Die cast vent block

Details Die cast vent block Die cast vent block

1994-09-26

1996-12-24

Batten, Jr., J. Reed

Metal founding

Means to apply vacuum directly to work or to hold or...

164305, B22D 1714, B22D 1720

Patent

active

055865968

ABSTRACT:
A die casting vacuum valve system with mating vent blocks which include lands and grooves defining a serpentine path enabling overflow of molten material. The path restricts, stops and prevents further flow of the molten material in the case of an electrical or mechanical malfunction.

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patent: 3070857 (1963-01-01), Venus
patent: 3590114 (1971-06-01), Uhlig
patent: 4027726 (1977-06-01), Hodler
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patent: 4463793 (1984-08-01), Thurner
patent: 4577670 (1986-03-01), Moore
patent: 4586560 (1986-05-01), Ikeya et al.
patent: 4638848 (1987-01-01), Yamasaki
patent: 4680003 (1987-07-01), Schulte et al.
patent: 5101882 (1992-04-01), Freeman

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