Mold vents

Details Mold vents Mold vents

1997-11-10

1999-07-13

Mackey, James P.

Static molds

Container-type molding device

Including auxiliary port for transmission of fluid, i.e.,...

425 281, 425812, B29C 3310

Patent

active

059222379

ABSTRACT:
A vent for a mold comprising a valve closure member and integrally formed spring opening mechanism for opening the valve closure member such that when mounted in an air release vent the valve closure member may open or close said vent.

REFERENCES:
patent: 2290510 (1942-07-01), Talalay
patent: 2865052 (1958-12-01), Wilcox
patent: 3230590 (1966-01-01), Schaible et al.
patent: 3377662 (1968-04-01), Fukushima
patent: 4347212 (1982-08-01), Carter
patent: 4351789 (1982-09-01), Sidles et al.
patent: 4492554 (1985-01-01), Carter
patent: 4708609 (1987-11-01), Yoda et al.
Patent Abstracts of Japan, vol. 009, No. 164 (M-395), Jul. 10, 1985 & JP 60 040218 (Mar. 02, 1985).

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