Patents by Inventor Leonard D. Webb

Leonard D. Webb 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).

  • Hydrostatic stress gauge system
    Patent number: 3933034
    Abstract: A hydrostatic stress gage including a sphere of incompressible fluid having positioned inside a drum like structure containing a pair of interconnected flat spiral coils forming a self-resonant tuned circuit, a change in pressure on the sphere will cause a variation in distance between the coils whereby changing the resonant frequency, when measured by an appropriate device stress may be measured.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: January 20, 1976
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: James S. Noel, John V. Hobbs, Leonard D. Webb