Press felt for papermaking and manufacturing method

Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...

Reexamination Certificate

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Details

C162S900000, C442S271000, C442S318000

Reexamination Certificate

active

07105077

ABSTRACT:
A press felt for papermaking comprises a base body, a fibrous assembly, and a three-dimensional knitted fabric within the interior of the felt. The base body and the knitted fabric may be in contact, or, for improved adhesion between the base body and the knitted fabric, a fibrous assembly may be disposed between the base body and the knitted fabric. Excellent compression recoverability and sustainability may be obtained.

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patent: 4806413 (1989-02-01), Penven
patent: 4856562 (1989-08-01), Dufour
patent: 5360656 (1994-11-01), Rexfelt et al.
patent: 5945357 (1999-08-01), Quigley
patent: 6479414 (2002-11-01), Hauer
patent: 6648147 (2003-11-01), Lydon et al.
patent: 6811849 (2004-11-01), Best
patent: 1 045 066 (2000-04-01), None
patent: 2 727 442 (1994-11-01), None
patent: 2 727 442 (1996-05-01), None
patent: 02-229247 (1990-09-01), None
patent: 2514509 (1996-08-01), None
patent: 504167-2001 (2001-03-01), None
patent: 2001-234456 (2001-08-01), None

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