Dual external suction boxes for suction roll for a paper machine

Details Dual external suction boxes for suction roll for a paper machine Dual external suction boxes for suction roll for a paper machine

1998-07-02

1999-10-19

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162368, 162372, D21F 148, D21F 310

Patent

active

059683198

ABSTRACT:
Suction roll for a paper machine for dewatering a material web guided on transport belt in a web run direction. The suction roll includes a roll jacket over which the transport belt is guided, a first, external suction box that partially encompasses the suction roll and that is adapted to create a vacuum to suction the material web. The first suction box is adapted to suction at least one gusset formed between the roll jacket and the transport belt. The suction roll further includes a second suction box positioned to border the first suction box.

REFERENCES:
patent: 3057402 (1962-10-01), Webster
patent: 3291680 (1966-12-01), Justus et al.
patent: 4172759 (1979-10-01), Kankaanpaa
patent: 4176005 (1979-11-01), Bubik et al.
patent: 4406739 (1983-09-01), Kankaanpaa
patent: 4923568 (1990-05-01), Hietikko et al.

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