Apparatus and process

Details Apparatus and process Apparatus and process

1974-03-14

1976-03-02

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including shaping means comprising fluid pressure contacting...

425392, 264 94, 249173, B29D 2301, B29D 2303

Patent

active

039415465

ABSTRACT:
In the apparatus for preparing heat-shrinkable plastic tubing by radially expanding lengths of plastic tubing to a larger diameter within a rigid cylinder by heating the cylinder externally and pressurizing the interior of the extruded plastic tubing with gas to cause the tubing to radially expand against the interior walls of the rigid cylinder,

REFERENCES:
patent: 1762440 (1930-06-01), Howe
patent: 3257689 (1966-06-01), Weyer
patent: 3296344 (1967-01-01), Timmerman
patent: 3454257 (1969-07-01), Dupuis
patent: 3600488 (1971-08-01), Yazawa
patent: 3611516 (1971-10-01), O'Conner et al.
patent: 3647340 (1972-03-01), Sakurai et al.
patent: 3679167 (1972-07-01), Jupiter et al.
patent: 3752630 (1973-08-01), Takagi et al.
patent: 3836111 (1974-09-01), Binder

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