Global Patent Index - EP 0771903 B1

EP 0771903 B1 19990804 - Process and apparatus for treating a fibrous- or paper web

Title (en)

Process and apparatus for treating a fibrous- or paper web

Title (de)

Verfahren und Vorrichtung zur Behandlung einer Faserstoff- oder Papierbahn

Title (fr)

Procédé et dispositif pour le traitement d'une bande de fibres ou de papier

Publication

EP 0771903 B1 19990804 (DE)

Application

EP 96114759 A 19960914

Priority

DE 19540898 A 19951102

Abstract (en)

[origin: EP0771903A1] A process for treatment of a fibrous pulp or paper web in a press apparatus entails leading the web through a gap with an especially extended press zone (5) formed between a press roller (1) and a counter element, preferably a roller (6). The press roller has a revolving cover (2) made from, especially polyurethane, plastic and a stationary crosshead (3) set axially through the cover, which is pushed in the direction of the counter element by a press shoe (16) supported by at least one support element (4) on the crosshead. At least an area of the cover's external surface is cooled in the axial direction in order to increase the cover's abrasion resistance. Also claimed is the apparatus for treatment of the web (P) as above and including a felt belt (7) on which the web is fed through the gap. There is a cooling apparatus for cooling the cover.

IPC 1-7

D21F 3/02

IPC 8 full level

D21F 3/02 (2006.01)

CPC (source: EP US)

D21F 3/0218 (2013.01 - EP US)

Designated contracting state (EPC)

AT DE FI SE

DOCDB simple family (publication)

EP 0771903 A1 19970507; EP 0771903 B1 19990804; AT E182934 T1 19990815; CA 2188726 A1 19970503; DE 19540898 A1 19970507; DE 59602606 D1 19990909; ID 17218 A 19971211; US 5755931 A 19980526

DOCDB simple family (application)

EP 96114759 A 19960914; AT 96114759 T 19960914; CA 2188726 A 19961024; DE 19540898 A 19951102; DE 59602606 T 19960914; ID 963184 A 19961104; US 73589896 A 19961023