Patents by Inventor Cecil G. Hemmens

Cecil G. Hemmens 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).

  • Potentiometers
    Patent number: 4105987
    Abstract: A potentiometer comprises a housing one end of which is closed by an insulating board which carries associated resistive and highly conductive areas or tracks arranged to be bridged by a metallic wiper loosely fitted to a wiper carrier part of an actuator such as an actuating spindle which is rotatably supported by the housing from which the spindle may project and which is preferably also rotatably supported by the insulating board.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: August 8, 1978
    Assignee: Plessey Handel und Investments AG
    Inventors: Gordon Spence, Cecil G. Hemmens, Alan Godfrey