Patents Assigned to Deltamation Corporation
  • Two-chamber furnace for countergravity casting
    Patent number: 5948352
    Abstract: A two-chamber furnace for the low pressure countergravity casting of metal wherein the first chamber is a molten metal supply chamber connected by a submerged orifice closable by a stopper rod valve to a sealed second chamber that is pressurizable to fill a superjacent mold. The stopper rod valve is readily replaceable from the top of the furnace without having to empty the melt from the furnace.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 7, 1999
    Assignees: General Motors Corporation, Deltamation Corporation
    Inventors: A. Dean Vender Jagt, Gordon Alwin Tooley