Patents by Inventor Joseph F. Cullinan

Joseph F. Cullinan 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).

  • Ti-Cr-Al protective coatings for alloys
    Patent number: 5783315
    Abstract: An article having a protective coating thereon includes a substrate having a substrate composition and a substrate surface, and a protective coating contacting and overlying at least a portion of the substrate surface. The substrate is preferably a Ti--Nb aluminide, an .alpha.2-titanium aluiminide, or a .gamma.-titanium aluminide. The protective coating includes a metallic layer contacting the substrate surface and having a composition, in atomic percent, of from about 5 to about 40 percent chromium, from about 44 to about 59 percent aluminum, balance titanium plus incidental impurities. The protective coating may further include a ceramic layer contacting and overlying the metallic layer, with the metallic layer lying between the ceramic layer and the substrate.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 21, 1998
    Assignee: General Electric Company
    Inventors: Jon C. Schaeffer, Russell L. McCarron, Gerald H. Meier, Roger A. Perkins, Joseph F. Cullinan