US2666667A - Fluid dispenser - Google Patents

Description

Jan. 19, 1954 T, WARD 2,666,667

FLUID DISPENSER Filed April 5, 1947 s sheets-sheet y1 INVENTOR lai/renne T Ward ATTO NEYS Jan. 19, 1954 L. T. WARD FLUID DISPENSER Filed April 5. 1947 FIG.

Fmr. 7

INVENTOR Lau/T5175@ Il Ward r y /At-/rroRYs BY dy* L. T. WARD FLUID DISPENSER Jan. 19, 1954 s Sheets-sheet s Filed,

Fler. I5

BY y f/ ORNE Spier" ngi or' J4`o'tll'ervvise o'pnixi'g "the capsule Vand regulating the 'di's(ATlagj'oftheT cohteilts.'"' Ywith" n*thse* and 'is'tll'otherf objects `which will appear' infth'e follow 'g jfull"description in mind,

kthe device .of Figure f1, 'and is.. maken en .the .line

Patented Jan. 19,k y1954 referir oFFIcE aereas.:

` to improvements in dis- ."e're particularly in 'aD- n "lili-nina ria fis dispensed ,spray or matm zeg fr oriz'ed forni. from vide"amnpoyeeeirpense for esewitn a: capsuie containing" mantenerte te aiepensedunder pressure, and in which' provision 'i's'made" for the 'invention Lcons t's".ix`1theYH combinations and arrangements of parte. and-details'qf construction; lwniehiwn1 infirmes-'Lne ful-1y. described with 'efrexceto the 'accompanying drawing and then 'e morepaiiticula lg pointed' out in the" appended @n0 T Viard, Bhilaaelph elemente to -1 ehm@ Q m1-gw,

Figure 1 '1a-asidey ,elevation .c f a device .embcdy- YFigure 12 is a vcentral vlongitndinal sectipn of Figure'is a rearv leraticn pf .the .device .of

"Figure f4 is an enlarged new .of theunpernor- E igure .usa section ion' fline, 1,5-5 er Eigure and.tothesarrie` vscale Eikure; y 1 "i l l Figure ..6 .is a' detail v wpoa piercing: .point and v.associated elements .110i lFigure'A, urthei enlarged;

ia, Ba., assigner, by

. 2, space 2 which is adapted to receive a capsule of generally known Ushape; as indicated in dotted lines in Figure 2. One Wall ofthe body member I has'an aperture 3 formed therein for insertion ofthe Vcap'sul'efThe baseof the'body member I is slottedfas 'indicated'at 4, and receives a cross bar l"or plate V5 having a threaded central opening A' cup'shaped'member l 'ts over the lower end-of "bodyl'and lcarries a 'centrally located screw 8, the'screw 8` cooperating With the thread- Ye'd"'c'ieing'l; 1vThel rim ofthe member 'I is generally"cylindrica1,"fitting"aroundthe body meml' ber'I'; and'is'forlne'd with ribs 9 to facilitate turning byth'e fingers. llieupper portion I0 of the Sfcrevi'f serves"asv an "abutment for forcing ,the

capsule' upwardlyvvthn'the body I for piercing the 'ameiandf holding'it'rmlyin dispensing po- .-VM. ",WT .1 ,l A Y ""Tli'e upper 'end of the body member I isforrned 0 Wtha longitudinal recess'l I for receiving a valve spring 'l2 land-hasa transverseaperture I3 for receiving the valve and" nozzle block I4 and 11D- `p'e' endof the operating lever I5." The block I4 fits Within the body" I, asindicated, and is held 'securely'therein by-A a -close'fit With the `edgesof the"aprture"lr3along the surfaces I6 and by 'ir'iansofpin "ITINclriven'v through apertures. I8 therein "and aligned "aperturesv I9" inthe .body I. 1 The pin |11alsofser.ves"as aizbearing shaft for pivotallyfcarryingzthe operatinglever l5.. I .`""Blcl'-I4'-is'formed'fwith a nozzle opening Agr 4dis' char'ge' rice "21) communicating through pas- Sa'ge2 I: withian annular lgroove22 at the top of 'b'lclllf ""Surroundingthe" groove 22 is an up- Eigurei' is ,aside elevation'ofa Inodedds- 35 "standing vvall23iwhse rim 1,25 is .turned overto pensing device:

YFigure .8 is .enlarged .central .longitudinal of dispensingdeyice; y

,enrtlle line ILD-+110 .cf llilie- :longitudimu @actions chrtien Kche upper .part of ,capsules .DI Lthree ,ditrentiiprm. and Shdwng 50 .ber orsimilar.elasticmaterial thro .sealingandlpiercng:elements T lliblld'afsealng plug r disk .'24, `of rubber or other suitable'elastic rnaterial.;l jglhe rimz,.2.5V lforme an abutment for"shoulder'forf'holding .the disk 2,4111 compressed'relationito block ill-and forming a Sealiftlierewith along its ipe'riphery. The vupper 'surfaceof block'iI nwthinkthe r efldoyye. 22, nforms' a yalveff'seat :26.Which cooperatesawth the disl; 2.4, and the body Mfhas Lafport -at ythe lenel of `inlet passage' -21 'extending downwardly .f rQln A the "cen- 'iito lrecSS Grec-cke@ 2.8y reQeiYeSe Piele- Y ing-.pines ffhazving 1a centrarlocre .30- .formine a vthereof. Y

m'rhe ,Qperating derer s flfmed. with@ Pmi-e9' required size for 3 mally pressed downwardly thereagainst by spring I2 so as to force the valve disk against the seat 26 and seal oi the inlet passage 21. Pressure on the lower end 35 of the handle I5 will lift projection 34 against the action of spring I2, thus unseating the disk 24 and permitting fluid to flow from inlet passage 21 into the groove 22 and thence into the outlet passage 2l, from which it emerges as an atomized spray from the nozzle 20.

As best shown in Figure 6, the piercing pin 29 has a tapered end portion which extends through aaeaeev the sealing disk 3| for piercing a capsule and a central bore which continues the'bore 21 so as to discharge fluid from avpierced capsule vinto the bore 21. The upper portion of the piercing pin 29 is generally cylindrcalpbut ihas an annular groove. into the socket 28 and the surface ofV block I4 surrounding the pin is struck with a staking tool so as to compress the metal of the block I4 into the annular 'groove of the pin 29, as indicated, for firmly holding the same.

The dispenser of the invention may be manufactured in various sizes for dispensing fluid from capsules or containers of various sizes. However, it is intended primarily for use with small capsules, which may be manufactured very inexpensively and with which it is difficult to provide self-contained valve and valve operating mechanism. In such use, the device will generally have an overall length of about four or five inches and the body I will be about an inch in diameter so that it is conveniently held in the fingers for operation by pressure of the thumb against handle I5. The capsule from which the liquid is to be supplied is inserted into the open space 2 with the cap 1 unscrewed so as to make room therefor and the cap 'I is then turned so as to force the `capsule upwardly. by means of abutment Ill,v

against the sealing disk 24. Sufficient pressure is exerted so as to form a pressure-tight seal between the rim of the capsule neck (see Figure l2) and the disk 3l. At the same time the piercing point 29 will pierce the end of the capsule so that fluid therein may enter passage 3D at the piercing point and thus be carried through `pas- -sages 21 andA 2I to the discharge nozzle.

The above described design provides for inex- In assembly, the pin 29 is inserted v pensive manufacture by die casting,vforging and-.3

similar inexpensive quantity production methods. The capsules used will generally contain a propellent such as carbon dioxide under high pressure, which has heretofore required dispensers constructed by precision manufacturing operations. In the device of the invention, however, body I may be simply formed as agdie casting and the valve and discharge orice block I4 may similarly be formed as adie casting, forging or otherwise molded element. The passages 2l and- 21 will be drilled therein and may be of aconvenient and fairly 1arge diameter, such, for example, as a thirty-second of an inch, the small orifice 20 being formed therein by a staking operation. In therpreferred method of construe-.;`

tion, the valve block I4, adjacent the orifice 20. will be cylindrical inthe rst instance, and a wire of the required diameter, a diameter Vof '.004 or .006 being suitable for most applications, will be inserted in the opening of the discharge boreL 2 I. A blow by a staking tool surrounding the wire produces the concavity surrounding the orifice 20, as indicated, and reduces the orifice to the required diameter. Inthis way, an orifice of any tion is produced and the surface surrounding the end 14 of' theV body-"II, and having a seat 15 for.

` Orce body member: 11.

operateddevica erwiseformed rims soas to compress these elements and "form a peripheral seal therewith. The valve operating projection 34 is preferably convex, as shown, so as to apply its pressure to the central part of disk 24 overlying the inlet port and it will be observed that even though the pressure within the capsule and within the passage 'A21 maybe veryA high, the valve operating pres sure mayV be'quite small and suitable for a finger L For example, with a central bore which is one thirty-second of an inch in diameter, `the pressure against the valve disk in seated position will be approximately one-tenth `of one :percent of the fluid pressure per square inch. Under such conditions, the device may be readilydesigned for rholding in the fingers and operating the lever l5 with the thumb without requiring the exertion of any undue force. When the valve `is closed, the spring I2 reacts against the. material of the bodymember I; eliminating the need for a strong supporting structure formed on the valve body member.

.In the .form of the'invention shown in Figures 7 and 8, Vthe body memberv 5Iu and cap 52 are similar, exceptas hereinafter pointed out, to the body member Iz-and cap 1, previously described. A different-type of valve control, however, is used, and the upper .portion of the body member 5I is modified accordingly. In the construction of .Figures 7 andi` 8, theupper Vportion of the body member I has 'a transverse aperture 53 for receiving the valve and orifice body 54, which fits therein and is fastened by means of a pin 55, This-valve' body and nozzle memberis formed Vsimilamlyto that ypreviously described in connection with Figures 1 to 6, similar parts thereof beingfvidentied bysim'ilar reference numbers and .accordinglywill not be further described. A different form of valve control means is',xhowever,

employed, takingth'e form of a generally conical cap 55, grooved as indicated for providing a nger g'rip' and .having ."acentral screw-threaded portion51 for cooperating with aV screw-threaded opening 58 formedintheend of the body 5I. Around the opening 58,1the bodyv 5I is grooved or.cut `into ashoulderas indicated at 59 and a skirt portion I, offcap56`, is. formed to conform to the shape of =this'-groove. When the cap 56 is rotated so as to bring the skirt 6I] into contact with the baseof-the'fgroove 59,"further rotation is prevented and'tlieivalve'disk 24 will 'be held in sealing relation itoithevalve seat 25 by meansY of projection ISIy vcarried bythe member 56. In this form of construction, the dispensing device will normallybe heidi-none' hand while :the cap 5B is turned by the other. Figures 9 -to"1-2 sh'ow' stilla further modification. In this form of the device, the body 1I is generally square insectiomthe cap 'i2 having an upper externally threaded portion 'I3 cooperating with4 the internally threaded round lower fittingr against the 'capsule'and' exerting pressure thereon. In the upperend of the body il, the apertures 'I6 and 'liaccommodatethe valve and The member 11Vhas lateral ribs 19,' fitting in grooves 180 (Figures 10 producing the desired atomi'za-l` and 11) withinthe body member 'I I, and is formed with a projection 8| which serves as a fulcrum 91:r vthrift,perating lever 82' inte di top ofrenda-e2,

1 g disk 24, t ivalve "open d by pressing on the lowerjeiid 85 of the'lever. `This -devicemay be assembled by putting the spring 33v in place, and thenvinserting the mein n Tl and' handle 82,'thror 'h apertureli untilthe spring snaps into p'o's n as indicated, hack ofshoulder St'jonlever'e.

)ne' o'rinbf capsule, which issuitable for use with 'thedis'pensers vjust described, is shown in Figure 7. The capsule body has a neck which is 'internally grooved to forma Ishoulder or annular, 'scatti yupon which may be' vplaced 'asheet metal closure 'element having a peripheral* flange 92 and central portion 93 forming a socketfor receiving and holding the ippr end of the cen-` tralfoui/ let or syphon tithe-92|;`A A rubber or similarwasher S5 is placed over the yflange 9l2surrounding the central portions?, and the lip of the capsule neck is turned over to compress the washer 95 and form a seal. When the capsule is placed on the dispenser, the central portion 93 of the closure element is pierced, as indicated in the drawing, connecting the discharge tube to the outlet passages. In actuality, when the capsule is pierced, the rim ofthe capsule neck will be pressed into the sealing disk'beyond the point indicated in Figure 8, so as to form a seal therewith. This form of capsule permits use of the device in an upright position Without losing the CO2 or other propellent gas.

Other forms of capsule are shown in Figures 13 to l5.

sule, a piercing point is not required and a valve operating member IUE having a huid passage |06 may be substituted for the piercing point 28 previously described. The capsule is formed with a rim lill surrounding the valve stem and forming a seal with the disk 3 I.

The capsule of Figure 12 employs a self sealing plug Ht of rubber or like material, of a form similar to that disclosed in Alexander application Serial No. 656,234, led March 22, 1946, for Dispensing Liquid Chemicals; y Such a plug is capable of resealing when the piercing point is removed .and accordingly permits removal of the capsule from the dispenser before its contents are exhausted. The central discharge tube Hl is enlarged at its upper end to nt the neck of the capsule below shoulder H2 formed therein. The plug H0 has a-lower portion tting inside the tube I I l and an enlarged upper portion which seats on the shoulder H2. Turning over the lip of the capsule mouth compresses the plug I l0 and forms the seal. Y The capsule of Figure 13 utilizes a ball valve, seating against a rubber or similar closure member. In this case, the enlarged end of central tube l l5 fits within the capsule neck and is surdiameter than the lower portion of tube H5 so In the capsule of Figure 13, a valve member lil@ seats against a surface IBI for seala r ijuipper part thereof; when trie jeremg" 'pia 2 9 'is' inserted through plug ne, liquid will be 'discharged"therethrough since ball :lawn-i not seat upothe pin but win-move about inl a r'a'ri'l'cm'i wayv and 'assume a position :to one side :'of Athe When, however, the pin is withdrawn, ball H9 will seat against the aperture in plug Hfaccommodat-ing the pin, and formin'ga secure seal. this construction,

the 'plug'A H55 may be formed'of stronger material than inv the` embodiment of Figure 12 and neednot possess' the same self-sealing charac-Y teri'stics.v

Allforms of capsules yused with the dispensers disclosed herein1 ivillpreferably have their valve means so ,positioned within thefneck of the capsule and the dispenser piercing or valve operating element and sealing disc will beso related to each other, that pressurel of the mouth ofthe capsule against thesealing disci'lrst forms Va seal therewith and increased pressure thereafter opens the capsule.

What is claimed is: f

l. In a dispenser of the kind described, and in combination, a valve body havingra discharge passage extending therethrough, a capsule piercing element connected to one end of said discharge passage, an elastic sealing element surrounding said piercing element for sealing against the mouth of a capsule pressed thereagainst, a valve seat formed on said valve body around the other end of said discharge passage and having an outlet port spaced from said discharge passage, an elastic sealing disc upon said valve seat, the valve body comprising an upstanding wall surrounding said disc and turned over its periphery to form a seal therewith, and

dispensed.

2. rn a dispenser of the kind described, and in "combination, a valve body having a discharge passage extending therethrough, a capsule piercing element connected to one end of said discharge passage, an elastic sealing element surrounding saidv piercing element for sealing against the mouth of a capsule pressed thereagainst, a valve seat formed on said valve body around the other end of said discharge passage and having a groove surrounding the discharge passage and an outlet port connected to said groove, an elastic sealing disc upon said valve seat, the valve body comprising an upstanding wall surrounding said disc and turned over its periphery to form a seal therewith, and a manually operable valve operating member for pressing said valve disc against said valve seat adjacent the discharge passage and releasing said pressure, to control the flow of fluid to be dispensed. l

3.V A dispenser for use with pressure capsules of the type indicated comprising, in combination, a body member having a central space for accommodating a capsule and capsule holding means including means for applying pressure in Aa predetermined direction against the bottom of a capsule, an opening through the body member adjacent said space and extending transversely of the said direction, a valve body member seated in the said opening and held therein and having meansior abutting the discharge end of a capsule and supporting the same against pressure applied by the said capsule holding means together with means for receiving fluid from a pressure capsule held in the said space, an orice for discharging the lsame and valve means for controlling said discharge, and the first said body member surrounding the said opening engaging the valve body member for supporting the same against pressure applied thereto by the said holding means through the capsule.

4. A dispenser according to claim 3, in which the said valve means comprises an elastic sealing disc carried by said valve body and operating means therefor including valve closing means reacting against the said dispenser body member.

LAWRENCE T. WARD.

Name Date Mobley Jan. 18, 1927 Number Number N umher 20 793,007

8 Name Date l Lemoine Jan. 7, 1930 Andvig Aug. 1, 1933 Mapes June 5, 1934 Adam Mar. 12, 1935 Kelley Nov. 9, 1937 Threm May 30, 1939 Bennett Aug. 1, 1939 Stebbing Aug. 8, 1939 Axtell et al July 16, 1940 Moon Nov. 24, 1942 Gruett July 20, 1943 Rotheim Nov. 30, 1943 Carlson Mar. 7, 1944 Ward Nov. 14, 1944 Ward Jan. 9, 1945 FOREIGN PATENTS Country Date France Nov. 7, 1935

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