Patents by Inventor James Risbeck

James Risbeck 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 removing aluminide coating from metal substrate and turbine engine part so treated
    Publication number: 20050244274
    Abstract: A method for selectively removing an aluminide coating from at least one surface of a metal-based substrate by: (a) contacting the surface of the substrate with at least one stripping composition comprising nitric acid at a temperature less than about 20° C. to degrade the coating without damaging the substrate; and (b) removing the degraded coating without damaging the substrate. Also disclosed is a method for replacing a worn or damaged aluminide coating on at least one surface of a metal-based substrate by selectively removing the coating using the above steps, and then applying a new aluminide coating to the surface of the substrate. Turbine engine parts, such as high-pressure turbine blades, treated using the above methods are also disclosed.
    Type: Application
    Filed: June 30, 2005
    Publication date: November 3, 2005
    Inventors: Roger Wustman, Mark Rosenzweig, William Brooks, Brian Pilsner, James Risbeck, Richard Worthing
  • METHOD FOR REMOVING ALUMINIDE COATING FROM METAL SUBSTRATE AND TURBINE ENGINE PART SO TREATED
    Publication number: 20050161439
    Abstract: A method for selectively removing an aluminide coating from at least one surface of a metal-based substrate by: (a) contacting the surface of the substrate with at least one stripping composition comprising nitric acid at a temperature less than about 20° C. to degrade the coating without damaging the substrate; and (b) removing the degraded coating without damaging the substrate. Also disclosed is a method for replacing a worn or damaged aluminide coating on at least one surface of a metal-based substrate by selectively removing the coating using the above steps, and then applying a new aluminide coating to the surface of the substrate. Turbine engine parts, such as high-pressure turbine blades, treated using the above methods are also disclosed.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 28, 2005
    Inventors: Roger Wustman, Mark Rosenzweig, William Brooks, Brian Pilsner, James Risbeck, Richard Worthing