Method for cooling plastic injection mold dies

Details Method for cooling plastic injection mold dies Method for cooling plastic injection mold dies

1978-04-03

1979-04-24

Flint, Jr., J. Howard

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

264328, 249 79, 249 63, 249141, 425812, B29F 108

Patent

active

041512430

ABSTRACT:
A method and apparatus for forming a continuous cooling liquid passageway through two separable injection mold dies when they are closed with a supply system flowing cooling liquid at a less than atmospheric pressure at least at the junction of the dies through the passageway only when the dies are closed and air when the dies are opened and the passageway is discontinuous.

REFERENCES:
patent: 2976571 (1961-03-01), Moslo
patent: 3108339 (1963-10-01), Bucy
patent: 3555620 (1971-01-01), Bucy
patent: 3978910 (1976-09-01), Gladwin
patent: 4091069 (1978-05-01), Allen

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