Patents by Inventor James B. Hassall

James B. Hassall 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).

  • Shielding device
    Patent number: 4865801
    Abstract: A shielding device is disclosed for use in the under-vessel area from radiation emanating above the lower terminus of a control rod drive of a power generating nuclear reactor of the boiling water type. The device may be comprised of a plurality of individually mountable shell-like housings which are joined in mating contiguous relation to surround the lower terminus of a control rod drive. In the preferred embodiment, each such device is provided with an intergrated access door which will allow access to and removal of any connectors and cables such as those of a position indicating probe.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: September 12, 1989
    Assignee: Brahm, Brown, et al.
    Inventors: Leroy D. Brahm, Frank C. Brown, David F. Ciarlone, Mark R. Dedrich, James B. Hassall, Fedor M. Salva
  • Shielding device
    Patent number: 4699752
    Abstract: A shielding device is disclosed for use in shielding the under-vessel area from radiation emanating above the lower terminus of a control rod drive of a power generating nuclear reactor of the boiling water type. The device may be comprised of a plurality of individually mountable shell-like housings which are joined in mating contiguous relation to surround the lower terminus of a control rod drive. In the preferred embodiment, each such device is provided with an integrated access door which will allow access to and removal of any connectors and cables such as those of a position indicating probe.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: October 13, 1987
    Inventors: Leroy D. Brahm, Frank C. Brown, David F. Ciarlone, Mark R. Dedrich, James B. Hassall, Fedor M. Salva