Patents by Inventor Stéphane Didier

Stéphane Didier 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).

  • Soundproof exhaust pipe for a turbine engine
    Patent number: 8297404
    Abstract: The soundproofed exhaust duct for a turbine engine comprises a perforated inner shell defining a flow passage, and a solid outer shell, the inner and outer shells defining between them a space that is closed at the upstream and downstream ends of said space. A core extends between the inner and outer shells at a distance therefrom, and contains at least one sound energy dissipating layer made up of hollow beads that are held against one another. A frame with upstream and downstream portions connected together by longitudinal members supports the core and partitions it into a plurality of boxes that are filled with hollow beads that are held between perforated textures, the frame being secured to the outer shell and/or to the inner shell via at least one of its upstream and downstream portions.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: October 30, 2012
    Assignee: Turbomeca
    Inventors: Jean-Baptiste Arilla, Pierre Michel Baude, Stephane Didier Durand, Isabelle Germaine Claude Ladeveze
  • SOUNDPROOF EXHAUST PIPE FOR A TURBINE ENGINE
    Publication number: 20110284318
    Abstract: The soundproofed exhaust duct for a turbine engine comprises a perforated inner shell defining a flow passage, and a solid outer shell, the inner and outer shells defining between them a space that is closed at the upstream and downstream ends of said space. A core extends between the inner and outer shells at a distance therefrom, and contains at least one sound energy dissipating layer made up of hollow beads that are held against one another. A frame with upstream and downstream portions connected together by longitudinal members supports the core and partitions it into a plurality of boxes that are filled with hollow beads that are held between perforated textures, the frame being secured to the outer shell and/or to the inner shell via at least one of its upstream and downstream portions.
    Type: Application
    Filed: January 14, 2010
    Publication date: November 24, 2011
    Applicant: TURBOMECA
    Inventors: Jean-Baptiste Arilla, Pierre Michel Baude, Stephane Didier Durand, Isabelle Germaine, Claude Ladeveze
  • Method for indivisibly modifying a plurality of sites in a microcircuit card non volatile memory, in particular a contactless card
    Patent number: 7370203
    Abstract: A method of connecting a card to a terminal including the following steps: a) on receiving corresponding respective commands from the terminal, it modifies the contents of the card memory by provisionally recording in the card memory each of said interdependent items of information without losing prior values corresponding to said items; and then b) the modifications are finalized either by all of them being confirmed or by all of them being discarded.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: May 6, 2008
    Assignee: La Regie Autonome des Transports Parisiens
    Inventors: Francois Grieu, Stéphane Didier