Global Patent Index - EP 1057927 A1

EP 1057927 A1 20001206 - Screen cylinder, especially for paper pulp

Title (en)

Screen cylinder, especially for paper pulp

Title (de)

Siebzylinder, insbesondere für Papierfaserstoff

Title (fr)

Tamis cylindrique, notamment pour la pate à papier

Publication

EP 1057927 A1 20001206 (FR)

Application

EP 00401562 A 20000602

Priority

FR 9907070 A 19990604

Abstract (en)

The cylindrical sieve, especially for processing paper pulp, has two flanges (1,2) held together by a number of bars (3). It has at least one axially rigid and thin filter sieve (10), held in place by supporting rings (11) which also secure it against the bars (3). The cylindrical sieve also has at least one reinforcement ring (20), placed between successive filter sections (10A,10B), with passage openings (20A) for the bars (3) to pass through and lock the assembly together against twisting. The bars (3) are secured to the outer flanges (1,2) with butts (6,7) to maintain a fixed gap between the flanges (1,2). Wedges (12) are inserted between the filter mesh sieve and one or other of the flanges (1,2). The support rings (11) are welded to the filter sieve (10), at their inner or outer surfaces, and their other surfaces are in contact with the support bars (3). The gap between neighboring support rings (11) is about 25 mm.

IPC 1-7

D21D 5/16

IPC 8 full level

D21D 5/02 (2006.01); B07B 1/20 (2006.01); B07B 1/46 (2006.01); B21D 5/02 (2006.01); B21D 5/16 (2006.01); D21D 5/16 (2006.01)

CPC (source: EP US)

D21D 5/16 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 1057927 A1 20001206; EP 1057927 B1 20030507; AT E239821 T1 20030515; CA 2311154 A1 20001204; CA 2311154 C 20071218; DE 60002521 D1 20030612; DE 60002521 T2 20040318; ES 2198260 T3 20040201; FR 2794478 A1 20001208; FR 2794478 B1 20010803; JP 2001003289 A 20010109; NO 20002795 D0 20000531; NO 20002795 L 20001205; NO 316616 B1 20040308; US 6338412 B1 20020115; US RE38738 E 20050531

DOCDB simple family (application)

EP 00401562 A 20000602; AT 00401562 T 20000602; CA 2311154 A 20000601; DE 60002521 T 20000602; ES 00401562 T 20000602; FR 9907070 A 19990604; JP 2000165835 A 20000602; NO 20002795 A 20000531; US 14020502 A 20020508; US 58732900 A 20000605