Apparatus for controlling plastic material distribution in manuf

Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Including means to prepare parison

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425535, B29D 2303

Patent

active

041283830

ABSTRACT:
An improved apparatus which allows for uniform axial stretch rate and careful temperature control in the production of biaxially oriented plastic containers having uniform wall thickness and good clarity.

REFERENCES:
patent: 3222725 (1965-12-01), Smith
patent: 3342914 (1967-09-01), Edwards
patent: 3587133 (1971-06-01), Valyi
patent: 4047869 (1977-09-01), Mulvany, Jr.

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