Metal mold for blow molding

Details Metal mold for blow molding Metal mold for blow molding

2006-05-29

2010-11-02

Davis, Robert B (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

C425S533000

Reexamination Certificate

active

07824174

ABSTRACT:
A metal mold for blow molding which may prevent a mold biting while maintaining a blowing performance and may mold a thermoplastic-elastomer article having a stable shape. In a blow molding metal mold provided with an annular loosely surrounding part for loosely surrounding an end part of a parison, a clearance between an outer peripheral surface of the end part and an inner peripheral surface of the loosely surrounding part at a parting line of the metal mold is larger than a clearance at the other parts than the parting line.

REFERENCES:
patent: 4724116 (1988-02-01), Aoki
patent: 4852891 (1989-08-01), Sugiura et al.
patent: 5236656 (1993-08-01), Nakajima
patent: 2005/0046078 (2005-03-01), Sueoka et al.
patent: 5-2871 (1993-01-01), None
patent: 2003-191317 (2003-07-01), None

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