EP0719361B1 - Presspartie - Google Patents

Presspartie Download PDF

Info

Publication number
EP0719361B1
EP0719361B1 EP94924136A EP94924136A EP0719361B1 EP 0719361 B1 EP0719361 B1 EP 0719361B1 EP 94924136 A EP94924136 A EP 94924136A EP 94924136 A EP94924136 A EP 94924136A EP 0719361 B1 EP0719361 B1 EP 0719361B1
Authority
EP
European Patent Office
Prior art keywords
press
extended nip
shoe
felt
web
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
EP94924136A
Other languages
English (en)
French (fr)
Other versions
EP0719361A1 (de
Inventor
Arnold Joseph Schmitt
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.)
Beloit Technologies Inc
Original Assignee
Beloit Technologies Inc
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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of EP0719361A1 publication Critical patent/EP0719361A1/de
Application granted granted Critical
Publication of EP0719361B1 publication Critical patent/EP0719361B1/de
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
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof

Definitions

  • the present invention relates to a press section apparatus for pressing water from a formed web. More specifically, the present invention relates to an extended nip press.
  • the web tends to be thrown off of the felt by centrifugal force as the web travels around the FLEX-O-NIP type roll upstream relative to the second extended nip press.
  • EP-A-0 289 477 describes a press apparatus including two extended nip presses downstream of successive nips formed by press roll couples in the first pressing stage.
  • GB-A-2 127 449 discloses a press section apparatus which includes first extended nip press for pressing a first portion of water from the web.
  • a press pick-up felt loop extends through the first extended nip press and a suction turning roll is disposed downstream relative to the first extended nip press and within the pick-up felt loop for guiding the press felt and for urging the web towards and around the turning roll.
  • a second extended nip press is disposed downstream relative to the turning roll.
  • the pick-up felt extends through the second extended nip press.
  • the second press includes a backing roll disposed on one side of the web having a smooth circumferential surface such that the web follows the surface when the web emerges from the second extended nip press.
  • a transfer means transfers the web away from the smooth surface.
  • the press apparatus of the invention is characterized by the features claimed in the characterizing portion of claim 1.
  • the first extended nip press includes a first extended nip press shoe disposed within the loop of a second press felt which is disposed between the first extended nip press shoe and the web.
  • a first vented controlled deflection roll cooperates with the first shoe.
  • the first roll is disposed within the loop defined by the pick-up felt.
  • the arrangement is such that the web is disposed between the press felt and the second press felt. During movement of the press felt, the web and the second press felt are disposed between the first vented deflection roll and the first extended nip press shoe.
  • the first extended nip press further includes a vented extended nip press blanket which is disposed between the first extended nip press shoe and the second press felt.
  • a further press felt is disposed downstream relative to the smooth surface.
  • the arrangement is such that the transfer means transfers the web from the smooth surface onto the further press felt.
  • a third extended nip press is disposed downstream relative to the transfer means.
  • the third extended nip press includes a further backing roll disposed on the opposite side of the web, thereby controlling two-sidedness of the resultant web.
  • the web is fully supported between the first and second extended nip presses by the pick-up felt and two-sided ness of the resultant web is controlled by the third extended nip press.
  • the first extended nip press shoe is a hydrodynamic shoe, and in another embodiment cf the present invention, the first press shoe is a hydrostatic shoe.
  • the suction turning roll is connected to a source of partial vacuum such that the web is urged towards the press felt when the press felt and the second press felt diverge relative to each other.
  • the second extended nip press includes a second extended nip press shoe which is disposed within a loop defined by the press felt.
  • the press section apparatus also includes a second vented blanket which is disposed between the second extended nip press shoe and the press felt.
  • the second extended nip press shoe is a hydrodynamic shoe, and in another embodiment of the present invention, is a hydrostatic shoe.
  • the second extended nip press includes a second controlled deflection backing roll which cooperates with the second extended nip press shoe for removing a second portion of water from the web.
  • the transfer means includes a lead-in roll which is disposed in close proximity to the smooth surface and downstream relative to the second press shoe for leading the pressed web from the smooth surface towards the further press felt.
  • the transfer means includes a suction transfer roll which is disposed within a further loop defined by the further press felt such that the web supported by the further press felt is guided from the lead-in roll towards the third extended nip press.
  • the third extended nip press includes a third extended nip press shoe which is disposed within the further loop.
  • the third extended nip press includes a third vented blanket which is disposed between the third press shoe and the further press felt.
  • the third press shoe is a hydrodynamic shoe, and in another embodiment of the present invention, the third press shoe is a hydrostatic shoe.
  • the third extended nip press also includes a third controlled deflection controlled backing roll which cooperates with the third extended nip press shoe for pressing the web and for controlling two-sidedness of the resultant web.
  • Figure 1 is a side-elevational view of a press section apparatus, generally designated 10 according to the present invention, for pressing water from a formed web W.
  • the apparatus 10 includes a first extended nip press N1 for pressing a first portion of water from the web W .
  • a press felt 12 extends through the first extended nip press N1, and a suction turning roll 14 is disposed downstream relative to the first extended nip press N1 for guiding the press felt 12 and for urging the web W towards and around the turning roll 14.
  • a second extended nip press N2 is disposed downstream relative to the turning roll 14.
  • the second extended nip press N2 includes a backing roll 16 having a smooth circumferential surface 18 such that the web W follows the surface 18 when the web W emerges from the second extended nip press N2.
  • Transfer means transfer the web W away from the smooth surface 18 to a further press felt 22 which is disposed downstream relative to the smooth surface 18 .
  • the arrangement is such that the transfer means 20 transfers the web W from the smooth surface 18 onto the further press felt 22 .
  • a third extended nip press N3 is disposed downstream relative to the transfer means 20 for controlling two-sidedness of the resultant web W .
  • the first extended nip press N1 includes a first extended nip press shoe 24.
  • the press N1 also includes a second press felt 26 which is disposed between the first extended nip press shoe 24 and the web W .
  • a first vented controlled deflection roll 28 cooperates with the first shoe 24 , the arrangement being such that the web W is disposed between the press felt 12 and the second press felt 26 during movement of the press felt 12 , the web W and the second press felt 26 between the first vented deflection roll 28 and the first extended nip press shoe 24 .
  • the first extended nip press N1 also includes a vented extended nip press blanket 30 which is disposed between the first extended nip press shoe 24 and the second press felt 26 .
  • the first extended nip press shoe 24 is a hydrodynamic shoe.
  • the first extended nip press shoe 24A is a hydrostatic shoe.
  • the suction turning roll 14 is connected to a source of partial vacuum 32 such that the web W is urged towards the press felt 12 when the press felt 12 and the second press felt 26 diverge relative to each other.
  • the second extended nip press N2 includes a second extended nip press shoe 34 which is disposed within a loop defined by the press felt 12.
  • the press section apparatus 10 also includes a second vented blanket 36 which is disposed between the second extended nip press shoe 34 and the press felt 12.
  • the second extended nip press shoe is a hydrodynamic shoe, as indicated in Figure 1, and in a second embodiment of the present invention as shown in Figure 2, the second extended nip press shoe 34A is a hydrostatic shoe.
  • the second extended nip press N2 includes the backing roll 16 which is a second controlled deflection backing roll.
  • the backing roll 16 cooperates with the second extended nip press shoe 34 for removing a second portion of water from the web W .
  • the transfer means 20 includes a lead-in roll 38 which is disposed in close proximity to the smooth surface 18 and downstream relative to the second press shoe 34 for leading the pressed web W from the smooth surface 18 towards the further press felt 22 .
  • the transfer means 20 also includes a suction transfer roll 40 which is disposed within a further loop defined by the further press felt 22.
  • the arrangement is such that the web W supported by the further press felt 22 is guided from the lead-in roll 38 towards the third extended nip press N3.
  • the third extended nip press N3 includes a third extended nip press shoe 42 disposed within the further loop.
  • the third extended nip press shoe 42 cooperates with a third vented blanket 44 which is disposed between the third press shoe 42 and the further press felt 22.
  • the third press shoe 42 is a hydrodynamic shoe, whereas in Figure 2, the third press shoe 42A is a hydrostatic shoe.
  • the third extended nip press N3 also includes a third controlled deflection controlled backing roll 46 which cooperates with the third extended nip press shoe 42 for pressing the web W and for controlling two-sidedness of the resultant web.
  • FIG 2 shows an alternative embodiment of the present invention in which each of the press shoes 24A,34A and 42A is a hydrostatic shoe, rather than a hydrodynamic shoe.
  • the arrangement shown in Figure 2 is identical to that shown in Figure 1, and similar reference characters are used to identify similar parts, such numerals having the suffix "A" added thereto.
  • the web is fully supported through the first extended nip press N1A between cooperating felts 12A and 26A. Subsequently, the suction turning roll 14 guides the web supported by the felt 12 so that the web W is guided through the second nip N2.
  • the arrangement particularly enables stabilization of the relatively wet web from the first extended nip press N1 to the second extended nip press N2 .
  • the web adheres to the smooth surface 18 of the backing roll 16 and is doctored therefrom so that a tail can be threaded under the lead roll 38 and drawn onto the further felt 22 for guidance through the third nip press N3.
  • the present invention provides a significant improvement over the prior art presses and avoids the problem of blowing the unstable pressed web away from a supporting press felt when such web emerges from a first extended nip press.

Landscapes

  • Paper (AREA)

Claims (15)

  1. Pressenpartievorrichtung (10) zum Pressen von Wasser aus einer gebildeten Bahn (W), wobei die Vorrichtung aufweist:
    eine erste Presse (N1) mit ausgedehnter Preßzone zum Pressen eines ersten Teils von Wasser aus der Bahn (W), wobei die erste Presse (N1) mit ausgedehnter Preßzone einen ersten Schuh (24) der ersten Presse mit ausgedehnter Preßzone, eine erste belüftete Walze (28), die mit dem ersten Schuh (24) zusammenwirkt, und eine Decke (30) der Presse mit ausgedehnter Preßzone, welche zwischen dem ersten Schuh (24) und der Bahn (W) angeordnet ist, aufweist;
    eine Schleife eines ersten Abnahmefilzes (12) und eine Schleife eines zweiten Preßfilzes (26), die sich durch die erste Presse (N1) mit ausgedehnter Preßzone erstrecken, wobei die Anordnung so getroffen ist, daß die Bahn (W) zwischen dem Pressenabnahmefilz (12) und dem zweiten Preßfilz (26) während der Bewegung des Pressenabnahmefilzes (12), der Bahn (W) und des zweiten Preßfilzes (26) zwischen der ersten belüfteten Walze (28) und dem Schuh (24) der ersten Presse mit ausgedehnter Preßzone angeordnet ist;
    eine Saugumlenkwalze (14), die relativ zu der ersten Presse (N1) mit ausgedehnter Preßzone stromabwärts und innerhalb der Schleife des Pressenabnahmefilzes (12) angeordnet ist, um den Abnahmepreßfilz (12) zu führen und um die Bahn (W) zu der und um die Umlenkwalze (14) zu drängen;
    eine zweite Presse (N2) mit ausgedehnter Preßzone, die relativ zu der Umlenkwalze (14) stromabwärts angeordnet ist;
    wobei sich der Pressenabnahmefilz (12) durch die zweite Presse (N2) mit ausgedehnter Preßzone erstreckt;
    wobei die zweite Presse (N2) mit ausgedehnter Preßzone aufweist:
    eine Gegenwalze (16), die auf einer Seite der Bahn (W) angeordnet ist, wobei die Gegenwalze (16) eine glatte Umfangsoberfläche (18) hat, die so strukturiert und angeordnet ist, daß die Bahn (W) der Oberfläche (18) folgt, wenn die Bahn (W) aus der zweiten Presse (N2) mit ausgedehnter Preßzone austritt; und
    eine Überführeinrichtung (20) zum Überführen der Bahn (W) von der glatten Oberfläche (18) aus,
    dadurch gekennzeichnet,
    daß der Schuh (24) der ersten Presse mit ausgedehnter Preßzone innerhalb der durch den zweiten Preßfilz (26) gebildeten Schleife angeordnet ist,
    daß der zweite Preßfilz (26) zwischen dem Schuh (24) der ersten Presse mit ausgedehnter Preßzone und der Bahn (W) angeordnet ist,
    daß die erste belüftete Walze (28) eine belüftete Walze mit gesteuerter Durchbiegung ist, wobei die erste belüftete Walze (28) mit gesteuerter Durchbiegung innerhalb der durch den Pressenabnahmefilz (12) gebildeten Schleife angeordnet ist, und
    daß die Decke (30) der Presse mit ausgedehnter Preßzone eine belüftete Decke der Presse mit ausgedehnter Preßzone ist, die zwischen dem Schuh (24) der ersten Presse mit ausgedehnter Preßzone und dem zweiten Preßfilz (26) angeordnet ist, wobei die Vorrichtung weiter aufweist:
    einen dritten Preßfilz (22), der relativ zu der glatten Oberfläche (18) stromabwärts angeordnet ist, wobei die Anordnung so getroffen ist, daß die Überführeinrichtung (20) die Bahn (W) von der glatten Oberfläche (18) auf den weiteren Preßfilz (20) überführt; und
    eine dritte Presse (N3) mit ausgedehnter Preßzone, die relativ zu der Überführeinrichtung (20) stromabwärts angeordnet ist, wobei die dritte Presse (N3) mit ausgedehnter Preßzone eine weitere Gegenwalze (46) aufweist, die auf der entgegengesetzten Seite der Bahn (W) angeordnet ist, um dadurch die Zweiseitigkeit der resultierenden Bahn (W) zu steuern.
  2. Pressenpartievorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Schuh (24) der ersten Presse mit ausgedehnter Preßzone ein hydrodynamischer Schuh ist.
  3. Pressenpartievorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Schuh (24A) der ersten Presse mit ausgedehnter Preßzone ein hydrostatischer Schuh ist.
  4. Pressenpartievorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Saugumlenkwalze (14) an eine Teilvakuumquelle (32) angeschlossen ist, so daß die Bahn (W) zu dem Pressenabnahmefilz (12) gedrängt wird, wenn der Pressenabnahmefilz (12) und der zweite Preßfilz (26) relativ zueinander divergieren.
  5. Pressenpartievorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Presse (N2) mit ausgedehnter Preßzone aufweist:
    einen Schuh (34) der zweiten Presse mit ausgedehnter Preßzone, der innerhalb der durch den Pressenabnahmefilz (12) gebildeten Schleife angeordnet ist.
  6. Pressenpartievorrichtung nach Anspruch 5, gekennzeichnet weiter durch eine belüftete Decke (36), die zwischen dem Schuh (34) der zweiten Presse mit ausgedehnter Preßzone und dem Pressenabnahmefilz (12) angeordnet ist.
  7. Pressenpartievorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Schuh (34) der zweiten Presse mit ausgedehnter Preßzone ein hydrodynamischer Schuh ist.
  8. Pressenpartievorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Schuh (34A) der zweiten Presse mit ausgedehnter Preßzone ein hydrostatischer Schuh ist.
  9. Pressenpartievorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Gegenwalze (16) in der zweiten Presse (N2) mit ausgedehnter Preßzone eine zweite Gegenwalze (16) mit gesteuerter Durchbiegung ist, die mit dem Schuh (34) der zweiten Presse mit ausgedehnter Preßzone zusammenwirkt, um einen zweiten Teil von Wasser aus der Bahn (W) zu entfernen.
  10. Pressenpartievorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Überführeinrichtung (20) aufweist:
    eine Einführwalze (38), die in enger Nähe zu der glatten Oberfläche (18) und relativ zu dem Preßschuh (34) stromabwärts angeordnet ist, um die gepreßte Bahn (W) von der glatten Oberfläche (18) aus zu dem weiteren Preßfilz (22) zu führen, und
    eine Saugüberführwalze (40), die innerhalb einer durch den weiteren Preßfilz (22) gebildeten Schleife angeordnet ist, so daß die durch den weiteren Preßfilz (22) abgestützte Bahn (W) von der Einführwalze (38) aus zu der dritten Presse (N3) mit ausgedehnter Preßzone geführt wird.
  11. Pressenpartievorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die dritte Presse (N3) mit ausgedehnter Preßzone aufweist:
    einen Schuh (42) der Presse mit ausgedehnter Preßzone, welcher innerhalb der weiteren Schleife angeordnet ist.
  12. Pressenpartievorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die dritte Presse (N3) mit ausgedehnter Preßzone aufweist:
    eine belüftete Decke (44), die zwischen dem Preßschuh (42), der in der weiteren Schleife angeordnet ist, und dem weiteren Preßfilz (22) angeordnet ist.
  13. Pressenpartievorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der Preßschuh (42), der in der weiteren Schleife angeordnet ist, ein hydrodynamischer Schuh ist.
  14. Pressenpartievorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der Preßschuh (42A), der in der weiteren Schleife angeordnet ist, ein hydrostatischer Schuh ist.
  15. Pressenpartievorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die weitere Gegenwalze (46) in der dritten Presse (N3) mit ausgedehnter Preßzone eine Gegenwalze (46) mit gesteuerter Druchbiegung ist, die mit dem Schuh (42) der Presse mit ausgedehnter Preßzone, welcher in der weiteren Schleife angeordnet ist, zusammenwirkt, um die Bahn (W) zu pressen und um die Zweiseitigkeit der resultierenden Bahn zu steuern.
EP94924136A 1993-09-16 1994-08-08 Presspartie Expired - Lifetime EP0719361B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12302293A 1993-09-16 1993-09-16
PCT/US1994/008873 WO1995008025A1 (en) 1993-09-16 1994-08-08 A press section apparatus
US123022 2002-04-15

Publications (2)

Publication Number Publication Date
EP0719361A1 EP0719361A1 (de) 1996-07-03
EP0719361B1 true EP0719361B1 (de) 1998-12-02

Family

ID=22406276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94924136A Expired - Lifetime EP0719361B1 (de) 1993-09-16 1994-08-08 Presspartie

Country Status (8)

Country Link
EP (1) EP0719361B1 (de)
JP (1) JP2720113B2 (de)
KR (1) KR960704114A (de)
BR (1) BR9407490A (de)
CA (1) CA2171952A1 (de)
DE (1) DE69415031T2 (de)
FI (1) FI116148B (de)
WO (1) WO1995008025A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI953245A (fi) * 1995-06-30 1996-12-31 Valmet Corp Paperikoneen puristinosa
DE19802853A1 (de) * 1998-01-26 1999-07-29 Voith Sulzer Papiertech Patent Pressenanordnung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57209685A (en) * 1981-06-19 1982-12-23 Kotobuki Kogyo Kk Detection of exchange period for water-softening material in hard water softener
CA1225266A (en) * 1982-09-29 1987-08-11 Jan I. Bergstrom Press arrangement
JPS60150840A (ja) * 1984-01-19 1985-08-08 Miura Co Ltd 自動再生型硬水軟化装置の異状検出装置
EP0289477A3 (de) * 1987-04-28 1989-03-08 Valmet Paper Machinery Inc. Verfahren zur Heisspressung von Papierbahnen und Trocknungsanlage zur Durchführung des Verfahrens
DE9206340U1 (de) * 1991-08-10 1992-08-13 Sulzer-Escher Wyss GmbH, 7980 Ravensburg Pressenpartie einer Papiermaschine
DE4321403A1 (de) * 1993-06-26 1994-01-20 Voith Gmbh J M Pressenpartie mit feststehendem Heizelement

Also Published As

Publication number Publication date
JP2720113B2 (ja) 1998-02-25
DE69415031T2 (de) 1999-07-01
DE69415031D1 (de) 1999-01-14
BR9407490A (pt) 1996-06-25
WO1995008025A1 (en) 1995-03-23
FI116148B (fi) 2005-09-30
JPH08509036A (ja) 1996-09-24
CA2171952A1 (en) 1995-03-23
EP0719361A1 (de) 1996-07-03
FI961228A (fi) 1996-03-15
FI961228A0 (fi) 1996-03-15
KR960704114A (ko) 1996-08-31

Similar Documents

Publication Publication Date Title
US4943351A (en) Transfer apparatus and method
US4483745A (en) Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
EP0159280B1 (de) Anordnung einer Breit-Nip-Presse
EP0359696B1 (de) Verfahren und Vorrichtung zur Herstellung einer Papierbahn
EP0345266B1 (de) Vorrichtung zur trocknung einer bahn
EP0740017B1 (de) Presspartie einer Papiermaschine mit zwei getrennten Walzenspalten
EP0267186B1 (de) Presse für fortlaufende bahnen
US4059482A (en) Paper machine pickup and crepe-setting press section
US4236962A (en) Method and apparatus for separating a web from a former wire and transferring the web to a press felt
US6432273B1 (en) Former-press section in a paper machine and method for transfer of the web from the former to the press section
EP0586586B1 (de) Pressenanlage
US6863776B2 (en) Press section
EP0719361B1 (de) Presspartie
EP0647285B1 (de) Gekrümmte saugkastenvorrichtung
US5064503A (en) Combination comprising the press section and the initial part of the drying section in a paper making machine
EP0197906B1 (de) Lauf des Filzes und der Bahn in einer Papiermaschine
US6849159B1 (en) Device and method in the transfer of the paper board web in the paper or board machine
US4081320A (en) Method and apparatus for separating a fibrous web from a foraminous belt
US5124000A (en) Method of and an arrangement for passing a fibre web from a wire through a press section
US6361658B2 (en) Press section
US20050016703A1 (en) Smoothing device
US7192507B2 (en) Machine for producing a fibrous material web
US11946203B2 (en) Device and method for transferring a strip of a web
US20030089480A1 (en) Simple press section in a paper or board machine
US6668469B2 (en) Removal device

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960130

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

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

Owner name: BELOIT TECHNOLOGIES, INC.

17Q First examination report despatched

Effective date: 19961203

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

REF Corresponds to:

Ref document number: 69415031

Country of ref document: DE

Date of ref document: 19990114

ET Fr: translation filed
ITF It: translation for a ep patent 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
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: DE

Payment date: 20080822

Year of fee payment: 15

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

Ref country code: IT

Payment date: 20080826

Year of fee payment: 15

Ref country code: FR

Payment date: 20080813

Year of fee payment: 15

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

Ref country code: GB

Payment date: 20080821

Year of fee payment: 15

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

Ref country code: SE

Payment date: 20080815

Year of fee payment: 15

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

Effective date: 20090808

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100430

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: 20090831

Ref country code: DE

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

Effective date: 20100302

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 NON-PAYMENT OF DUE FEES

Effective date: 20090808

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

Ref country code: IT

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

Effective date: 20090808

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

Ref country code: SE

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

Effective date: 20090809