Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Reexamination Certificate
2005-03-08
2005-03-08
Chin, Peter (Department: 1731)
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
C162S205000, C162S306000, C162S358100, C162S358200, C162S358300, C162S358400, C162S358500, C162S359100, C162S360200, C162S361000
Reexamination Certificate
active
06863776
ABSTRACT:
Press section and process for dewatering a fibrous material web that includes a plurality of rolls arranged to form at least three nips and at least one endlessly circulating dewatering belt associated with each nip. Each at least one endlessly circulating dewatering belt is structured and arranged to guide the fibrous material web through its respective nip and to receive water squeezed out of the fibrous material web in the respective nip. The plurality of rolls include at least one press roll having a smooth surface arranged to contact a surface of the fibrous material web and an endlessly circulating, smooth transfer belt is structured and arranged to contact a surface of the fibrous material web opposite the surface contacting the smooth surface of the at least one press roll and to support the fibrous material web through at least one of the at least three nips.
REFERENCES:
patent: 5468349 (1995-11-01), Schiel
patent: 5650049 (1997-07-01), Kivimaa et al.
patent: 5662778 (1997-09-01), Laapotti
patent: 5681431 (1997-10-01), Steiner
patent: 5762761 (1998-06-01), Kivimaa et al.
patent: 5766422 (1998-06-01), Crouse
patent: 5876565 (1999-03-01), Laapotti
patent: 19633422 (1998-02-01), None
patent: 0705937 (1996-04-01), None
Patent Abstracts of Japan vol. 2000, No. 18, Jun. 5, 2001, published Jun. 1, 1989 of Japanese Publication No. 01139890.
Augscheller Thomas
Begemann Ulrich
Cedra Ingolf
Kleiser Georg
Chin Peter
Greenblum & Bernstein P.L.C.
Voith Paper Patent GmbH
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