Patents by Inventor James C. Dunmire

James C. Dunmire 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).

  • Steam turbine having applied novel erosion resistant surfaces and methods for applying these surfaces
    Patent number: 5049716
    Abstract: Methods for providing erosion resistant surfaces to carbon steel turbine components are provided by this invention. The methods include welding a steel weldment comprising at least 12 wt. % Cr. on to a carbon steel steam turbine component at a welding speed of about 24-52 inches, 61-132 cm, per minute in a nominal first pass thickness of less than about 0.1 inches, 0.25 cm. Preferred flux-cord-arc welding (FCAW) techniques are disclosed for vertical down, overhead, horizontal and flat surfacing positions.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: September 17, 1991
    Assignee: Westinghouse Electric Corp.
    Inventors: James C. Dunmire, Samuel D. Reynolds, Jr.