Compression molding apparatus

Details Compression molding apparatus Compression molding apparatus

1989-02-14

1990-06-12

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Coacting shaping surfaces

425395, 425406, 425408, 425806, B29C 4302

Patent

active

049328573

ABSTRACT:
An apparatus for compression-molding plastic without producing flashes. The apparartus basically consists of a pair of dies complementary to each other, one being stationary and the other being movable so as to be capable of engaging the stationary one. The apparatus has substantially no clearance at a pinch-off section formed by the engaging edge portions of the two dies, and at least one of the engaging edge portions is made of plastic. In one embodiment of the invention both the engaging edge portions are made of plastic.

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patent: 3529321 (1970-09-01), Culand
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patent: 4488862 (1984-12-01), Epel et al.
patent: 4579937 (1986-04-01), Masuda et al.
patent: 4751029 (1988-06-01), Swanson
patent: 4775312 (1988-10-01), Werz et al.

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