Patents by Inventor Roger D. Dennis

Roger D. Dennis 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).

  • Hardsurfacing material for engine components and method for depositing same
    Patent number: 5293026
    Abstract: A method for applying a hardsurfacing material to a workpiece such as a reciprocating aircraft engine tappet in which a carbon-containing wear resistant material in powder form is applied to a surface of the workpiece in the molten state while a sharp temperature gradient is established from the surface into the body of the workpiece to ensure that solidification occurs from the body upward. The resulting surface material consists of wear resistant carbides in a tough martensitic matrix with minimal formation of graphite.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: March 8, 1994
    Assignee: Eaton Corporation
    Inventors: Roger D. Dennis, Michael L. Killian, Jay M. Larson, Sundaram L. Narasimhan, Dennis T. Vukovich, Homer D. Wireman