Temperature controlled core rod

Details Temperature controlled core rod Temperature controlled core rod

1975-10-31

1976-12-21

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

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

Including shaping means comprising fluid pressure contacting...

425DIG204, 425DIG208, B29C 1707

Patent

active

039985776

ABSTRACT:
A core rod for an injection molding machine having an axially disposed blow air conduit connected to a valve at the free end of the core rod, and an annular passageway around the air conduit for flow of a temperature control fluid. The temperature control fluid is preferably channeled in a two-pass or alternatively in a double-spiral flow pattern. This core rod is particularly suited for use in biaxial orientation blow molding wherein rapid and accurate temperature control of the parison is required.

REFERENCES:
patent: 3114596 (1963-12-01), Wechsler et al.
patent: 3116877 (1964-01-01), Moslo
patent: 3740180 (1973-06-01), Sidur
patent: 3796531 (1974-03-01), Bowers
patent: 3827214 (1974-08-01), Naumann
patent: 3836305 (1974-09-01), Grazine
patent: 3923441 (1975-12-01), Farrell

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