Patents by Inventor Jack E. Bunn

Jack E. Bunn 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).

  • Apparatus for rebuilding cylindrical objects
    Patent number: 4242981
    Abstract: Apparatus and method for rebuilding the internal surface of a cylindrical object, including a mandrel for supporting the object for rotation about its longitudinal axis, and a wire-fed welding torch positionable adjacent to the interior surface of the object. The welding torch is movable axially with respect to the object during the rotation thereof, so as to deposit material about the interior of the object.
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: January 6, 1981
    Inventors: Philippe G. Bernard, Jack E. Bunn