Patents by Inventor James R. Scrivener

James R. Scrivener 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).

  • De-energized tap changer
    Patent number: 6335497
    Abstract: A de-energized tap changer is disclosed that includes a contact rail assembly, a gear assembly, a handle assembly and a transmission system that compensates for angular misalignment of the gear assembly and handle assembly. The transmission system includes two elongated members with attached blocks that fit inside a hollow tube and when the handle of the de-energized tap changer is rotated, torque is transmitted through the transmission system to the gear assembly which drives the movable contacts.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 1, 2002
    Assignee: ABB Power T&D Company Inc.
    Inventors: Stephen A. Perkins, John B. Baskin, Edgar R. Eley, Ralph S. Averitt, Juan L. Santana, Marty C. Brasher, Frank D. Wolfe, John N. Powell, James R. Scrivener