Patents by Inventor Orval C. White

Orval C. White 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).

  • Arcing fault detector
    Patent number: 5121282
    Abstract: An arcing fault detector is set up to identify arcing faults and to distinguish them from other disturbances in a circuit. A plurality of electrical conditions are monitored and the conditions are tested against predetermined parameters for establishing a series of logical conditions relating to the presence of an arcing fault. A logic circuit combines the logical conditions for deciding on the presence of an arcing fault. An output signal of the logic circuit is used to activate a relay for interrupting the supply of electrical power to the circuit.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: June 9, 1992
    Inventor: Orval C. White
  • Method and apparatus for indicating the leakage resistance in an electrical system
    Patent number: 4159501
    Abstract: The present invention contemplates an improved method and control apparatus for indicating the leakage resistance in an electrical system wherein the electrical system generally includes an alternating current power source connected to a load via a conductor assembly, and wherein the control apparatus generally includes: a direct current power source connected to the electrical system for impressing a direct current control signal on the electrical system, and a portion providing an output indication of the leakage resistance in the electrical system.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: June 26, 1979
    Assignee: Kerr-McGee Nuclear Corporation
    Inventor: Orval C. White