Global Patent Index - EP 0733735 B1

EP 0733735 B1 2001-01-24 - Wet end of a papermachine

Title (en)

Wet end of a papermachine

Title (de)

Nasspartie einer Papiermaschiene

Title (fr)

Partie humide d'une machine à papier

Publication

EP 0733735 B1 (DE)

Application

EP 96102508 A

Priority

DE 19509522 A

Abstract (en)

[origin: EP0733735A2] A wet end section of a paper machine has a distributor with several outlets, into which is fed the main stream of a pulp suspension, the outlets being connected via part-stream lines to a machine-width flow chamber which has a machine-width delivery nozzle. The part-stream lines are connected (directly or indirectly) to the flow chamber. At least one rotating sheet-forming screen is mounted downstream from the nozzle, the screen being provided with at least one receiver trough and opt. a screen water tank for the water collected in the trough. Dilution water lines for injecting the screen water into the part-stream lines in order to adjust the pulp density. The dilution lines are connected directly to the receiver trough or the pipeline system of the screen water tank, and/or the dilution water lines or the main stream lines or the part-stream lines are provided with inlets for chemicals such as retention aids or for additional pulp suspensions and fine-substance suspensions.

IPC 1-7 (main, further and additional classification)

D21F 1/08; D21F 1/66

IPC 8 full level (invention and additional information)

D21F 1/08 (2006.01); D21F 1/66 (2006.01)

CPC (invention and additional information)

D21F 1/66 (2013.01); D21F 1/08 (2013.01)

Designated contracting state (EPC)

AT DE FR SE

EPO simple patent family

EP 0733735 A2 19960925; EP 0733735 A3 19980114; EP 0733735 B1 20010124; AT 198917 T 20010215; DE 19509522 A1 19960926; DE 19509522 C2 19990311; US 5958189 A 19990928

INPADOC legal status


2011-05-31 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

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

- Effective date: 20090221

2010-04-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2010-01-29 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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

- Effective date: 20090901

2009-11-27 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20091030

2009-10-30 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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

- Effective date: 20090220

2009-10-13 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2008-07-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Payment date: 20080214

- Year of fee payment: 13

2008-06-30 [PGFP AT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2008-05-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2002-01-16 [26N] NO OPPOSITION FILED

2001-03-23 [ET] FR: TRANSLATION FILED

2001-03-01 [REF] CORRESPONDS TO:

- Document: DE 59606354 20010301

2001-01-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE FR SE

2001-01-24 [REF] CORRESPONDS TO:

- Document: AT 198917 T 20010215

2000-12-20 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VOITH PAPER PATENT GMBH

2000-01-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19991210

1999-01-13 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VOITH SULZER PAPIERTECHNIK PATENT GMBH

1998-05-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980314

1998-01-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT DE FR SE

1996-09-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT DE FR SE