Injection blow molding apparatus for hollow article having openi

Details Injection blow molding apparatus for hollow article having openi Injection blow molding apparatus for hollow article having openi

1974-11-11

1976-06-15

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425387B, 425DIG209, B29D 2302, B29D 2303

Patent

active

039633985

ABSTRACT:
Injection blow molding method and apparatus for a hollow article having openings at both ends, in which said method comprises the steps of: forming a parison having openings at both ends by injecting plastic material into the cavity of an injection mold which is provided with a stationary core member and a movable core member as disposed on the same line, shifting said parison from said injection mold to said blow mold together with said movable core member, closing the remaining open end of said parison by a closing core member, and blowing said parison within said blow mold to produce a molded article having openings at both ends.

REFERENCES:
patent: 2929103 (1960-03-01), Deist et al.
patent: 3268641 (1966-08-01), King
patent: 3597517 (1971-08-01), Smith
patent: 3838961 (1974-10-01), Yogosawa et al.
patent: 3855380 (1974-12-01), Gordon et al.

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