Patents by Inventor Frank A. Koltuniak

Frank A. Koltuniak 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).

  • Thermally sprayed aluminum-bronze coatings on aluminum engine bores
    Patent number: 5080056
    Abstract: This specification describes the thermal spraying of an aluminum-bronze alloy coating onto aluminum alloy cylinder bores or piston skirts to provide a scuff- and wear-resistant surface.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: January 14, 1992
    Assignee: General Motors Corporation
    Inventors: Martin S. Kramer, Chester J. Rivard, Frank A. Koltuniak