Apparatus for blow molding

Details Apparatus for blow molding Apparatus for blow molding

1986-11-17

1988-08-02

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

Including means to prepare parison

264531, 264534, 4254501, 4254519, B29C 4904

Patent

active

047611308

ABSTRACT:
Expanding the parison while the mold side parts defining the walls of the blow-molding chamber, one part per wall, are moved to mold closed positions causes flash to be pinched between each mold part and provides good wall thickness near the edges of the final product.

REFERENCES:
patent: 3050773 (1962-08-01), Hagen
patent: 3452391 (1969-07-01), Langecker
patent: 3564660 (1971-02-01), Darnell
patent: 3672799 (1972-06-01), Liebertz et al.
patent: 3949034 (1976-04-01), Uhlig
patent: 4086314 (1978-04-01), Lampart et al.
patent: 4129635 (1978-12-01), Yasukie et al.
patent: 4510116 (1985-04-01), Peters et al.
patent: 4666389 (1987-05-01), Relis et al.

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