Apparatus for preparing hollow plastic article

Details Apparatus for preparing hollow plastic article Apparatus for preparing hollow plastic article

1992-11-23

1993-08-31

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

4254501, 425541, 425812, B29C 4962

Patent

active

052404021

ABSTRACT:
Apparatus includes a blow mold for forming a hollow plastic article forming a parison including at least reciprocable mold portions affixed to platens, wherein the mold portions are relatively movable from an open to a closed position including a spacing bar contacting the platens in the mold closed position operative to space apart the mold portions in the closed position thereof to form a controlled vent therebetween.

REFERENCES:
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patent: 4140468 (1979-02-01), Duga
patent: 4421472 (1983-12-01), Martin, Jr.
patent: 4489771 (1984-12-01), Takeshima et al.
patent: 4648831 (1987-03-01), Johnson
patent: 4690633 (1987-09-01), Schad et al.
patent: 4793960 (1988-12-01), Schad et al.
patent: 4995445 (1991-02-01), Shigyo

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