Patents by Inventor David J. M. Wilson

David J. M. Wilson 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).

  • Rotational motion fluid loop sensor using magnetically levitated detecting element
    Patent number: 4692614
    Abstract: A rotational motion sensor has a circular, tubular body (1) filled with a fluid. A sensor head (6) forming part of the body houses a movable detecting element in the form of a piston (7) which is magnetically levitated so that it is kept out of contact with the sensor body. Movement of the piston is detected in a number of different ways including using a variable magnetic reluctance pick-off (4, 5).
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: September 8, 1987
    Assignee: The Marconi Company Limited
    Inventors: David J. M. Wilson, Paul E. G. Cope