Method and apparatus for blow molding plastic

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

1975-02-14

1977-06-07

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Serially arranged with preform reshaping means

425326B, 425DIG206, 425DIG212, B29D 2304

Patent

active

040280349

ABSTRACT:
The invention disclosed is for a method and apparatus for blow molding foam walled plastic using a quadrisectional mold. A parison of foamed plastic may be blow molded to assume the contour of the closed mold, after which the molded shape is severed into two portions and ejected. Desirably, cellular plastic is blow molded to form hot drink cups.

REFERENCES:
patent: 3217072 (1965-11-01), Schaich
patent: 3225127 (1965-12-01), Scott
patent: 3456290 (1969-07-01), Ruekberg
patent: 3457590 (1969-07-01), Dittmann
patent: 3733384 (1973-05-01), Gerlovich

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