Patents by Inventor Henry V. Holmes

Henry V. Holmes 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 of refurbishing a transition duct for a gas turbine system
    Patent number: 7041231
    Abstract: A method of refurbishing a transition duct (100) for a gas turbine system includes providing the transition duct. The transition duct has a first wall (221) defining a first passageway (110) and having holes (223) through a metal layer (322) and a ceramic layer (323), and the transition duct also has a second wall (222) adjacent to and separate from the first wall and external to the first passageway, where the first and second walls define a second passageway (210) coupled to the first passageway through the holes in the first wall. The method further includes masking the holes in the first wall, sealing the first passageway, and after sealing the first passageway, using a liquid etchant to chemically remove the ceramic layer from the first wall while keeping the liquid etchant out of the second passageways.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: May 9, 2006
    Assignee: Triumph Brands, Inc.
    Inventors: Henry V. Holmes, Alan C. Banner, Brenton L. Blanche, Paul H. Coleman, Jeffery R. Schenk, Richard J. Stueber