Patents by Inventor Stanley L. Frank

Stanley L. Frank 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).

  • Contact block interlock for electric switch
    Patent number: 4029924
    Abstract: An electric switch characterized by at least two contact blocks stacked in end-to-end surface abutment, which blocks comprise movable contacts and means for moving the same, and interlock means interconnecting adjacent blocks against longitudinal separation.
    Type: Grant
    Filed: September 16, 1975
    Date of Patent: June 14, 1977
    Assignee: Westinghouse Electric Corporation
    Inventors: Stanley L. Frank, Stephen S. Dobrosielski