Patents by Inventor Colin J. Ray

Colin J. Ray 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).

  • Dynamometers
    Patent number: 4577497
    Abstract: A dynamometer comprises a drum mounted for rotation and driven by a drive motor, a test body coupled to the drum for rotation therewith in a fixed velocity relationship, a sensor apparatus for deriving the energy absorbed or dissipated by the test body, a sensor for determining the rotational velocity of the drum or body, and a control apparatus responsive to the energy absorbed or dissipated and to the rotational velocity and operative to supply a control signal to the drive motor to maintain the energy absorbed or dissipated as a predetermined function of drum speed.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: March 25, 1986
    Assignee: Vickers Public Limited Company
    Inventors: Colin J. Ray, Geoffrey Smith