Apparatus for the preparation of hollow plastic articles

Details Apparatus for the preparation of hollow plastic articles Apparatus for the preparation of hollow plastic articles

1977-06-27

1978-09-26

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

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

With heating or cooling means

425530, 425533, B29D 2303

Patent

active

041166060

ABSTRACT:
Method and apparatus for the preparation of hollow plastic articles wherein improved temperature control of the parison is obtained by altering the heat content of a parison by a first, temperature controlled mold and core, transferring the parison to a second, temperature controlled mold, and substantially equalizing the temperature distribution of the parison by heat exchange with the second mold.

REFERENCES:
patent: 3412186 (1968-11-01), Piotrowski
patent: 3776991 (1973-12-01), Marcus
patent: 3882213 (1975-05-01), Uhlig
patent: 3944643 (1976-03-01), Sato et al.
patent: 3963399 (1976-06-01), Zavasnik

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