Patents by Inventor Fabian D. Stacy

Fabian D. Stacy 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 magnetically-coupled trip indicator
    Patent number: 7649433
    Abstract: An oil-immersed circuit breaker is provided having a mechanical/magnetic trip indicator. In a preferred embodiment, the trip indicator comprises a mechanical drive train (coupled to a conventional trip-sensing mechanism), a push piece, and an indicator piece. The drive train and the push piece are located inside the enclosure immersed in oil. The indicator piece is located outside the enclosure. The push piece is magnetically coupled to the indicator piece. Magnetic coupling eliminates problems encountered with prior art trip indicators associated with oil-seal leakage, electrical component failure, and power source failure.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 19, 2010
    Assignee: ABB Technology AG
    Inventors: Edgar R. Eley, John B. Baskin, Fabian D. Stacy
  • Circuit breaker with magnetically-coupled trip indicator
    Publication number: 20080127882
    Abstract: An oil-immersed circuit breaker is provided having a mechanical/magnetic trip indicator. In a preferred embodiment, the trip indicator comprises a mechanical drive train (coupled to a conventional trip-sensing mechanism), a push piece, and an indicator piece. The drive train and the push piece are located inside the enclosure immersed in oil. The indicator piece is located outside the enclosure. The push piece is magnetically coupled to the indicator piece. Magnetic coupling eliminates problems encountered with prior art trip indicators associated with oil-seal leakage, electrical component failure, and power source failure.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 5, 2008
    Inventors: Edgar R. Eley, John B. Baskin, Fabian D. Stacy