Patents Represented by Attorney David R. Francescani

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  • Reactor safety method
    Patent number: 4192714
    Abstract: This invention relates to safety means for preventing a gas cooled nuclear reactor from attaining criticality prior to start up in the event the reactor core is immersed in hydrogenous liquid. This is accomplished by coating the inside surface of the reactor coolant channels with a neutral absorbing material that will vaporize at the reactor's operating temperature.
    Type: Grant
    Filed: December 7, 1966
    Date of Patent: March 11, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Lawrence J. Vachon
  • Seal arrangement for intersecting conduits
    Patent number: 4188038
    Abstract: A seal arrangement in which two intersecting conduits are sealed from each other. A sleeve insert is locked in a sealed relationship within one conduit enclosing the openings of the intersecting conduit.
    Type: Grant
    Filed: April 10, 1968
    Date of Patent: February 12, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Friedrich E. Goedicke