Press felt

Details Press felt Press felt

2006-10-10

2006-10-10

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

C162S900000, C162S903000, C442S207000, C139S3830AA

Reexamination Certificate

active

07118651

ABSTRACT:
A press felt comprises a base fabric, optionally with a batt of fibrous material needled thereto. The base fabric is woven endless, having upper and lower layers of weft yarns and first and second sets of warp yarns. The first set of warp yarns interweaves with at least the upper layer of wefts and the second set of warp yarns interweaves with at least the lower set of wefts. At least some of the first set of warps at least occasionally interweave with the lower wefts and at least some of the second set of warps at least occasionally interweaves with the upper wefts.

REFERENCES:
patent: 6077397 (2000-06-01), Shipley
patent: 6883556 (2005-04-01), Fahrer et al.
patent: 6896009 (2005-05-01), Ward
patent: 2003/0217782 (2003-11-01), Nagura et al.
patent: 2004/0182465 (2004-09-01), Ward
patent: 0 590 927 (1994-04-01), None
patent: 2003-342889 (2003-03-01), None
patent: WO 80/01086 (1980-05-01), None
patent: WO 93/01350 (1993-01-01), None
European Search Report Appl. No.: EP 04 10 1203; Date of Completion of Search: Sep. 24, 2004.

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