EP0168718A2 - Tamis d'égouttage pour presses dans la partie humide d'une machine à papier - Google Patents

Tamis d'égouttage pour presses dans la partie humide d'une machine à papier Download PDF

Info

Publication number
EP0168718A2
EP0168718A2 EP85108267A EP85108267A EP0168718A2 EP 0168718 A2 EP0168718 A2 EP 0168718A2 EP 85108267 A EP85108267 A EP 85108267A EP 85108267 A EP85108267 A EP 85108267A EP 0168718 A2 EP0168718 A2 EP 0168718A2
Authority
EP
European Patent Office
Prior art keywords
top layer
drainage
belt according
belt
layer
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
EP85108267A
Other languages
German (de)
English (en)
Other versions
EP0168718B1 (fr
EP0168718B2 (fr
EP0168718A3 (en
Inventor
Franz-Ferdinand Dipl.-Kfm. Kufferath
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.)
KUFFERATH, FRANZ. F., DIPL.-KFM.
Original Assignee
Andreas Kufferath GmbH and Co KG
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=6240818&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0168718(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andreas Kufferath GmbH and Co KG filed Critical Andreas Kufferath GmbH and Co KG
Priority to AT85108267T priority Critical patent/ATE53870T1/de
Publication of EP0168718A2 publication Critical patent/EP0168718A2/fr
Publication of EP0168718A3 publication Critical patent/EP0168718A3/de
Publication of EP0168718B1 publication Critical patent/EP0168718B1/fr
Application granted granted Critical
Publication of EP0168718B2 publication Critical patent/EP0168718B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/90—Papermaking press felts

Definitions

  • the invention relates to a drainage belt for presses in the wet end of a paper machine, which has the features of the preamble of claim 1.
  • the paper web is guided on a dewatering belt or lying between two dewatering belts through the press nip of at least one wet press, which presses part of the water contained in the paper web out of the paper web by mechanical pressure.
  • the drainage belt or the drainage belts have the task of absorbing the water pressed out of the paper web.
  • the dewatering capacity of the dewatering belt designed in this way is fully utilized, i.e. the dewatering belt limits the performance of the wet press.
  • the working speed of the paper machines has not yet reached an upper limit.
  • the invention has for its object to provide a dewatering belt for presses in the wet end of a paper machine, which makes it possible to increase the dewatering performance of a wet press. This problem is solved by a drainage belt with the features of claim 1.
  • Such a drainage belt does not lose its openness in the press nip under pressure. Therefore, the water absorption capacity is not only increased by the formation of the top layer as a sieve fabric, but above all also by the fact that the water absorption capacity of the entire drainage belt can be fully used. It is therefore only necessary to select the open space of the dewatering belt at least so large that it can absorb all the water removed from the paper web in the press nip in order to increase the performance of the press.
  • the permeable layer can also speed of the drainage belt can be adjusted without difficulty so that no critical hydraulic pressure leading to the destruction of the paper web can build up in the press nip.
  • Another advantage of the drainage belt according to the invention is that the water stored in it can easily be removed again by centrifugal force when deflecting around a roller or by suction.
  • the drainage belt according to the invention also prevents rewetting of the paper web, that is to say a backflow of the water from the drainage belt into the paper web when it emerges from the press nip, much more than the known drainage belts.
  • the drainage belt according to the invention which not only enables a vertical drainage flow, but also a transverse drainage flow, allows the design of the top layer and the support belt and the interaction of the two parts to control the water absorption in a wide range and thus optimize the drainage performance under different conditions. It also helps improve sheet formation. For example, fluctuations in the basis weight of the paper web can be avoided by the uniform dewatering performance over the entire range. In addition, the printability of the paper web is evened out, i.e. the properties of the two sides of the paper web that are essential for the printability are brought closer to one another.
  • Another advantage of the drainage belt according to the invention can be seen in the fact that its drainage is possible with less energy consumption than with the commonly used wet felts.
  • the drainage channels of the top layer can ver towards the support band enlarge. This is also advantageous with regard to the least possible rewetting of the paper web.
  • the permeability of the support band for water and air is advantageously greater than that of the top layer.
  • the permeability of the two layers is preferably matched to one another in such a way that it corresponds to a funnel which is open towards the underside of the support band and faces away from the upper layer.
  • the number of drainage channels in the top layer is greater than in the support band. It is also advantageous if the screen fabric of the top layer has a substantially smaller thickness than that of the support band.
  • both the top layer and the support band can be adapted particularly well to the requirements if the top layer and / or the support band are of multi-layer construction, the individual layers being able to have different designs.
  • the dewatering belt is made up of four cross-thread layers arranged one above the other, of which the uppermost cross-thread layer coming into contact with the paper web is 1, the cross-thread layer directly below this is 2, the cross-thread layer below the latter is 3 and the the bottom transverse thread layer forming the running side of the drainage belt is designated by 4.
  • the top cross Thread layer 1 has 28 cross threads per cm with a diameter of 0.15 mm.
  • the course of the wires of this first longitudinal thread system 5 can be seen from the drawing. Two adjacent threads of the topmost transverse thread layer 1 are bound in each case.
  • the longitudinal wire then runs through between the next transverse thread of the uppermost transverse thread layer 1 and the transverse thread of the layer 2 aligned with this transverse thread, then binds in a thread of the first intermediate layer 2 and then again runs over three transverse threads between the uppermost layer 1 and the first intermediate layer 2 through.
  • the diameter of the transverse threads of the uppermost transverse thread layer 1 is less than the diameter of the threads of the first intermediate layer 2, the fact that the longitudinal threads are more strongly integrated into the uppermost transverse thread layer 1 reduces their openness to the first intermediate layer 2. Since approximately 50 31 of the longitudinal threads of the first longitudinal thread system 5, based on their total length, run between the uppermost transverse thread layer 1 and the immediately below first intermediate layer 2, between these two layers, which together form the upper layer of the drainage belt, a first flow channel system in the belt longitudinal direction created. The topmost transverse thread layer 1 and the first intermediate layer connected to it by the first longitudinal thread system 5 have an open space for water storage of approximately 50% of their volume.
  • the integral permeability of both layers, measured by the air passage, is 1420 1 / m 2 s at a vacuum of 10 mm WS.
  • the transverse thread layer 3 lying under the first intermediate layer 2, which can also be referred to as the second intermediate layer, has 14 transverse threads per cm with a diameter of 0.30 mm.
  • the transverse threads of the lowermost transverse thread system 4 are arranged exactly below those of the second intermediate layer, so that the lowest transverse thread layer 4 also has 14 transverse threads per cm. However, the thread diameter here is 0.35 mm.
  • the second intermediate layer 3 and the lowermost transverse thread layer 4, which together form the support band, are connected to one another by a second longitudinal thread system 6, which has 35 longitudinal threads per cm, the thread diameter being 0.27 mm.
  • the integration of the threads of the second intermediate layer and that of the lowermost transverse thread layer by the second longitudinal thread system 6 is, as the figure shows, carried out in the same way as in the uppermost transverse thread layer 1 and the first intermediate layer 2.
  • the longitudinal thread system 6 binds more strongly into the second intermediate layer 3, which has the consequence that the fabric opens from the second intermediate layer to the bottom transverse thread layer 4 also in the support band.
  • the fabric part of the drainage belt consisting of the second intermediate layer 3 and the lowest transverse thread layer 4 has an integral, open screen space of 60% with a total permeability of 2500 l / m 2 s.
  • All four transverse thread layers 1 to 4 are connected to one another along their longitudinal edge by a third longitudinal thread system (not shown for reasons of clarity) with a small number of threads.
  • This third longitudinal thread system consists of twisted wire, which has a diameter of 0.15 mm.
  • the drainage tape formed in the above manner has a total thickness of 1.6 mm. Of this, 0.25 mm is applied to the top transverse thread layer 1, 0.30 mm to the first intermediate layer immediately below, 0.45 mm to the second intermediate layer and 0.6 mm to the lowest transverse thread layer.
  • the openness of the drainage belt is well over 50% and it is almost incompressible.

Landscapes

  • Paper (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP85108267A 1984-07-17 1985-07-04 Tamis d'égouttage pour presses dans la partie humide d'une machine à papier Expired - Lifetime EP0168718B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108267T ATE53870T1 (de) 1984-07-17 1985-07-04 Entwaesserungsband fuer pressen in der nasspartie einer papiermaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843426264 DE3426264A1 (de) 1984-07-17 1984-07-17 Entwaeserungsband fuer pressen in der nasspartie einer papiermaschine
DE3426264 1984-07-17

Publications (4)

Publication Number Publication Date
EP0168718A2 true EP0168718A2 (fr) 1986-01-22
EP0168718A3 EP0168718A3 (en) 1986-08-13
EP0168718B1 EP0168718B1 (fr) 1990-05-02
EP0168718B2 EP0168718B2 (fr) 1996-05-15

Family

ID=6240818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108267A Expired - Lifetime EP0168718B2 (fr) 1984-07-17 1985-07-04 Tamis d'égouttage pour presses dans la partie humide d'une machine à papier

Country Status (14)

Country Link
US (2) US4867206A (fr)
EP (1) EP0168718B2 (fr)
JP (1) JPS6141394A (fr)
AR (1) AR245247A1 (fr)
AT (1) ATE53870T1 (fr)
AU (1) AU575178B2 (fr)
BR (1) BR8503111A (fr)
CA (1) CA1272631A (fr)
DE (2) DE3426264A1 (fr)
ES (1) ES288128Y (fr)
FI (1) FI80919C (fr)
MX (1) MX161288A (fr)
NO (1) NO166881C (fr)
PT (1) PT80813B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125470C1 (en) * 1991-08-01 1992-11-12 J.M. Voith Gmbh, 7920 Heidenheim, De Shoe press for dewatering fibre web in paper machine
DE4423436A1 (de) * 1994-07-05 1996-01-11 Franz F Kufferath Verfahren zur Entwässerung einer Papierbahn und Vorrichtung zur Durchführung des Verfahrens

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3426264A1 (de) * 1984-07-17 1986-01-30 Franz F. 5160 Düren Kufferath Entwaeserungsband fuer pressen in der nasspartie einer papiermaschine
DE3600530A1 (de) * 1986-01-10 1987-07-16 Wangner Gmbh Co Kg Hermann Verwendung einer papiermaschinenbespannung zur herstellung von tissue-papier oder poroesem vlies und dafuer geeignete papiermaschinenbespannung
DE3817144A1 (de) * 1988-05-19 1989-11-30 Wangner Gmbh Co Kg Hermann Doppellagige bespannung fuer den blattbildungsbereich einer papiermaschine
CA1320410C (fr) * 1988-06-27 1993-07-20 Takuo Tate Toile double epaisseur de papeterie
US5052448A (en) * 1989-02-10 1991-10-01 Huyck Corporation Self stitching multilayer papermaking fabric
JPH02122100U (fr) * 1989-03-18 1990-10-04
CA2066256C (fr) * 1989-09-19 1996-03-05 Graham William Jackson Feutre de presse d'essorage
DE3938159A1 (de) * 1989-11-16 1991-05-23 Oberdorfer Fa F Verbundgewebe fuer papiermaschinensiebe
US5025839A (en) * 1990-03-29 1991-06-25 Asten Group, Inc. Two-ply papermakers forming fabric with zig-zagging MD yarns
US5199467A (en) * 1990-06-06 1993-04-06 Asten Group, Inc. Papermakers fabric with stacked machine direction yarns
US5411062A (en) * 1990-06-06 1995-05-02 Asten Group, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
US5713396A (en) * 1990-06-06 1998-02-03 Asten, Inc. Papermakers fabric with stacked machine and cross machine direction yarns
USRE35966E (en) * 1990-06-06 1998-11-24 Asten, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
US5089324A (en) * 1990-09-18 1992-02-18 Jwi Ltd. Press section dewatering fabric
AT394869B (de) * 1990-10-25 1992-07-10 Hutter & Schrantz Ag Gewebe zum einsatz als papiermaschinenbespannung
US5169709A (en) * 1991-10-16 1992-12-08 Wangner Systems Corporation Paper machine forming fabric with controlled porosity
US5164249A (en) * 1991-11-22 1992-11-17 Wangner Systems Corporation Controlled porosity papermaking fabric
US5508094A (en) * 1991-12-18 1996-04-16 Albany International Corp. Press fabrics for paper machines
US5360518A (en) * 1991-12-18 1994-11-01 Albany International Corp. Press fabrics for paper machines
DE4232319A1 (de) * 1992-09-26 1994-03-31 Franz F Kufferath Mehrlagiges Pressensieb für Naßpressen einer Papiermaschine
US5421374A (en) * 1993-10-08 1995-06-06 Asten Group, Inc. Two-ply forming fabric with three or more times as many CMD yarns in the top ply than in the bottom ply
DE9416520U1 (de) * 1994-10-14 1996-02-15 Württembergische Filztuchfabrik D. Geschmay GmbH, 73035 Göppingen Preßfilz für die Entwässerung
US6030908A (en) * 1998-03-16 2000-02-29 Jwi Ltd. Multilayer porous fabric
DE19859581A1 (de) * 1998-12-22 2000-06-29 Voith Fabrics Heidenheim Gmbh Mehrlagiges Papiermaschinensieb zur Entwässerung und Blattbildung
JP2003089990A (ja) * 2001-09-14 2003-03-28 Ichikawa Woolen Textile Co Ltd 抄紙用プレスフェルト
US7128810B2 (en) * 2002-10-10 2006-10-31 Albany International Corp. Anti-rewet press fabric
WO2004038093A1 (fr) * 2002-10-24 2004-05-06 Voith Fabrics Heidenheim Gmbh & Co. Kg. Tissu de sechage par condensation
US7407564B2 (en) * 2002-11-15 2008-08-05 Albany International Corp. Stratified press fabric
US7008512B2 (en) * 2002-11-21 2006-03-07 Albany International Corp. Fabric with three vertically stacked wefts with twinned forming wefts
US20060231154A1 (en) * 2003-03-03 2006-10-19 Hay Stewart L Composite forming fabric
US7059359B2 (en) * 2003-05-22 2006-06-13 Voith Fabrics Warp bound composite papermaking fabric
US6978809B2 (en) 2003-09-29 2005-12-27 Voith Fabrics Composite papermaking fabric
BR0318629B1 (pt) 2003-12-11 2013-03-05 pano de prensa estratificado.
US20060278294A1 (en) * 2005-06-08 2006-12-14 Voith Fabrics Patent Gmbh Hybrid warp exchange triple layer forming fabric
DE102006022235A1 (de) * 2006-05-12 2007-11-15 Voith Patent Gmbh Papiermacher-Trockensieb
JP4883629B2 (ja) * 2007-03-13 2012-02-22 イチカワ株式会社 湿紙搬送用ベルト

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949134A (en) * 1955-09-23 1960-08-16 Scapa Dryers Ltd Papermakers' felts and like industrial woven textile fabrics
US3214326A (en) * 1963-04-16 1965-10-26 Huyck Corp Paper pressing method, felt and apparatus
US3885603A (en) * 1973-11-21 1975-05-27 Creech Evans S Papermaking fabric
US4356844A (en) * 1980-02-11 1982-11-02 Huyck Corporation Papermaker's forming fabric
US4503113A (en) * 1982-03-12 1985-03-05 Huyck Corporation Papermaker felt with a three-layered base fabric
DE3224187C2 (de) * 1982-06-29 1989-01-12 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verband-Gewebe als Bespannung für den Blattbildungsbereich einer Papiermaschine
DE3225599C2 (de) * 1982-07-08 1991-08-01 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verbund-Gewebe als Bespannung für den Blattbildungsbereich einer Papiermaschine
DE3305713C1 (de) * 1983-02-18 1984-04-19 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verbund-Gewebe als Bespannung fuer den Blattbildungsteil einer Papiermaschine
US4564051A (en) * 1983-07-16 1986-01-14 Andreas Kufferath Gmbh & Co. Kg Multiple ply dewatering screen particularly for a web forming part of a paper making machine
SE439651B (sv) * 1983-10-25 1985-06-24 Nordiskafilt Ab Formeringsvira
DE3426264A1 (de) * 1984-07-17 1986-01-30 Franz F. 5160 Düren Kufferath Entwaeserungsband fuer pressen in der nasspartie einer papiermaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125470C1 (en) * 1991-08-01 1992-11-12 J.M. Voith Gmbh, 7920 Heidenheim, De Shoe press for dewatering fibre web in paper machine
DE4423436A1 (de) * 1994-07-05 1996-01-11 Franz F Kufferath Verfahren zur Entwässerung einer Papierbahn und Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP0168718B1 (fr) 1990-05-02
JPS6141394A (ja) 1986-02-27
PT80813B (pt) 1987-09-30
EP0168718B2 (fr) 1996-05-15
DE3426264A1 (de) 1986-01-30
PT80813A (en) 1985-08-01
DE3577458D1 (de) 1990-06-07
FI80919B (fi) 1990-04-30
MX161288A (es) 1990-08-29
ES288128Y (es) 1986-08-01
DE3426264C2 (fr) 1988-04-21
CA1272631A (fr) 1990-08-14
FI852774A0 (fi) 1985-07-15
AR245247A1 (es) 1993-12-30
US5056565A (en) 1991-10-15
ATE53870T1 (de) 1990-06-15
NO166881B (no) 1991-06-03
US4867206A (en) 1989-09-19
EP0168718A3 (en) 1986-08-13
FI80919C (fi) 1990-08-10
AU575178B2 (en) 1988-07-21
AU4456985A (en) 1986-01-23
NO166881C (no) 1996-04-25
ES288128U (es) 1986-01-01
FI852774L (fi) 1986-01-18
NO852839L (no) 1986-01-20
BR8503111A (pt) 1986-03-18

Similar Documents

Publication Publication Date Title
EP0168718A2 (fr) Tamis d'égouttage pour presses dans la partie humide d'une machine à papier
EP0432413B1 (fr) Tissu combiné pour toiles pour machine à papier
DE69226285T2 (de) Mehrschichtiger filz
EP0287836B1 (fr) Tissu à deux couches pour machine à papier
DE3036409C2 (de) Doppellagiges Sieb für den Siebteil einer Papiermaschine
DE2435376C2 (de) Papiermaschinenfilz
DE3801739C2 (fr)
DE2819301C2 (de) Mehrschichtiges Nadelvliesband sowie Verfahren und Vorrichtung zu dessen Herstellung
EP0290653B1 (fr) Bande de matériaux
DE2540490B2 (de) Sieb für Papiermaschinen
DE69217467T2 (de) Pressfilze für Papiermaschine
DE3244142C2 (fr)
EP0590288B1 (fr) Toile de presse à plusieurs couches pour la presse humide d'une machine à papier
DE2747160A1 (de) Papiermaschinentuch
AT395874B (de) Pressfilz
WO1994004748A1 (fr) Toile de mise en forme
DE2534290B2 (de) Siebpartie für Papiermaschinen
EP2764157B1 (fr) Toile pour machine a papier
DE69429390T2 (de) Formiervorrichtung für mehrschichtige Faserbahnen
DE4040861C2 (de) Preßfilz sowie Verfahren zu dessen Herstellung
DE69713104T2 (de) Doppelsiebformer für eine papiermaschine
EP1205599A2 (fr) Machine pour la fabrication d'une bande fibreuse
DE2455185A1 (de) Gewebe zur herstellung von papier
DE60121810T2 (de) Verfahren zur herstellung eines pressfilzes sowie pressfilz
DE3444082A1 (de) Entwaesserungsband, insbesondere als bespannung fuer den nassbereich von papiermaschinen

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 DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KUFFERATH, FRANZ. F., DIPL.-KFM.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUFFERATH, FRANZ. F., DIPL.-KFM.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19861209

17Q First examination report despatched

Effective date: 19880418

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

REF Corresponds to:

Ref document number: 53870

Country of ref document: AT

Date of ref document: 19900615

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3577458

Country of ref document: DE

Date of ref document: 19900607

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: NORDISKAFILT AB

Effective date: 19910125

26 Opposition filed

Opponent name: FILZTUCHVERWALTUNGS GMBH

Effective date: 19910201

Opponent name: NORDISKAFILT AB

Effective date: 19910125

26 Opposition filed

Opponent name: HERMANN WANGNER GMBH & CO. KG

Effective date: 19910204

Opponent name: FILZTUCHVERWALTUNGS GMBH

Effective date: 19910201

Opponent name: NORDISKAFILT AB

Effective date: 19910125

NLR1 Nl: opposition has been filed with the epo

Opponent name: NORDISKAFILT AB.

NLR1 Nl: opposition has been filed with the epo

Opponent name: HERMANN WANGNER GMBH & CO. KG

Opponent name: FILZTUCHVERWALTUNGS GMBH

ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85108267.7

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19960515

AK Designated contracting states

Kind code of ref document: B2

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

ET3 Fr: translation filed ** decision concerning opposition
NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
ITF It: translation for a ep patent filed
GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19960814

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20040720

Year of fee payment: 20

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

Ref country code: CH

Payment date: 20040721

Year of fee payment: 20

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

Ref country code: LU

Payment date: 20040722

Year of fee payment: 20

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

Ref country code: AT

Payment date: 20040726

Year of fee payment: 20

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

Ref country code: NL

Payment date: 20040728

Year of fee payment: 20

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

Ref country code: FR

Payment date: 20040729

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20040730

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20040901

Year of fee payment: 20

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

Ref country code: SE

Payment date: 20040928

Year of fee payment: 20

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20050703

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 EXPIRATION OF PROTECTION

Effective date: 20050704

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BE20 Be: patent expired

Owner name: *KUFFERATH FRANZ F.

Effective date: 20050704

EUG Se: european patent has lapsed
NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20050704

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

BE20 Be: patent expired

Owner name: *KUFFERATH FRANZ F.

Effective date: 20050704