US2372360A

US2372360A - Dispensing device

Info

Publication number: US2372360A
Authority: US
Inventors: Richard T Cornelius
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-03-21
Filing date: 1941-03-21
Publication date: 1945-03-27
Anticipated expiration: 1962-03-27

Description

March 27, 1945. R T CQRNEUUS u 2,372,360

.I DIsPENsING DEVICE Filed March 21, 1941 2 sheets-sheet `1 4F16 5 o7 los figli ,47

gmc/whom w; 106 2M MM March 27, 1945- R. T. CORNELIUS DISPENSING DEVICE Filed March 2l, 1941 2 Sheets-Sheet 2 Richard v"[`. Cornel-lus Patented Mar. 27, 1945 UN [TED STAT ES PAT N T F F I C E DISPENSINGDEVIGE.

Richardi'l. Cornelius, Minneapolis, ,.Mlapplieatieumamh-21, unserm-Nn. 384,437

r1 claims. (maas-21) My invention'V relates .toibeverage dispensing: devicesand.l particularly. to devices.4 adapted to. be used. in. mixing.l syrupszwith carbonated. Water..

A; still further. object. of the. invention resides inprovidinga. miidngdevi'ceinwhicn the amount of syrup may be accurately measured.

A feature of theinvention resides in pruvidin a devicewhich willlbe extremely simplein.r conmeans being.y yat allA timesin. communication withthechamber. f y

Another object. .oi the. invention resides in providing. means op erableonoccasion for controlL ling, the .egress of. the carbonated 'Water trom said chamber and; in constructing said means. sol that, when in. operation, it offersless insistance to the flow Aof.` the water than thelrstnam'ed means. to:` procure. a reduction ofi. pmsslne'- in the pressurechamber., l v f Another lobject ofthe invention resides 'ini pro@ viding means. for controllingl vthe' -dispensin'gfvof syrup and means operable:v upon 'reduction in pressure in; said pressurefchamber for controlling saidllastnamed means. f f Another' object oftheinvention reside's-in providing pump. meansnf'or, dispensing thebsyrup; and in providing. means opera-ted by the-reduction. of pressure inthe pressure 'chamberlforcontrolling the. operation'I fof said; pump'means.

Aieature of the `invention resides-1in providing two 'expansible chambers having diaphragme therein, one of said vdiaphrarms being sub-jectto the .pressure the pressureecnamberf andserving to move the other diaphragm, the otherv dia-h phragmr serving to pump thesyrup'. Other IobjectsA of the invention reside in. 'the novel combination and arrangementlofpartsand inthey details of construction hereinafterillustrated and/or described. i

In. the. drawings: Fig. 1 is a plan sectional View4 ofwabeverage dispensing device embodying my: invention 'and takenonline of Fig. 2; Fig.` 2V isxan elevational Asectional View.' o'if 'the invention: taken 'on line '2L-lof Fi'gaili Fig.' 3'isaasectional; View.` similar. tlig.. .2 :sh-owing.- th-e partsin alteredpcsitionf.

Fig. 4 is a fragmentary' plan. sectional view taken online 4-'4 of Fig; 3;

liafis aA detail sectional view.v o onefof.- the valves ofi theinvention.

IVLyl invention comprisesl a: case.y lf which is constructedi with a body-'portion Hf having: an upwardly` facingi surface l2: and a downwardly facing-surface I3. overlying tliez surface. l2:7 is

a. cover.y I4' and lattachedx to; the lsurface.` 1:3 is.X a

cap I 5; These' various parts .arefse'cureditogether toform. within therinteriorof theacase a pressure chamber I6, an upper compartment I'I andia lrvericompartment t8. il.' and I' arev separated` by a. partition IB and the said two.v compartments. are disposed. one above 'the'A other as clearly shownimFigs; 2ca1'rd3a 'Ithecover t4 isrformed' with a; neck 2.1i which.. is constructed.withapassagewayf 22' communicating with:thefpressurechamber Inti Attached to this neoleisi'a faucet 23.-which.-wi1lf.now be described in detail.

The faucet 23 isconstructed with a bodyportionldintegral with the necki 211' ofca'se. lill. The body portion` 2d is provided with a vertical passageway. 25 which communicateswithi the-[passageway and whichisyprovidedat its lowermost endl with a= valve seat 26; lThe'upperendl 2150i the body 'portion 2'4 isithreaded t'creceive. abush'- ing '2li which isI vadapted tov hold in position a tubular. guide 33. rI`his guide slidablysupportsl a plunger 29 Plonger Zilis recessed asiindicated at 3| to engage a shoulder 32 formed on thet'ubu lar. guide 33. This shoulder limitsfthe upward movement of. theV said lplunger;

Withinfthe passageway 25 is arranged a valve vSteur 3111 which has securedl to the'- lower end thereof-1 a valve head 3% adapted' to4 seat `against thevalve seat '26; 'The'valve stern- 341 is guided atiitslower end in a perforated collar3l6m0unted in the lower end of the bodyvk portion 254. The upper end of the valvelstem 34 hasattacliedto it acylindricalV head 3l which is slidab-lv mounted in:- a washer' 381 clamped vtol theoupper 'end l2li of th'e body 'portion 213% by theV bushingy. lso clamped between: said kbushing and the bodyV portion. 211i isar small diaphragm' 39f'whi'ch is clamped to`v the'v valve` stem= 34 betweena nut'fli and the head 31aV A'. compression coil" springy llencircling thestem `31| and seatedv againstrthenut 41| and g-uideSB urges thevalvesheadf'S Erintc engagement with thee valve seat 255; Another coil .spring 43 actingl'between thewasher :it-andthe plunger '259 urgesfsaidiplunger upwardlyand awa-y from the The twov compartments means of any operating mechanism such as a lever or the like, valve stem 34 is depressed and the valve head 35 disengaged from seat 28 to permit of egress of liquid from the mixing chamber I6 and out of the device. To discharge the liquid from the faucet 23 a nozzle 45 is employed which is attached to the lowermost end of the body portion 24 in which the valve head 35 is movable.

Disposed on the surface I3 of the body of casing I and between said body and the cap I is `a diaphragm 46. This diaphragm is clamped in position between these two parts by means of screws 41 which p'ass through the cap I5, the body I| and are threaded into the cover I4. The said diaphragm divides the compartment I8 into two

chambers

48 and 49, which chambers are expansible and the volume of which is altered when the diaphragm is moved toward and from the partition I9.

Overlying the surface I2 of the body |I and disposed between said body and the cover I4 is another diaphragm 53. This diaphragm is held in position between the said partition by means of the screws 41 previously referred to and by means of other screws 54 which extend through the body II and are threaded into the cover I4.

The diaphragm 53 divides the compartment I1 into two

expansible chambers

55 and 56, the chamber 56 being disposed adjacent the partition I9.

The diaphragm 53 has an extension 58 which extends outwardly beyond the connes of the compartments I1 and I8 and which is disposed in proximity to the portion 55 of the body I I, as well as the pressure chamber I6. This extension covers an annular valve chamber 52 formed in this part of the body. The said portion of the body is constructed with a number of concentric valve seats 51 which are adapted to be engaged by the diaphragm extension 58 which serves as the movable element of a valve indicated in its entirety by the reference numeral 59. The diaphragm extension 58 has a hole 6| in it which communicates with the pressure chamber I6. e An annular leaf spring 62 engages the upper surface of the diaphragm extension 58 and urges the same into engagement with the valve seats 51. This spring is disposed within a recess 63 in the cover I4 and engages the lowermost wall 64 thereof.

The chamber 49 formed in compartment I8 is vented to the exterior and performs no particular function in the instant invention. The chamber 48, however, is connected by means of a passageway 5l with the valve chamber 52, previously referred to so that operation of the valve 59 will bring the chamber 48 into communication with the mixing chamber I6.

The partition I9 is formed with a bore 65 concentric with the

diaphragms

46 and 53 which are disposed one above the other and in concentric relation. Slidably mounted in this bore is a sleeve 66 which makes a fluid-tight connection with the bore 65 through a packing gland 61. This sleeve at its upper end passes through the diaphragm 53 and also through two

plates

68 and 69 overlying said diaphragm on opposite sides thereof. A nut 1| screwed upon the extreme upper end of the sleeve` 66 clamps the said diaphragm and plates against a shoulder 12 formed on said sleeve. The sleeve 66 is similarly constructed at its lower end and passes through the diaphragm 46 and through two discs 15 and 1li overlying said diaphragm upon the upper and lower surfaces thereof. A nut 11 screwed to the lower end of the said disc clamps these parts in place. By means of this construction the two diaphragms are secured together and are caused to move in unison.

The upper end of the sleeve 66 is formed with a head 18 which is threaded to receive a rod 19. Rod 19 passes freely through a hole 8| in the cap I5 and is threaded at its lower end, as designated at B2, to receive a nut 83 and a lock nut 81|. The nut 83 engages the lowermost surface of the cap l5 and limits the upward movement of the two diaphragme 53 and 46. By adjusting the said nuts the volume of the expansible chambers can be manually regulated at will. A compression coil spring 85 encircles the rod 19 and is disposed within the bore 86 of the sleeve 66. This spring is seated at one end against the head 18 of said sleeve and at, its other end against a washer 81 overlying the cap I5. By means of this spring the two diaphragms areurged upwardly to their extreme position determined b-y nut 83, as shown in Fig. 3.

Wnen the device is to be used for preparing soft drinks or similar beverages, carbonated water under pressure is directed into the chamber 55 by means of a construction shown in Fig. 1. For this purpose a tube 88 is employed which is disposed within a larger tube 89. Both tubes are wound in the form of a coil as indicated by the reference numeral 9|, which coil may be placed at any desired locality between the source of carbonated Water and the mixing device. The tube 88 has a fitting 92 connected to it which is secured to a bushing 93 screwed into a wall of the cover I4. This bushing brings the passageway ,in the tube 88 into communication with the chamber 55 through the said bushing. Attached to the

tubes

88 and 89 at the ends of the tube 89 are

suitable fittings

94 and 95 by means of which trie annular passageway between the two tubes ,f may be connected to

suitable pipe connections

96 and 91. The tube 89 forms a jacket encircling the tube 88 through which cooling liquid may be circulated to maintain the carbonated water passing through said tube at a proper reduced temperature. The tube 88 is of such dimensions as to offer an appreciable resistance to the flow of the carbonated water so that, when faucet 2B is opened a material reduction in pressure in the chamber 55 and in the .pressure chamber I6 occurs which is utilized in the operation of the

diaphragms

53 and 46 as will be hereinafter more fully described.

The syrup to be mixed with the carbonated Water is directed to the bore 98 of a fitting 99 which is screwed into the body II of case I0. The body II of case I0 has a passageway |02 which communicates with the bore 98 and which brings said passageway into communication with the chamber 56. The fitting 99 has a check valve IOI in it which permits of entry of syrup vinto the device but prevents flow of syrup back out of the said device.

In the partition I9 is provided a check valve |03, best shown in Fig. 5. A passageway |04 extends through the partition I9 and is tapered to form a valve seat |05. A valve head |06 seats against this valve seat. This valve head has a stem |01 extending through the lpassageway I 04, which stem has secured to it a spiral spring |08 received with a recess |09 in the uppermost porstruction tneuval-ve .head im; .iis'fm-aintained in closing @position funtil @the :difference :1in pressure within'the 'two :chambers .256 and i419 causes "..tne

sameito lopen against '.thezlactinn :offspring f I 08. l

yiattached.tottl'ieiuppermost:portionzofitheacover i'dxisa .jacket Hl which .iprovidesarzspace mi2 overlying the chamber 55, Twospipeiconnections I\If4 and v1li-'5 A:are .provided for theejacket .M I by rected yinto :and :out of .the space Allf.l:2.f Tlhusfthe :cover i|4may be keptiat the properiptemperature .to prevent undue pressure 'within the? device a'nd temperature. t l

The Aoperation :of the :.inventioniiseas lzfo-llows: when .the e'tvvo J.diaphragme :53 and 46 .rnovezupf -wardly, `valve 1.03 .is closed fand Lthecdiaphragm to :maintain the :carbonated -water :fat ame-.proper :'53 :creates fa vsuction:inf-chamber 115,6 vvwhich; opens the check valve. *I 01 an'ddrawsaa Ipredetermined amount of syrupinto .f-said"'.cl1amber...frorn fthe source fof syrup usupply. `When ,fthe :diaphragm 53.1reachesitsuppermost .positionfascontrollediby .nutt8'3aengagingnthe':lovverrnost, portion 'of tlzeoap l51thexcheck valve Illflsclosesand-:cuts off :the l ingress .of syrup. 'During '.the usewof :the device,

zas; previouslyfexplainedj the lpressure fin-fthe pressure/chamber IIB and.the.chamberi'becomes ap- ',preciably reduced 'due v.to the resistance-aiorded by the'tubeflr to the passageway ;of `carbonated Water'throughthelsame. :While.thefpressurefisfso reduced :thespringf .'forces` the. Ltwodiaphragme e3 and :46 upwardly sto f'draw, .the .=syruprinto l the chamber 56. f

:Upon closing,r 'of the .faucet2'3the pressure :in .fthe chamberfii commences-"td buildup until ythe asaid pressure is the same :as at :the beginning l of "the col'vSl. JAS this/occurs the .diaphragmffis "forced downwardly .against the actionfofzsprng l8'5 and f said `spring compressed. .During @such movement the check @valve f|3f-isf opened-,and -the :syrup contained lwithin 5 the 'cl'iarnber 56 '-.di-scharged through .1 the passageway m4 and into fthe chamber M8. At fthe :same ftime .that .the diaphragm '53 iis ytraveling downwardly ,.to .fcreate .pressure in `.chamber 256 to eject the'y syrup: there,- .from, .diaphragm 41B is .likewise ftraveling y.downe wardlyand creates areductionIofpressurelinfthe Lchamber 'fl-8 which closes the Valve r5.9 and `:also --aids .in opening :the vvalve 1.03 .and tdrawing .the xsyrup fron'rthe clamberGrandinto thechamber 48. When thediaphragrns reaclmtheir lowermost position, which is determined by the plate .-Tffeneasing the :capita :valve e |03.A closes.- andl theisyrup `drawn intosaidfchamber is-cut Aoil .from the syrup iis .f'dis'c'h'arged for reach glass cof beverage wnichiisfaccuratelytmeasured and whichicanrbe controlled in amount by adiustmentiofthetnuts andffi'. p v

u .Thef'advantages .ofrimy unven'tionriaresmanifest;

An :extremely simple and practical .construction i is "..provided by :means 'of '.which .1a predetermined lainoutio ssyrupimayszbe delivere'cllforteachz glass of beverage drawn .frorn 'the device. `ilhe device functions?solelyezupcn 'reduction fin spressure :in .therpressure chamberwhereby. no complicated or intricate u.parts .arei reeduiredlforl successfuleoper- 'ationof :the invention. "The .device is extremely 'smalliand toom-pact rand f'mayibe :easily :installed in closef quarters. By the proper :cooling Iof athe -case fof. my. invention' andithe l coil. formen-ducting the ".car'bon'ate'd Awater `:to .the rdevice, `'excessive pressures .are prevented, 'thus lmaking .thedevice 'operate positively and procuring thegproper. dis- .pensing of thecsyrup land .the #carbonated water. With 'my inventiontth'e'zquantity of :syrup @furnished may be @readily regulated :rand z controlled witbiniclose'limits. 1 I

While :I have described theinvention las spar.- ticularly useful for ra I.device 1in .fmixing and :dis-

` pensing. beverages,.lit Vcan readily becomprehendchamber 56. .The Iparts .thensbecome arrangedqas .shown in Fig. 2,. which illustrates fthe .normalgpo- Asitons 1 of the parts when v.the iaucetis closed. .If .nov/.the 4faucet is;openedrthapressure within the lvchambers andV 1,6 is reduced .and spring' ..85 moves twodiaphragms 53 andJlS upwardly. .This .causes injection ofcanew chargeofsyrup..into ,the .chamber v5E .zand at the same time :causes .discharge ofthe syrup. in thachamber-SE through `1 cassageway15!` -and valve -:59 .vinto the ...pressure chamber` ,4.5. -Thus a\.predetermined .measured .quantity osyruplis discharged intothe-r1owing Vstream -.of carbonated Awater r as the same ;..passe s .through the. ..pressure .chamber rI8 land, intotlfie` 7.faucetli .When-the carbonated Water.'is..being 4lled 4inra glass of a certainsize a predetermined samount y.of carbonatedwateryis .thus measured `and s likewisea 1predeterminedvamcuntoisyrupds :measured byithepumpin'g action o f vthe .dia- .phra'gms 153 `-and 46. :Thus 1.a .-xedfamount ,of

edthat thedevicernay.` be used for anyotherfkind Changesinthe specific :form ofnny-invention, .asf hereindisclose'dmayibe. made -withinftherscope of what is claimed `Without departing :from fthe spirit '.o'f my.v invention.

.Having described my invention, what I .claim .as new; and'` desire to protectby .LettersePatent is:

.-1.,.A .dispensing .device .having va y:pressure chamber, means for .conducting -a .fluid :under pressure into lsaid .pressurechamber saidmeans including a xedresistance .for .controlling v4the rate of vingress .of the. fluid into said vchamber, said .means ,being at 4all times in .direct .open

lcommunication .with said chamber, .means operable v:on "occasion for- .controlling `the `.egress .of fluid'from said chamber,v said first andsecond named means .being both .in communication lwith' said chamber duringegress offluid .therefrom said last namedmeans when.in operationzofering less resistance .to the iiow of the fluidthan .said-.first named means to procure .a-.reductiondn pressurein said .pressure chamber, -means `-for Ameans being 1 both in communication Vwith .said

chamber during egress of .uid therefromvsaid last named means when in operation joiering less resistance tothe flow of the .'uidthan said rst named means .to .procure a reduction l.in

pressurein said pressure .lchamber, meansforming .an Aexpansible chamber, .a movable Nmember operable .in said.expansible-,chamber to vary-.the

lvolume thereof, .means for. .conducting a .second fluid into said expansible chamber, ..said-movable memberserving .to dischargethe content's.of ..said expansible .chamber-.into said` pressure chamber, and means operable upon fredutieebimpressive in said pressure chamber for controlling the operation of the movable member Within said expansible chamber. Y

3. A dispensing device comprising a case having a pressure chamber, means for conducting a fluid under pressure into said pressure chamber and for controlling the ingress of the iluid into said chamber, said means being at all times in communicationl with said chamber, means operable on occasion for controlling the egress of iluid from said chamber, said last named means when in operation offering less resistance to the flow of the fluid than said first named means to procure a reduction in pressure in said pressure chamber, said case having a partition forming two compartments disposed adjacent one another, a diaphragm in one of `said compartments forming With said partition an expansible chamber and being movable to vary the volume thereof, a second diaphragm in the other of said compartments forming with said partition a second expansible chamber and with a portion of the case on the opposite side thereof a third expansible chamber, said second diaphragm being movable to yvary thevolume of said second expansible chamber and responding in movement to the variation in pressure in said third named expansible chamber, valve means for bringing said first named expansible chamber into communication with said pressure chamber, Valve means for bringing said second named chamber into communication with said iirst named chamber, said third named chamber being at all timesin communication With said pressure chamber, means for conducting a second fluid into said second named expansible chamber, and means for connectingsaid diaphragms together to cause the same to operate in unison.

4. A dispensing device comprising a case having a pressure chamber, means for conducting a fluid under pressure into said pressure chamber and for controlling the ingress of the fluid into said chamber, said means being at all times in communication With lsaid chamber, means operable on occasion for controlling the egress of fluid from said chamber, said last named means when in operation offering less resistance to the flow of the fluid than said iirst named means to procure a reduction in pressure in said pressure chamber, said case having a partition forming two compartments disposed adjacent one another, a diaphragm in one of said compartments forming With said partition an expansible chamber and being movable to vary the volume thereof, a second diaphragm in the other of said compartments forming with said partition a second expansible chamber and with a portion of the case on the opposite side thereof a third expansible chamber, said second named diaphragm being movable to vary the volume and said second expansible chamber and responding in movement to the variations in pressure in said third named expansible chamber, said case having a passageway for bringing said first named expansible chamber into communication with said pressure chamber, 'a check valve for preventing flow of fluid from said pressure chamber to said first named expansible chamber, said partition having a passageway therein for bringing said second named expansible chamber into communication with lsaid iirst named expansible chamber, a check valve in said second named chamber being at all times in communication with said pressure chamber, means for conductfing a secondv fluid into said second named expansible chamber, a check valve for preventing flow through said means out of said second named expansible chamber, and means for connecting said diaphragms together to cause unitary movement thereof.

5. A dispensing device comprising a case vhaving a pressure chamber, means for conducting a iluid under pressure into said pressure chamber and for controlling the ingress of the fluid into said chamber, said means being at all times in communication with said chamber, means operable on occasion for controlling the egress of fluid from said chamber, said last named means when in operation oering less resistance to the flow of the ilud than said first named means to procure a reduction in pressure in said pressure chamber, said case having a partition forming two compartments disposed'adjacent one another, a diaphragm in one ofv said compartments forming with said partition an expansible chamber and being movable to vary the volume thereof, a second diaphragm in the other` of said compartments forming with said partition a second expansible chamber and with a portion of the case on the opposite side thereof a thirdv expansible chamber, said second named diaphragm being movable to vary the volume and said second expansible chamber and responding inv movement to the variations in pressure in said third named expansible chamber, said case having a passageway for Ibringing said rst named expansible chamber into communication With said pressure chamber, a check valve for preventing flow of fluid from said pressure chamber to said rst named expansible chamber, said partition having a passageway therein for bringing said second named expan'sible chamber 'into communication with said iirsif, named expansible chamber, avcheck valve in said second named passageway for preventing flow from said first named expansible lchamber to said second named expansible chamber, said third named expansible chamber being at all times in communication `with said pressure chamber,r

means for conducting a second iiuid into said second named chamber, a check valve for preventing flow through said means out of said second named chamber, and meansextending through said partition and connecting said diaphragms together for causing simultaneous movement of said diaphragms.

6. A dispensing device comprising a case having a pressure chamber, means for conducting a uid under pressure into said pressure chamber passageway for preventing flow from said first named expansible chamber to said second named expansible chamber, said third named expansible and for controlling the ingress of the fluid into said chamber, said means being at all times in communication with said chamber, means operable on occasion for controlling the egress of iiuid from said chamber, said last named means when in operation oiiering less resistance to the flow of the fluid than said flrst named means to procure a reduction in pressure in said pressure chamber, said case having a partition forming two compartments disposed adjacent one another, a diaphragm in one of said compartments forming with said partition an expansible chamber movable to vary the volume thereof, a second diaphragm -in the other of saidy compartments forming with said partition a second expansible chamber and with a portion of the case on the opposite side thereof a third expansible chamber, said second named diaphragm being movable to Vary the volume and said second named exjpansible chamber and responding in movement to 8, Adispensinghdevice comprising'a case havthe -variationsinprssurfin ,said Y' M ing apressure chamber, "means for conducting a expansible chamber AMase"k av g a passageuidfiirde'rpressurefintosaid pressure, chamber way 'fior bringing idhrs't -nariiedj and Yfor ce rolling i 'ingressjorthe nuid'into rhlamber'intofc'oihm Aiea' tfiolrfivllisi.` 5 ffsed'gha ,erfsaidfiii 'ans beingiatall timesin chamberL-a'clieck Va Vemfd-rl preventing lio 'communication with'saidl cliamb-en: means loper"- iinid "iromsaid y r `hainber tof'aid l fable @aoccasion l 'eontreiiihg the egressY of namedex ansibl ham'ber id partition `g viiiiildfro 'id' aidl'ast na'n'ied means en in. @per adn, die .ales rsistance' ,to the flovvloil. the'iiufidl 'than s'aidt' t namedl means Said pleS- @passageway 'therein ,for e .riging'said se. naniedfexpasiblefchambr nto c n u y with gaidggt gifle i passipieena berjaeneek to procure 'ared'dcti'oh in pre valve insaid .fsecondfha'ihedpassageway fer piee sureeharnbeneaid CaSe-,1.1 Ying ap venting ovvh'frb-i'dsaid.: iirstnam'edexpansble 'wo'c'" chambertosaid's'condna ber, said third; named eiipan at all tifiie'sA incihmuiiication with said pressure chamber, means for conducting a second iiuid diaphragm in the other of said compartments into said second named chamber, a check valve forming with said partition a second expansible for preventing iiow through said means out of chamber and With a portion of the case on the said second named expansible chamber, means opposite side thereof a third expansible chamextending through said partition and connecting ber, said second named diaphragm being movsaid diaphragms together for causing simultane able to vary the volume and said second named ous movement of said diaphragme, said second yexpansible chamber and responding in movenamed diaphragm being urged towards said parment to the Variations in pressure in said third tition through pressure created in the pressure named expansible chamber, said case having a chamber, and resilient means for urging said diaf passageway for bringing said first named expanphragm for movement in the opposite direction. sible chamber into communication With saidr 7. A dispensing device comprising a case havpressure chamber, a check valve for preventing ing a pressure chamber, means for conducting a ow of fluid from said pressure chamber to said fluid under pressure into said pressure chamber .30 first named expansible chamber, said partition and. for controlling the ingress of the uid into having a passageway therein for bringing said said chamber, said means being at all times in second named expansible chamber into comcommunication with said chamber, means op- 'munication with said rst named expansible erable on occasion for controlling the egress of chamber, a check valve in said second named iiuid from said chamber, said last named means passageway for preventing now from said first When in operation oiering less resistance to the named expansible chamber to said second named iiow of the uid than said rst named means to Y expansible chamber, said third named expansible procure a reduction in pressure in said pressure chamber being at all times in communication chamber, said ca se having a partition forming with said pressure chamber, means for conducttwo compartments disposed adjacent one another, 4o ing a second uid into said second named eX- a diaphragm in one of said compartments formpansible chamber, a check valve for preventing ing with said partition an expansible chamber flow through said means out of said second` movable to vary the volume thereof, a second dianamed expansible chamber, means for connect phragm in the other of said compartments forming said diaphragms together to cause unitary ing with said partition a second expansible chammovement thereof, and a threaded rod attached ber and with a portion of the case on the oppoto said last named means and extending through site side thereof a third expansible chamber, said the case, said rod being guided for movement in second named diaphragm being movable to vary the direction of movement of the diaphragm, and the Volume and Said seCOrid eXDansible chamber adjusting nuts on the rod for limiting the stroke and responding in movement tothe variations in of said diaphragme for varying the amount ofy pressure in said third named expansible chamber, said second nuid entering said mixing chamber. said case having a passageway for bringing said 9. A dispensing device comprising a case havrst named expansible chamber into communiing a pressure chamber, means for conducting a cation with said pressurechambena check valve fiuid under pressure into said pressure chamber for preventing cw of fluid from said pressure and for controlling the ingress of the fluid into chamber to said first named expansible chamber, said chamber, said means being at al1 times in said partition having a passageway therein for communication with said pressure chamber, bringing said second named expansible chamber means operable on occasion for controlling the into .communication with said first named eX- egress of iiuid from said chamber, said last named panSible chamber, a Check Valve in Said SSCOnd means when in operation oiiering less resistance named passageway for preventing 110W from said to the now of the iiud than said nrst named iirst named expansible chamber to said second means to procure a reduction in pressure in said named expansible chamber, saidthird' named eX- pressure chamber, a diaphragm within said case pansible chamber being at all times in communiforming pumping means, said diaphragm having cation with said pressure chamber, means for a part integral therewith and forming a valve for conducting a second fluid into said second named bringing the pumping chamber of said pumping eXpansible chamber, a Check Valve fOry preVentng means into communication with said pressure iiow through said means out of said second named chamber, and means responsive to the pressure eXpansible chamber, means for connecting said in 'said pressure chamber for operating said diaphragms together to cause unitary movement pumping means.

thereof, and adjustable means connected to said 10. A dispensing device comprising a oase diaphragm and extending through said case for formed with a compartment having a movable limiting movement of said diaphragms to conmember therein and forming an expansible trol the volume of said rst named eXpanSible chamber on each side thereof, means for conchamber. 75 ducting carbonated water under pressure into the expansible chamber on one side of the movable member, said case being further formed with a mixing chamber communicating with said expansible chamber, means for conducting syrup into the expansible chamber on of the movable member, means for reducing the pressure of the carbonated Water in said mixing chamber and means operated by such reduction of pressure for operating the movable member to discharge the syrup into the carbonated Water in the mixing chamber.

11. A dispensing device having a mixing chamber, means for conducting a uid under pressure into said mixing chamber to create a pressure the one side 'fil - therein, said'means including a fixed resistancelf' for controlling the rate of ingress of the fluid into said chamber, said means being' at alltimes in direct open communication with said chamber, means operable on occasion for controlling the egress of fluid from said chamber, said last named means when in operationwoffering less resistance to the flow of the iluid than said first named means to procure a reduction in pressure in said mixing chamber, means for delivering another fluid into said mixing chamber and means operable upon reduction of pressure in said mixing vchamber for controlling the operation of said means for delivering the other fluid into the mixing chamber. v

RICHARD T. CORNELIUS.l