Patents by Inventor Eric A. Estill

Eric A. Estill 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).

  • Patent number: 6283715
    Abstract: A gas turbine component has a platform, a shank extending downwardly from the platform, and an airfoil extending upwardly from the platform. The gas turbine component is coated by first applying a first chromide layer overlying the base metal of at least a portion of the shank and interdiffused therewith, and second applying a second coating on at least a portion of the airfoil. The second coating optionally includes a second chromide layer contacting the base metal of the airfoil and interdiffused therewith, and includes an aluminide protective layer overlying the second chromide layer. The first chromide layer on the shank and the second chromide layer on the airfoil may be within the same chromium composition range (for example, from about 20 to about 30 weight percent chromium) and thickness range (for example, from about 0.001 to about 0.002 inch), and deposited at the same time.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: September 4, 2001
    Assignee: General Electric Company
    Inventors: Bangalore A. Nagaraj, Norbert O. Maurer, Eric A. Estill, Elissa H. Lee
  • Patent number: 5120197
    Abstract: Taught is an improved tip-shrouded blade and a method of manufacturing the same. In accordance with the present invention, the inventive blade comprises a blade including an airfoil having a residual compressive stress in areas thereof subject to high local stress.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: June 9, 1992
    Assignee: General Electric Company
    Inventors: Robert O. Brooks, Eric A. Estill