Patents by Inventor Marc Francis Vincent Dussac

Marc Francis Vincent Dussac 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).

  • Damping structure and applications
    Patent number: 7104372
    Abstract: A damping structure includes a member defining an internal cavity; an aggregate which includes at least solid bodies in contact and which completely fills the internal cavity; a rigid plate for closing off the internal cavity; and an elastic element which exerts elastic pressure on the rigid plate so as to constrain the aggregate. The member defining the cavity may be elongate with the internal cavity being formed longitudinally inside the member. At least some of said solid bodies may be hollow or solid, compact, made of different materials, of different shapes, and/or of different sizes.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 12, 2006
    Assignees: Eurocopter, Ateca
    Inventors: Marc Francis Vincent Dussac, Philippe Vie, Osmin Delverdier
  • Damping structure and applications
    Patent number: 6935472
    Abstract: A damping structure includes a member defining an internal cavity; an aggregate which includes at least solid bodies in contact and which completely fills the internal cavity; a rigid plate for closing off the internal cavity; and an elastic element which exerts elastic pressure on the rigid plate so as to constrain the aggregate. The member defining the cavity may be elongate with the internal cavity being formed longitudinally inside the member. At least some of said solid bodies may be hollow or solid, compact, made of different materials, of different shapes, and/or of different sizes.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: August 30, 2005
    Assignees: Eurocopter, Ateca
    Inventors: Marc Francis Vincent Dussac, Philippe Vie, Osmin Delverdier
  • Soundproofing panel, in particular structural or lining panel for a rotorcraft
    Patent number: 6851515
    Abstract: The invention concerns a sound-proofing panel, in particular a rotorcraft structural or lining panel: the sound-proofing panel (1) comprises at least two opposite plates (2, 3, 5, 6) forming between them a closed internal space (4), and an aggregate (7) including at least solid elements (8) in contact and which fills entirely said internal space (4).
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: February 8, 2005
    Assignees: Eurocopter, Ateca
    Inventors: Marc Francis Vincent Dussac, Philippe Vie, Osmin Delverdier
  • Damping structure and applications
    Publication number: 20030098389
    Abstract: A composition for reducing vibrations, including both damping structure borne vibrations and reducing radiated airborne noise. The composition is either a mixture of at least two different granular materials, or is a granular material having a bulk sound speed of less than 90 m/s. The damping properties of a mixture can be calculated from the bulk densities and stiffnesses of its individual components.
    Type: Application
    Filed: February 20, 2002
    Publication date: May 29, 2003
    Inventors: Marc Francis Vincent Dussac, Philippe Vie, Osmin Delverdier
  • Sound-proofing panel, in particular a rotorcraft structural or lining panel
    Publication number: 20030057017
    Abstract: The invention concerns a sound-proofing panel, in particular a rotorcraft structural or lining panel: the sound-proofing panel (1) comprises at least two opposite plates (2, 3, 5, 6) forming between them a closed internal space (4), and an aggregate (7) including at least solid elements (8) in contact and which fills entirely said internal space (4).
    Type: Application
    Filed: September 10, 2002
    Publication date: March 27, 2003
    Inventors: Marc Francis Vincent Dussac, Philippe Vie, Osmin Deverdier