Patents by Inventor Greg W. Barnes

Greg W. Barnes 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).

  • Automatic dual rotor speed control for helicopters
    Patent number: 9235217
    Abstract: A flight control system for a helicopter having a main rotor and a tail rotor is provided. The flight control system includes an automatic rotor speed control being configured to transition the main rotor and the tail rotor between a high speed and a low speed based upon a plurality of received information without requiring any pilot action, the plurality of received information comprising height above ground level, knot indicated air speed, outside air temperature, barometric altitude, pressure altitude, density altitude, and an engine operational status.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 12, 2016
    Assignee: Sikorsky Aircraft Corporation
    Inventors: Greg W. Barnes, Eileen F. Horbury, Eric W. Jacobs, Kenneth J. Buckman