Patents by Inventor Jacques Dupas

Jacques Dupas 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).

  • Rotary wing blade, rotor comprising at least two of such blades and method to implement such a rotor
    Patent number: 9334050
    Abstract: The present disclosure is directed to a rotary wing rotor comprising one or more blades. Each blade has a torsion frequency around its span being substantially equal to a rotation frequency (?) of the rotor; torsion means twist to the rotation frequency of the rotor, in synchronization with said rotation; and comprising a material configured to dampen the torsion resonance, so as to avoid the resonance divergence.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 10, 2016
    Assignee: ONERA (Office National d'Etudes et de Recherches Aérospatliales)
    Inventors: Hugues Mercier Des Rochettes, Léon Buchaniek, Didier Joly, Jacques Dupas, Philippe Leconte
  • ROTARY WING BLADE, ROTOR COMPRISING AT LEAST TWO OF SUCH BLADES AND METHOD TO IMPLEMENT SUCH A ROTOR
    Publication number: 20120263590
    Abstract: The present disclosure is directed to a rotary wing rotor comprising one or more blades. Each blade has a torsion frequency around its span being substantially equal to a rotation frequency (?) of the rotor; torsion means twist to the rotation frequency of the rotor, in synchronization with said rotation; and comprising a material configured to dampen the torsion resonance, so as to avoid the resonance divergence.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: ONERA (Office National d'Etudes et de Recherches Aerospatiales)
    Inventors: Hugues Mercier Des Rochettes, Léon Buchaniek, Didier Joly, Jacques Dupas, Philippe Leconte