Patents by Inventor Mark L. Prugar

Mark L. Prugar 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).

  • Nickel-base superalloys especially useful as compatible protective environmental coatings for advanced superaloys
    Patent number: 5035958
    Abstract: There is provided by the present invention an alloy which is mechanically and chemically compatible with advanced nickel-base superalloys and nickel-base eutectic superalloys and which possesses excellent resistance to high temperature oxidation. The alloy of the invention is, therefore, particularly useful as a protective environmental coating for the external surfaces of hot-stage aircraft gas turbine engine components, e.g., rotating blades and stationary vanes, made from such advanced superalloys.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: July 30, 1991
    Assignee: General Electric Company
    Inventors: Melvin R. Jackson, Mark L. Prugar, Swe-Wong Yang, John R. Rairden, III, Michael F. X. Gigliotti, Jr.