Patents by Inventor Donald B. Kittle

Donald B. Kittle 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).

  • Process for reducing stress corrosion in a weld by applying an overlay weld
    Patent number: 4049186
    Abstract: The stress corrosion tendency of a welded pipe in service in a nuclear reactor water line is reduced by applying to the outside of the pipe a secondary weld bridging the primary weld of the joint beyond the axial extremities of the primary weld heat affected zone and particularly that part of the zone at the inner surface of the pipe.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: September 20, 1977
    Assignee: General Electric Company
    Inventors: Rodney E. Hanneman, Richard M. Chrenko, Donald B. Kittle