Apparatus for forming expanded panels

Details Apparatus for forming expanded panels Apparatus for forming expanded panels

1978-07-05

1979-08-14

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

425411, B29C 100, B29C 1700, B30B 1500

Patent

active

041643895

ABSTRACT:
In order to make large panels of expanded thermoformable material in a process in which a blank of the material is placed between two heated mold plates, the blank adhered to the plates by hot tack adhesion; the plates separated and the expanded material cooled, while maintaining commercial tolerances, the mold plates are supported on elongated mounting studs.

REFERENCES:
patent: 3597796 (1971-08-01), Ehrlich
patent: 3640660 (1972-02-01), De Mets
patent: 3746488 (1973-07-01), Messenger
patent: 3919378 (1975-11-01), Sinarook
patent: 3919379 (1975-11-01), Sinarook
patent: 3919380 (1975-11-01), Sinarook et al.
patent: 3919381 (1975-11-01), Sinarook
patent: 3919445 (1975-11-01), Sinarook
patent: 3969051 (1976-07-01), Hovila
patent: 4017239 (1977-04-01), O'Connell et al.

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