US2517083A

US2517083A - Discharge device

Info

Publication number: US2517083A
Application number: US707850A
Authority: US
Inventors: John W Carlson
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-11-05
Filing date: 1946-11-05
Publication date: 1950-08-01
Anticipated expiration: 1967-08-01

Description

J. W. CARLSON DISCHARGE DEVICE Aug. 1, 1950 Filed Nov. 5, 1946 1 w M M MW w w ww 0 6 a 6v w/ w 4 a j a J i a I iatenteci Aug. 1, 1950 1' DISCHARGE "DEVICE JohnW. Carlson, Chicagoflll. Applicat ionNoveinber 5, 1946;senai m: vomso V 6 'Glaims. 1 This invention relates in. general to"flow" restrictors ordischarge devices whichlare particularly adapted torestrict theflow of liquids under pressure such as carbonated water.

Devices of this character have been used heretofore for dispensing carbonated liquids in many difierent places such as" soda fountains and vending machines capable of dispensing carbonated beverages. While the discharge device disclosed herein-islparticulafly adapted for use on such a carbonated beverage vending machine; it isqby no means lirnited to such use.

i It is the. present; practice in machines ofthis character to maintain a volume of saturated or substantially saturated aqueous solution 'of carbonl dioxide,to'-be.. discharged into a receptacle. This-carbonated liquid is maintained at' a high pressure and usually a low temperature. Onerof the problems which is presented in dispensing a carbonated liquid is the necessity'of discharging the solution from it's high pressure to atmospheric pressure fast enough for practical purposes and yet -slow enough-to prevent excessive aitation -and turbulence which results in .a 1oss,of..-gas from the liquid. Furthermo re fine.particles-of foreign mattermaybecorne'deposited in ordinary discharge a devices tending-to clog the passages and thereby reduce the efficiency thereof.

It is common practiceto. employ some means -for disruptingthe impact of the issuing soluttion. Such means usually includes a"stationary unember-to receive the impact of the solution -under pressure which distributes" the liquid a spray. This has been found to be unsatisfactory in actual practice not only becattsebfjthe high rate of gas loss, but also becausethe small passage which distributes the solution. in a' 'spray has a tendency tobecome clog'ged due tothednevitable presence of] fine particles of foreign "matter. Such clogging necessitates ren 'ovahofthe o 1 device for cleaning.

In my present invention I have been able to overcome the various disadvantages mentioned above by providing a structure whichyiiill' not only retain a high gas content ml the issuing 'soluinvention is to provide a discharge device .for .re-

stricting the flow of a fiuidunder pressure; such as carbonated water which willmininiize gas -loss and which has self -'cleaning characteristics.

h O jCQ iS QY provide. a flow rstrictor 5 wherein the impact member.ragainstbwhic f fluid flowstis" movable undemthelpressure ""fluidto" form a restricted.openingzriwhiclr as em cleaningzand. which effectively reduces rthewerlocity of fiow without an unduecagitatiomomtur- 10 bulenceithereof.

7 sum :anothercobjectds .tow zpromide lat; flowmel 'strictor.'ioncdischarging fluidsisuchfaslcarbonated water-wheremithe impact: member againsttwiiich the fluid flows-s iszimovablesunder atheapressuraiof 1 5 the fluid: :to .form la. restricted vopening; i whereby l-the initial dischargezoflfluid .will have-a cleaning -.efiect fthereom before x therropeningv. become-serially r restricted.

Anotherobi ectxis-ltoprovide a carbonated liquid o discharges devicetmherein a rbqdy having. an inlet 1 s. and amoutlet :therein contains two. membersnone rof which is: stationary.and onerofwwhiohzisimovable, the :movable .member being .mo-vableuunder fiuidcpressurei toward, the:stationaryizmemberl to thereby restrict the passage.rtherebetweenlaiter "i therinitial::onrushxor surge oftfluidw has-:had a cleaningaiiffech on.-.-the.= lpassage.

' Otherobjectsvandadvantages,pflthe invention Will become: apparent: uponmreading. the. :follow- 3 ing. description :taken'cin connection-.withtthe:ac-

1 compan'yingl drawingzimwhich:

Fig. 1 is awertical'ilongitudinalrsectionzthroiigh the discharge clevicewhereinithe passage'betwfien "trie -two members isinsits normally open-position;

Figi 2u= is a view :similar .to Fig.1 1:: showing a the impact. member in tits: closedlpositiunx whereimthe passage istarestricted; l

Figi 3 isa horizontal; :transverse section. taken substantially 'alongithe plane Ofiine-B-eibf E ie: 1; Fig.- 4 1S1.allhfll'izbn'flaljtlansversezseflfiflllmtflken .asubstantially: ralongvthe plane--of;-li-ne 41-4 of Fig. i and .E'ig: filgis-la horizontal-transverseYsection taken substantiallyialong. theplanersof line 5-.-,.5,of mg. .1.

Thisin-ventionis amodifiedform from thatnis- ..closedin the sc -pendingapplication of; Ernest L. Wolf Ser. N 0. 100,602 filed October. 2,. 19:36,, and compr.ises a :body havingan inlet. and an. outlet therein, whichbody ishollow andcontains a mov- ...able impact meinber' having... a frustro-conical .cavity therein within whiclrthe frustro-conical portion lof a stationary member extends? The two "meinbers. are normallyg spaced apart-:toprcivi'de a. passage'through whichtheliquidunder-pressure is for ..discharging. fluids such a carbonated water. 55. adapted to flow'whereby'the:initialsurge willflow inner edges of stationary support for the member I6.

" v A movable impact member28 is located in the upper part of the body and has a centrally 10- i cated downwardly extending opening .30 therein through the passage unrestricted for cleaning purposes, after which the pressure of the liquid will move the impact member toward the stationary member a limited distance to thereby restrict the passage and the further flow of liquid therethrough.

Referring now more particularly to the drawing, the body portion is preferably provided in two sections, the upperfsection designated by the numeral 2 and thelower sectionindicated at 4, for ease in assembly. One of these sections is internally threaded at one end thereof and the other is externally threaded to thereb provide a threaded connection 6 therebetween.

The portion 2 of the body is provided with a smaller threaded section 8 atone end thereof for connection with a source of liquid under pressure, which section has a passage l therethrough to permit the liquid under pressure to flow within "-thebody. The upper-section2 is tubularand the lower section 4 extends downwardlyand is tap r d as at [2, terminating in the outlet l4. 1

- A. stationarymember l6 having an'upwardly extending frustro-conical portion ['8 is located 1 within'the body and has a downwardly extending 'frustro-conical portion 20. .Near the. lower end of'the tapered portion 12 offthe lower section 4, I provide a'plurality of radially extending supporting ribs 22 providing passages 24 therebetween for liquid flow. A stationary member 26 of invertedconical shape is adapted to rest on the the ribs22 and thusprovide a in alignment with the inlet It so that fluid enterding the inlet will be directed through the passage o'r opening'30. A= frustro-conical cavity 32 is '-'cate'd within the-impact member 28 and within "which the frustro-conical portion 18 of the stationary member l6 extends in normally spaced relation to thereb providea passage 34 between the two members. i

The member 28 has a tight fit within the body and at its upper" end is provided with a sealing ring-'36 in order to prevent any of the liquid under pressure from passing between the member and-thebody. A shoulder is provided adjacent the upper end of the: opening 30 and is adapted "fto support a'ring or spider 38 which has a downwardly. extendinginternally threaded tubular 'qmember'lfl secured thereto. and which extends into theopening 33. A plunger 42 has-a smaller threaded end M adapted to be threadedlyengaged with the inner surface of the downwardly extending me'mber il], which plunger extends downwardly intoa central'opening extending lengthwise through the stationary member l6.- A stop member 4-6 extends upwardly into the central opening through the stationar member from the other end thereof and has a head 48'thereon 'threadedly-engaging an enlarged portion of the central opening for purposes of adjustment, The stop member 46 is of a smaller diameter than the central opening through the stationary member and thus provided an annular opening within which a coiled compression spring 50 is located. The upper end of the spring 50 norfmally bears against the lower end of the plunger 42 thus holding the impact member 28 in its up- 4 the closing movement thereof in restricting the passage 34.

The operation of the device is as follows:

The device is norm-ally in the position shown in Fig. l and when a liquid under pressure such as carbonated water enters the inlet l0, it will first pass inwardly through the opening 30 and along the passage 34 to the outlet 14. The initial surge or onrush of the liquid will have a cleaning effect on the passage and flush out any foreign matter which may be present therein. Immediately after this initial surge, however, the force of the liquid against the upper end of the plunger will move the impact member 28 downwardly to its position as shown in Fig. 2, where the bottom of the plunger will contact the upper end of the stop member 46, thereby providing a restricted passage 34 as shown in Fig. 2. This will permit the liquid to be ejected through the outlet l4 with a minimum loss of gas.

, If for any reason it is desired toadjust the distance through which the impact member 28 service man.

It will be evident that changes may be made in the form, construction and arrangement of 1 parts from those disclosed herein without departing in any way from the spirit of the invention or sacrificing any of the attendant advantages thereof provided, however, that such changes fall within the scope of the claims appended hereto.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A carbonated liquid discharge device comprising a body having an inlet and an outlet,

, member to thereby partially close said passage and restrict the flow of liquid therethrough.

2. A carbonated liquid discharge device comprising a body having an inlet and an outlet, an'irnpact member having a frustro-conical cavity therein movably mounted within said body, a stationary member having afrustro-conical portion extending within said cavity and nor- 2 mally spaced therefrom to provide a passage for liquid flow from said inlet to said outlet, said impact member being movable under liquid pressure from the inlet toward said stationary member to thereby partially close said passage and restrict the flow of liquid therethrough, and adjustable means to limit the closing movement of saidimpact member.

3. A carbonated liquid: discharge device comprising a body having an inlet andan outlet,

an impact member having a frustro-conical cavity therein movably mounted within said body, a stationary member having a frustroconical portion extending within said cavity and normally spaced therefrom to provide a passage for liquid flow from said inlet to said outlet, said impact member being movable under liquid pressure from the inlet toward said stationary member to thereby partially close said passage and restrict the flow of liquid therethrough, and means to limit the closing movement of said impact member.

4. A carbonated liquid discharge device comprising a body having an inlet and an outlet, an impact member having a frustro-conical cavity therein mounted within said body for longitudinal movement therein, a stationary member having a frustro-conical portion extending Within said cavity and normally spaced therefrom to provide a passage for liquid flow from said inlet to said outlet, and yieldable means normally maintaining said members in spaced relation,

whereby the initia1 onrush of liquid under pressure from said inlet will flow through said passage unrestricted to thereby clean the passage, after which said impact member will move toward said stationary member under liquid pressure to thereby partially close said passage and restrict further flow of liquid.

5. A carbonated liquid discharge device comprising a body having an inlet and an outlet, an impact member having a frustro-conical cavity therein mounted within said body for longitudinal movement therein, a stationary member having a frustro-conical portion extending within said cavity and normally spaced therefrom to provide a passage for liquid flow from said inlet to said outlet, said impact member being movable under liquid pressure from the inlet toward said stationary member to thereby partially close said passage and restrict the flow of liquid therethrough, an elongated opening through said stationary member, a plunger connected to said impact member and extending into said opening, and an adjustable stop member within said opening against which said plunger is adapted to bear to thereby limit the closing movement of said impact member,

6. A carbonated liquid discharge device comprising a body having an inlet and an outlet, an impact member having a frustro-conical cavity therein mounted for longitudinal movement within said body, a stationary member having a frustro-conical portion extending within said cavity and normally spaced therefrom to provide a passage for liquid flow from said inlet to said outlet, said impact member being movable under liquid pressure toward said stationary member to thereby partially close said passage and restrict the flow of liquid therethrough, an elongated opening through said stationary member, a plunger connected to said impact member and extending into said opening from one end thereof, and an adjustable stop member extending into said opening from the other end thereof against which said plunger is adapted to bear to thereby limit the closing movement of said impact member.

JOHN W. GARLSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 780,986 Francis Jan. 91, 1905 1,699,227 Craddock Jan. 15, 1929 2,083,639 Cornelius June 15, 1937 2,311,381 Green Feb. 16, 1943 Certificate of Correction Patent No. 2,517,083 August 1, 1950 JOHN W. OARLSON It is hereby certif ed that error appears in the printed specification of the above numbered patent requiring correction as follows:

Column 5, line 10, after the word member and before the period, insert to prevent complete closure of said passage;

and that the said Letters Patent should be read as corrected above, so that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 7th day of November, A. D. 1950.

THOMAS F. MURPHY,

Assistant Commissioner of Patents.