Patents by Inventor John H. Warkentin

John H. Warkentin 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).

  • Electrically operated switch having an improved linkage means
    Patent number: 4528433
    Abstract: There is provided in this invention an oil-filled electrical switch having a unique linkage and toggle mechanism that prevents the assembly from having a dead center position. There is also provided a stationary contact support structure upon which a rotary movable contact travels having openings in the structure for breaking up and cooling the arcs.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: July 9, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: Oral L. Riggins, Sherry J. Mills, John H. Warkentin, Joseph P. Stephans, Clancy O. Wisdom