Metal founding – Means to shape a forming surface – Including means applying vacuum directly to mold material
Patent
1976-05-03
1978-08-01
Husar, Francis S.
Metal founding
Means to shape a forming surface
Including means applying vacuum directly to mold material
164195, 164200, B22C 912, B22C 1522, B22C 1528
Patent
active
041037332
ABSTRACT:
A method and apparatus for preparing foundry moulds or cores from a cold-setting sand based foundry mixture. The foundry mixture is introduced to a mould or core box and during setting of the mixture in the box suction is applied to the box to accelerate the setting time.
REFERENCES:
patent: 2563643 (1951-08-01), DeRanek
patent: 2825945 (1958-03-01), Ulrech et al.
patent: 3059294 (1962-10-01), Dunn
patent: 3305901 (1967-02-01), Gero
patent: 3843301 (1974-10-01), Hijikata
Baker Perkins Holdings Limited
Brown John S.
Husar Francis S.
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