EP0282379B1 - Procédé de fabrication de feutres humides et machine de densification des nappes - Google Patents

Procédé de fabrication de feutres humides et machine de densification des nappes Download PDF

Info

Publication number
EP0282379B1
EP0282379B1 EP88400342A EP88400342A EP0282379B1 EP 0282379 B1 EP0282379 B1 EP 0282379B1 EP 88400342 A EP88400342 A EP 88400342A EP 88400342 A EP88400342 A EP 88400342A EP 0282379 B1 EP0282379 B1 EP 0282379B1
Authority
EP
European Patent Office
Prior art keywords
needle
machine
fleece
canvas
roller
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
EP88400342A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0282379A1 (fr
Inventor
Marcel Dufour
Jacques Piat
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.)
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9348491&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0282379(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT88400342T priority Critical patent/ATE71163T1/de
Publication of EP0282379A1 publication Critical patent/EP0282379A1/fr
Application granted granted Critical
Publication of EP0282379B1 publication Critical patent/EP0282379B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00Needling machines
    • D04H18/02Needling machines with needles
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00Other non-woven fabrics
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00Other details of machines for making continuous webs of paper
    • D21F7/08Felts
    • D21F7/083Multi-layer felts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/3724Needled
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/3724Needled
    • Y10T442/3732Including an additional nonwoven fabric
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/378Coated, impregnated, or autogenously bonded
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3707Woven fabric including a nonwoven fabric layer other than paper
    • Y10T442/378Coated, impregnated, or autogenously bonded
    • Y10T442/3789Plural nonwoven fabric layers

Definitions

  • the present invention relates to a process for the manufacture of wet stationery felts in which a web consisting of one or more fiber veils is fixed on at least one of the sides of a canvas.
  • successive layers of fiber veils emerging from a card are deposited directly on the base stretched over the needling machine.
  • the canvas is in continuous motion and passes under the head of needles so that the tablecloth deposited is needled in the canvas immediately.
  • a sheet is prefabricated which will then be deposited on the base and needled on it.
  • the veil of fibers emerging from the card is deposited on a moving carpet which brings the sheet formed of successive layers under the needle head of a pre-needling machine which gives a cohesion making it possible to form a roll of sheets which will be then unrolled on the canvas in the needling machine to form the felt.
  • the method according to the invention making it possible to avoid the use of a deep needling is characterized in that said webs obtained by carding the fibers and possibly pre-needled by a passage through a pre-needling machine having a low needle density are densified by at least three passages in a needling machine with a high density of needles, at least one of the passages ensuring needling in the opposite direction to the others, said ply thus formed being then fixed to the canvas.
  • the sheets thus densified have a very high resistance in the direction of the length and the width.
  • the invention also relates to a machine for densifying the plies, characterized in that it comprises a needling machine with a head with a high density of needles, means for receiving the needled ply at the outlet of the needling machine, comprising a removable roller driven in rotation on which is wound the web leaving the needling machine, means for feeding the needling machine comprising a removable roller identical to the roller disposed at the outlet on which the already needled web can be wound and means in translation to bring this sheet under the head of the needling machine, said output roller can be driven in both directions of rotation.
  • Figure 1 shows a tablecloth densification machine which comprises a needling machine 1, provided with a head 2 of high density needles. This 40 cm wide head will have approximately 3,000 needles per meter of length. Note that in the low density pre-needling machines there are only 1000 needles per meter in length for a head 40 cm wide.
  • the head 2 is arranged above a matrix 3.
  • a mat 4 is used to bring the sheet 5 between head 2 and matrix 3.
  • a roller 6 is arranged driven by motor rollers 7.
  • the needled web 5 is wound around the roller 6.
  • rollers 6 and 8 are removable and identical and the rollers 7 can change the direction of rotation.
  • rollers 9 are also provided at the entrance above the carpet.
  • a pre-needled ply 5 is placed around the roller 8.
  • This ply 5 is unwound between the head 2 and the matrix 3 of the needling machine which also needles, for example the location of the ply.
  • This ply 5 is wound around the roller 6.
  • the roller 6 is dismantled and put in place of the roller 8, the roller 8 which is empty takes the place of the roller 6.
  • a new passage of the tablecloth is made through the needling machine 1 needling this time the reverse side of the tablecloth.
  • the output roller is rotated in the opposite direction (see FIG. 2) so that the third and last pass will allow needling of the reverse side of the web like the second pass.
  • this ply or plies are fixed to a canvas (10) by needling or possibly gluing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Laminated Bodies (AREA)
EP88400342A 1987-03-02 1988-02-16 Procédé de fabrication de feutres humides et machine de densification des nappes Expired - Lifetime EP0282379B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400342T ATE71163T1 (de) 1987-03-02 1988-02-16 Verfahren zur herstellung von nassen filzen und vorrichtung zum verdichten von faservliesen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702777A FR2611752B1 (fr) 1987-03-02 1987-03-02 Procede de fabrication de feutres humides et machine de densification des nappes
FR8702777 1987-03-02

Publications (2)

Publication Number Publication Date
EP0282379A1 EP0282379A1 (fr) 1988-09-14
EP0282379B1 true EP0282379B1 (fr) 1992-01-02

Family

ID=9348491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400342A Expired - Lifetime EP0282379B1 (fr) 1987-03-02 1988-02-16 Procédé de fabrication de feutres humides et machine de densification des nappes

Country Status (12)

Country Link
US (1) US4842929A (fi)
EP (1) EP0282379B1 (fi)
KR (1) KR880011393A (fi)
AT (1) ATE71163T1 (fi)
CA (1) CA1311115C (fi)
DE (1) DE3867261D1 (fi)
ES (1) ES2028308T3 (fi)
FI (1) FI880904A (fi)
FR (1) FR2611752B1 (fi)
GR (1) GR3003561T3 (fi)
NO (1) NO168374C (fi)
ZA (1) ZA881475B (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892780A (en) * 1987-07-16 1990-01-09 Cochran William H Fiber reinforcement for resin composites
US5657797A (en) * 1996-02-02 1997-08-19 Asten, Inc. Press felt resistant to nip rejection
US5791028A (en) * 1997-09-03 1998-08-11 Valmet Inc. Reciprocating hydroenhancement system
DE10011231A1 (de) * 2000-03-08 2001-09-13 Dilo Kg Maschf Oskar Verfahren und Vorrichtung zum Strukturieren einer Faservliesbahn
US7267745B2 (en) * 2004-09-03 2007-09-11 Voith Fabrics, Inc. Papermakers felt having a point-bonded web layer formed of coarse fibers
US20080190510A1 (en) * 2007-02-09 2008-08-14 Ralf Burbaum High density press fabric
CN103255588B (zh) * 2013-05-13 2016-08-10 新疆阿勒泰工业用呢有限责任公司 预缩机呢毯及其制作工艺
CN103243486A (zh) * 2013-05-15 2013-08-14 苏州新协力特种工业模板有限公司 一种无纺布针刺机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1742338A (en) * 1927-09-08 1930-01-07 American Hair & Felt Company Method of making carpet cushions
US3192598A (en) * 1961-01-03 1965-07-06 Novo Ind Corp Method of making a filter element
DE1225876B (de) * 1961-11-09 1966-09-29 Freudenberg Carl Fa Vorrichtung zum Nadeln loser Faservliese
GB992895A (fi) * 1963-01-11 1900-01-01
FR1392540A (fr) * 1963-01-11 1965-03-19 Huyck Corp Feutre pour machine à fabriquer le papier, procédé et appareil pour la fabrication de ce feutre
AT256491B (de) * 1965-01-27 1967-08-25 Fehrer Maschf Dr Ernst Vorrichtung zum Nadeln von Haar- bzw. Faservliesen od. dgl.
US4342802A (en) * 1981-01-02 1982-08-03 Ozite Corporation Floor covering of needled woven fabric and nonwoven batt
AT375101B (de) * 1982-12-10 1984-07-10 Fehrer Textilmasch Vorrichtung zum herstellen von endlosen, genadelten papiermaschinenfilzen
FI89189C (fi) * 1986-02-22 1994-07-12 Hoechst Ag Laminat foer anvaendning som stoedskikt foer taeck och isoleringsmaterial foer tak
US4764417A (en) * 1987-06-08 1988-08-16 Appleton Mills Pin seamed papermakers felt having a reinforced batt flap

Also Published As

Publication number Publication date
DE3867261D1 (de) 1992-02-13
ES2028308T3 (es) 1992-07-01
NO880884D0 (no) 1988-02-29
ZA881475B (en) 1988-08-23
GR3003561T3 (fi) 1993-03-16
FR2611752A1 (fr) 1988-09-09
CA1311115C (en) 1992-12-08
KR880011393A (ko) 1988-10-28
ATE71163T1 (de) 1992-01-15
FI880904A (fi) 1988-09-03
US4842929A (en) 1989-06-27
FR2611752B1 (fr) 1989-05-05
EP0282379A1 (fr) 1988-09-14
FI880904A0 (fi) 1988-02-26
NO168374B (no) 1991-11-04
NO880884L (no) 1988-09-05
NO168374C (no) 1992-02-12

Similar Documents

Publication Publication Date Title
EP0972102B1 (fr) Procédé pour la réalisation de nappes fibreuses multiaxiales
EP0160609B1 (fr) Matériau à base d'une nappe textile non tissée utilisable comme armature de renforcement de rêvetements d'étanchéite
EP1246958B1 (fr) Procede pour la realisation d'un materiau non tisse et materiau ainsi obtenu
CA2003968C (fr) Support a base de nappe nontissee en textile chimique et son procede de fabrication
EP1192306B1 (fr) Procede pour la realisation d'un materiau non tisse, installation pour sa mise en oeuvre et non tisse ainsi obtenu
EP1373621B1 (fr) Procede et dispositif de fabrication d'une plaque composite a renfort fibreux multiaxial
CA2018567A1 (fr) Complexes textiles multicouches a base de nappes fibreuses ayant des caracteristiques differentes et procede pour leur obtention
EP0193075B1 (fr) Procédé de raccordement de deux troncons de bande d'essorage composite, notamment de feutre de partie humide de papeterie
EP0282379B1 (fr) Procédé de fabrication de feutres humides et machine de densification des nappes
FR2686628A1 (fr) Structure textile complexe a base de nappes fibreuses non tissees et procede et installation pour son obtention.
FR2731236A1 (fr) Installation pour la realisation de nappes non tissees dont la cohesion est obtenue par l'action de jets de fluide
FR2824086A1 (fr) Machine d'aiguilletage circulaire a table lisse
FR2734847A1 (fr) Armature textile utilisable pour la realisation de materiaux composites
EP0520911A1 (fr) Procédé pour réaliser un produit non-tissé semi-fini et produit non-tissé semi-fini
WO1993000465A1 (fr) Procede pour realiser un non-tisse, non-tisse obtenu notamment par ce procede et installation pour la fabrication de ce non-tisse
EP0285533B1 (fr) Matériau à base d'une nappe textile non tissée utilisable comme armature de renforcement de revêtements d'étanchéité
EP1009871B1 (fr) Procedes et dispositifs pour realiser une nappe et un produit textile continu profiles
EP0038276A1 (fr) Feutre humide pour papeterie
FR2801064A1 (fr) Procede et installation d'elaboration d'une nappe fibreuse multidirectionnelle
FR2498652A1 (fr) Feutre aiguillete pour la fabrication du papier et procede pour le fabriquer
WO2001068966A2 (fr) Installation pour la realisation de nappes non tissees dont la cohesion est obtenue par l'action de jets de fluide
FR2665913A1 (fr) Procede et dispositif pour aiguilleter des bandes de matiere.
EP0112247A2 (fr) Procédé et installation de production d'éléments filtrants notamment de masques respiratoires
FR2838458A1 (fr) Non tisse a nappes partiellement liees et ses procedes et machine de production
FR2943689A1 (fr) Renfort textile pour materiau composite et procede de fabrication d'un tel renfort

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): AT BE CH DE ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19890224

17Q First examination report despatched

Effective date: 19900913

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 ES FR GB GR IT LI NL SE

REF Corresponds to:

Ref document number: 71163

Country of ref document: AT

Date of ref document: 19920115

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 3867261

Country of ref document: DE

Date of ref document: 19920213

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2028308

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: FILZTUCHVERWALTUNGS GMBH

Effective date: 19920929

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

Ref country code: GR

Payment date: 19921228

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19921230

Year of fee payment: 6

Ref country code: AT

Payment date: 19921230

Year of fee payment: 6

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

Ref country code: GB

Payment date: 19930104

Year of fee payment: 6

NLR1 Nl: opposition has been filed with the epo

Opponent name: FILZTUCHVERWALTUNGS GMBH

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

Ref country code: CH

Payment date: 19930120

Year of fee payment: 6

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

Ref country code: ES

Payment date: 19930121

Year of fee payment: 6

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

Ref country code: SE

Payment date: 19930122

Year of fee payment: 6

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

Ref country code: BE

Payment date: 19930202

Year of fee payment: 6

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

Ref country code: DE

Payment date: 19930217

Year of fee payment: 6

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

Ref country code: NL

Payment date: 19930228

Year of fee payment: 6

RDAC Information related to revocation of patent modified

Free format text: ORIGINAL CODE: 0009299REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19940407

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 940407

R27W Patent revoked (corrected)

Effective date: 19940407

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLR2 Nl: decision of opposition
REG Reference to a national code

Ref country code: GR

Ref legal event code: MF4A

Free format text: 3003561

EUG Se: european patent has lapsed

Ref document number: 88400342.7

Effective date: 19940824