Patents by Inventor Christopher M. Marley

Christopher M. Marley 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).

  • Wheel alignment measurement system
    Patent number: 5243766
    Abstract: A vehicle wheel alignment measurement system includes four infra-red emitter-detector units fixed by clamps to the vehicle wheels. Each unit includes a beacon and a rotatable detector coaxial with the beacon and driven by a motor. Angular rotation of the detector is sensed and signals from the four units are analyzed by a signal processing computer to give absolute position and relative angular measurements of the four wheels.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: September 14, 1993
    Assignee: V. L. Churchill Ltd.
    Inventors: Christopher M. Marley, David Pink