Patents by Inventor James B. Wallace

James B. Wallace 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).

  • Mechanical interlock for vertically mounted circuit breakers
    Patent number: 4516100
    Abstract: A mechanical interlock for a pair of vertically mounted circuit breakers, each circuit breaker having a trip latch mechanism for opening the circuit breaker and a mechanical contact position indicator for indicating the open or closed position of the circuit breaker with the interlock extending between the trip latch mechanism and contact position indicator mechanism of each circuit breaker. The interlock allowing only one circuit breaker to be closed at any time.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: May 7, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: James B. Wallace, Glenn R. Thomas
  • Electric control system with mechanical interlock
    Patent number: 4295053
    Abstract: An electric control system with mechanical interlock characterized by means for switching between normal and emergency supply lines extending to a load which comprise two parallel paths extending to the load which paths include spaced controlled devices, and mechanical interlock means between the several control devices for preventing closing of two or more control devices at the same time.
    Type: Grant
    Filed: October 23, 1979
    Date of Patent: October 13, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: George N. Kovatch, James B. Wallace