Arrangement for a wire section of a paper or board machine

Details Arrangement for a wire section of a paper or board machine Arrangement for a wire section of a paper or board machine

2007-11-27

2007-11-27

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Apparatus

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

C162S203000, C162S217000, C162S300000, C162S303000, C162S363000, C162S368000, C162S370000

Reexamination Certificate

active

10525595

ABSTRACT:
A web is formed between two wire loops (13, 14), in a wire section of a paper or board machine, in connection with which dewatering elements (12, 17, 15, 28) are placed and in which water is drained from a stock suspension from between the two wires (13, 14). In the region of a twin-wire zone, a suction roll (15) is placed within one wire loop and a suction box (16) having a curved surface is situated in opposed relationship with the suction roll (15) on the wire loop. After the suction box (16), the web is guided, due to the effect of a vacuum of the suction roll (15), forwards on the surface of the wire loop of the suction roll (15).

REFERENCES:
patent: 2664792 (1954-01-01), Cook
patent: 3150037 (1964-09-01), Lee
patent: 4406739 (1983-09-01), Kankaanpaa
patent: 28 08 939 (1979-09-01), None
patent: 106730 (2001-03-01), None
patent: WO 98/29600 (1998-07-01), None
patent: WO 01/31120 (2001-05-01), None
patent: WO 2004/020734 (2004-03-01), None
International Preliminary Examination Report Issued in PCT/FI2003/000622, Oct. 28, 2004.
International Search Report Issued in PCT/FI03/00622, Oct. 28, 2003.

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