Patents by Inventor William E. Ferris, deceased

William E. Ferris, deceased 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).

  • Method of electrically testing molded cord-sets during the molding operation
    Patent number: 4395375
    Abstract: In accordance with the present invention, there is provided an improved arrangement for and method of electrically testing a cord-set during the molding of the male plug and female receptacle to the opposite ends of the insulated electric cord. In order to accomplish this, the mold for forming the molded plug and receptacle is provided with suitable contacts which upon the closing of the mold automatically establish electrical connections between the terminals of the cord-set and circuits in testing apparatus. These tests consist of checking for continuity in each conductor and for shorts between conductors or terminals and a skin ground test for the purpose of detecting stray strands of wire or any current carrying object that would carry current to the outside surface of the molded plug or receptacle.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: July 26, 1983
    Assignee: Electrolux Corporation
    Inventors: William E. Ferris, deceased, Gail Hennessy, executrix, John Doumas, Harry McCarter
  • Apparatus for electrically testing molded cord-sets during the molding operation
    Patent number: 4035123
    Abstract: In accordance with the present invention, there is provided an improved arrangement for and method of electrically testing a cord-set during the molding of the male plug and female receptacle to the opposite ends of the insulated electric cord. In order to accomplish this, the mold for forming the molded plug and receptacle is provided with suitable contacts which upon the closing of the mold automatically establish electrical connections between the terminals of the cord-set and circuits in testing apparatus. These tests consist of checking for continuity in each conductor and for shorts between conductors or terminals and a skin ground test for the purpose of detecting stray strands of wire or any current carrying object that would carry current to the outside surface of the molded plug or receptacle.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: July 12, 1977
    Assignee: Consolidated Foods Corporation
    Inventors: William E. Ferris, deceased, by Gail Hennessy, executrix, John Doumas, Harry McCarter