Patents by Inventor Jean-Luc Leon-Dufour

Jean-Luc Leon-Dufour 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).

  • Stiffener stop with staggered slopes and panel fitted with such a stop
    Patent number: 7682682
    Abstract: The object of this invention is a stiffener stop in particular for a primary structural panel of the “skin+stiffener” type for aircraft, said stop consisting of an initial slope connected to the normal height of the stiffener and a final slope, wherein at least one interval having a slope nearly equal to zero with respect to the plane of the base skin in the stop area is inserted between the two aforesaid slopes.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: March 23, 2010
    Assignee: Airbus France
    Inventors: Jean-Luc Leon-Dufour, Bruno Sarpy
  • Device for the protection against and detection of impacts on the edges of a layered composite structure
    Publication number: 20060234007
    Abstract: The object of the invention is a device for the protection against and detection of impacts on the edges of superimposed layers (2) of a composite structure (1), in particular integrally stiffened panels with stiffeners (3), wherein a U-shaped edge shield (5) encloses an edge to be protected (4) and is bonded to the latter by any appropriate means.
    Type: Application
    Filed: May 3, 2005
    Publication date: October 19, 2006
    Inventors: Yves Durand, Jean-Luc Leon-Dufour
  • Stiffener stop with staggered slopes and panel fitted with such a stop
    Publication number: 20050211846
    Abstract: The object of this invention is a stiffener stop in particular for a primary structural panel of the “skin +stiffener” type for aircraft, said stop consisting of an initial slope connected to the nornal height of the stiffener and a final slope, wherein at least one interval having a slope nearly equal to zero with respect to the plane of the base skin in the stop area is inserted between the two aforesaid slopes.
    Type: Application
    Filed: February 18, 2005
    Publication date: September 29, 2005
    Inventors: Jean-Luc Leon-Dufour, Bruno Sarpy