Patents by Inventor Timothy E. Hatten

Timothy E. Hatten 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 and method for friction stir welding using filler material
    Patent number: 6543671
    Abstract: A friction stir welding tool includes a body having an upper surface defining an entrance opening and a lower surface, and a pin having a lower surface defining an exit opening, wherein the pin extends from the lower surface of the body. The friction stir welding tool further includes a passageway defined by the body and the pin from the entrance opening to the exit opening and is capable of allowing a filler material to pass therethrough. A friction stir welding method includes applying a frictional heating source to a workpiece to plasticize a volume of the workpiece and applying the frictional heating source to a filler material to plasticize the filler material. The method further includes introducing the filler material into the volume of the workpiece and incorporating the filler material into the volume of the workpiece.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: April 8, 2003
    Assignee: Lockheed Martin Corporation
    Inventors: Timothy E. Hatten, William J. Arbegast
  • APPARATUS AND METHOD FOR FRICTION STIR WELDING USING FILLER MATERIAL
    Publication number: 20030042292
    Abstract: A friction stir welding tool includes a body having an upper surface defining an entrance opening and a lower surface, and a pin having a lower surface defining an exit opening, wherein the pin extends from the lower surface of the body. The friction stir welding tool further includes a passageway defined by the body and the pin from the entrance opening to the exit opening and is capable of allowing a filler material to pass therethrough. A friction stir welding method includes applying a frictional heating source to a workpiece to plasticize a volume of the workpiece and applying the frictional heating source to to a filler material to plasticize the filler material. The method further includes introducing the filler material into the volume of the workpiece and incorporating the filler material into the volume of the workpiece.
    Type: Application
    Filed: September 5, 2001
    Publication date: March 6, 2003
    Inventors: Timothy E. Hatten, William J. Arbegast