Patents by Inventor John D. Figert

John D. Figert 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).

  • Heat treatment of friction stir welded 7X50 aluminum
    Patent number: 6802444
    Abstract: A method for treating alloy before and after friction stir welding, the method comprising the following steps. First solution heat treating a multiplicity of aluminum-zinc alloy engineered components for a first time period at a first temperature. First air cooling the components in ambient air at room temperature until the components are cooled to room temperature. Friction stir welding the components to form an assembly. Second solution heat treating the assembly for a second time period at a second temperature. Additional steps and embodiments are considered.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: October 12, 2004
    Assignee: The United States of America as represented by the National Aeronautics and Space Administration
    Inventors: George E. Petter, John D. Figert, Daniel J. Rybicki, Timothy H. Burns