Patents by Inventor Frederic Rouchaud

Frederic Rouchaud 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).

  • Resonant cavity device converting transverse dimensional variations induced by temperature variations into longitudinal dimensional variations
    Patent number: 6960969
    Abstract: A resonant cavity device comprises a waveguide body having a lateral wall extending in a longitudinal direction, having a first coefficient of thermal expansion, and delimiting a resonant cavity in conjunction with opposite first and second end walls. The first end wall has a second coefficient of thermal expansion lower than the first coefficient and has an internal face fastened to a first assembly comprising at least one main plate having a third coefficient of thermal expansion lower than the first coefficient and dimensions in a plane perpendicular to the longitudinal direction less than but substantially equal to those of the cavity.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: November 1, 2005
    Assignee: Alcatel
    Inventors: Bertrand Brevart, Frédéric Rouchaud, Michel Blanquet, Damien Pacaud
  • Resonant cavity device converting transverse dimensional variations induced by temperature variations into longitudinal dimensional variations
    Publication number: 20040212463
    Abstract: A resonant cavity device comprises a waveguide body having a lateral wall extending in a longitudinal direction, having a first coefficient of thermal expansion, and delimiting a resonant cavity in conjunction with opposite first and second end walls. The first end wall has a second coefficient of thermal expansion lower than the first coefficient and has an internal face fastened to a first assembly comprising at least one main plate having a third coefficient of thermal expansion lower than the first coefficient and dimensions in a plane perpendicular to the longitudinal direction less than but substantially equal to those of the cavity.
    Type: Application
    Filed: March 29, 2004
    Publication date: October 28, 2004
    Applicant: ALCATEL
    Inventors: Bertrand Brevart, Frederic Rouchaud, Michel Blanquet, Damien Pacaud