Patents by Inventor Quang D. Ho

Quang D. Ho 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).

  • Method and apparatus for detecting failed fuel rods (ENC-189)
    Patent number: 4879088
    Abstract: Nuclear fuel rods are checked for the presence of water in their interior by injecting bursts of ultrasound radially into the wall of each tube, producing echoing back and forth between the inner and outer surfaces of the tube. The rate of decay of this echoing indicates whether or not water is present.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: November 7, 1989
    Assignee: Advanced Nuclear Fuels Corporation
    Inventors: Leo F. van Swam, Thomas R. Blair, Quang D. Ho
  • Mechanism for testing fuel tubes in nuclear fuel bundles
    Patent number: 4689193
    Abstract: A mechanism for testing fuel tubes in nuclear fuel bundles includes a carriage, carrying an elongated probe, and a grooved plate. The grooves are parallel to the probe and are spaced by the same distances as rows of tubes in the fuel bundle. They are connected at at least one end. A pin on the carriage fits in the grooves. A hydraulic cylinder reciprocates the carriage longitudinally of the grooves and a pneumatic cylinder urges it laterally, so that the pin moves from groove to groove at the end of each stroke.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: August 25, 1987
    Assignee: Exxon Nuclear Company Inc.
    Inventors: Leo F. van Swam, Quang D. Ho