Patents by Inventor N. Pat Hallinan

N. Pat Hallinan 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).

  • FRICTION STIR WELD TOOLS, METHODS OF MANUFACTURING SUCH TOOLS, AND METHODS OF THIN SHEET BONDING USING SUCH TOOLS
    Publication number: 20090120995
    Abstract: Friction stir weld tools configured to bond or laminate thin sheets. Friction stir weld tools have a first shoulder, a pin extending from a friction surface of the first shoulder, and a second shoulder. In some embodiments, the second shoulder is secured at least partially around the first shoulder and includes an engagement surface longitudinally recessed with respect to the friction surface of the first shoulder. In additional embodiments, the second shoulder is proximate the first shoulder and rotationally fixed. In yet additional embodiments, the pin has a diameter that is greater than the height of the pin and the second shoulder is secured at least partially around the first shoulder. Methods include manufacturing such friction stir weld tools. Methods include friction stir welding using such tools.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 14, 2009
    Applicant: Battelle Energy Alliance, LLC
    Inventors: N. Pat Hallinan, Douglas E. Burkes