Composite roll covering for expressing machines

Details Composite roll covering for expressing machines Composite roll covering for expressing machines

1985-07-08

1987-10-06

Feldman, Peter

Presses

Methods

With separation from material of liquid expressed

100118, 100121, 100153, 210400, 210783, B30B 504, B30B 1300

Patent

active

046975110

ABSTRACT:
In a dewatering machine for dewatering wet solids in which an elastomeric covered roll applies pressure upon one or more dewatering valves, the improvement whereby the elastomeric roll covering is a multi-layer covering having a graded hardness across the covering layer. A typical covered roll of such a machine is one in which a soft rubber-like material adheres to the surface of the roll and is covered by a harder outer covering.

REFERENCES:
patent: 872489 (1907-12-01), Whitney
patent: 3592134 (1971-07-01), Patterson, Jr.
patent: 3646652 (1972-03-01), Heiligenthal et al.
patent: 3711912 (1973-01-01), Teske et al.
patent: 4475453 (1984-10-01), Davis
patent: 4559106 (1985-12-01), Skytta et al.
European Search Report dated Sep. 22, 1986.

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