Patents by Inventor Frank D. Wolfe

Frank D. Wolfe 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).

  • Fuse housing with rate release control plug
    Patent number: 6624736
    Abstract: A fuse housing assembly is disclosed that includes a rate release plug that prevents the emission of large quantities of dielectric oil from a transformer tank upon removal of a fuse holder from a bayonet-type fuse holder. The rate release plug allows pressurized gas inside the tank to escape while at the same time, impeding the flow of dielectric oil out of the tank.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: September 23, 2003
    Assignee: ABB Inc.
    Inventors: John F. Cotton, Frank D. Wolfe
  • 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