Arrangement for controlling the web in a press section of a...

Details Arrangement for controlling the web in a press section of a... Arrangement for controlling the web in a press section of a...

2007-11-13

2007-11-13

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Apparatus

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

C162S363000, C162S374000

Reexamination Certificate

active

10863853

ABSTRACT:
An arrangement is disclosed for controlling the web in a press section of a paper of board machine wherein the press section includes a press nip and two fabrics arranged to travel through it. In addition, the press section includes a suction roll with a suction apparatus fitted after the press nip. The suction apparatus includes at least one suction case, which is arranged in a closing throat and/or an opening throat formed by one of the fabrics and the suction roll. The suction case is also arranged before and/or after the suction roll in the edge of the fabric in order to create a suction effect in a narrow edge area of the web.

REFERENCES:
patent: 4081320 (1978-03-01), Wahren et al.
patent: 4191612 (1980-03-01), Araoka
patent: 5328569 (1994-07-01), Cronin
patent: 5972170 (1999-10-01), Hund et al.
patent: 5989393 (1999-11-01), Kivimaa et al.
patent: 6375800 (2002-04-01), Steiner et al.
patent: 6666954 (2003-12-01), Kotitschke et al.
patent: 6730192 (2004-05-01), Laapotti
patent: 6863776 (2005-03-01), Begemann et al.
patent: 0559629 (1993-09-01), None
patent: 1 101 864 (2001-05-01), None

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