Patents by Inventor C. Gregory Chen

C. Gregory Chen 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).

  • D. C. power controller with fuse protection
    Patent number: 4536814
    Abstract: A D.C. power controller for interrupting a high voltage high current D.C. power line supplying a load (L) from a D.C.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: August 20, 1985
    Assignee: Eaton Corporation
    Inventors: Peter J. Theisen, C. Gregory Chen
  • Bridging contactor with main and arcing contacts
    Patent number: 4421959
    Abstract: A bridging contact structure, suitable for use in AC contactors and the like, is provided with double-break stationary main contacts, and with double-break stationary arcing contacts in parallel with the main contacts. Silver usage in the main contacts is substantially reduced.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: December 20, 1983
    Assignee: Eaton Corporation
    Inventors: C. Gregory Chen, Daniel A. Wycklendt
  • Hybrid D.C. power controller
    Patent number: 4420784
    Abstract: A hybrid D.C. power controller of the relay/circuit breaker type that uses a hybrid arrangement of hard contacts (4) and power FET's (18, 20) in cooperative functional combination as the arc quenching means for 270 volt D.C. power systems in low atmospheric pressure environments such as at 80,000 feet altitude in aircraft applications. Also, the relay is provided with arc horns (44c, 48b, 48c, 46c), magnetic field amplifiers (60, 62) looped stationary contacts (44, 46), arc splitters (64, 66), and gas ablating insulating members (60b, 62b, 72, 74, 64b, 66) to enable the relay to interrupt the power circuit if necessary without the help of the power FET's. The power FET's are controlled in both opening and closing the power circuit to afford arcless contact operation in normal load make-break situations. Current and voltage sensing (28, 32) and sampling (CS, VS) circuits determine when to turn the power FET's on after contact arcing has provided the required values.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: December 13, 1983
    Assignee: Eaton Corporation
    Inventors: C. Gregory Chen, Ping S. Lee, Peter J. Theisen, Slobodan Krstic