Positioning mechanism for use in mold structure

Details Positioning mechanism for use in mold structure Positioning mechanism for use in mold structure

2011-08-30

2011-08-30

Davis, Robert B (Department: 1743)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to form or reshape preform

C425S125000

Reexamination Certificate

active

08007265

ABSTRACT:
A positioning mechanism (24) for use in a mold structure (100) to position a film (30) within the mold structure is provided. The mold structure includes a core mold portion (10) and a cavity mold portion (20) mating with the core mold portion. The core mold portion includes a core plate (12) and a core insert (14) formed on the plate. The cavity mold portion includes a positioning mechanism having a moveable cavity insert (242) and an elastic member (244) for outwardly biasing the cavity insert.

REFERENCES:
patent: 3971841 (1976-07-01), Rubinstein
patent: 4865794 (1989-09-01), Nakajima et al.
patent: 5779958 (1998-07-01), Nishihara et al.
patent: 5783134 (1998-07-01), Yabe et al.
patent: 6554598 (2003-04-01), Tsuruta
patent: 101028730 (2007-09-01), None
patent: 09323326 (1997-12-01), None
patent: 2004249653 (2004-09-01), None
Partial machine translation of JP 09-323326 A dated Dec. 1997 obtained from the JPO website.

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