Patents by Inventor Thomas A. Kircher

Thomas A. Kircher 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).

  • Method for removal of surface layers of metallic coatings
    Patent number: 6036995
    Abstract: A method for removing surface layers of a metal coating is disclosed. The method comprises applying an aluminum containing slurry to the surface of the metal coating, melting and diffusing the aluminum to form an aluminide layer within the surface of the metal coating, and removing the aluminide layer.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: March 14, 2000
    Assignee: Sermatech International, Inc.
    Inventors: Thomas A. Kircher, Bruce G. McMordie, Mark F. Mosser
  • Method for forming a coating substantially free of deleterious refractory elements on a nickel- and chromium-based superalloy
    Patent number: 5922409
    Abstract: The oxidation and corrosion resistance of a nickel-base alloy are enhanced by a process which includes first enriching the surface of an alloy substrate with platinum, as by electrolytic deposition, and then simultaneously diffusing aluminum and silicon from a molten state into the platinum-enriched substrate. The invention further provides coatings and coated substrates with enhanced oxidation and corrosion resistance.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: July 13, 1999
    Assignee: Sermatech International, Inc.
    Inventors: Bruce G. McMordie, Thomas A. Kircher
  • Platinum enriched, silicon-modified corrosion resistant aluminide coating
    Patent number: 5650235
    Abstract: The oxidation and corrosion resistance of a nickel-base alloy are enhanced by a process which includes first enriching the surface of an alloy substrate with platinum, as by electrolytic deposition, and then simultaneously diffusing aluminum and silicon from a molten state into the platinum-enriched substrate. The invention further provides coatings and coated substrates with enhanced oxidation and corrosion resistance.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: July 22, 1997
    Assignee: Sermatech International, Inc.
    Inventors: Bruce G. McMordie, Thomas A. Kircher