US2666297A

US2666297A - Container and discharge valve therefor

Info

Publication number: US2666297A
Application number: US149537A
Authority: US
Inventors: Elmer C Skousgaard
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-03-14
Filing date: 1950-03-14
Publication date: 1954-01-19
Anticipated expiration: 1971-01-19

Description

1954 E- c. SKOUSGAARD CONTAINER AND DISCHARGE VALVE THEREFOR 3 on l v Filed March 14, 1950 5 mm mm INVENTOR ELMER 'c. SKOUSGAARD Patented Jan. 19, 1954 CONTAINER AND DISCHARGE VALVE THEREFOR Elmer G. Skousgaard, Los Angeles Calif. 4 Application March 14, 1950, Serial No. 149,537

6 Claims.

The present invention is 'a continuation-in-part of my co-pending patent application, Serial Number 6,390, filed February 5, 1948, now abandoned, and relates generally to pressure vessels and containers for pressurized liquefied gases, more particularly liquefied petroleum gases and to an improved discharge valve therefor. It relates more particularly to an improved portable gas holding cartridge container and discharge valve, such as may be employed as a gas supply container in conjunction with a hand torch, Lportable stove and the like. It should be noted that the generic form of the present invention including a hollow casing, means for fillingthe casing with a liquefied, pressurized gas, outlet ineans connecting the interior of the casing with the exterior thereof, controllable valve means arranged to control flow through the outlet means, and pressure reducing means positioned within the outlet means whereby when the controllable valve means is open :the pressurized liquefied gases will be forced through the pressure reducing means inthe outlet means and will be virtually, completely vaporized, is more completely described, illustrated and claimed in my co-pending patent application, Serial Number 149,538, filed March 14, 1950.

Propane, butane and similar gases are transported in liquid form under pressure, but they quickly vaporize upon release of pressure. The conventional cartridge for liquefied petroleum gases has an opening in .its bottom, through which the cartridge may be filled, and a centrally disposed outlet tube through which the gas may be discharged. Because'of the location of the outlet tube, the conventional cartridge can be filled at most to slightly less than fifty percent of capacity. A further disadvantage of conventional cartridges, is that: the liquefied gas in the outlet tube isllkelyf to freeze inqoperation, preventing supply of the gas as required.

A primary object of the present invention is to provide an improved cartridge for liquefied petroleum gases which can be filled initially to a much greaterpercentage of volumetric capacity than can conventional cartridges. I 6

Another object of the invention is to provide an improved cartridge for liquefied petroleum gases which is constructed so that the likelihood 01 the outlet duct being frozen is negligible.

Another object of the invention is to :provide an improved cartridge for liquid petroleum gases h'avih'g a -simple control for governing the supply df'ga's from the 'cartridge to a torch, burner;

o'r bth'er device withnihich the cartridge .is vused. 55

Other objects of the invention will be apparent hereinafter from the specification and from the recital of the appended claims.

Fig. l is a side elevation, partly broken away, of a container or cartridge made according to one embodiment of this invention.-

Fig. 2 is a fragmentary view on a greatly enlarged scale, showing the front or discharge end of the cartridge and its control valve.

Fig. 3 is a section on theline 3-3 of Fig. 1, looking in the direction of the arrows.

Fig. 4 is an elevation showing on a much reduced scale a cartridge fitted to and forming part of a hand torch.

Referring now to the drawings by numerals of reference, I0 denotes the cartridge cylinder or casing. Threaded into a central opening in the bottom end wall of this casing is a valve nipple l2. This nipple has a central port I3 in it which is adapted to be closed by a ball check valve l5 that is normally spring pressed into closed position by the coil spring I6. The spring I 6 is interposed between the ball I5 and a nut I! that threads adjustably into the inner end of the nipple. The nut IT has a central bore [8 through which liquid may flow into the body of the cylinder in when the ball valve l5 is open.

A plug 20, that threads into a recess 2 I, formed in the outer end of the nipple l2, serves nor mally to seal the bottom of the casing. When this plug is removed from the casing, liquid propane or butane can, however, be pumped into the casing to fill the cartridge, the ball check valve opening under-pressure and the liquid gas flowing through the recess 2|, port l3, open valve I 5 and the duct [8 into the casing. If desired, the filling nozzle may be threaded into the nipple l2 in place of the plug during the filling operation. Y a

Welded or otherwise suitably secured in a central opening in the top end of the casing is a collar 25. This collar supports a sleeve26 to which is secured a nipple 21.

Adjustably threaded into a central bore 48 in the sleeve 26 is a valve member 30. This valve member has a conical nose 3| which constitutes the valve proper and which is adapted to seat in a port 32 that is drilled centrallyin the sleeve and which is adapted to communicate with bore 48. The valve comprising nose 3| and port 32 controls the rate of discharge of gas from the cartridge.

The liquid gas is delivered to the port 32 by a tube 35 whose front or upper end is secured by a press-fit, or in any other suitable manner, centrally in the nipple 21. This tube is formed to provide a tortuous route for the passage of the liquid gas therethrough. It has a portion 36 which is bent away from the center of the cylin- 5 der to one side of the cylinder. The portion 36 communicates with another portion 31 of the tube which is bent back toward the center of the cylinder again. The portion 31; ini'turn; ;is com, nected by aloop 38 with a parallelinclin'ed por tion 39 that extends to the opposite side of the cylinder from the portion 36 of the tube. The tube is bent beyond the portion 39 into 'aipluralitye v of loops 40 and it terminates in an inlet portions:- 4| which extends parallel to the axis of the car- 5 tridge but is offset from the axis of-thecart'ridge close to one side of the cylinder, v V I The liquid gas passing through the tube 35 1s delivered from the tube 35 into duct in-the nipple 21. Thence it passes into a filter chamber 20 formed in the sleeverfleiwhichccontains :perm'eable filter means 4$;Iwhich :may consistraofz ieltg; fabric or any suitable3permeable.tcoarsesmateriali havin'g 'a *sufficient percentage of: ivoidsf: to allow the gas contained zwi-thinc the casings! 0 :to passtherethrough. The filter meansillfi iacts 'tozbothi filterigas passing therethrough and to ..:drop,;the pressure thereof ina mannervfacilitating jcomi-r. plete vaporiz'ation thereofu This isialso-taidewby the=restricted*ports. Th p011T3Z' in the sleeve 26 communicateswith this expansidn :chamben As already statedftheportMzcommuni catestwith the bore 48 bf sleeve :2 6 whichconstituteseanothen expansion chamber.

From the chamber 48' I the gas flowsrthrough anangled, smaller*diaineter duct 49, that is drilled into valve membr- 3U alongside :the :base' of "the 'nose 3 l-, into" an elongated: duct 5n 'drilled centrally in'the valvemember 3fli A rod or bar 5| is mounted in this ducts Thediameter ot this rod orbar is slightly le'ss-thamtlie internal diam eterofthe hole 50- so'- that-'=-the gas-may flow around the I outside -of the rod between the-rod and the inside surface-*of thehole- 501 Frbm'the hole 50' the gas flows intoa chamber 620i formed 4 in'the member 62 which'is threadedly engaged within'a chamber 53 formed in the'enlarged -h'ead 54' non-integrally carried by the valve member 301* The chamber 62 a contains -anl OJrin'g- BZ adapted to sealinglyponnect the borefifl andthe 50 chamber 62a and to effectively mechanically con: nect the head 54' and 'the valve member 30 3 The head "54has 3a= knurled peripheral"surface means of V whichit may be manually gripped for rotating -the valve member'tfl to open or close or to adjustthe valve '3 12- The'knurledhead-"M is; internally. threaded to receive the-"externally threaded member 62' or-a-pipe orany other con ducting meansfo'r supplying-the gas to the stove. torch, or. other unit,iwith which the partridgeis tobeusedr Inth'e drawing,; the cartridgeis showniasform' ing 'part' of a portable burner; the burner head being denoted at in Figs l. 'lhisihead is' con nected by. a supplytube' filwith abody" member 62 which threads into the chamber 53- in the valve head .54.; The tube 6 lthreadsinto 'an angularly' disposed socket, fi3l fo'rmedwinthis' body member; and this socket, is connected ,with a .Jcentra-I 'duct 65. Whenthe body membei fil is threaded-into the. chamber "53','the duct65 communicates with the chamber SZa-and "the bore 50 The -body member 62 is provided with a lug or thumb piece get one side" by means"of-which. it -may be-roed? v V To prevent leakage of the gas along the valve 30 and to insure that it follows the desired route through the valve stem, sealing members are provided at critical points. Thus, an O-ring seal 10, made of rubber or neoprene, is mounted in a peripheral recess H in the valve 30 to engage the inside wall of the recess or counterbore 12 which is formed in the upper end of the sleeve 26. Also thereisimountedain mamas 25,abovie the sleeve 26; a" supporting"membr"15 which surrounds valve member 30 and which carries in a peripheral recess an O-ring 16. This O-ring is interposedubetweem nember I3 and collar 25 and is adapted to seat against the top face of sleeve memberZB, Also mounted in a recess or counterbore!Tbfthesupporting member 75 around the 'valve istem1'30,.-is=,another O-ring 18. A jam nut 19, which threads into the bore of the collar 2'5iserves to squeeze this O-ring between the member 15 and the periphery of the valve member-;3 u iseiasetorprevent zleakage zalongithe outside ofzthe valyle sniemberiiimiandzalsoiserves to jami the. ao-ring. J fiia'gainst hegtopc-or front faces-of: thesleevedfigto prevent'rleakage:aroundthe .out-' SidBEzOf theimembemfl 5:2 The :threepsealinglrings 10 2 1 6 z and :1 8:1 ,ther-efcrel-r-sinsure that Ithezliquid: gas -.will .notvzescapeiaroundflalve Tmember v 30 or colla'rtrfiit Insariditionito =this2seal-inggunctiomithe ="O'-"ring; BZactsato lclamp athecbodyamemberifiz; the head- 5du'and 'ztheivalxie memberzfi lmogether i when: the bodymembemiszfullyithieadedainto;the:chambera 53 imthe1headr5k When vthis:isiclone the bodyi membem62 gztherhead '.5 t.=innd=..walve member $30 willirotatei togetheraiwhemthezthiimb rpiec est 6. is: pressedtirotatablyrtdsadiusirrthe ropeningu of" the va'lveimember Mum Becauseithieinletkendaot thlertube 35: is disposed toioneside zofirthe mentraiiz-planewfvthe cylinder I fl'pthe:icylinder'xsanzbe filled :tormore thamfifty percentao icapacit I .Inzfactvdnipracticegitihas beenioundipossibl cylinderszupztofeighty four pena'centeotrcapacityi withmompletesafety;

Themartridgenlfleis placedronnitssside'zas shown in Fig???1;withitheeinlwend .3 bffithe tubesabove thexifilli'ng sport: ainl'zthe sbottomroi the; cartridge;- the plug 20 is .rirnoved ;rj;and:'2the;:liuuid gas is pumpedi intodzhe castridgezi 0; tOz-fil'lihfi-CMtlfidge up -to a point: WhBIGZtfiGQli-QllidlESISijllSt begins to, seep outrnf mhe zduciz;501\:through ,;open;valve-3 l'.- A steel cartridgexcan readilygbe 'madertoptakethe pressure so: 'builtziipiiin ztheicasinglwithout-Shaving tdimakerits; wallstexcessivelysthielm This: means that iazcartridger o asgiyemjsizew made; according to' athis invention williihavem ncapacity' approxie mate'lyi"seventytzpercentcgreater,than:a-bartridge of conventional con'structionot thesame size: A mark imay tbeiplalced=omtheioutside-ofthe cylinder so astto insurezthat iteisi'fiiiedsw-ithithe inlet-end dt cf thetube sriaipz'as shbwninFiei-rl V Anotherfeature on1the constructiomiofi;this invention is thatit eliininatesagreatmany possibi'lities, of ithemnit freezing lip. The 113100133 40 and 'SBinithe tube *35 help-prevent freezings In addition, the "liquid "gas mu st al-so pass through restricting, pressuremeducing 'means (including filter-.meansifiijbetweentheinlet end It I- of tube liquid rgasepasses fromlthestub'e 35iintdiai a row duct-A5,Ithen.intonthei relaltivelivlar enchamber containingpfilter-meansldfithensintolthenarrow port. 32 ;whoseaoutletutopening"isicontrolled by valve r 3 l ,r then into erelatively large. chamber A8, then; wrangle-narrow hucts fiilsanesfifl i to-gels.

. 5 tively large chamber 6 2'a.-' This 'vaporizes' the liquid. 7

After a cartridge has been filled to capacity,

the valve 3! is closed by threading valve member 30 down in sleeve 26 until the valve seats tightly in port 32. The valve member can be manipulated by grasping knurled head 54. The filled cartridge acts as a storage tank for the liquid gas and the gas can be safely transported in it or stored until ready for use.

To use the cartridge it is simply coupled to the pipe or duct that leads to the torch, heater, stove, or other device in which the gas is to be consumed. The restrictive, pressure reducing means in the system will convert liquid to gas as required by the burner.

When the cartridge is used with a burner in the form of a torch, such. as shown in Fig. 4, the body member 62 is tightly threaded into the knurled head 54 so that body member 62, the.

knurled head 54, and the valve member 3E, will rotate together when the body member is rotated. After opening valve 3! by pressing on thumb piece 66, the burner can be lighted. Slight pressure in either direction on thumb piece E6 then easily and closely controls the how of gas in the torch and the size of the flame, or permits the gas to be shut off entirely.

The rod BI is used because it is much easier to drill a large diameter hole 50 than a small diameter hole, and because by suitable selection of the diameter of the red the dimension of the duct formed between the rod and bore 59 can be controlled much more precisely and easily than if a small diameter duct only were drilled. Rod 5! may be provided with a bend or with teats (not shown) to hold it centered in the bore 5|] and so that it will not fallout.

If the valve gets stuck or dirt gets into the valve seat or if the valve has to be removed for any reason, the removal of the jam nut 19 permits the whole assemblage of sleeve 26, collar F5 and valve member 38 to be lifted out of the casing and replaced, which is a great convenience.

While the invention has been described in connection with a specific embodiment thereof, it will be understood that it is capable of further modification and this application is intended to cover any variations, uses, or adaptations of the invention, following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains and as may be applied to the essential features hereinbefore set forth and as fall within the scope of the invention or the limits of the appended claims.

I claim:

1. A cartridge container for liquefied petroleum gases and the like, comprising: a hollow casing; a sleeve mounted in said casing, said sleeve having a valve port in its inner end through which gas may pass out of the casing; a cylindrical valve member adjustably threaded into the sleeve to control the opening of said valve port; a resilient sealing member between the valve and the sleeve; a sealing ring surrounding the valve member and carrying two resilient sealing members positioned respectively to prevent escape of gas between the sleeve and the casing and between the valve member and the ring, and a nut removably threaded into the casing to force said two last named sealing members into operative positions; communicating means connecting the valve port with them-- terior oi the'casing; and flow restricting, pressure reducing means in the communicating means.

2. A cartridge container for liquefied petroleum gases and the like, comprising: a hollow casing; a sleeve member mounted in said casing; a nipple secured in one end of said sleeve member; a tube connected to said nipple for conducting gas from the interior of said casing to the nipple, said nipple having a port extending through it which communicates at one end with the tube and is of smaller diameter than the interior diameter of the tube; said sleeve also having a chamber formed therein communicating with the other end of said port and of considerably greater diameter than said port; flow restricting, pressure reducing filter means positioned in said chamber; said sleeve having a port therein leading from said chamber, said second port connecting said chamber with a second chamber formed in the sleeve; a valve member threaded into the second chamber and having a valve portion seating in said second port to control discharge of the gas from said casing; said valve member having a central outlet bore formed therein; and a duct formed in said valve member at one side of said valve portion to connect said second chamber with said bore, said duct being of smaller diameter than said second chamber.

3. A cartridge container for liquefied petroleum gases and the like, comprising: a hollow casing; a sleeve member mounted in said casing; a nipple secured in one end of said sleeve member; a tube connected to said nipple for conducting gas from the interior of said casing to the nipple, said nipple having a port extending through it which communicates at one end with the tube and is of smaller diameter than the interior diameter of the tube; said sleeve also having a chamber formed therein communicating with the other end of said port and of considerably greater diameter than said port, flow restricting, pressure reducing filter means in said chamber; said sleeve having a port therein leading from said chamber and of smaller diameter than said chamber, said second port connecting said chamber with a second chamber formed in the sleeve and of larger diameter than the second port; a valve member threaded into the second chamber and having a valve portion seating in said second port to control discharge of the gas from said casing, said valve member having a central outlet bore formed therein; and a duct formed in said valve member on one side of said valve portion to communicate said second chamber with said bore, said duct being of smaller diameter than said second chamber; said tube having an inlet end at one side of the center line of said casing.

4;. A cartridge container for liquefied petroleum gases, including a supporting member mounted therein provided with a central port for discharge of gas from within said container; a valve member rotatably threaded into said supporting member and having a valve portion formed integral therewith which seats in said port and controls the opening thereof, said valve member being longitudinally bored and having a duct formed therein at oneside of the valve portion to conduct gas from said port to said bore; a coupling member threaded into said valve memher for connecting said bore with the apparatus in which the gas is to be consumed, said coupling having a manipulating lug thereon whereby it mambefirota tecwsaid EwummQmEmbenhaVingQ-a ductsdahenethr'mzghl thl'OUgQzWhiCh; the; egass flow-ifmrmthexborewofi the valve member-vmosa-ide gas consuming apparatus; chamber means in the.

supportingzmembem in :commun-ication with :the

portimeans andi permeable =fi1-ter means. carried-1 in n the: chamber: meansun'dera'a selectedscomprese sion-u such:v that virtually ali 1iquefied. Y petroleum gases passing therethrough twili- ,bevirtualiy-eomvi pletelyavaporizedzm 5. A devicer'ofithei character defined in :claimA; l, including: means interposed betweenthe coupling; member: andinthe. evalveflnember iota-resiliently clamping the coupling membento thervalve meme-3 berso. that 1the two rotate-togethe1z.;.

6. -:A cartridge; containenforiliquefiedepetroleum f gases comprising a ryIindricalcasing havingea centraL.-port-- imits base; through which liquidv gas maybe supplied. tokthe casing; means for; closing z;

said port; a 1supporting:gmembemdisposed-ssen-s trallyi in the: other 1 end: ofethe v casing; andzhavingw. a port through which gas-may lee-discharged from:- within *said casing-e 1a evalve \-member-rotatab1-y.;- threaded-into saidsuppontingmembersand havingq a valveportion-adapted ito 'iseati in' said port; a

duct 'extend'inguaxially oit'rsaid valve-member a duet at' oneisidefofi-said val-xemember-connecting: the first named duct with said port; angina? knurled-head fomnedrnonvsaid valve-member :ex ternaily oftsaidacasinga for: manipulationaofiasai a valve member; chamber meansin theesupporting-u memberv inecommunication ;with :theport means-e andi permeable filter means i carried in the cham-li ber means unden-a selected compression such that virtually {2111i liquefied petroleumwgases massing; therethrough fromwwithin the winterior -ofwth.--r casings-will be-.virtua1ly completely. vaporizedd ELMERZCuSKQUSG-AARDE.

References citeaim'thefil'e 0f thispatent Number Number-= UNI-TED VSTATES PATENTS i