Patents by Inventor Leonard K. Thompson

Leonard K. Thompson 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).

  • Capacitive pressure relief rupture disc monitor
    Patent number: 4408194
    Abstract: A capacitive pressure relief rupture disc monitor for use in detecting the rupture of an electrically conductive rupture disc installed in a pressure relief vent includes a flat metal loop positioned in spaced relation to the rupture disc and forming a capacitor therewith. A capacitance sensor is connected to the disc and the loop and is operative to generate an output signal in response to a selected change in the capacitance between the loop and the disc as a result of movement of portions of the disc during rupture thereof. The output signal from the capacitance sensor is operative to trigger an alarm to thereby indicate the rupture of the disc.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: October 4, 1983
    Assignee: Continental Disc Corporation
    Inventor: Leonard K. Thompson
  • Rupture disc alarm system
    Patent number: 4342988
    Abstract: A monitor system for sensing the failure of a rupture disc and activating an alarm in response to such a failure. The system also senses potential failure of a rupture disc. The system includes a failsafe signal carrying loop which is broken when the rupture disc fails, thereby interrupting the signal. The system also includes a signal sensor which recognizes a signal interruption or substantial modification in the signal and initiates and cooperates with an alarm device to provide notice to an operator or a safety device that the rupture disc has failed.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: August 3, 1982
    Assignee: Continental Disc Corporation
    Inventors: Leonard K. Thompson, William H. Corbett
  • Rupture disc alarm system
    Patent number: RE34308
    Abstract: A monitor system for sensing the failure of a rupture disc and activating an alarm in response to such a failure. The system also senses potential failure of a rupture disc. The system includes a failsafe signal carrying loop which is broken when the rupture disc fails, thereby interrupting the signal. The system also includes a signal sensor which recognizes a signal interruption or substantial modification in the signal and initiates and cooperates with an alarm device to provide notice to an operator or a safety device that the rupture disc has failed.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: July 13, 1993
    Assignee: Continental Disc Corporation
    Inventors: Leonard K. Thompson, William H. Corbett