Patents by Inventor Thomas A. Wolfla

Thomas A. Wolfla 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).

  • High temperature wear resistant coating composition
    Patent number: 4124737
    Abstract: A coating composition for producing high temperature, wear-resistant coatings on a metallic substrate, such as a nickel, cobalt, or iron base alloy, consisting of a cobalt base alloy with chromium, tantalum and carbon additions thereto. The basic composition may also contain one or more of aluminum, yttrium or the rare earth metals, silicon, manganese, or a dispersion of a metal oxide, such as alumina (Al.sub.2 O.sub.3).
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: November 7, 1978
    Assignee: Union Carbide Corporation
    Inventors: Thomas A. Wolfla, Robert C. Tucker, Jr.
  • Two layer coating system
    Patent number: 3971633
    Abstract: A coating system for protecting metallic substrates in reducing or oxygen-free environments which includes a first layer of chromium carbide plus metallic binder having a thickness of from 0.001 to 0.015 inches and a surface layer of all chromium carbide having a thickness of from 0.0005 to 0.005 inches.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: July 27, 1976
    Assignee: Union Carbide Corporation
    Inventors: Thomas A. Wolfla, Robert C. Tucker, Jr.