Patents by Inventor John N. Carris

John N. Carris has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of melting copper in a hearth melt-down furnace with roof burner system
    Patent number: 4444586
    Abstract: Copper is melted in a reverberatory furnace having a longitudinally extending hearth, a roof, side and end walls and having a burner system at one end wall thereof for providing at least one flame extending longitudinally through said furnace for heating the hearth thereof, the method also including using at least one oxygen lance extending downwardly from the roof of the furnace with the flame thereof in head-on contact with a unit portion of copper charged to the furnace, the total charge in the furnace comprising a plurality of unit portions disposed along said hearth.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: April 24, 1984
    Assignee: AMAX Inc.
    Inventors: John S. Bienus, Konstantin G. Theofilos, John N. Carris, Ernest M. DeLeo