Mold apparatus for forming shaped plastic shells

Details Mold apparatus for forming shaped plastic shells Mold apparatus for forming shaped plastic shells

1989-03-30

1990-01-02

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Temperature control

264301, 264302, 425185, B29C 3500, B29C 4118

Patent

active

048909955

ABSTRACT:
Apparatus for manufacturing a multitude of thin walled hollow plastic shells for parts such as automobile door panels, controls and instrument panels from dry thermoplastic powders includes a mold heating chamber with a tube sheet heating assembly operative to provide a hot air flow pattern with a profile which matches the outer profile of one of a plurality of molds that are selectively placed in the mold heating chamber thereby to uniformly heat a casting surface of the mold by an energy efficient process.

REFERENCES:
patent: 3315016 (1967-04-01), Wersosky et al.
patent: 3590435 (1971-07-01), Dunham
patent: 3686629 (1972-08-01), Gaudreau et al.
patent: 3728429 (1973-04-01), Colby et al.
patent: 4217325 (1980-08-01), Colby
patent: 4338068 (1982-07-01), Suh et al.
patent: 4389177 (1983-06-01), Colby
patent: 4621995 (1986-11-01), Wersosky
patent: 4623503 (1986-11-01), Anestis et al.
patent: 4683098 (1987-07-01), Belleville et al.

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