Method and apparatus for blow molding

Details Method and apparatus for blow molding Method and apparatus for blow molding

2006-11-07

2006-11-07

Davis, Robert B. (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

C249S079000, C264S237000, C425S526000

Reexamination Certificate

active

07132076

ABSTRACT:
An apparatus and method for blow molding an article having a concave base wherein a mold has a base component comprising a molding surface for forming at least a portion of the concave base and a path for conduction of heat transfer fluid through channels within the base component. Improved heat transfer is effected in the base component by locating the channels at a plurality of distinct depths therein.

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patent: 6428302 (2002-08-01), Tsau
patent: 6444159 (2002-09-01), Petre
patent: 7025584 (2006-04-01), Tsau
patent: 19925756 (2000-12-01), None

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