Patents by Inventor James Alan Sparrow

James Alan Sparrow 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).

  • Nuclear fuel assembly protective grid
    Patent number: 7889829
    Abstract: An integral multilevel debris-catching system for a nuclear reactor fuel assembly having a lower protective grid incorporating laterally offset debris-catching arches at several elevations, extended solid fuel rod bottom end plugs and a bottom debris-filtering nozzle. Dimples and opposing opposite springs and the debris-trapping arches, which are spaced from the end plugs, are all located at elevations below the fuel cladding.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: February 15, 2011
    Assignee: Westinghouse Electric Company LLC
    Inventors: Yu Chung Lee, James Alan Sparrow