EP 0440076 B1 19940629 - Press felt.
Title (en)
Press felt.
Title (de)
Pressfilz.
Title (fr)
Feutre de presse.
Publication
Application
Priority
DE 4002761 A 19900131
Abstract (en)
[origin: EP0440076A2] A press felt for the press area of a paper machine has a supporting material web made of one or more woven fabrics or knitted fabrics and a fibre layer applied at least to the paper side and associated with the supporting material web, the surface of which forms the paper contact side and in which a permeable layer is arranged between the paper contact side and supporting material web. To improve the dewatering power, the permeable layer is designed as a barrier layer (7) having a surface covering of 45% to 85%, the barrier layer (7) having elongated passage openings (9) aligned in the transverse direction. <IMAGE>
IPC 1-7
IPC 8 full level
D21F 7/08 (2006.01)
CPC (source: EP)
D21F 7/083 (2013.01)
Citation (examination)
- US 4482601 A 19841113 - HARTIGAN JR RICHARD J [US]
- US 4657806 A 19870414 - DUTT WILLIAM H [US]
- US 4529643 A 19850716 - LUNDSTROEM KRISTIAN [FI]
- US 4500588 A 19850219 - LUNDSTROEM KRISTIAN [FI]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0440076 A2 19910807; EP 0440076 A3 19911016; EP 0440076 B1 19940629; AT E107980 T1 19940715; CA 2034956 A1 19910801; CA 2034956 C 20010821; DE 4002761 A1 19910801; DE 4002761 C2 19911128; DE 59102041 D1 19940804; DK 0440076 T3 19941031; ES 2058943 T3 19941101; FI 910402 A0 19910128; FI 910402 A 19910801; FI 93239 B 19941130; FI 93239 C 19950310
DOCDB simple family (application)
EP 91100783 A 19910123; AT 91100783 T 19910123; CA 2034956 A 19910130; DE 4002761 A 19900131; DE 59102041 T 19910123; DK 91100783 T 19910123; ES 91100783 T 19910123; FI 910402 A 19910128