EP0037993B1 - Unité de verre isolant avec une feuille intérieure, une feuille extérieure et un cadre d'écartement - Google Patents

Unité de verre isolant avec une feuille intérieure, une feuille extérieure et un cadre d'écartement Download PDF

Info

Publication number
EP0037993B1
EP0037993B1 EP81102551A EP81102551A EP0037993B1 EP 0037993 B1 EP0037993 B1 EP 0037993B1 EP 81102551 A EP81102551 A EP 81102551A EP 81102551 A EP81102551 A EP 81102551A EP 0037993 B1 EP0037993 B1 EP 0037993B1
Authority
EP
European Patent Office
Prior art keywords
pane
spring
enclosure assembly
insulating glass
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.)
Expired
Application number
EP81102551A
Other languages
German (de)
English (en)
Other versions
EP0037993A1 (fr
Inventor
Paul Dr. Derner
Dietrich Dr. Mertin
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.)
BFG Glassgroup GIE
Original Assignee
BFG Glassgroup GIE
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 BFG Glassgroup GIE filed Critical BFG Glassgroup GIE
Priority to AT81102551T priority Critical patent/ATE11803T1/de
Publication of EP0037993A1 publication Critical patent/EP0037993A1/fr
Application granted granted Critical
Publication of EP0037993B1 publication Critical patent/EP0037993B1/fr
Expired legal-status Critical Current

Links

Images

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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66342—Section members positioned at the edges of the glazing unit characterised by their sealed connection to the panes
    • 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
    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B2003/6639—Section members positioned at the edges of the glazing unit sinuous

Definitions

  • the path corresponds to movements of the panes and / or the pane edge against one another in the direction perpendicular to the pane surface.
  • the force is the resistance that the moving disk or disks experience during this movement towards and away from one another through the connection unit.
  • the movement takes place under the influence of pressure changes, e.g. B. by varying the atmospheric conditions or a sound field.
  • Both the inner pane and the outer pane or one of the two can also be designed as so-called laminated glass panes or insulating glass panes, which in turn are insulating glass units.
  • the disks are provided all around in the manner described with a resilient connection unit. Both panes of the insulating glass unit can also be arranged accordingly. The singular form is used only for reasons of simplicity.
  • the resilient connection unit consists of rubber profile strips, which are arranged on both sides of a rigid metal profile.
  • a spring characteristic curve can be assigned to such a unit, and the working point of the system consisting of the connection unit and the assigned plate moves on the spring characteristic line when pressure changes act on the plate.
  • comparatively large opposing forces either occur after a small displacement at the edge of the pane, or larger displacements are not opposed to sufficient resistance to ensure the cohesion of the insulating glass unit.
  • the spring characteristic is too steep in the area of the working point to allow improvements of more than approx. 2 dB, which are due to the damping rather than the elastic properties of the edge construction.
  • the situation is accordingly in a similar embodiment (DE-A-2531 243), in which the entire spacer frame is designed as a strip made of an elastomeric material, such as rubber, and has grooves for receiving the glass panes.
  • the invention has for its object to improve a generic insulating glass unit in terms of aging resistance and / or sound insulation by changing and by functional improvement of the connection unit.
  • the invention teaches that the resilient connection unit has such a spring characteristic that when the disc is deflected by up to about 5%, based on the disc spacing, the working point moves on a substantially horizontal spring characteristic section, so that the spring force then begins to rise steeply, and that at about 12% deflection, further deformation of the connection unit is hardly possible.
  • the invention is based on the knowledge that it is important for an increase in sound insulation in generic insulating glass units to oppose small movements of the panes against each other as little resistance as possible and large against a large resistance.
  • the inner pane and outer pane of the insulating glass unit are coupled to one another at the edge via a resilient connection unit with a non-linear spring characteristic during the movement described.
  • the resilient connection unit opposes small deflections to a negligible resistance in comparison to the bending stiffness of the disks.
  • the spring force increases steeply with larger deflections. In practice, this increase is initially started slowly with a deflection of about 5%, based on the distance between the panes. At the latest with a 12% deflection within the scope of the described movement of the two panes against one another, forces such as in normal insulating glass constructions should be necessary for a deformation.
  • Embodiments which are characterized in that the force exerted by the edge construction on the pane at 5% displacement, based on the pane spacing, make up less than 15%, preferably less than 5% of the force which occurs at 10% displacement . Particularly high sound insulation is achieved if the marginal force should be less than 1% of the force that occurs at 10% displacement with a 5% total displacement.
  • Suitable spring elements are known in various embodiments. For example, you can use pre-stressed Work leaf springs or disc springs or also with soft elastic rubber-elastic fabrics. The use of open-pore, soft-elastic material is particularly recommended, since the shape of the spring characteristic curve, which is essential for the invention, can be easily adjusted with such a material.
  • connection unit consists of two leaf spring strips arched in cross section, with their convex side on the between the spring strips arranged disc are supported, and that the leaf spring strips on the other hand rest on the receiving profile or on the spacer frame.
  • connection unit consists of two flexible spring profiles that are supported on the disc arranged between the spring profiles, and that on the other hand on the mounting profile or on the spacer frame supported spring profiles together with the washer have a low-friction block, which allows the described movement of the washers against one another as far as possible without disruptive frictional influences.
  • connection unit consisting of two flexible spring profiles
  • these can also be arranged in a mounting profile with the interposition of a connecting web guided to the spacer frame, the mounting profile being applied on the one hand to the assigned washer and on the other hand with the connecting web on the spacer frame.
  • connection unit in an insulating glass unit according to the invention, the described modification and functional improvement of the connection unit alone considerably improve the aging resistance compared to the prior art, and secondly large pane spacings, as are desirable for sound insulation, without danger of the broken window can be realized, and in addition a further increase in sound insulation is achieved, which can be 5 dB.
  • pane spacing which should be greater the smaller the total glass thickness, and filling the interspaces between panes with gases or gas mixtures in which the speed of sound is at least 10% less than in air or at least 20% larger than in air.
  • the pane spacing should be 50 mm for a total glass thickness of 10 mm, 25 mm for 15 mm and> 10 mm for 20 mm.
  • Suitable filling gases are e.g. B. sulfur hexafluoride and its mixtures with air for low speeds of sound and helium for high speeds of sound.
  • the spring characteristic curve FK has an essentially horizontal spring characteristic section FKA in the region of its center, and the working point A is set up on this.
  • connection unit consists of two leaf spring strips 5, 6 which are curved in cross section and which are supported with their convex side on the disk 2 arranged between the leaf spring strips 5, 6.
  • the leaf spring strips 5, 6, on the other hand, rest on the receiving profile 4 or on the spacer frame 3.
  • FIG. 5 is readily understandable with the explanation of FIG. 2. - It can be seen that the so-called receiving profile 4 can also be formed from a window frame 11 and a glass retaining strip 12. The same applies analogously to the other embodiments.
  • the characteristic curves of the individual springs according to a) the example according to FIG. 2 and b) according to FIG. 3 are recorded in FIG. 6.
  • the forces are vectorially plotted against the path.
  • the vector is defined as positive if it points away from the disc 1 and as negative if it runs from the disc 2 in the direction of the disc 1.
  • the path s is positive if the disc 2 shifts to disc 1. It can be seen that in case a) considerable forces act on the individual spring at the working point, but that these cancel each other out. In case b) the preload is low at the working point. It is within the scope of the invention to dispense with them entirely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Claims (5)

1. Unité de vitrage isolant comportant une vitre intérieure, une vitre extérieure, un cadre-entretoise périphérique (3) et un gaz de remplissage disposé dans l'espace intercalaire, au moins l'une des vitres (1, 2) étant maintenue sur au moins un bord, de manière à pouvoir être déplacée selon un mode vibratoire sous l'action d'une charge acoustique, à l'aide d'un dispositif élastique de raccordement qui oppose une faible résistance à un faible déplacement des vitres l'une par rapport à l'autre, mais une résistance nettement plus importante à un déplacement important des vitres l'une par rapport à l'autre, caractérisée en ce que le dispositif élastique de raccordement possède une caractéristique d'élasticité telle que, dans le cas d'un fléchissement de la vitre allant jusqu'à environ 5%, rapporté à la distance entre les vitres, le point de travail (A) se déplace sur un élément essentiellement horizontal de la courbe caractéristique d'élasticité (FKA), qu'ensuite la force d'élasticité commence à augmenter fortement et que dans le cas d'un fléchissement d'environ 12%, une déformation supplémentaire du dispositif de raccordement est encore à peine possible.
2. Unité de vitrage isolant selon la revendication 1, dans la forme de réalisation dans laquelle le cadre-entretoise (3) est maintenu ainsi que le bord de la vitre, dans ou sur un profilé de logement (4), caractérisée en ce que le dispositif de raccordement est constitué par deux barrettes (5, 6) en forme de ressorts à lames, présentant une section transversale cintrée et qui prennent appui par leurs côtés convexes sur la vitre (2) disposée entre lesdites barrettes à ressort (5, 6), et s'appliquent par ailleurs contre le profilé de logement (4) ou sur le cadre-entretoise (3).
3. Unité de vitrage isolant selon la revendication 1, dans la forme de réalisation comportant un dispositif de raccordement souple et un profilé de logement (4) prévu pour le dispositif de raccordement ainsi que la vitre, caractérisée en ce que le dispositif de raccordement est constitué par deux profilés à ressort souples (5, 6) qui prennent appui contre la vitre (2) disposée entre eux, et que les profilés à ressort (5, 6), qui prennent appui par ailleurs sur le profilé de logement (4) ou sur le cadre-entretoise (3), comportent ainsi que la vitre (2), un organe de soutien (7) présentant un faible frottement.
4. Unité de vitrage isolant selon la revendication 1, dans la forme de réalisation comportant un dispositif de raccordement souple, caractérisée en ce que le dispositif de raccordement est constitué par deux profilés à ressort souples (5, 6) qui sont disposés dans un profilé de logement (4) moyennant l'interposition d'une barrette de raccordement (8) guidée par rapport au cadre-entretoise, et que le profilé de logement (4) est raccordé d'une part à la vitre associée (1) et d'autre part, par la barrette de raccordement (8), au cadre-entretoise (3).
5. Unité de vitrage isolant selon l'une des revendications 1 à 4, caractérisée en ce que le dispositif de raccordement est muni en supplément de dispositifs d'étanchéité, et ce sous la forme de garnitures d'étanchéité molles (9) disposées entre les barrettes en forme de ressorts à lames (5, 6) et la vitre (2) ou sous la forme de barrettes profilées d'étanchéité (10) qui s'étendent au-dessus des profilés souples en forme de ressorts (5,6).
EP81102551A 1980-04-14 1981-04-04 Unité de verre isolant avec une feuille intérieure, une feuille extérieure et un cadre d'écartement Expired EP0037993B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102551T ATE11803T1 (de) 1980-04-14 1981-04-04 Isolierglaseinheit mit innenscheibe, aussenscheibe und abstandsrahmen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014207A DE3014207C2 (de) 1980-04-14 1980-04-14 Isolierglaseinheit mit Innenscheibe, Außenscheibe und Gasfüllung im Zwischenraum
DE3014207 1980-04-14

Publications (2)

Publication Number Publication Date
EP0037993A1 EP0037993A1 (fr) 1981-10-21
EP0037993B1 true EP0037993B1 (fr) 1985-02-13

Family

ID=6099913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102551A Expired EP0037993B1 (fr) 1980-04-14 1981-04-04 Unité de verre isolant avec une feuille intérieure, une feuille extérieure et un cadre d'écartement

Country Status (4)

Country Link
US (2) US4416101A (fr)
EP (1) EP0037993B1 (fr)
AT (1) ATE11803T1 (fr)
DE (1) DE3014207C2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5113628A (en) * 1990-09-20 1992-05-19 Anthony's Manufacturing Company, Inc. Railless refrigerator display door
USRE35149E (en) * 1990-09-20 1996-01-30 Anthony's Manufacturing Company, Inc. Railless refrigerator display door
US5097642A (en) * 1990-09-20 1992-03-24 Anthony's Manufacturing Company, Inc. Glass refrigerator door structure
US5792523A (en) * 1996-03-14 1998-08-11 Aga Aktiebolag Krypton gas mixture for insulated windows
US6055783A (en) 1997-09-15 2000-05-02 Andersen Corporation Unitary insulated glass unit and method of manufacture
US6886297B1 (en) * 1998-07-23 2005-05-03 Ppg Industries Ohio, Inc. Insulating unitless window sash
US6333085B1 (en) * 1999-11-08 2001-12-25 Arpal Aluminum, Ltd. Resistant window systems
US6509071B1 (en) 2000-02-09 2003-01-21 Arpal Aluminum Ltd. Reinforced window systems
FR2846029B1 (fr) * 2002-10-17 2005-07-01 Saint Gobain Vitrage isolant
CN1867749B (zh) * 2003-06-23 2011-10-05 Ppg工业俄亥俄公司 整体式窗框及整体式窗框的制造方法
US7997037B2 (en) * 2003-06-23 2011-08-16 Ppg Industries Ohio, Inc. Integrated window sash with groove for desiccant material
DE102005045844B3 (de) 2005-09-26 2007-02-01 Airbus Deutschland Gmbh Schalldämmelement und Verfahren zur Herstellung eines Schalldämmelements
US7721844B1 (en) * 2006-10-13 2010-05-25 Damping Technologies, Inc. Vibration damping apparatus for windows using viscoelastic damping materials
WO2014073988A1 (fr) * 2012-11-12 2014-05-15 Carter Philip John Système d'isolation de fenêtre supplémentaire
BE1021707B1 (fr) * 2013-01-11 2016-01-11 Agc Glass Europe Panneau de vitrage avec joint d'etancheite peripherique et procede de fabrication correspondant.
CA2846049A1 (fr) * 2013-03-15 2014-09-15 Andersen Corporation Unites de vitrage a unites de commande a base de cartouche
US10900274B2 (en) * 2016-09-02 2021-01-26 Pella Corporation Anti-rattle elements for internal divider of glass assembly

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7139560U (de) * 1900-01-01 Aktiebolaget Emmaboda Glasverk Fensterscheibe
DE7738191U1 (fr) * 1900-01-01 Wilh. Frank Gmbh, 7022 Leinfelden- Echterdingen
CH319150A (de) * 1953-05-05 1957-02-15 Bethge Walther Aus mindestens zwei in Abstand voneinander gehaltenen Scheiben bestehende Mehrfachscheibe, besonders für Schall- und Wärmeisolationszwecke
DE1082386B (de) * 1957-08-22 1960-05-25 Thermo Chemical Dev Company Mehrscheibenisolierglas
US2934801A (en) * 1958-06-16 1960-05-03 Blaszkowski Henry Insulating window
FR1237594A (fr) * 1958-10-16 1960-07-29 Dispositif de vitrage multiple
FR1297594A (fr) * 1961-08-09 1962-06-29 Jeu à éléments signalisateurs électro-optiques, et à conmmande électromagnétique
DE1988348U (de) * 1968-02-19 1968-06-27 Stempel A G D Schalldaemmende platte.
DE6750163U (de) * 1968-09-07 1969-01-02 Gemag Geraete Und Maschb Ag & Glashalteleiste zur lagerung von zwei glasscheiben
US3824753A (en) * 1970-05-18 1974-07-23 Anderson V Mfg Co Window structure
CA953159A (en) * 1971-12-14 1974-08-20 Superseal Corporation Multiple glass panel unit
US3971178A (en) * 1974-03-25 1976-07-27 Ppg Industries, Inc. Add-on multiple glazing with hygroscopic material
DE2445332B2 (de) * 1974-09-23 1976-12-09 GGN Glashandels-Gesellschaft Nördlingen mbH & Co KG, 8860 Nördlingen Schalldaemmendes mehrscheibenisolierglas
DE7443197U (de) * 1974-12-27 1975-09-04 Bfg Glassgroup Isolierglasscheibe mit hoher Schalldämmung
DE2531243A1 (de) * 1975-07-12 1976-10-14 Alex Walser Fassung fuer mehrfachverglasung von fenster oder dergleichen
DE2726028C2 (de) * 1977-06-08 1986-03-06 Linde Ag, 6200 Wiesbaden Wärmeisolierende und schalldämmende Glaseinheit
FR2396879A1 (fr) * 1977-07-05 1979-02-02 Air Liquide Cryopompe
US4208849A (en) * 1978-02-13 1980-06-24 Lamb James V Multiple glazed window and method

Also Published As

Publication number Publication date
ATE11803T1 (de) 1985-02-15
US4416101A (en) 1983-11-22
US4485603A (en) 1984-12-04
DE3014207A1 (de) 1981-10-22
EP0037993A1 (fr) 1981-10-21
DE3014207C2 (de) 1983-12-29

Similar Documents

Publication Publication Date Title
EP0037993B1 (fr) Unité de verre isolant avec une feuille intérieure, une feuille extérieure et un cadre d'écartement
EP0078530B1 (fr) Vitrage multiple
DE3136320A1 (de) Verfahren und vorrichtung zur unterdrueckung des aussenlast-tragfluegel-flatterns von flugzeugen
DE10351243B4 (de) Adaptiver Schwingungstilger
DE3500114C2 (fr)
DE202016005232U1 (de) Vorrichtung zur Kompensation einer Seillose innerhalb eines Seilzug-Fensterhebers, dessen Seilzug wenigstens einen Abschnitt mit einem Bowden aufweist
DE2526438A1 (de) Isolierglasscheibe
DE3504871C2 (de) Gerät bestehend aus Trägereinheit und Schlagaggregat
DE3014246A1 (de) Isolierglaseinheit
DE2421010A1 (de) Elastische dichtung fuer fenster, tueren u. dgl.
DE4239735A1 (de) Abstützteil für Glasscheiben von Fenstern, Türen o. dgl.
WO2006024187A1 (fr) Element de construction coupe-feu pour battant de porte ou de fenetre
DE156479C (fr)
DE2356544A1 (de) Abstandshalter fuer schalldaemmendes mehrscheibenisolierglas
DE1162137B (de) Vorgefertigtes lastaufnehmendes Bauelement fuer Bauwerke, Maschinen, Geraete od. dgl.
DE2903464C2 (fr)
DE2901988A1 (de) Unbewehrtes elastomer-lager
DE3231600A1 (de) Aluminium-fensterbank
DE3305850A1 (de) Schwingungsisolator mit stabilisierendem daempfer
DE2428919A1 (de) Schiebefenster mit einer seitlich verschiebbaren fensterscheibe
DE3017048A1 (de) Fugenueberbrueckungsvorrichtung fuer dehnfugen in bruecken o.dgl.
DE102022105435A1 (de) Kreuzverbinder
AT264581B (de) Scheren- oder Halbscherenstromabnehmer mit gegenüber Schere oder Halbschere abgefederten Schleifleisten
DE1255501B (de) Verschlussventil fuer Luftleitungen von Schutzbauten
DE1273783B (de) Metallrahmenprofil und Glashalteleiste

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

Designated state(s): AT BE CH FR GB IT NL

17P Request for examination filed

Effective date: 19820306

ITF It: translation for a ep patent filed

Owner name: ING. A. GIAMBROCONO & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 11803

Country of ref document: AT

Date of ref document: 19850215

Kind code of ref document: T

ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900227

Year of fee payment: 10

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

Ref country code: FR

Payment date: 19910208

Year of fee payment: 11

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

Ref country code: CH

Payment date: 19910211

Year of fee payment: 11

Ref country code: BE

Payment date: 19910211

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19910215

Year of fee payment: 11

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

Ref country code: AT

Effective date: 19910404

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910430

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: GB

Effective date: 19920404

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

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

Ref country code: BE

Effective date: 19920430

BERE Be: lapsed

Owner name: BFG GLASSGROUP

Effective date: 19920430

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

Ref country code: NL

Effective date: 19921101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921230

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST