EP0000031A1 - Thermal and sound isolating glass unit - Google Patents

Thermal and sound isolating glass unit Download PDF

Info

Publication number
EP0000031A1
EP0000031A1 EP78100052A EP78100052A EP0000031A1 EP 0000031 A1 EP0000031 A1 EP 0000031A1 EP 78100052 A EP78100052 A EP 78100052A EP 78100052 A EP78100052 A EP 78100052A EP 0000031 A1 EP0000031 A1 EP 0000031A1
Authority
EP
European Patent Office
Prior art keywords
volume
neon
ratio
percent
glass unit
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
EP78100052A
Other languages
German (de)
French (fr)
Other versions
EP0000031B1 (en
Inventor
Edith Dr. Leicht
Friedrich Günther
Reinhard Strigl
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP0000031A1 publication Critical patent/EP0000031A1/en
Application granted granted Critical
Publication of EP0000031B1 publication Critical patent/EP0000031B1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation

Definitions

  • the invention relates to an insulating glass unit with glass panes kept at a distance and between the panes sealed against the atmosphere.
  • the object of the invention is therefore to develop an insulating glass unit with favorable sound and thermal insulation values.
  • Gas mixtures which have the compositions mentioned in claim 2 and in particular the compositions mentioned in claim 3 are used with particular advantage as the disk fillings.
  • the mixture composition can be of different sizes and designs of insulating glass units. adjust optimally, which, as described, achieves good insulation even at low frequencies. All commercially available insulating glass units can therefore be filled with the specified gas mixtures, whereby good values are achieved for the insulation values.
  • sealing materials are a prerequisite for the long-term effectiveness of sound and thermal insulation.
  • the spaces between the panes are advantageously sealed with butyl rubber, thiokol or with silicone rubber.
  • the adhesives mentioned may alternatively be used as sealing materials.
  • the use of these sealing materials has proven to be particularly advantageous in combination with the gas fillings according to the invention.
  • Butyl rubber is particularly suitable as an elastic connecting material in the spacer and silicone rubber for sealing against the external atmosphere.

Abstract

1. Heat-insulating and sound attenuating glass unit having glass panes which are spaced apart and gaps between the panes which are sealed against the atmosphere and which contains as a filling gas, a gas mixture which contains, as constituents, fluoro-hydrocarbons or fluoro-chloro-hydrocarbons, characterised in that the filling gas consists of one of the following gas mixtures : 1. C2 F4 Cl2 + CF3 Cl in a ratio of 0 to 20 percent by volume to 80 to 100 percent by volume ; 2. Neon + CF3 Cl in a ratio of 0 to 30 percent by volume to 70 to 100 percent by volume ; 3a. C4 F8 , one or more other aliphatic fluoro-chloro-hydrocarbons, and neon, in a ratio of 0 to 30 percent by volume to 40 to 60 percent by volume to 20 to 30 percent by volume ; 3b. C4 F8 + neon in the ratio of 20 to 30 percent by volume to 70 to 80 percent by volume.

Description

Die Erfindung betrifft eine Isolierglaseinheit mit auf Abstand gehaltenen Glasscheiben und gegen die Atmosphäre abgedichteten Scheibenzwischenräumen.The invention relates to an insulating glass unit with glass panes kept at a distance and between the panes sealed against the atmosphere.

Es ist bekannt, die Scheibenzwischenräume von geklebten oder gelöteten Isolierglaseinheiten mit trockener Luft zu füllen. Eine bessere Wärme- und (oder) Schalldämmung läßt sich mit Argon, Kohlendioxid, Helium, Dichlordifluormethan, Schwefelhexafluorid oder deren Mischungen erreichen.It is known to fill the inter-pane spaces of glued or soldered insulating glass units with dry air. Better heat and (or) sound insulation can be achieved with argon, carbon dioxide, helium, dichlorodifluoromethane, sulfur hexafluoride or mixtures thereof.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Isolierglaseinheit mit günstigen Schall- und Wärmedämmwerten zu entwickeln.The object of the invention is therefore to develop an insulating glass unit with favorable sound and thermal insulation values.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Scheibenzwischenräume eine oder mehrere der folgenden Gasmischungen enthalten:

  • 1.) C2F4C12 + CF3Cl
  • 2.) Neon + CF3Cl
  • 3.) C4F8 + ein anderer oder mehrere andere Fluor-Chlor-Kohlenwasserstoffe und/oder Neon.
According to the invention, this object is achieved in that the interdisc spaces contain one or more of the following gas mixtures:
  • 1.) C 2 F 4 C1 2 + CF 3 Cl
  • 2.) Neon + CF 3 Cl
  • 3.) C 4 F 8 + another or more other chlorofluorocarbons and / or neon.

Mit den genannten Gasen beziehungsweise deren Mischungen wird eine Verbesserung der Schalldämmwerte und der Wärmedämmwerte gegenüber den bisherigen Scheibenfüllungen erreicht. Das einzige Gas, mit welchem nahezu ähnliche Schalldämmwerte erzielt werden, ist SF6. Dieses weist jedoch, wie alle Reingase, Resonanzeinbrüche der Schalldämmung im unteren Frequenzbereich auf. Die erfindungsgemäßen Gasgemische hingegen führen bei sehr gutem Schall- und Wärmedämmverhalten auch im kritischen Frequenzbereich zu wesentlich verbessertem Dämmverhalten. Mit Variation der Gemischzusammensetzungen lassen sich im Gegensatz zu Reingasfüllungen Verschiebungen der Resonanzfrequenzen erreichen. Damit ist eine Anpassung der Scheibenfüllungen an unterschiedliche Scheibenkonstruktionen möglich. Eine Anpassung der Gasfüllung an die Scheibenkonstruktion ist notwendig, denn durch Konstruktionsmerkmale wie Scheibenabstand oder Masse wird die Resonanzfrequenz beeinflußt, bei der die Schalldämmung ein Mini mum erreicht. Insbesondere mit den erfindungsgemäßen Gasgemisch ist eine Anpassung an verschiedene Isolierglaseinheiten unter dem Gesichtspunkt guter Dämmeigenschaften möglich.With the gases mentioned or their mixtures, an improvement in the sound insulation values and the thermal insulation values compared to the previous window fillings is achieved. The only gas with which almost similar sound insulation values can be achieved is SF 6 . However, like all clean gases, this has resonance drops in sound insulation in the lower frequency range. In contrast, the gas mixtures according to the invention, with very good sound and heat insulation behavior, also lead to significantly improved insulation behavior even in the critical frequency range. In contrast to pure gas fillings, shifts in the resonance frequencies can be achieved by varying the mixture compositions. This makes it possible to adapt the pane fillings to different pane constructions. An adjustment of the gas filling to the pane construction is necessary, because design features such as pane spacing or mass influence the resonance frequency at which the sound insulation reaches a minimum. In particular with the gas mixture according to the invention, adaptation to different insulating glass units is possible from the point of view of good insulation properties.

Mit besonderem Vorteil werden als Scheibenfüllungen Gasmischungen verwendet, die die im Anspruch 2 und insbesondere die im Anspruch 3 genannten Zusammensetzungen haben. In den angegebenen Bereichen läßt sich die Gemischzusammensetzung an unterschiedliche Größen und Bauformen von Isolierglaseinheiten. optimal anpassen, wodurch, wie beschrieben, gute Dämmwirkung auch bei niedrigen Frequenzen erreicht wird. Mit den angegebenen Gasmischungen können daher alle handelsüblichen Isolierglaseinheiten gefüllt werden, wobei für die Dämmwerte jeweils gute Werte erreicht werden.Gas mixtures which have the compositions mentioned in claim 2 and in particular the compositions mentioned in claim 3 are used with particular advantage as the disk fillings. In the specified ranges, the mixture composition can be of different sizes and designs of insulating glass units. adjust optimally, which, as described, achieves good insulation even at low frequencies. All commercially available insulating glass units can therefore be filled with the specified gas mixtures, whereby good values are achieved for the insulation values.

Voraussetzung für die dauerhafte Wirksamkeit der Schall-und Wärmedämmung ist die Verwendung geeigneter Dichtmaterialien. Mit Vorteil werden die Scheibenzwischenräume mit Butylkautschuk, Thiokol oder mit Silikonkautschuk abgedichtet. Als Dichtmaterialien kommen aber auch abwechselnd mehrere der genannten Kleber in Frage. Die Verwendung dieser Dichtmaterialien erweist sich vor allem in der Kombination mit den erfindungsgemäßen Gasfüllungen als günstig. Insbesondere eignet sich Butylkautschuk als elastisches Verbindungsmaterial im Abstandshalter und Silikon kautschuk zum Abdichten gegen die äußere Atmosphäre.The use of suitable sealing materials is a prerequisite for the long-term effectiveness of sound and thermal insulation. The spaces between the panes are advantageously sealed with butyl rubber, thiokol or with silicone rubber. However, several of the adhesives mentioned may alternatively be used as sealing materials. The use of these sealing materials has proven to be particularly advantageous in combination with the gas fillings according to the invention. Butyl rubber is particularly suitable as an elastic connecting material in the spacer and silicone rubber for sealing against the external atmosphere.

Claims (4)

1. Isolierglaseinheit mit auf Abstand gehaltenen Glasscheiben und gegen die Atmosphäre abgedichteten Scheibenzwischenräumen, dadurch gekennzeichnet, daß die Scheibenzwischenräume eine oder mehrere der folgenden Gasmischungen enthalten: 1. C2F4Cl2+ CF3Cl 2. Neon + CF3Cl 3. C4F8 + ein anderer oder mehrere andere Fluor-Chlor-Kohlenwasserstoffe und/oder Neon. 1. Insulating glass unit with glass panes spaced apart and pane spaces sealed against the atmosphere, characterized in that the pane spaces contain one or more of the following gas mixtures: 1. C 2 F 4 Cl 2 + CF 3 Cl 2. Neon + CF 3 Cl 3. C 4 F 8 + another or more other chlorofluorocarbons and / or neon. Isolierglaseinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Gasmischungen folgende Mischungsverhältnisse aufweisen: 1. C2F4Cl2 + CF3Cl im Verhältnis von 0 bis 20 Vol-% zu 80 bis 100 Vol-%; 2. Neon + CF3Cl im Verhältnis von 0 bis 30 Vol-% zu 70 bis 100 Vol-%; 3a.C4F8 und ein anderer oder mehrere andere Fluor-ChlorKohlenwasserstoffe und Neon im Verhältnis von 0 bis 30 -Vol-% zu 40 bis 60 Vol-% zu 20 bis 3Q Vol-%; 3b.C4F8 + Neon im Verhältnis von 20 bis 30 Vol-% zu 70 bis 80 Vol-%. Insulating glass unit according to claim 1, characterized in that the gas mixtures have the following mixing ratios: 1. C 2 F 4 Cl 2 + CF 3 Cl in a ratio of 0 to 20% by volume to 80 to 100% by volume; 2. Neon + CF 3 Cl in a ratio of 0 to 30% by volume to 70 to 100% by volume; 3a.C 4 F 8 and another or more other chlorofluorocarbons and neon in a ratio of 0 to 30 vol% to 40 to 60 vol% to 20 to 3Q vol%; 3b.C 4 F 8 + neon in a ratio of 20 to 30 vol% to 70 to 80 vol%. 3. Isolierglaseinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Gasmischungen folgende Mischungsverhältnisse aufweisen: 1. C2F4Cl2 + CF3Cl im Verhältnis von 5 bis 20 Vol-% zu 80 bis 95 Vol-%; 2. Neon + CF3Cl im Verhältnis von 5 bis 30 Vol-% zu 70 bis 95 Vol-%; 3a.C4F8 und ein anderer oder mehrere andere Fluor-ChlorKohlenwasserstoffe und Neon im Verhältnis von 0 bis 30 Vol-%'zu 40 bis 60 Vol-% zu 20 bis 30 Vol-%; 3b. C4F8 + Neon im Verhältnis von 20 bis 30 Vol-% zu 70 bis SO Vol-%. 3. Insulating glass unit according to claim 1, characterized in that the gas mixtures have the following mixing ratios: 1. C 2 F 4 Cl 2 + CF 3 Cl in a ratio of 5 to 20% by volume to 80 to 95% by volume; 2. Neon + CF 3 Cl in a ratio of 5 to 30% by volume to 70 to 95% by volume; 3a.C 4 F 8 and another or more other chlorofluorocarbons and neon in a ratio of 0 to 30% by volume to 40 to 60% by volume to 20 to 30% by volume; 3b . C 4 F 8 + neon in a ratio of 20 to 30 vol% to 70 to SO vol%. 4. Isolierglaseinheit nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Scheibenzwischenräume mit Butylkautschuk, Thiokol, Silikonkautschuk oder Kombinationer dieser Dichtmittel abgedichtet sind.4. Insulating glass unit according to one of claims 1 to 3, characterized in that the interspaces between the panes are sealed with butyl rubber, thiokol, silicone rubber or combinations of these sealants.
EP78100052A 1977-06-08 1978-06-01 Thermal and sound isolating glass unit Expired EP0000031B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2726028A DE2726028C2 (en) 1977-06-08 1977-06-08 Heat-insulating and sound-absorbing glass unit
DE2726028 1977-06-08

Publications (2)

Publication Number Publication Date
EP0000031A1 true EP0000031A1 (en) 1978-12-20
EP0000031B1 EP0000031B1 (en) 1981-01-07

Family

ID=6011106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100052A Expired EP0000031B1 (en) 1977-06-08 1978-06-01 Thermal and sound isolating glass unit

Country Status (9)

Country Link
EP (1) EP0000031B1 (en)
AT (1) AT363630B (en)
AU (1) AU516404B2 (en)
BR (1) BR7803652A (en)
DE (1) DE2726028C2 (en)
DK (1) DK253078A (en)
IT (1) IT1096626B (en)
NO (1) NO144846C (en)
ZA (1) ZA783264B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416101A (en) * 1980-04-14 1983-11-22 Bfg Glassgroup Insulating glass window structure
WO1987006297A1 (en) * 1986-04-11 1987-10-22 Barrier Hb Method for the manufacture of insulating window units
US4800693A (en) * 1983-01-04 1989-01-31 Barrier Hb Heat insulating window unit and insulating blocking component therefor
WO1989011020A1 (en) * 1988-05-02 1989-11-16 Enhanced Insulations, Inc. Thermally insulating window
US5027574A (en) * 1988-05-02 1991-07-02 Phillip Bradley L Thermally insulating structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001409A1 (en) * 1990-01-19 1990-07-05 Flittner Emanuel Wall for acoustic and thermal insulation - comprises three steel plates bonded to rubber cubes, with vacuum between plates

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE628413A (en) *
FR2284745A1 (en) * 1974-09-16 1976-04-09 Bfg Glassgroup TRANSPARENT PANEL WITH IMPROVED ACOUSTIC PROPERTIES
DE2461532A1 (en) * 1974-12-27 1976-07-08 Bfg Glassgroup Sound-insulating glass panes - contg inter chamber filled with gas (mixt) having sound velocity below that of air
DE2518205A1 (en) * 1975-04-24 1976-11-04 Flachglasveredelung Conzelmann Thermal insulation glazing with insulation frame - has composite spacer between panels for sound and moisture absorption

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540518A1 (en) * 1974-09-16 1976-03-25 Bfg Glassgroup TRANSPARENT BOARD AND METHOD OF MANUFACTURING IT

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE628413A (en) *
FR2284745A1 (en) * 1974-09-16 1976-04-09 Bfg Glassgroup TRANSPARENT PANEL WITH IMPROVED ACOUSTIC PROPERTIES
DE2461532A1 (en) * 1974-12-27 1976-07-08 Bfg Glassgroup Sound-insulating glass panes - contg inter chamber filled with gas (mixt) having sound velocity below that of air
DE2518205A1 (en) * 1975-04-24 1976-11-04 Flachglasveredelung Conzelmann Thermal insulation glazing with insulation frame - has composite spacer between panels for sound and moisture absorption

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416101A (en) * 1980-04-14 1983-11-22 Bfg Glassgroup Insulating glass window structure
US4800693A (en) * 1983-01-04 1989-01-31 Barrier Hb Heat insulating window unit and insulating blocking component therefor
WO1987006297A1 (en) * 1986-04-11 1987-10-22 Barrier Hb Method for the manufacture of insulating window units
WO1989011020A1 (en) * 1988-05-02 1989-11-16 Enhanced Insulations, Inc. Thermally insulating window
US4928448A (en) * 1988-05-02 1990-05-29 Enhanced Insulations, Inc. Thermally insulating window and method of forming
US5027574A (en) * 1988-05-02 1991-07-02 Phillip Bradley L Thermally insulating structure

Also Published As

Publication number Publication date
ATA606677A (en) 1981-01-15
NO144846B (en) 1981-08-17
EP0000031B1 (en) 1981-01-07
IT7824217A0 (en) 1978-06-05
AT363630B (en) 1981-08-25
AU516404B2 (en) 1981-06-04
IT1096626B (en) 1985-08-26
DK253078A (en) 1978-12-09
NO781994L (en) 1978-12-11
ZA783264B (en) 1979-06-27
BR7803652A (en) 1979-03-13
DE2726028A1 (en) 1978-12-21
AU3695678A (en) 1979-12-13
NO144846C (en) 1982-12-07
DE2726028C2 (en) 1986-03-06

Similar Documents

Publication Publication Date Title
DE3505822C2 (en)
EP0000031A1 (en) Thermal and sound isolating glass unit
EP0264097A2 (en) Selectively permeable zeolite adsorbents and sealants made therefrom
EP0028281A1 (en) Synthetic insulating member under mechanical stress with glass fibre reinforcement free of boron and boron compounds for high tension switching arrangements containing sulphur-hexafluorid gas
EP0062782A1 (en) Gas-discharge overvoltage arrester
DE2461532A1 (en) Sound-insulating glass panes - contg inter chamber filled with gas (mixt) having sound velocity below that of air
DE2726027A1 (en) Double glazing using gas filling to provide insulation - where gas can expand or contract in elastic tube to prevent leakage
AU637436B2 (en) Chemically-curing two-part polyurethane composition
EP0433069A2 (en) Chemically-curing two-part polyurethane composition
DE2350602A1 (en) Double glass windows for heat and sound insulation - surrounded by plastic foil to form pressure balancing zone
DE4200458C2 (en) Use of a fire retardant mass for the production of flexible fire protection tarpaulins
DE1644759C3 (en) Covering compound for electrical measuring instruments
DE2540518C2 (en)
DE4410784C2 (en) Insulating glass units with high sound and heat insulation as well as gas mixtures for such units
AT364141B (en) INSULATED GLASS PANEL
DE3444157A1 (en) Vapour-deposition material for achieving extremely high vapour-deposition rates
DE1918760B2 (en) ACOUSTIC DELAY MEDIUM FOR AN ACOUSTIC DELAY MADE OF GLASS
DE2830584A1 (en) Adsorbent for use in double glazed windows - includes zeolite which adsorbs water, but not nitrogen or oxygen
CH453645A (en) Pane, in particular insulating glass pane
DD236137A1 (en) INSTALLATION SEAL FOR WINDOWS AND DOORS
CH653185A5 (en) ENCLOSED ELECTRICAL SYSTEM.
DE2746012A1 (en) MULTI-PANEL INSULATED GLASS UNIT
DE1285610B (en) Backup, especially high-performance backup
DE2226014A1 (en) HERMETICALLY SEALED CABLE END CLOSURE FOR PLASTIC CABLES FOR INDOOR AND OUTDOOR AIR
DE7117013U (en) FRONT WINDOW WITH U-SHAPED GLASS REBATE

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH FR GB LU NL SE

17P Request for examination filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH FR GB LU NL SE

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: 19810630

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

Ref country code: LU

Payment date: 19820628

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19820630

Year of fee payment: 5

Ref country code: NL

Payment date: 19820630

Year of fee payment: 5

Ref country code: CH

Payment date: 19820630

Year of fee payment: 5

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

Ref country code: SE

Effective date: 19830602

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

Ref country code: CH

Effective date: 19830630

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

Ref country code: NL

Effective date: 19840101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Payment date: 19840321

Year of fee payment: 7

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

Ref country code: BE

Payment date: 19840930

Year of fee payment: 7

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

Ref country code: BE

Effective date: 19860630

BERE Be: lapsed

Owner name: LINDE A.G.

Effective date: 19860630

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

Ref country code: FR

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

Effective date: 19870227

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Effective date: 19881117

EUG Se: european patent has lapsed

Ref document number: 78100052.6

Effective date: 19850610

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