Patents by Inventor Jacques J. Polveda

Jacques J. Polveda 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).

  • Ducted Anti-torque rotor with floating blades
    Patent number: 5542818
    Abstract: In the rotor, the pitch lever of each blade is connected to the tab of the pitch control spider by a ball joint mounted on a wrist pin and received with clearance in an oblong opening in a ring. The axially offset bearing surfaces of the cuff of the blade are mounted with a radial clearance in the bearings of the hub on which they swivel about the pitch axis of the blade. These radial clearances enable contacts of the ball joint against the edge of the opening on the side of the ends of its minor axis, but prevent these contacts on the side of the ends of the major axis of the oblong opening.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: August 6, 1996
    Assignee: Eurocopter France
    Inventors: Jerome M. Monvaillier, Jacques J. Polveda