Patents by Inventor John O. Silvey

John O. Silvey 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).

  • High-accuracy optical torquemeter
    Patent number: 3940979
    Abstract: An optical torquemeter adapted to provide torque readings as accurate as 1-to-2 foot pounds over a torque range of the order of 1 to 2 thousand foot pounds. It converts a binary-type optical message to an electric signal in the form of variable-width pulses. The width of the electric pulses indicates both the magnitude and the direction of torque and the pulses are processed to provide an output representing torque.
    Type: Grant
    Filed: October 11, 1973
    Date of Patent: March 2, 1976
    Assignee: Massachusetts Institute of Technology
    Inventors: John E. Ward, John O. Silvey, James K. Roberge