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Molten metal injector system and method

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The molten metal injector system includes a holder furnace, a casting mold supported above the holder furnace, and a molten metal injector supported from a bottom side of the mold. The holder furnace contains a supply of molten metal. The casting mold defines a mold cavity for receiving molten metal from the holder furnace. The injector projects downward into the holder furnace and is in fluid communication with the mold cavity. The injector includes a cylinder defining a piston cavity housing a reciprocating piston. The piston pumps molten metal upward from the holder furnace to the mold cavity. The cylinder further includes a molten metal intake for receiving molten metal into the piston cavity. The intake may be a valve or an aperture defined in the sidewall of the cylinder.
Bigler, Nicolas (Morin Heights, CA), Arnaud, Guy (Riziere-Beaudette, CA)
10/ 047,171
January 15, 2002
[0002] The subject matter of this application was made with United States government support under Contract No. 86X-SU545C awarded by the Department of Energy. The United States government has certain rights to this invention.