Patents by Inventor Frank Henry Bonisch

Frank Henry Bonisch 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).

  • Patent number: 4111068
    Abstract: A low-friction, axially extensible strut, automatically lockable in both tension and compression, for use as a secondary load path in helicopter main rotor force measurement systems.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: September 5, 1978
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Frank Henry Bonisch