Patents by Inventor John T. Attridge

John T. Attridge 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).

  • Connector for terminating the end of a sheathed heating element
    Patent number: 4186369
    Abstract: A connector for terminating the end of a sheathed heating element is formed by an elongated body having a cavity at one end. The cavity includes at least one surface having a diameter dimension adapted to slidingly engage one of the diameter surfaces of the heating element sheath, and a thrubore, concentrically located with respect to the cavity diameter, adapted to slidingly engage the terminal pin of the heating element. The connector will mate with a heating element if and only if the heating element terminal pin is properly located with respect to the heating element sheath.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: January 29, 1980
    Assignee: Wylain, Inc.
    Inventors: John T. Attridge, John Barnstead