Differential pressure molding apparatus employing releasable res

Details Differential pressure molding apparatus employing releasable res Differential pressure molding apparatus employing releasable res

1985-06-14

1986-07-15

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Sets of male-female press molds

425388, A01J 2100

Patent

active

046003762

ABSTRACT:
A differential pressure molding apparatus comprising plural female mold cavity members and mating plug assist members, vacuum and pressure means for forming sheet material and clamping means to clamp said material, said clamping means having removable insert rings held in place by o-rings.

REFERENCES:
patent: Re27435 (1972-07-01), Shelby
patent: 3161915 (1965-12-01), Thiel
patent: 3346923 (1967-10-01), Brown et al.
patent: 3483284 (1969-12-01), Shelby
patent: 4464329 (1984-08-01), Whiteside et al.

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