Vacuum control valving apparatus for a vacuum sealed molding app

Details Vacuum control valving apparatus for a vacuum sealed molding app Vacuum control valving apparatus for a vacuum sealed molding app

1975-01-06

1976-07-20

Shore, Ronald J.

Metal founding

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

164385, B22C 1112, B22C 902

Patent

active

039701395

ABSTRACT:
A vacuum control valving apparatus for a vacuum sealed molding apparatus. The control valving apparatus is located between a pair of mold members, one stacked upon the other, and a mating surface on a rail conveyor truck. The valving apparatus provides a controlled communication of a first vacuum source to an evacuation chamber on the mold members. The valving arrangement also effects a connection of the evacuation chambers on each of the mold members to a second vacuum source connection of the rail conveyor truck when the mold members are vertically stacked one on the other and in the appropriate location on the rail conveyor truck.

REFERENCES:
patent: 3825058 (1974-07-01), Miura et al.
patent: 3832117 (1974-08-01), Hijikata et al.
patent: 3872915 (1975-03-01), Nakata et al.

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