Patents by Inventor Thomas S. Kilbourn

Thomas S. Kilbourn 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 hard surfacing by plasma torch
    Patent number: 4104505
    Abstract: The plasma torch of this disclosure provides a shielded plasma arc using an external powder feed and an inert gas shield. The torch of this disclosure has a smaller outside diameter than prior art torches and allows better orientation of the torch with respect to a substrate to be hard faced. A method of hard surfacing an article, preferably using the torch of this invention, is also disclosed. The rotation of the article, a valve body, is controlled during hard facing to prevent deflects.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: August 1, 1978
    Assignee: Eaton Corporation
    Inventors: Larry W. Rayment, Thomas S. Kilbourn