Spiral construction of grooved long nip press

Details Spiral construction of grooved long nip press Spiral construction of grooved long nip press

1991-11-08

1992-12-15

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156187, 156195, 15624415, 156267, 156494, 1623584, B29C 5378, B29C 6310

Patent

active

051713896

ABSTRACT:
A grooved, void-volume belt for use on a long nip press for dewatering a fibrous web may be manufactured by winding a grooved strip or ribbon of polymeric material onto a standard LNP belt in the form of a closed helix, and by attaching the grooved strip to the belt by suitable means. The strip may be extruded from a polymeric material, such as polyurethane, and is provided with at least one longitudinal groove. The method enables one to manufacture a grooved, void-volume belt without the prior necessity of coating both sides of a base fabric with a polymeric material, and of cutting grooves in the coating on the outer side of the belt.

REFERENCES:
patent: 3273600 (1966-09-01), Swan
patent: 3280851 (1966-10-01), Habdas
patent: 3291288 (1966-12-01), Haustovich
patent: 3373067 (1968-03-01), Hagstrom
patent: 4494947 (1985-01-01), Miranti et al.
patent: 4552620 (1985-11-01), Adams
patent: 4643916 (1987-02-01), Kiuchi
patent: 4978428 (1990-12-01), Cronin et al.
patent: 4981721 (1991-01-01), Krenkel et al.

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