Apparatus for die forming thermoplastic sheet material

Details Apparatus for die forming thermoplastic sheet material Apparatus for die forming thermoplastic sheet material

1989-06-08

1991-05-14

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

Coacting shaping surfaces

264310, 264322, 425409, 425DIG48, B29C 5122

Patent

active

050151690

ABSTRACT:
An upper contoured die which mates with a lower contoured die is rotated relative to and against the lower die to progressively squeeze and deform a softened thermoplastic sheet. The two dies create sharp detail on both surfaces of the deformed sheet without tearing the sheet.

REFERENCES:
patent: 2613398 (1952-10-01), Crowell
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patent: 4043729 (1977-08-01), Paracchi
patent: 4147486 (1979-04-01), Jahnle
patent: 4221556 (1980-09-01), Kiss
patent: 4269587 (1981-05-01), Tranter
patent: 4648934 (1987-03-01), Kiss
patent: 4818460 (1989-04-01), Nied

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