Elongated gap press with adjustable length

Details Elongated gap press with adjustable length Elongated gap press with adjustable length

1997-03-31

1998-05-19

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162361, 100153, D21F 302

Patent

active

057530840

ABSTRACT:
This invention pertains to an elongated gap or extended nip press comprised of two pressing elements whose pressing areas are pressed against each other, wherein each of the press areas is formed of a band-shaped jacket element, with the jacket element moving around carriers and being supported by at least one support element, wherein a change of the length of the press gap or nip and/or of the pressure distribution or pattern in the press gap is accomplished in that the portions of the press elements that form the support surfaces and/or that the support elements of at least one of the pressing elements are displaceable in or against the direction of rotation of the respective jacket element.

REFERENCES:
patent: Re31923 (1985-06-01), Justus et al.
patent: 4328744 (1982-05-01), Pav et al.
patent: 4425190 (1984-01-01), Cronin
patent: 4556454 (1985-12-01), Dahl et al.
patent: 4568423 (1986-02-01), Laapotti
patent: 4570314 (1986-02-01), Holik et al.
patent: 4705602 (1987-11-01), Dahl
patent: 4713147 (1987-12-01), Saarinen
patent: 4852229 (1989-08-01), Crouse
patent: 4973384 (1990-11-01), Crouse et al.

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