Arrangement for controlling the edge of pulp mass in a web...

Details Arrangement for controlling the edge of pulp mass in a web... Arrangement for controlling the edge of pulp mass in a web...

2006-11-14

2006-11-14

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Apparatus

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

C162S203000, C162S208000, C162S259000, C162S301000, C162S308000, C162S353000, C277S906000

Reexamination Certificate

active

07135092

ABSTRACT:
The invention relates to an arrangement for controlling the edge of pulp mass in a web former, the web former comprising a space formed by two wires or the like, into which space the pulp mass is fed. The wires or the like are supported on a chamber units, which each time include at least one chamber for receiving the water removed from the pulp mass. In conjunction with the side edge of the said web former are arranged pulp mass edge control means, which include an edge sealing part. The edge sealing part extends, in the lateral direction of the web former, by a distance between the chamber units in such a way that it will prevent the pulp mass edge from passing and/or spreading in the lateral direction of the web former into the area of the said edge of the web former. The invention also relates to a method for controlling the pulp mass edge in a web former.

REFERENCES:
patent: 4124441 (1978-11-01), Nykopp
patent: 4802955 (1989-02-01), Koski
patent: 5795442 (1998-08-01), Boyd et al.
patent: 5851356 (1998-12-01), Banning et al.
patent: 6136153 (2000-10-01), Rokman et al.
patent: 6368463 (2002-04-01), Juutinen
patent: WO 00/43588 (2000-07-01), None
Finnish Search Report for Finnish Priority Appl. No. 20011078 dated Jan. 14, 2002.
International Search Report for PCT/FI02/00413 dated Aug. 21, 2002.

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