US1415185A - Method and means for dispensing carbonated beverages - Google Patents

Description

P. J. MAGUIRE.

METHOD AND MEANS FOR DISPENSING CARBONATED BEVERAGES.

APPLlCATION FILED JUNE 23- l9l9.

Patented May 9, 1922.

charts stares aras @FFHCE.

rs'rmcx J. MAeUm'E, or DETBOIT,-MICH1GAN.

ina'rnon Armrmans lnoamsrnnsnte cannonsrnn nnvnnaensl 1 '0 all whom it may concern:

. Be it known that I, PATRICK. J. Mace-ma,

a citizen of the United States, residing at Detroit, county of Wayne, State of Michiful mprovement in Methods and Means for Dispensing Carbonated Beverages; and declare the following to be a fulh'clear, and

exact descriptio rof the same,'su'ch as will enable others skilled in the art towhich itpertains to make'and use the same, referencebeing had to the accompanying-drawings, which form a part of this specification.

This invention relatesv to" method and means for dispensing carbonated beverages,

and its objectis to provide a. method and -apparatus by means of which beverages havof time consumed in drawing the beverage.-

The principal feature ofithisinvention is involved in the method and means of first drawing the carbonated liquid from the sup ply tank into a sealed, receptacle provided;

with an air chamber at the upper end'iiito which atmosphere of the' receptacle is,

fluid so that when forced by the 'inflowing h h d h e te 'qui t erethe receptacle is fill in is still under I practically an equal pressure to that in the supply tank and, upon the opening of the valve for discharge of the liquid, the pressure on the surface of liquid is released only artiallydue' to'the fact that the pressure w' be-maintained to a certain extentby leakage from the's'aid air chamber whereby the pressure is not entirely relieved instantaneously but on the contrary is released radually so that foaming is not produced. This general object and the'several novel features of the construction-of an apparatus by means of which the object may be attained are hereinafter more fully described and claimed and the preferred form of apparatus is shown in the accompanying drawings in which Fig. l is a vertical section of a dispensing apparatus embodying my invention,

Specificationof Letters Patent.

gani have invented a certain new and use-V ner 'found convenient.

Patented May 9, 1922.

Application fiIedJuue 23, 1919. ScrialNa SDGJM.

- lea-perspective view of a valve 7 utilized in the discharge line.

Flg. 3 shows an alternative form of can struction of a receptacle into which the beverage isfirst drawnfrom the supply tank previous to its'being dispensed. Y

The supply tank and intermediate pressure releasing tank may be positioned any convenient manner preferably hidden from view'for instance by being laced back of a shield 01' wall member 1 so t at only the discharge faucet, indicated at 2, is exposed to public view. Such disposition of the-apparatuahowever is not essential as the severalelements may be disposed in any man- 'lhe beverage tobe dispensed is the usual supply tank 3 under pressure and this tank is provided with the usual dischar e valve 4 connected with a conduit 5 leading to the coils 6 of a refrigerating unit by means of which the beverage is cooledprior to dispensing. In the refer-red form of construction, the pipe? leads from the cooling coils into a tubular memher 8- extending through the artition 1, Thistubular member is provide atthe for ward end with a valve 9 securedto the end ,of the casin 8. This valve member is provided with tie usual tapered valve 10 maintained on its seat in the usual manneras by -a nut 11 on the threaded projecting stem at the small end of'the valve. On the inner end of this casing S is supported a hermeti- -cally sealed receptacle 12, and a second conduit-13 leads from the valve seat to the interior of the receptacle 12 at the bottom as shown. A third conduit 14 leads from the valveseat into the receptacle 12 terminatin close to the horizontal, partition 15 forms in the receptacle dividing the same into a lower chamber-16 and an upperchamber 17. The several pipes,-7; l3 and ltmay be arranged in any convenient manner either by the formation of the channels in a single member or by means. of pipes here shown carried in the casing enclosing the same and the connection of the conduits or pipes with the receptacle 12 and the valve member are leak proof. i

As will be understood fromthe above description the valve seat has three openings on one side thereof with which the conduits 7, l3 and 14 communicate respectively, the tubes preferably being arranged in vertical alignment as shown; Diametriindicated at.,21 in Fig. 2. i115 callyopposite the tube openings in the valve seat is a discharge opening 18 and also a vent opening 19.

therewith preferably of a length practically equal to the depth of theglass into which the beverage is to be dispensed so that the lass may be held with the bottom close to ie'discharge end of the conduit 20. The

valve body .10 is provided with a groove- 21' extending nearly entirely around the v'alve,. the ends thereof bein spaced as c r 21 re' 'sters with'the end of the con: uit 14 as W1 1 be understood from Fig.' land,

Whenin registration therewith, the upper end of the chamber 16 is vented to atmos pherej throughthe vent 19. th'e valve so that the space 21 registers with the end of the conduit 14 the said con-' duit is closed and the receptacle sealed.v

Directly. beneath the said portion 21- of the valve is a vertically elon 'ated recess 22 formed in the valve body 0" a length and size to register with the ends of both conduits 7 and 13 simultaneously, the size of the recesses being slightly greater than the diameter of both the conduits so that when in registration therewith, there is an unrestricted flow through the conduits into the chamber 16. It is to be noted that, when the recess 22 is turned to registration with the conduits 7 and 13, the portion 21 of the valve seals the end of the conduit 14. Therefore, upon so turning the valve to bring the recess 22 into registration with the conduits as stated, fluid may flow from the sup ply tank under pressure into the chamber 16. With the chamber 16 empty, the flow of fluid thereinto from the supplytanl:

5 ply tank and, therefore, the level of: the

quid will be about as indicated by the dotted lines 25 below the upper open end of the conduit 14. \Vith the chamber 16 filled substantially as indicated and under pressure on the surface of the liquid and in the chamber 17, which is substantially equal to that of the supply tank, foaming of the liquid is prevented during the filling of the receptacle.

The valve member 10 also has an aperture The discharge, end; of the'valve may be of any approved character beiii here shown 'as having a" depending tubi ar discharge conduit 20 connected 'ly turning" the chamber 17 to foam; v a

As before stated, several typesof valves are suitable for use in the partition 15, an

thus turned-the groove21 is in registration with thedischarge'end of the tube 14f which vents the tube to atmosphere releasing the ressure at the surface of the liquid in the c amber 16. Due to the action of the as under pressure in the chamber- 17, the v7 vs 23 (lwhich may be of any improvedtype) ,is, c os'eid upon'release of pressure" in the chamber 16 but, by reason of the small opening 2s, gas or air underjp'ressure may flow in a restricted manner intothe -chamber .16. This does not-allow an instantaneous ref leaseof the pressure on the. fluid and there i is therefore no greattendency for the fluid to ioamin thechamber 16 u on the open ing ofthe valve 10. The fluid during discharge is under a gradually decreasing pressure 'and b'y gravity flows through the conduit1'3 'into the discharge end of the faucet and asth'e liquid is drawn the pres sur'eithereon is artially maintained from 5111s checking the tendency alternativeform of which is shown in Fig. 3. This simply consists'of arubber tube 30 open to the chamber 16 and extendin into the chamber 17 and is therein provider? with a slit 31 inone side thereof which opens upon the pressure-from the interior produced by a flow of liquid'into-the chamber 16 and is c ose'd by pressure on the exterior in the chamber 17. f The dividing wall 15 in this case is likewise provided with the small leak aperture 32 corresponding to that shown in Figll. ,In any case the valve member-in the partition-wall is such as to allow a free flow of air or gasinto the chamber 17 and prevent flow of air therethrough from the chamber 17 or be closed by pressure in the chamber 17 when in excessfof that in the chamber 16. f From the foregoing description it becomes evident that, by the arran'ge'mentof an in termediate double chambered receptacle into which the fluid from the supply tank is first discharged under pressure and the provision of a leakage from the upper into the lower chamber upon discharge of the li uid, that sive force due to the pressure and, although t t e some slight foamin may take place a surface of the liquic the discharging of the liquid from the bottomof the receptacle avoids the drawing'of the foam.

Having thus fully described my invention,

what I claim is l. The method of dispensing carbonated beverages which consists in first discharging the beverage from a supply-tank into a sealed receptacle under pressure equal to that of the supply tank,ithe sealed receptacle having an upper and a lower chamber and a passageway permitting a restricted flow of gas from the upper to the lower chamber,

suddenly relieving the pressure on the lower a chamber, and then discharging the liquid while. under reduced pressure caused by the restricted flow of the gas from the upper chamber.

v 2.- In apparatus for dispensing carbonated beverages, a supply tanl; in WlllCh liquid is stored under pressure, a receptacle normally sealed to atmosphere and having an upper and lower chamber and a passagewa therebetween permitting a comparativey free flow of gas from the lower to the upper chamber and a passageway ermitting a restricted flow in the op osite 'rection, means for discharging the Enid from the bottom of the lower chamber and momentarily releasing the pressure on the surface of the liquid therein. y

3. 1n apparatus for dispensing liquid under pressure, a supply tank in which the liquid is maintained under pressure, a re ceptacle normally closed to atmosphere, the

surface of the liquid receptacle having an upper and lower chamber and a passageway permitting a restricted flow of gas therebetween, a passageway permittin 'free flow of gas only fromthe lower to t e upper chamber, the flow of liqliquids under pressure, the combination with a supply-tank for maintainin the liquid under pressure, of a receptacle normally closed to atmosphere having an upper and a lower chamber, there being a passageway permitting a restricted flow of gas from one chamber into the other and the flow of liquid into the receptacle, pocketing a as in the upper chamber under pressure substantially equal to that in the supply tank, a valve inthe'wall between the chambers opening by pressure in the lower chamber and closing by'pressure in the upper chamber when in excess of that in the lower chamber, a valve for discharging the liquid from the bottom of the lower chamber, means controlled by the valve opening the upper end of the lower chamber to atmosphere upon opening of the valve to discharge the liquid.

In testimony whereof, I sign this specification.

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