Blow molding apparatus

Details Blow molding apparatus Blow molding apparatus

1989-07-19

1990-08-21

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

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

Including blowing medium supply means

264525, 264526, B29C 4960, B29C 4962

Patent

active

049501534

ABSTRACT:
A blow molding machine having a mold cavity, a blow needle bore opening into the cavity with a blow needle in the bore, a vacuum source for drawing blow air from a molded article and an exhaust passage extending from the blow needle bore to the source for reducing pressure within the blown article.

REFERENCES:
patent: 3089185 (1963-05-01), Di Settembrini
patent: 3257485 (1966-06-01), Scott, Jr.
patent: 3423495 (1969-01-01), Bachner
patent: 3450805 (1969-06-01), Chesser
patent: 3571848 (1971-03-01), Szajna
patent: 3679785 (1972-07-01), Dike
patent: 3873661 (1975-03-01), Kontz
patent: 4087503 (1978-05-01), Peters
patent: 4367187 (1983-01-01), Fukushima et al.
patent: 4401423 (1983-08-01), Bellehache et al.
patent: 4617077 (1986-10-01), Giese et al.

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