US2908145A - Apparatus for dispensing gas material - Google Patents

Apparatus for dispensing gas material Download PDF

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Publication number
US2908145A
US2908145A US648395A US64839557A US2908145A US 2908145 A US2908145 A US 2908145A US 648395 A US648395 A US 648395A US 64839557 A US64839557 A US 64839557A US 2908145 A US2908145 A US 2908145A
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United States
Prior art keywords
pressure
liquid
container
line
withdrawal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US648395A
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English (en)
Inventor
Haumann Wilfried
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE566023D priority Critical patent/BE566023A/xx
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to US648395A priority patent/US2908145A/en
Priority to FR1203639D priority patent/FR1203639A/fr
Priority to GB9052/58A priority patent/GB821811A/en
Application granted granted Critical
Publication of US2908145A publication Critical patent/US2908145A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0107—Propulsion of the fluid by pressurising the ullage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0121—Propulsion of the fluid by gravity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0376—Localisation of heat exchange in or on a vessel in wall contact
    • F17C2227/0381—Localisation of heat exchange in or on a vessel in wall contact integrated in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers

Definitions

  • Thisinvention relates to-a method of andA apparatus i.fon storingK and. dispensingI low-boiling liquefied gases;
  • '.laWaboilingfgases. may bedeinedas -those having boiling @pints att-,atmospheric pressure below- 2309 F., suchas oxigna Iaridlnitrogen, for example. More. particularly, it. concerns-fan, improved ⁇ method and apparatusfor deliveringgsuch materials 1in gaseous-form-from liquid stor- .raggi-ready.for-.immediate use.- atl superatmospheric pressore.
  • Insuiatedfconverters are commonly employed for re- 2t.iving, gaA lowltemperature liqueliedl gasand vaporizing ,andladispensing-.the gasat a controlled superatmospheric GBFPSSUVIe. ⁇ These converters mustqalso serve as. highly Y etetivefstorage-.vesselstoconserve the liqueed gasduruiuggextended'periods oftime inzwhich there, may. beno dispensing-,ofthe-contents;. Since the liquid chargedinto .theserconvertersf is1-normallyv saturated; (in l thermal:r equiwithgits'fvapor) withfrespectto-a1ow;delivery.
  • pressnrejspecialprovisions are neededto imposefand maintain a. higher nonequilibrium pressure suiiicient ⁇ for thegneeds. of the.- consuming; system..v
  • valve employed fbe'agsifively- 'inativated Without; depend ICC . 2.V y ence4 uponV the leak-tightness of a' control: valve. Also, complete control of -both ⁇ pressure: building.r and consumer .withdrawalacan be. accomplishedin thissystem by. only la singleautolmatic con-trok.
  • a more particular objectief ⁇ theinvention is to provide a converter for'storing low-boilingv materials in liquefied formand for dispensing lsuch materials ini gaseouswform, which is provided with. an. automatic pressurefbuilding and vaporizing system. l
  • a ⁇ customer containerifor converter 16 provides a. unique system fordispensingin gaseous form and'at ⁇ apredeterminedservice. pressure materialwstoredin liquidphase.
  • Customer serviceeiszinaugurateds imply by'connecting. service line. 60 toithe customers line v.(not shown)said customers linen-usually havinga pressureregulating valve1therein.
  • the service line. 6.0. is conneotedzthroughi a..vaporizing coil; 641Vv disposed between the .converter casing.- 17 and. an inner. vessel. 18. with both the .liquidi and .gas phases .ofthe-vessel 181-.
  • T.junction z 7 interconnecting. the ⁇ liquid i withdrawal line,'.the gas withdrawalline 74"and a line..76 leadingito theY inlet end ofthe.: vaporizing ⁇ coil 64.”. Tliegasiwithdrawall line 74.is connected with thezgasl.
  • Line 76 leading" to the coil 64 is branched z aboubat the ⁇ normal full liquid level.' at: another?. T-junctionz-or interconnection j Aline-92.; extends' from thisrappint vertically downwardl .to .a check .valve :94v at zonerendfoff ⁇ a vaporizing coil 96. ⁇ forrnin-gyjpartE off ia .means :for@.huild ing,- 'and maintaining ;a pressure in the-vassel-ltlaati-a 'stantiallyr4 ⁇ cnstarit value dwing withdrawal forF leffecting delivery of the liquid phase material to the vaporizing coil 64 for delivery to the service connection 60 at the desired substantially constant pressure,
  • the inlet por- ,ation of/vaporizercoil 96 is locatedbelow the'level ⁇ of '.'theffliquid ingthe vessel 18, andpreferably below the ,lowest point zon thebottorn of
  • a vapor return line 98v leads from the other :,endaof coil 96 .to the top part of vessel 18.
  • Avunidirectional flow device such as check valve 94 acts to prevent backow of vapor from the vessel gas space to the customer through the pressure building circuit and to prevent the vapor generated in the pressure building coil from flowing back to the customer rather than to the -gas space of the vessel.
  • line 9.2 may be extended in the form of Van elongated liquid cation with, the outer Wall of the container.”
  • the container is overlled, residual liquid inthe coil 64 at the termination of a withdrawal vaporizes ⁇ and expands, or residual gas lin the coil 64 expands, and the gas under pressure forces liquid kin .the down sideof the loopptjjbaclgfup over the ltop of the loop and forms a gas trap to prevent liquid feeding into theY relatively warmfvapbriziiigboils 64 and 96. ⁇
  • liquid would feed into the warmcoilsand force warm gas back intothe container, thereby V'adding undesired heat to the container.
  • a conduit, gravity-fed with liquid fr'ifn wardly extendingV Ilegs of .such a trap would continue connection 90, to the pressurebuilding vaporizer, but" vapor cannot normally return through ,-therline toY connection 90 ⁇ due to the liquid seal maintained in the trap.
  • ⁇ the opening of the service ⁇ connection to a demand estabalishes a pressure differential between lineV 60 and thev interior of the lvessel 18. If the pressure vin the gas ⁇ space exceeds the setting of regulator 78, withdrawal -takes place from-theY gasrphase as described above. If
  • the- I established pressure differential causes liquid to be forcedV ⁇ up through the eduction line 66, over .loo-p 68, down f through lines 70 and 76, and into the vaporizer coil 64. .At the, same time, the ilow of liquid Vinto line 76 Aalso the withdrawal line, is connected outside'the'fin'ner vessel to the inlet of pressure builder 96.
  • the force orV the liquid head exerted by gravity on thefipres- -sure builder is'only that liquid inthe downwardly eirtending portions of the withdrawal line Y andl feed-conduit,
  • valve 84 opens.
  • the pressure drop between intercond nection 72 and the gas space is lower than the pressure drop across lines 66, 68 and 70,1liquid flow is terminated, and further withdrawal takes place fromthe gas moving parts, providing reliability andgreater'dependawill without attention to, or control of, 'the converter.:
  • connection 90 for ⁇ delivery into line 92 the pressure l'building systemwautomatically ceases to function until the pressure in the vessel falls below the setting of the regulator 78 to effectfclosing of valve 84.
  • the junction point 72 In ⁇ order to "insure against continued withdrawal of liquid when valve 84 opens,'the junction point 72 must beat a level near or preferably abovejthe normal full liquid level ,of the ⁇ container so -that any Siphon action that might lothewise spirit of this invention as dened in What is claimed is: l. Apparatus for dispensingl the appended claims.
  • a heat-insulated container for holdingvsuch liquee'd gas material undera predetermined superatmosphericpressure; a service connection for consumption apparatus yhaving a vaporizer therein; a liquidV withdrawal linefextending upwardly from one end at a lower'reigio'n offthe container to above normalull liquid lev'eltfof thefcontainer and being connected at its other vendhto saidservice v A'120 provide a free ilow passageway between the ⁇ low of the container ⁇ and the service connectionw'so can pass freely-through lsaid withdrawal line-v tos d servv ice connection whenever a pressure 4diirence exist'sacross the liquid withdrawal line that at'leastjequalf, 4 the flow resistance therein; a gas phase withdrawliline o nnecting the upper region of the container above the nrmal full liquidlevel with'theyliquid withdrawallne at a point above said level; Yvalve means in/saidI 'gas'fph
  • liquid withdrawal line being open to provide'a free. flow passageway between the lower region of'the container and the service connection so that-liquid can; pass freely. through said' withdrawal line ⁇ tot said service connection whenever a pressure diiference exists.
  • pressure Vbuilding meanswfor maintaining pressure in said container comprising an external fluid circuit having a feed line connectedat one e nd with the liquid withdrawal line at l a p oint such that liquid from the withdrawal'line flows Tinta thefeedlineby gravity, a vaporizer connected with the other end of the feed line and positioned to receive liquid from said feed lineunder a total gravity head of liquid atleastrequalto the height'of liquid'y in said con tainer, and a return line for passing vaporized material from such vaporizer to-thecontainer above the normal full liquid level; said externalV huidl circuit containing therein unidirectional flow means positioned to permit nid flow in a direction from the liquid withdrawal line to the vaporizer but restricting :duid flow in a direction from the upper'region of the container to the liquid Withdrawal line.
  • Apparatus for dispensing in gaseous form a lowboiling gas material stored in liquefied form comprising a heat-insulated container for holding such liquefied gas material under a predetermined superatmospheric pressure; a service connection for consumption apparatus having a vaporizer therein; a liquid withdrawal line having a first, upwardly extending leg leading from a lower region of the container to above the normal full liquid level of the container and a second leg extending downwardly to a lower region of the container and being connected at its lower end with said service connection; said liquid withdrawal line being open to provide a free ow passageway.
  • vaporizer connected withthe other end of said feed' line d and dsposedat alower region of the containerto receive liquid. therefrom under gravity flow,- andare'turnline for passingL vaporized material in such vapori ⁇ zer tol the container, above the normal full liquid level.
  • a process for converting a low boiling liquefied gas to gaseous form and for delivering gas at a predetermined elevated pressure to a withdrawal connection in response f lto a'dernand for gaseous materiaL'cornprising' providing ⁇ v'an ⁇ insulated container under said predetermined elevated 1 -pressure with liquid saturated with respect to a pressure substantially lower than said predetermined pressure, con- ⁇ y ducting liquid from a lower region of the container vto an ⁇ upper region above the normal full liquid level in .
  • i vferential between said container pressure and the pressure in the withdrawal connection is reduced to a value below that required for said conductings of liquid and additional liquid, thereby terminating said conductings of liquid and additional liquid and initiating the lrlow of gas from said upper region to the withdrawal connection.
  • said liquid phase being under the pressure of the gas phase.
  • said liquid phase being under the pressure of the gas phase and saturated with respect to a pressure substantially liquid ⁇ from 'the Yliquid phasefupwadiyjagainst e *te fof gravity to a height atleastfabo've th nor ai-ffailfiiqiiid' Ylevel of said source.
  • Apparatus for dispensing a gaseous-form vlofwboiling gas material stored' in liqueed form ' lcompris'ing a heat-insulatedcontainer vfor holding such liqueiie'dgas .material under a predetermined superatmospheric, pres- "sure; a. service connection for4 consumption apparatus having a vaporizer therein; 'a liquid withdrawal linefextending upwardly. from one endat a lower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US648395A 1957-03-25 1957-03-25 Apparatus for dispensing gas material Expired - Lifetime US2908145A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE566023D BE566023A (US06623731-20030923-C00052.png) 1957-03-25
US648395A US2908145A (en) 1957-03-25 1957-03-25 Apparatus for dispensing gas material
FR1203639D FR1203639A (fr) 1957-03-25 1958-03-21 Appareil de distribution de gaz liquéfiés
GB9052/58A GB821811A (en) 1957-03-25 1958-03-21 Apparatus for dispensing gas material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US648395A US2908145A (en) 1957-03-25 1957-03-25 Apparatus for dispensing gas material

Publications (1)

Publication Number Publication Date
US2908145A true US2908145A (en) 1959-10-13

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ID=24600614

Family Applications (1)

Application Number Title Priority Date Filing Date
US648395A Expired - Lifetime US2908145A (en) 1957-03-25 1957-03-25 Apparatus for dispensing gas material

Country Status (4)

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US (1) US2908145A (US06623731-20030923-C00052.png)
BE (1) BE566023A (US06623731-20030923-C00052.png)
FR (1) FR1203639A (US06623731-20030923-C00052.png)
GB (1) GB821811A (US06623731-20030923-C00052.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963874A (en) * 1957-08-05 1960-12-13 Columbia Southern Chem Corp Method of and means for storing chlorine
US2964916A (en) * 1957-10-14 1960-12-20 British Oxygen Co Ltd Production of inert atmospheres in storage vessels, fuel tanks and the like
US2993344A (en) * 1958-11-06 1961-07-25 Phillips Petroleum Co Lpg transport loading
US3107498A (en) * 1961-03-13 1963-10-22 Conch Int Methane Ltd Portable insulated storage tanks and valve means
US4592205A (en) * 1985-01-14 1986-06-03 Mg Industries Low pressure cryogenic liquid delivery system
US5946920A (en) * 1995-03-31 1999-09-07 Spembly Cryosurgery Limited Method and apparatus for supplying liquid cryogen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US576985A (en) * 1897-02-09 Frederick a

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US576985A (en) * 1897-02-09 Frederick a

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963874A (en) * 1957-08-05 1960-12-13 Columbia Southern Chem Corp Method of and means for storing chlorine
US2964916A (en) * 1957-10-14 1960-12-20 British Oxygen Co Ltd Production of inert atmospheres in storage vessels, fuel tanks and the like
US2993344A (en) * 1958-11-06 1961-07-25 Phillips Petroleum Co Lpg transport loading
US3107498A (en) * 1961-03-13 1963-10-22 Conch Int Methane Ltd Portable insulated storage tanks and valve means
US4592205A (en) * 1985-01-14 1986-06-03 Mg Industries Low pressure cryogenic liquid delivery system
US5946920A (en) * 1995-03-31 1999-09-07 Spembly Cryosurgery Limited Method and apparatus for supplying liquid cryogen

Also Published As

Publication number Publication date
BE566023A (US06623731-20030923-C00052.png)
GB821811A (en) 1959-10-14
FR1203639A (fr) 1960-01-20

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