Patents by Inventor David S. Jenney

David S. Jenney 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).

  • Roll vibration absorber
    Patent number: 5118051
    Abstract: A helicopter (10) is roll vibration resistant having cantilever spring (40) supported masses (42) located at extreme outboard locations (30). The spring portion (40) extends substantially horizontally and is rigidly secured to rigid structure (28). This vibration absorber (34) is tuned to the forced frequency established by the normal rotor (14) RPM times the number of rotor blades (16).
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: June 2, 1992
    Assignee: United Technologies Corporation
    Inventors: Thomas W. Sheehy, David S. Jenney, Phillip Mordaunt