Pattern plate device for vacuum sealed molding

Details Pattern plate device for vacuum sealed molding Pattern plate device for vacuum sealed molding

1974-07-26

1976-01-20

Husar, Francis S.

Metal founding

Means to shape a forming surface

Including means applying vacuum directly to mold material

164239, B22C 1522

Patent

active

039331946

ABSTRACT:
A pattern plate device for vacuum sealed molding, being applied with a negative pressure to the surfaces of said device, covered with a flexible film on said surfaces tightly, on which a molding flask having a reducing structure is set, and then being used for performing a vacuum sealed molding operation.

REFERENCES:
patent: 3843301 (1974-10-01), Hijikata et al.

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