Patents by Inventor Francois Deffarges

Francois Deffarges 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).

  • Device for emitting an acoustic wave
    Patent number: 9544693
    Abstract: A device for emitting an acoustic wave includes a flared structural piece bearing at its base an electromechanical transducer and defining at its flared end an output surface. A mechano-acoustic coupler made of one piece is a solid piece and exhibits: a first portion for mounting on the transducer, a second portion extending from the first portion up to the level of the output surface, the coupler being suspended on the structural piece at the level of the second portion and the second portion having a cross-sectional area at the level of the output surface which is strictly greater than its cross-sectional area at the level of the first portion, and a third portion extending from the second portion, where the third portion has a cross-sectional area which is smaller than the output surface, the third portion including a cross-section of greater area than the output surface.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: January 10, 2017
    Assignee: NEXO
    Inventor: Francois Deffarges
  • DEVICE FOR EMITTING AN ACOUSTIC WAVE
    Publication number: 20140037128
    Abstract: A device for emitting an acoustic wave includes a flared structural piece bearing at its base an electromechanical transducer and defining at its flared end an output surface. A mechano-acoustic coupler made of one piece is a solid piece and exhibits: a first portion for mounting on the transducer, a second portion extending from the first portion up to the level of the output surface, the coupler being suspended on the structural piece at the level of the second portion and the second portion having a cross-sectional area at the level of the output surface which is strictly greater than its cross-sectional area at the level of the first portion, and a third portion extending from the second portion, where the third portion has a cross-sectional area which is smaller than the output surface, the third portion including a cross-section of greater area than the output surface.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 6, 2014
    Applicant: NEXO
    Inventor: Francois Deffarges
  • Sound-producing device with acoustic waveguide
    Patent number: 6585077
    Abstract: A sound-producing device includes an acoustical generator associated with a rigid acoustical waveguide. The waveguide has a first section aligned with the exit and a second section aligned with the entry and the two sections are connected by a curved reflecting surface having the shape of part of a conic section surface.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: July 1, 2003
    Inventors: Eric Vincenot, François Deffarges
  • Sound-producing device with acoustic waveguide
    Publication number: 20020029926
    Abstract: A sound-producing device includes an acoustical generator associated with a rigid acoustical waveguide. The waveguide has a first section aligned with the exit and a second section aligned with the entry and the two sections are connected by a curved reflecting surface having the shape of part of a conic section surface.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 14, 2002
    Inventors: Eric Vincenot, Francois Deffarges
  • Loud speaker
    Patent number: D500025
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: December 21, 2004
    Assignee: NEXO
    Inventors: Eric Vincenot, François Deffarges
  • Loudspeaker
    Patent number: D662077
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: June 19, 2012
    Assignee: Nexo
    Inventor: François Deffarges