EP0183594A1 - Vorrichtung für die Distribution einer kryogenen Flüssigkeit - Google Patents

Vorrichtung für die Distribution einer kryogenen Flüssigkeit Download PDF

Info

Publication number
EP0183594A1
EP0183594A1 EP19850402161 EP85402161A EP0183594A1 EP 0183594 A1 EP0183594 A1 EP 0183594A1 EP 19850402161 EP19850402161 EP 19850402161 EP 85402161 A EP85402161 A EP 85402161A EP 0183594 A1 EP0183594 A1 EP 0183594A1
Authority
EP
European Patent Office
Prior art keywords
plate
neck
pipe
solenoid valve
cryogenic liquid
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.)
Granted
Application number
EP19850402161
Other languages
English (en)
French (fr)
Other versions
EP0183594B1 (de
Inventor
Pierre Pelloux-Gervais
Jean-Louis Neret
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to AT85402161T priority Critical patent/ATE31689T1/de
Publication of EP0183594A1 publication Critical patent/EP0183594A1/de
Application granted granted Critical
Publication of EP0183594B1 publication Critical patent/EP0183594B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C9/00Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/006Adding fluids for preventing deformation of filled and closed containers or wrappers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0109Shape cylindrical with exteriorly curved end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0119Shape cylindrical with flat end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0391Thermal insulations by vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0626Multiple walls
    • F17C2203/0629Two walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0326Valves electrically actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG

Definitions

  • the present invention relates to a device for dispensing a cryogenic liquid. It is intended in particular to provide a continuous stream of liquid nitrogen to a succession of cans scrolling on a conveyor, just before they are closed by crimping.
  • the dispensing device shown in the drawings in its position of use is intended to provide a continuous stream of liquid nitrogen to a succession of cylindrical metal cans (not shown) which scroll just below at high speed, contain a foodstuff such than a non-carbonated drink and are driven in horizontal translation by a conveyor (not shown).
  • This device essentially comprises a cryogenic container of conventional construction consisting of an internal tank 1 having a capacity of the order of one liter to several tens of liters, an external envelope 2 and a connecting neck 3, and disposed in the inverted position.
  • the internal reservoir 1 and the external envelope 2 which are for example made of aluminum, each have a cylindrical running part and two domed bottoms, the internal bottom being pierced with a large circular opening 4.
  • the neck 3 is a section of tube fixed with a seal at its ends around the periphery of the two openings 4, by means of respective solid rings 5, 6. These two rings are themselves welded around the openings 4, and the neck 3 can be made of stainless steel and be welded to the rings 5, 6.
  • the ring 5 defines inside the neck 3 a horizontal annular shoulder 7 provided with several tapped holes and facing downwards.
  • annular space 8 with vacuum-insulated insulation, the pumping being carried out by a connector 9.
  • the insulation could be produced from an injected insulating material such as polyurethane, or by any other suitable means.
  • the tubes 11 and 21 are welded to the plates 10, while the removable members 15 and 19 are fixed thereto by means of seals. Likewise, a seal is provided between the ring 5 and the plate 10.
  • the device also comprises a rigid ring 23 welded to the upper end of the casing 2 and provided with hooks 24 (one of which has been shown in FIG. 1), and a lower cover 25.
  • the latter consists of on the one hand a ferrule 26 welded to the lower end of the casing 2 and provided with at least one handling handle 27, and on the other hand a lower cover 28 detachably fixed on the ferrule 26 and crossed by the vent 11 and by the pipe 14.
  • connection box 29 (not shown in FIG. 2) is fixed to the ferrule 26.
  • This box comprises a solenoid valve assembly 30 - connection 31 mounted at the end of the pipe 12, a connection 32 to which the tube ends. 21, and an electrical connector 33 to which the electrical wires for controlling the solenoid valves 18 and 30 terminate.
  • the space remaining free in the neck and between the envelope 2 and the cover 25 is filled with an appropriate thermally insulating material 34.
  • the device In service, the device is suspended by the hooks 24 from a suitable support (not shown), the axis of the pipe 14 meeting at a right angle to that of the conveyor which carries the boxes to be pressurized.
  • connection 31 There is connected to the box 29 a line for drawing off a storage of liquid nitrogen under a pressure greater than atmospheric pressure (connection 31), a pressure gauge (connection 32) and an electrical supply cable (connection 33).
  • the solenoid valve 18 being closed, the solenoid valve 30 is opened, which causes the filling of the reservoir 1 to a high level detected by the pressure gauge.
  • the solenoid valve 18 is opened, which is fully submerged and therefore does not provide heat.
  • Frank liquid fills the sleeve 15 passes through the calibrated orifice of the insert 17 and flows freely in a thread along the axis of the pipe 14, without touching the latter.
  • the nitrogen vaporized in the tank 1 is evacuated at atmospheric pressure through the vent 11.
  • the jet of liquid nitrogen can be stopped at any time by simple. closing of the solenoid valve 18.
  • the filling of the reservoir 1 is carried out automatically by controlling the solenoid valve 30 in all or nothing from signals supplied by the manometer, in order to maintain an approximately constant height of liquid in the reservoir and , consequently, to obtain uniform conditions for the distribution of liquid nitrogen in the boxes to be pressurized.
  • the external part of the vent 11 can be shaped as a tunnel 11A overhanging the conveyor in order to create a more or less inert protective atmosphere in the gas volume existing in the boxes to be pressurized.
  • the connector 19 can be omitted, the electrical wires 20 passing along the vent 11.
  • the vent 11 can be bent at its upper end and be provided with a cage containing a float.
  • the vent 11 closes automatically when the liquid reaches the high level, and the pressure balances with that of the filling line (for example two absolute bars).
  • the device according to the invention applies to various cases where it is necessary to obtain a reliable and controlled injection of a clean cryogenic liquid, in particular at low flow rate.
  • the pipe 14 can be connected to a horizontal manifold itself provided with several discharge orifices arranged at several points of a packaging chain, for example to carry out inerting or localized cooling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vacuum Packaging (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
EP19850402161 1984-11-13 1985-11-08 Vorrichtung für die Distribution einer kryogenen Flüssigkeit Expired EP0183594B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85402161T ATE31689T1 (de) 1984-11-13 1985-11-08 Vorrichtung fuer die distribution einer kryogenen fluessigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8417237A FR2573177B1 (fr) 1984-11-13 1984-11-13 Dispositif de distribution d'un liquide cryogenique
FR8417237 1984-11-13

Publications (2)

Publication Number Publication Date
EP0183594A1 true EP0183594A1 (de) 1986-06-04
EP0183594B1 EP0183594B1 (de) 1988-01-07

Family

ID=9309512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850402161 Expired EP0183594B1 (de) 1984-11-13 1985-11-08 Vorrichtung für die Distribution einer kryogenen Flüssigkeit

Country Status (13)

Country Link
US (1) US4612773A (de)
EP (1) EP0183594B1 (de)
JP (1) JPH0610011B2 (de)
AT (1) ATE31689T1 (de)
AU (1) AU570903B2 (de)
CA (1) CA1265041A (de)
DE (1) DE3561303D1 (de)
DK (1) DK161035C (de)
ES (1) ES8701349A1 (de)
FR (1) FR2573177B1 (de)
NZ (1) NZ214113A (de)
PT (1) PT81467B (de)
ZA (1) ZA858506B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215446A (en) * 1988-02-29 1989-09-20 Air Prod & Chem Dispenser for dispensing cryogenic liquid

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715187A (en) * 1986-09-29 1987-12-29 Vacuum Barrier Corporation Controlled cryogenic liquid delivery
US4865088A (en) * 1986-09-29 1989-09-12 Vacuum Barrier Corporation Controller cryogenic liquid delivery
US6182715B1 (en) 2000-01-18 2001-02-06 Alex R. Ziegler Liquid nitrogen injection system with flexible dosing arm for pressurization and inerting containers on production lines
CN112610880B (zh) * 2020-12-01 2022-09-23 廊坊黎明气体有限公司 一种液氮存储倾倒装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496837A1 (fr) * 1980-12-18 1982-06-25 Reynolds Metals Co Appareil de pressurisation de recipients contenant des produits liquides non carbonates
EP0109134A1 (de) * 1982-11-15 1984-05-23 Crown Cork & Seal Company, Inc. Stickstoffeinspritzsystem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502588A (en) * 1945-04-11 1950-04-04 Linde Air Prod Co Portable apparatus for holding and vaporizing liquefied gases
DE1245998B (de) * 1963-09-06 1967-08-03 Arthur D. Little, Inc., Cambridge, Mass. (V. St. A.) Einrichtung zum Verflüssigen von Gasen wie Helium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496837A1 (fr) * 1980-12-18 1982-06-25 Reynolds Metals Co Appareil de pressurisation de recipients contenant des produits liquides non carbonates
EP0109134A1 (de) * 1982-11-15 1984-05-23 Crown Cork & Seal Company, Inc. Stickstoffeinspritzsystem

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215446A (en) * 1988-02-29 1989-09-20 Air Prod & Chem Dispenser for dispensing cryogenic liquid
GB2251296A (en) * 1988-02-29 1992-07-01 Air Prod & Chem Dispenser for dispensing cryogenic liquid
GB2215446B (en) * 1988-02-29 1992-09-30 Air Prod & Chem Dispenser for dispensing cryogenic fluid
GB2251296B (en) * 1988-02-29 1992-09-30 Air Prod & Chem Dispenser for dispensing cryogenic liquid

Also Published As

Publication number Publication date
DK522285A (da) 1986-05-14
EP0183594B1 (de) 1988-01-07
CA1265041A (fr) 1990-01-30
DK522285D0 (da) 1985-11-13
ES8701349A1 (es) 1986-11-16
US4612773A (en) 1986-09-23
JPS61115819A (ja) 1986-06-03
ES548784A0 (es) 1986-11-16
FR2573177A1 (fr) 1986-05-16
FR2573177B1 (fr) 1988-02-26
PT81467A (fr) 1985-12-01
DK161035C (da) 1991-10-28
DE3561303D1 (en) 1988-02-11
ZA858506B (en) 1986-06-25
PT81467B (pt) 1987-09-30
AU4947585A (en) 1986-05-22
AU570903B2 (en) 1988-03-24
JPH0610011B2 (ja) 1994-02-09
DK161035B (da) 1991-05-21
ATE31689T1 (de) 1988-01-15
NZ214113A (en) 1987-03-31

Similar Documents

Publication Publication Date Title
FR2474010A1 (fr) Soutireuse pour installation de conditionnement de recipients, notamment de bouteilles de liquides carbonates
FR2765661A1 (fr) Appareil et vanne cryogenique pour la fourniture d'un liquide cryogenique, et installation correspondante de conditionnement d'un produit
CA1282748C (fr) Dispositif de remplissage pour machine a remplir des recipients avec desliquides non gazeux
WO2001040097A1 (fr) Installation de remplissage de recipients
EP0183594B1 (de) Vorrichtung für die Distribution einer kryogenen Flüssigkeit
FR2813071A1 (fr) Bec de remplissage a jet en parapluie et machine de remplissage munie d'un tel bec
FR2950608A1 (fr) Dispositif de remplissage avec bec particulier
FR2643058A1 (fr) Bec de soutirage
FR2765655A1 (fr) Electrovanne et son application a un appareil de fourniture de liquide cryogenique et a une installation de conditionnement
EP0400253A1 (de) Vorrichtung zur Abgabe von Getränken
EP3880598B1 (de) Füllelement für füllmaschine und maschine mit solchem füllelement
EP0928773B1 (de) Anordnung und Verfahren zum Aufbewahren und Verabreichen von kohlensäurehaltigen Getränken
FR2612168A1 (fr) Reservoir d'alimentation en liquide pour machine a remplir des recipients
WO2008040876A1 (fr) Machine rotative de remplissage
FR2507587A1 (fr) Dispositif de distribution de boisson par tirage sous pression
FR2748547A1 (fr) Dispositif de distribution de fluide cryogenique
FR2584379A1 (fr) Citerne de transport pour metaux liquides reactifs
EP0893348A1 (de) Übertragungsleitung für kryogene Flüssigkeit, ausgestattet mit einem Füllorgan für diese Flüssigkeit
FR2597462A1 (fr) Fut de conditionnement de liquides non gazeux sous pression et procede de conditionnement de tels liquides dans le fut
FR2849012A1 (fr) Dispositif pour la distribution d'un fluide conditionne dans un recipient souple comprenant des moyens de mise sous pression du fluide
BE428260A (de)
BE848195A (fr) Soupape pour soutireuse isobarometrique.
FR2539113A1 (fr) Dispositif d'ouillage automatique
BE461449A (de)
FR2784090A1 (fr) Installation de tirage sous pression de boissons en futs notamment de la biere, et fut destine a cette installation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19851115

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19861204

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19880107

REF Corresponds to:

Ref document number: 31689

Country of ref document: AT

Date of ref document: 19880115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3561303

Country of ref document: DE

Date of ref document: 19880211

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941014

Year of fee payment: 10

EAL Se: european patent in force in sweden

Ref document number: 85402161.5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19951108

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951108

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19961001

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961010

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19961018

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19961021

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19961024

Year of fee payment: 12

Ref country code: DE

Payment date: 19961024

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19961028

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971130

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971130

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971130

BERE Be: lapsed

Owner name: L' AIR LIQUIDE S.A. POUR L'ETUDE ET L'EXPLOITATION

Effective date: 19971130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980801

EUG Se: european patent has lapsed

Ref document number: 85402161.5

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19980601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST