Patents by Inventor Kevin John SCHURNGEL

Kevin John SCHURNGEL 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 FRICTION STIR WELDING A TUBE TO AN ELEMENT USING A TUBULAR ANVIL; STRUCTURE MANUFACTURED BY THIS METHOD
    Publication number: 20160202001
    Abstract: A process that uses friction stir welding to connect a tube, for example a thin gauge tube having a wall thickness of about 2.54 mm (0.100 inch) or less, to another element, such as a tube sheet of a heat exchanger. The process employs a tubular anvil that is installed into the end of the tube and which, in one embodiment, can provide material during the friction stir welding process. After the weld is complete, the weld zone between the tubular anvil and the tube is machined away and the anvil tube removed.
    Type: Application
    Filed: August 25, 2014
    Publication date: July 14, 2016
    Inventors: Michael R. ELLER, Randy J. BROWN, Kevin John SCHURNGEL