Apparatus for blow molding

Details Apparatus for blow molding Apparatus for blow molding

1980-05-09

1981-09-22

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

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

Including means to close or lock blow mold

4254515, 4254516, B29C 1707

Patent

active

042907454

ABSTRACT:
Method and apparatus for blow molding plastic articles from preformed parisons by reheating the parisons and then stretching and blowing them. The parisons are conveyed in series to a plurality of fixed heating stations at which the parisons are fixedly positioned for heating, the parisons being rotated for uniform heating. The heating is enhanced by blowing air under pressure through a tunnel enclosing the successive heating stations. Finally, the parison is stretched and blown at a blow station in a blow mold of unique design.

REFERENCES:
patent: 2543503 (1951-02-01), Lester et al.
patent: 3685943 (1972-08-01), Fischer
patent: 4120636 (1978-10-01), Appel et al.

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