Patents by Inventor Sylvie J. Commelin

Sylvie J. Commelin 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).

  • Flap stops device with retractable upper stops ring, and rotor head including it
    Patent number: 5588801
    Abstract: The device comprises anti-cone stops projecting outwards from a common ring that can rotate about the rotor axis on the top face of the hub and flyweights are each individually joined to the ring for driving the latter in rotation from the "ground" position, in which each anti-cone stop is facing an upper bearing shoe of the corresponding blade, to the "flight" position, in which the anti-cone stops are retracted, returning them to the "ground" position.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: December 31, 1996
    Assignee: Eurocopter France
    Inventors: Sylvie J. Commelin, Jean J. Mondet