Patents by Inventor Ralph James Carl, Jr.

Ralph James Carl, Jr. 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 and apparatus for selectively removing coatings from substrates
    Patent number: 6599416
    Abstract: An electrochemical stripping method for selectively removing at least one coating from the surface of a substrate is described. The substrate is immersed in an aqueous composition through which electrical current flows. The composition includes an acid having the formula HxAF6, in which “A” is Si, Ge, Ti, Zr, Al, or Ga; and x is 1-6. Various coatings can be removed, such as diffusion or overlay coatings. The method can be used to fully-strip a coating (e.g., from a turbine component), or to partially strip one sublayer of the coating. Related processes and an apparatus are also described.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: July 29, 2003
    Assignee: General Electric Company
    Inventors: Lawrence Bernard Kool, Ralph James Carl, Jr., Bin Wei, James Anthony Ruud, Mark Alan Rosenzweig, Stephen Joseph Ferrigno