Patents by Inventor J. N. M. de Jong

J. N. M. de Jong 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).

  • Capacitive pressure transducer
    Patent number: 4486812
    Abstract: A rigid capacitor plate for use in a capacitive pressure transducer of the type having a flexible diaphragm with a concave central portion serving as a pressure responsive capacitor plate, said rigid plate being supported on and spaced from said diaphragm by a plurality of small cross-sectional area pedestals.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: December 4, 1984
    Assignee: Sperry Corporation
    Inventors: J. N. M. de Jong, R. L. Earle