts lli V.on

:thebreceptacle I3 which-isuengaged bythe-spring.

As the pressure decreases.- the spring moves the tube |2 to enlarge the ef fective area of the opening. These `parts are- -v so adjusted that as the pressure varies, the effective sizes of the openings I8 are variedv by the tube l2 so that the same amount of waterv passes therethrough in any given period of time,

the amount of water being wholly independent' of the variations in pressure.

'Ihe casing' is provided with a suitable outlet l1 through whichcarbonated Water passes through a filtering device AI8 and which is connectediwith pipe1 and pipe I9. This pipe |9 passes through the syrup chamber andconnects with a downwardly projecting pipe 2| which is supported upon the main frame 22 by a screw threaded connection therewith. The end of the pipe 2| is normally closed by a valve 23 attached to'a piston 24 sliding in a cylinder 25. The piston connected with the part 4| at one end and removably connected to the part 41 at the other end. The cylinder 45 is provided with a discharge opening 48. When the cylinder is rocked, the discharge opening 48 may be brought into register with an opening 49 so that the syrup may be discharged into `the syrup container 2D.

The cylinder 45 is provided-with a connecting member 56 which is provided with a slot 5|. The

connecting member 56 is removably connected to the cylinder 45 by a pin 52. The handle 53 has a connecting member 54 attached thereto which has a portion 54a which enters the slot 5I in the member 56. `The member 54 is connected with thel handlein any desired manner. As hereir'shown, the member 54 has a knurled end 56 which is driven into the handle 53. This member 54Vpasses through a sleeve 55 on the interior 2.4 hasa groove `26 to retain liquid which may attempt to get past the piston when the piston is moved down. This liquid is discharged through the opening 21.V

The cylinder 25 has removably attached thereto a hollow end piece 28. Springs 29 and 30 engage the end` piece V28 at the lower end and are arranged to exert anV upward pressure on the piston. 24 so as to maintain the valve 23 closed againstthe end of the pipe 2|.

A valve 3| normally `closes the discharge passageway 32 of the syrup chamber 2|). This valve Vis connected with a cylindrical member 33 which extends. down Yalong the cylinder 25 to a point near the end of the end piece 28. A series .of supporting members 34 connectwith the piston V24 and engage the valve 3|. The springs 29 and 3l)V exert sufiicient pressure upon the piston 24 to cause the supportingA members 34 to hold the valve 3| in'its closed position. A pin 35 slides intoan opening in the frame 22 and prevents the rotation of the valver3| and the member 33. VThere is an Youter nozzle member 36 which is removably fastened to the frame 22 in any desired manner, as by means Vor' bayonet joints. The frame 22 is Y provided with one or more bayonet lock pins 31. `VThe nozzle member 86 is provided with bayonet slots 38.'v The outer nozzle member 36 .is placed inposition by moving it up until the bayonet lock pins enter the upper parts of the slots and then partially rotating it.

VThe syrup tank 4 contains a syrup whiclris to be mixed with the carbonated water and is provided with a discharge member 39 Ywhich 'projects into the hollow of the angle syrup conducting member 40. 4The syrup tank is fastened to the member 44 by means o f a holding member 4| which preferably has a threaded connection with the member 4 0. A strainer 42 is associated with thedischarge opening from the Ysyrup container. A fastening device 43 has a threaded connection with the member 4| and extendsV up through the strainer 42. Y The member 4|) Yis connected to the syrup controlling device, which consists of an outer cylinder 44 within which is rockably mounted an inner conical shaped cylinder 45. A spring 46 is of the bushing 56. The connecting member 54 is provided with a groove 51 and there is a pin 58 which projects into this groove and which is held normally therein by the spring 59. VThis permits the connecting member 54 on the handle to'be rocked to Vrock the cylinder 45 to connectand disconnectthe openings 48 and 49. When these openings are connected, an air inletl passageway is connected with a passageway 6|, forming a part of the cylinder 45, and the passageway 6| is connected with the syrup chamber 2|] so that air can pass out to permit syrup to enter the syrup chamber 20.

The handleA 53 is provided with means for limiting its rocking movement when the openings 46 and 48 are in register. This is accomplished by means of a projection 63 on the handle which strikes a limiting stop.

The discharge of the syrup from the chamber 26 is controlled by the Valve 3|. The discharge of the carbonated water from the pipe 2| is controlled by the valve 23 and means is provided for Asimultaneously opening these valves by means of' the handle 53. There is a controlling member 64 rocked by the handle, which has a projection 65 thereon. When the handle is rocked, this projection engages afpart 66 on a member 69 to which is attached the pins 10 and 1| (see Fig. 3). These members 10 and 1|, when the handle is rocked, are vmoved downwardly. They engage the syrup discharge valve 3| so as to move it to discharge syrup from the 'chamber 20. The movement of the syrup discharge valve 3| -moves the pins 34 and this movement of these pins moves the piston'24 and the discharge Valve 23 fordischarging the carbonated water to its open position so that carbonated water and syrup are thusreleased simultaneously.

v The carbonated water escaping, because of the opening of the valve 23, surges up through the openings 12 and 13 and passes down through the space 14 between the nozzle members consisting of the cylinders 25 and 33. The syrup v passes down through the space 15 and the syrup and the carbonated water meet and pass outof the nozzle into the glass Vor other receptacle, thus forming the charged drink.

When the handle is released or moved back to its initial position, the springs 29 and 30 move the valves back to their closed positions.

Since the flow control device in the casing V8 causes the discharge of the same amount of carbonated water in any given interval of time and since the syrup discharged through the discharge opening 32 is not under pressure, this discharge opening 32 is so proportioned as to discharge the same .amount of syrup in any given interval of assumes time and this amountis'suchthatthe amount of irachena-ted-` waterA and;v thea'mountiof: syrupfwill have the proper relative proportions tosecure the proper carbonated drink. ,It` will further be seen that this result is secured regardless of the size of ,the drinking glass or tlieiamount of combined carbonated water and syrupdischarged* into= it. 4 'It Will'further be-seen-tha-t there is lier'efprovideda'dispensing'device'by meansof wliichfthere can-beprovided a'continuous ilbwof a carbonated drink which will always be the same and have the same proportion of syrup and carbonated water.

I have found that by means of this invention there is maintained a high volume of carbonation in the drink after it is dispensed. I have also found that by means of this invention, there is appreciably less loss of carbonation in the drink after it is dispensed and that less foam is created in the drink.

The use and operation of my invention are as follows:

Syrup is placed in the syrup tank 4 and the flow controlling device 8 is connected with a source of carbonated water. Cooling material is placed on the inside of the casing.

When it is desired to dispense a, drink the handle 53 is moved. This movement of the handle first moves the cylinder 45 so as to bring the openings 48 and 49 into register to permit the syrup to pass into the chamber 20. This movement of the handle also causes the controlling device 64 to move so that the projection 65 engages the part 66 and moves the actuating members 10 and 1| so as to move the syrup discharge valve 3| to its open position to permit the escape of the syrup. This syrup then passes down along the space between the nozzle members 33 and 36. At the same time the downward movement of the valve 3| through the agency of the members 1| causes the piston 24 and the charged water valve 23 to be moved downward so as to open the charged water valve 23 and permit the escape of the charged water, which being under pressure, surges up through the openings 12 and 13 and passes down through the space 14 between the nozzle members '25 and 33. The charged Water and the syrup then pass out of the nozzle into the receptacle so as to form the charged drink. By means of the iiow controlling device 8, the proper proportion between the syrup and the charged water is at all times maintained independent of the variations in pressure of the carbonated water.

The movement of the handle is stopped when these openings are in register and when in this position, the passageway 6| of the member 45 has one end connected with the pipe 60 and the other end with the syrup chamber 'so that air may pass into the syrup chamber to permit the proper discharge of the syrup through the open valve 3|.

I claim:

1. A drink dispensing device comprising a casing including a pipe adapted to be connected to a source of carbonated water, an automatic flow regulating valve connected to said pipe including` an orifice whose area is inversely responsive to pressure so as to discharge carbonated water at a constant flow rate irrespective of pressure fluctuations of said source, a syrup container supported in said casing, discharge valve means connected to the outlets of said valve and of said syrup container for maintaining said syrup and carbonated water at a predetermined constant relative proportion irrespective of said pressure iluctuations in the carbonated water source.

2i 'kdrink di'speiis'ingA device coir-1iri2i`iz`-ig` a' aS'- in'gf` includiii"g" a pipeliavin'ga' connection adapted to be' con'necte'd` to a" 'source' oiv carbonated water', a'nautomatic" pressure regulating valve vco'nriec'ted t`o 'said' pipe' comprising' variable' orifice" means i1i 1u|:iin`gz a; fixed eleirien't anda lnim/able l element slidable: Withfrespect to'said iixe'delement,` spring means biasing said movable 'el'emerit'in adirec'- tion't'ending" to l,close saidl oriceimeahs, the carbon'atedI water pressureA inl said valve biasing said movable'A element in an: oppositediretion tending to `open ,said orice means;` thereby discharging carbonatedwater at'ar constant pressure and iiow rate irrespective of pressure fluctuations of said source, a syrup container supported in said casing, an outlet valve connected to said syrup container, a second outlet valve connected to the discharge end of said pressure regulating valve, and operating means for simultaneously opening and closing said outlet valves so as to maintain a constant ratio of syrup to carbonated water in the mixed drink drawn oir irrespective of said pressure nuctuations of said source.

3. A drink dispensing device comprising a casing including a pipe adapted to be connected to a source of carbonated water, an automatic flow regulating valve comprising 1a valve casing containing a iixed tube having an opening, a movable tube surrounding and slidable with respect to said ixed tube to vary the cross-sectional area of said opening, a movable water receptacle connected with said movable tube and with which said opening communicates, an outlet for said valve casing communicating with a discharge opening in said water receptacle, a spring surrounding said water receptacle having one end engaging a part of said movable tube and the other end engaging a part of the casing, said flow regulating valve thereby discharging a constant iiow rate of carbonated water, a syrup container, and discharge valve means connected to the discharge end of said regulating valve and to said syrup container for simultaneously discharging mixed syrup and carbonated water at a constant relative proportion irrespective of said pressure uctuations in said carbonated water source.

4. The combination with a liquid dispensing apparatus of the class wherein there is a supply of carbonated fluid, a liquid container, and a discharge valve means connected to outlets of said supply and said container for maintaining a constant ratio of liquid to carbonated fluid in a liquid mixture, of an automatic iiow regulating valve which acts upon the supply of carbonated .iiuid so as to discharge the carbonated fluid at a constant flow rate irrespective of pressure fluctuations of said supply of carbonated uid, said flow regulating Valve including spring loaded iluid receiving elements movable relative to each other in response to variations in pressure of said supply of carbonated uid to control the flow of fluid between the elements and to said discharge valve means.

5. In a liquid dispensing apparatus of the type wherein there is a supply of fluid under pressure, a liquid container, and a discharge valve means connected to outlets of said supply and said container for maintaining a constant ratio of liquid to said fluid to provide a predetermined liquid mixture, an automatic ow regulating valve comprising a valve casing containing a fixed tube having an opening connected to said uid supply, a movable tube surrounding and slidable with respect to said fixed tube to vary the effective 7l cross-sectional area of said opening, a movable fluid pressure. receptacle connected with said movable tube and with which said opening communicates, an outlet Vfor said valve casing communicating with the diseharge opening in said receptacle and with said discharge valve, and spring means surrounding said receptacle having one end engaging a part of said movable tube and the other end engaging a part of the casing, said flow regulating valve discharging a constant flow rate of iiuid under pressure to said discharge valve means irrespective of the pressure variation THOMAS B. CHACE.

8 ...REFERENCES CITED vNumber 1,212,186 2,069,022 2,243,675

4UNITED STATES PATENTS Name Date vCornish Jan. 16, 1917 Sisk Jan. 26, 1937 Koenigr May 27, 1941 Lund May 23, 1944

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