Patents by Inventor Lee A. Flanigan

Lee A. Flanigan 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).

  • Hollow electrode and arc initiation method
    Patent number: 4803339
    Abstract: An improved hollow electrode 10 and hollow electrode working tip 14 for a gas tunsten arc welding apparatus is disclosed. The hollow electrode face is formed as a lune-shaped radial surface 16 having two tapered intersecting cone-shaped angled surfaces 18. The improved electrode working tip provides a controllable stable arc resulting in an improved weld.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: February 7, 1989
    Assignee: Rockwell International Corporation
    Inventors: Stephen S. Gordon, Gerald E. Dyer, Lee A. Flanigan