Patents by Inventor Leon Buchaniek

Leon Buchaniek 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
  • Elongated, torsion-deformable aerodynamic element
    Patent number: 8205840
    Abstract: The invention relates to an elongated, torsion-deformable aerodynamic element, in which the upper surface (2) is continuous while the lower surface (3) comprises a longitudinal slot (6) in the direction of the span and in the vicinity of the leading edge (4). Furthermore, an actuator device (14) inside said aerodynamic element is capable of sliding the edges (6A and 6R) of the slot (6) relative to each other.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: June 26, 2012
    Assignee: Office National d'Etudes et de Recherches Aerospatiales
    Inventors: Hugues Mercier des Rochettes, Didier Joly, Léon Buchaniek
  • ELONGATED, TORSION-DEFORMABLE AERODYNAMIC ELEMENT
    Publication number: 20100258680
    Abstract: The invention relates to an elongated, torsion-deformable aerodynamic element, in which the upper surface (2) is continuous while the lower surface (3) comprises a longitudinal slot (6) in the direction of the span and in the vicinity of the leading edge (4). Furthermore, an actuator device (14) inside said aerodynamic element is capable of sliding the edges (6A and 6R) of the slot (6) relative to each other.
    Type: Application
    Filed: December 3, 2008
    Publication date: October 14, 2010
    Applicant: ONERA (Office National d'Etudes et de Recherches Aérospatiales)
    Inventors: Hugues Mercier Des Rochettes, Didier Joly, Léon Buchaniek
  • Sandwich-structure flat actuator and application to structural torsion
    Patent number: 7726603
    Abstract: The present invention relates to a sandwich-structure flat active actuator that is symmetrical relative to the mid-plane comprising at least one piezoelectric flat layer having an active direction superpose and fixedly attached to at least one passive flat layer of fabric with rigid warp and weft oriented in two directions forming a mesh; the two directions of each layer of fabric are the same. The active direction of each piezoelectric layer is oriented along one and the same diagonal of the mesh of the layers of fabric. The invention is also aimed at a device consisting of two actuators mounted head-to-tail. The invention applies to the active torsion of structures such as, for example, a helicopter blade.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: June 1, 2010
    Assignee: ONERA (Office National d'Etudes et de Recherches Aerospatiales)
    Inventors: Hugues Mercier Des Rochettes, Léon Buchaniek, Didier Joly
  • Sandwich-structure flat actuator and application to structural torsion
    Publication number: 20070205332
    Abstract: The present invention relates to a sandwich-structure flat active actuator that is symmetrical relative to the mid-plane comprising at least one piezoelectric flat layer having an active direction superpose and fixedly attached to at least one passive flat layer of fabric with rigid warp and weft oriented in two directions forming a mesh; the two directions of each layer of fabric are the same. The active direction of each piezoelectric layer is oriented along one and the same diagonal of the mesh of the layers of fabric. The invention is also aimed at a device consisting of two actuators mounted head-to-tail. The invention applies to the active torsion of structures such as, for example, a helicopter blade.
    Type: Application
    Filed: November 16, 2006
    Publication date: September 6, 2007
    Applicant: ONERA
    Inventors: Hugues Mercier Des Rochettes, Leon Buchaniek, Didier Joly