Patents by Inventor Mark C. Clark

Mark C. Clark 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).

  • Self-aligning absorber tube for a control rod in a nuclear reactor
    Patent number: 5812623
    Abstract: A control rod assembly for a nuclear reactor, wherein a plurality of absorber tubes are arranged and welded in a side-by-side array, the improvement wherein each absorber tube is formed with an elongated slot extending substantially the entire length of the absorber tube on one side of the tube, and with an elongated tab extending substantially the entire length of the absorber tube on a diametrically opposed side of the tube such that, for adjacent absorber tubes, a joint is formed wherein the tab of one tube is located within the slot of the other.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: September 22, 1998
    Assignee: General Electric Company
    Inventors: James E. Holden, Kevin L. Ledford, Richard D. Wittmeier, Justin L. Banks, Mark C. Clark
  • Rectangular absorber tube for a control rod in a nuclear reactor
    Patent number: 5706318
    Abstract: A control rod for a nuclear reactor incorporates a plurality of neutron absorber tubes containing neutron absorbing materials. The absorber tubes are substantially rectangular inside and outside, each tube containing at least one axial stack of substantially round neutron absorbing material segments or capsules.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: January 6, 1998
    Assignee: General Electric Company
    Inventors: Kevin L. Ledford, James E. Holden, Richard D. Wittmeier, Justin L. Banks, Mark C. Clark