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US 4,796,686 AGranted
Centrifugal casting machine with venturi actuated vacuum venting
OwnerDonald W. Gaysoinventor
Life of this patent
Estimating the term…
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.
Claims2
In a centrifugal molding apparatus having at least one mold defining a mold cavity, attached to an arm mounted for rotation, the improvement comprising:
- at least one venturi connected with said mold and mounted such that rotation of said arm will induce a negative pressure in said cavity to vent gases from said cavity.
Dependencies are inferred from the claim text.