Patents by Inventor Wayne J. Maddever

Wayne J. Maddever 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).

  • Melting furnace for melting metal
    Patent number: 4796277
    Abstract: A melting furnace and method for melting metal comprising the injection of inert gas into molten metal at a defined location as a concentrated plume to create localized surface agitation, and high quality refractory surrounding the gas injection means at the furnace bottom.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: January 3, 1989
    Assignee: Union Carbide Corporation
    Inventors: Wayne J. Maddever, Michael F. Riley, Ronald J. Selines
  • Melting furnace and method for melting metal
    Patent number: 4699654
    Abstract: A melting furnace and method for melting metal comprising the injection of inert gas into molten metal at a defined location as a concentrated plume to create localized surface agitation, and high quality refractory surrounding the gas injection means at the furnace bottom.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: October 13, 1987
    Assignee: Union Carbide Corporation
    Inventors: Wayne J. Maddever, Michael F. Riley, Ronald J. Selines
  • Production of ultra low carbon steel by the basic oxygen process
    Patent number: 4397685
    Abstract: Low alloy steel having an ultra low carbon content is produced using the basic oxygen process wherein an inert gas is introduced into the melt when the melt has a carbon content below about 0.06 weight percent, the oxygen flowrate is adjusted to from 10 to 40 percent of the inert gas flow rate and the oxygen lance height is reduced to from 30 to 60 percent of the normal lance height.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: August 9, 1983
    Assignee: Union Carbide Corporation
    Inventors: Wayne J. Maddever, Michael T. Burns, Jennings B. Lewis