Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1986-08-20
1989-01-10
Hoag, Willard E.
Metal founding
Means to shape metallic material
Pressure shaping means
164410, 4254051, 425425, 425812, 425DIG60, B22D 1310, B29C 784
Patent
active
047966866
ABSTRACT:
A device affixed to a centrifugal force casting machine that developes a vacuum as it travels through the air on the spinning arm of the casting machine. The developed vacuum is used to evacuate unwanted gasses from a casting mold.
REFERENCES:
patent: 2442718 (1948-06-01), Woock
patent: 3818974 (1974-06-01), Eberle
patent: 4063863 (1977-12-01), Hilmoe
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