Refrigerant cooled plastic molding, method and apparatus

Details Refrigerant cooled plastic molding, method and apparatus Refrigerant cooled plastic molding, method and apparatus

1985-03-13

1987-09-01

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

62218, 62220, 62292, 62504, 62DIG21, 26432814, 425144, 425169, 425407, 425458, B29C 3504, B29C 4572, B29C 4576

Patent

active

046907890

ABSTRACT:
Method and Apparatus for cooling a mold having plural parallel cooling passages therethrough, the mold having flow control means at the inlet and sight glasses at the outlets and being arranged for overfeed so that liquid is always present in all cooling passages to avoid hot spots in the mold.

REFERENCES:
patent: 3127753 (1964-04-01), Tinnerman
patent: 3303663 (1967-02-01), Miller et al.
patent: 3352124 (1967-11-01), Watkins
patent: 3353367 (1967-11-01), Garland et al.
patent: 3400552 (1968-09-01), Johnson et al.
patent: 3583467 (1971-06-01), Bennett et al.
patent: 3753356 (1975-08-01), Kramer
patent: 4123919 (1978-11-01), Fehlhaber
patent: 4508670 (1985-04-01), Janke
patent: 4545210 (1985-10-01), Lord

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