Gas injection moulding method and apparatus

Details Gas injection moulding method and apparatus Gas injection moulding method and apparatus

2007-02-20

2007-02-20

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

C264S572000

Reexamination Certificate

active

11055949

ABSTRACT:
A gas injection moulding method comprising injecting a melt into a mould and injecting gas into the melt to form a gas cavity in the melt wherein the melt is cooled by use of injection gas cooled to below the external ambient air temperature and/or by a continuous flow of injection gas through the mould.

REFERENCES:
patent: 5728325 (1998-03-01), Blankenburg
patent: 6709626 (2004-03-01), Eckardt et al.
patent: 6713014 (2004-03-01), Eckardt
patent: 4219915 (1993-12-01), None

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