Patents by Inventor Gordon Malcom Edge

Gordon Malcom Edge 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).

  • Stroboscopic device
    Patent number: 4024473
    Abstract: An arrangement for use in indicating the speed of rotation of a body including a switch operated by elements which rotate according to the rotation of the body, a frequency generator which has an output signal at a frequency related to the desired speed of rotation of the body and an indicator which is actuated in accordance with the signals from both the switch and the frequency generator.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: May 17, 1977
    Assignee: Strathearn Audio Limited
    Inventors: Gordon Malcom Edge, Keith Douglas Ridler, Frederick James Easthope