Patents by Inventor William Daniel Lafferty

William Daniel Lafferty 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).

  • Apparatus for providing a stream of molten metal from a metallic ingot
    Patent number: 4043716
    Abstract: An apparatus and method for providing a stream of molten metal from a metallic ingot wherein a quantity of the molten metal from the melted ingot is maintained at an established level within the chamber of the apparatus. It is further heated to an established temperature to then facilitate passage of the molten material through the apparatus's orifice.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: August 23, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: William Daniel Lafferty, James Thomas Smith, Nicholas Wayne Rench
  • Tungsten carbide-cobalt flame spray powder and method
    Patent number: 4025334
    Abstract: Tungsten carbide-cobalt agglomerated flame spray powder is produced by spray drying a slurry of particles in an aqueous cobalt nitrate solution. The agglomerates are classified according to size and the out-of-size agglomerates are recycled. The classified agglomerates are heated in flowing hydrogen, to reduce the nitrate to cobalt metal, and then sintered to strengthen the agglomerates for subsequent flame spraying.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: May 24, 1977
    Assignee: GTE Sylvania Incorporated
    Inventors: Richard Frank Cheney, William Daniel Lafferty, George Jacob Long