Female mold including decorating insert for differential pressur

Details Female mold including decorating insert for differential pressur Female mold including decorating insert for differential pressur

1992-07-27

1994-03-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

4253871, 425398, B29C 5130

Patent

active

052958043

ABSTRACT:
Apparatus for differential pressure forming an article in a thermoplastic sheet including a female mold cavity mounting a one piece, ring-shaped detachable mold insert for forming at least a portion of the article. The insert is formed by rolling a crescent shaped sheet, having opposite ends into a truncated cone with opposite ends thereof in abutting relation, inserting the truncated cone shaped mold insert into a mold cavity, and applying endwise force to the ends of the mold insert to detachably secure the mold in a mold body.

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