Vacuum hot platen press with airtight covers in sliding contact

Details Vacuum hot platen press with airtight covers in sliding contact Vacuum hot platen press with airtight covers in sliding contact

1993-06-29

1995-05-02

Gerrity, Stephen F.

Presses

With additional treatment of material

Separating materials

100 93P, 100194, 156382, 1565831, 425338, 4254051, B30B 1534, B30B 702

Patent

active

054109566

ABSTRACT:
A vacuum hot platen press for pressing laminated boards includes a seal cover assembly for keeping the internal process chamber airtight. The seal cover assembly is fixed in an airtight manner to a cylinder plate located below the platens, through which the pressure cylinders extend in an airtight manner. The upper end of the cover assembly is in sliding airtight contact with the tensile strength members of the press. The sliding contact prevents elongation of the tensile members under pressing force, or vacuum forces on the cover assembly, from causing distortion or breakage.

REFERENCES:
patent: 2627289 (1953-02-01), Berthelsen
patent: 2792678 (1957-05-01), Baldwin, Jr. et al.
patent: 4857135 (1989-08-01), Copp

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