Patents by Inventor Raymond G. Richards

Raymond G. Richards 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 and apparatus for determining continuity of an electrical conductor
    Patent number: 4409541
    Abstract: Continuity of antenna wire of an antenna windshield is determined by mounting two electroconductive receiving plates in space relationship to one another and to an electroconductive transmitting plate. The receiving plate and transmitting plate are positioned over and spaced from segments of the antenna wire. The transmitting plate is energized to form capacitors or capacitance couplings (1) between segments of the antenna wire and the plate and (2) between the receiving plates and transmitting plates. The potential difference between the receiving plates is measured to determine wire continuity.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: October 11, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Raymond G. Richards