Patents by Inventor Doug Tilghman

Doug Tilghman 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).

  • Circuit breaker with a dual test button mechanism
    Patent number: 6259340
    Abstract: In an exemplary embodiment of the invention, a dual test mechanism is presented for use in a circuit breaker. More specifically, the dual test mechanism includes a dual test button which comprises a single switch for testing both the AFCI and GFCI circuits of the breaker. The test mechanism includes a circuit board, which forms a part of the circuit breaker, and a test button assembly which includes a test button and signaling components which are electrically connected to the circuit board.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: July 10, 2001
    Assignee: General Electric Company
    Inventors: Kevin Fuhr, Ray Seymour, Doug Tilghman, Brenda Zhang