Patents by Inventor Joëlle Bailly

Joëlle Bailly 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).

  • Two-sweep rotary wing blade with limited taper ratio
    Patent number: 7331765
    Abstract: A rotary wing blade of limited taper ratio, comprising in succession along a reference radius: an inner zone; a forward-swept zone; and a back-swept zone. In addition, the beginning of the forward-swept zone lies in the range 0.47 to 0.65 times the reference radius R of the rotary wing. Furthermore, the leading edge of the blade at the reference radius presents an angle ? lying in the range ?40° and ?65° relative to the general axis of the blade.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: February 19, 2008
    Assignees: Eurocopter, Office National D'Etudes et de Recherches Aerospatiales
    Inventors: Danlèle Falchero, Gilles Arnaud, Frédéric Beroul, Joëlle Bailly, Philippe Beaumier, Yves Delrieux
  • Two-sweep rotary wing blade with limited taper ratio
    Publication number: 20050158175
    Abstract: The present invention relates to a rotary wing blade of limited taper ratio, comprising in succession along a reference radius: an inner zone; a forward-swept zone; and a back-swept zone. In addition, the beginning of the forward-swept zone lies in the range 0.47 to 0.65 times the reference radius R of the rotary wing. Furthermore, the leading edge of the blade at the reference radius presents an angle ? lying in the range ?40° and ?60° relative to the general axis of the blade.
    Type: Application
    Filed: January 21, 2005
    Publication date: July 21, 2005
    Inventors: Daniele Falchero, Gilles Arnaud, Frederic Beroul, Joelle Bailly, Philippe Beaumier, Yves Delrieux