Patents by Inventor Kevin A. Darcy

Kevin A. Darcy 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).

  • Elevator feel actuator
    Patent number: 4477044
    Abstract: A constant force mechanical spring and a varying force hydraulic actuator combine to provide feel to a pilot of his movement of an airplane's elevators. A constant force bias spring works against the hydraulic actuator to reduce the actuators effectiveness to nearly zero at minimum feel force conditions.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: October 16, 1984
    Assignee: The Boeing Company
    Inventors: Kevin A. Darcy, Terence F. H. Faithfull