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1. (WO2003054292) PERMEABLE MEMBRANE

Pub. No.:    WO/2003/054292    International Application No.:    PCT/EP2002/014656
Publication Date: Jul 3, 2003 International Filing Date: Dec 20, 2002
IPC: D21F 1/00
D21F 3/02
Applicants: VOITH FABRICS HEIDENHEIM GMBH & CO. KG
BECK, David
Inventors: BECK, David
Title: PERMEABLE MEMBRANE
Abstract:
A permeable membrane for use on displacement presses of the type described in US 6190,506, or for converting air presses, such as those described in US 6,454,905, WO 99/23301 and WO 99/23296, into a displacement press. The membrane 2 comprising a laminate structure having at least one permeable wear layer 12, 14 and at least one semi-permeable perforated sheet layer 4.