EP 0151447 A3 19850925 - WET PRESS FOR DEWATERING A WEB MATERIAL

Title (en)

WET PRESS FOR DEWATERING A WEB MATERIAL

Publication

EP 0151447 A3 19850925 (DE)

Application

EP 85100815 A 19850126

Priority

CH 53484 A 19840206

Abstract (en)

[origin: ES8601761A1] A wet press for use in dewatering a web of material (3), e.g. of paper, moves the web between a revolving roll (1) and a back-up device (2), together with a water absorbent band (4). The back-up device (2) has a hydrostatic pressure element (11) with a moving shoe (30) which has two pressure pockets (15,16). A piston (20) is aligned asymmetrically relative to the shoe to provide a larger area of the pressure pockets upstream than downstream of the piston centre, M.

IPC 1-7

D21F 3/02

IPC 8 full level

D21F 1/00 (2006.01); D21F 3/02 (2006.01)

CPC (source: EP US)

B30B 9/20 (2013.01 - EP); B30B 9/22 (2013.01 - EP); B30B 9/241 (2013.01 - EP); D21F 3/0218 (2013.01 - EP US)

Citation (search report)

[AD] FR 2219836 A1 19740927 - ESCHER WYSS SA [DE]
[A] US 3970515 A 19760720 - BUSKER LEROY H

Designated contracting state (EPC)

AT DE GB IT

DOCDB simple family (publication)

EP 0151447 A2 19850814; EP 0151447 A3 19850925; EP 0151447 B1 19880928; AR 241605 A1 19920930; AT E37572 T1 19881015; CA 1234306 A 19880322; DE 3408118 A1 19850814; DE 3408118 C2 19880128; DE 3565292 D1 19881103; ES 540150 A0 19851116; ES 8601761 A1 19851116; FI 81151 B 19900531; FI 81151 C 19900910; FI 850213 A0 19850117; FI 850213 L 19850807; JP H0583676 B2 19931129; JP S60181394 A 19850917; US 4661206 A 19870428

DOCDB simple family (application)

EP 85100815 A 19850126; AR 29940985 A 19850205; AT 85100815 T 19850126; CA 472793 A 19850124; DE 3408118 A 19840306; DE 3565292 T 19850126; ES 540150 A 19850205; FI 850213 A 19850117; JP 2020685 A 19850206; US 69585485 A 19850128