Nickel blow mold and holder defining heat transfer passages...

Details Nickel blow mold and holder defining heat transfer passages... Nickel blow mold and holder defining heat transfer passages...

2005-01-18

2005-01-18

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For press shaping surface

C249S079000, C249S102000, C425S522000, C425S526000

Reexamination Certificate

active

06843646

ABSTRACT:
An air cooled or heated blow mold is shown having a mold cavity shell and a mold holder. The mold cavity shell is made by a process of nickel vapour deposition and so requires no hand finishing or polishing. The mold cavity shell has a cavity portion with a front face defining a cavity in the shape of a portion of a product to be molded. The mold holder is located rearwardly of the mold cavity shell and defines an inner wall spaced from the mold cavity shell cavity portion to define a heat transfer passage between the inner wall and the cavity portion. In use, air is passed through the heat transfer passage to transfer heat to or from the mold cavity shell.

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Patent Abstracts of Japan, 11 300 748 published Nov. 2, 1999.

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