Patents by Inventor Jean-Paul Petetin

Jean-Paul Petetin 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).

  • Placement process for elements of a self-stiffened panel of preimpregnated composite
    Patent number: 7270722
    Abstract: A process for placing elements of a self-stiffened panel of preimpregnated composite. The panel includes a base skin and a plurality of U-shaped stiffeners, with an interfacing structure including a nail and a nail-head. The process includes draping plies to form the base skin; placing and shaping at least one reinforcing ply on a set of punches; forming half-nails; placing a half-nail on the sides of each punch covered by the reinforcing ply; positioning the punches side by side in inverted U-positions; placing the nail-heads; compacting the set of punches; turning the punches 180 degrees; positioning the set of punches on the base skin; and withdrawing the set of U-shaped punches.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: September 18, 2007
    Assignee: Airbus France
    Inventors: Georges Navas, Jean-Paul Petetin, Michle Fontayne, Pierre Lafon, Guy Hellard
  • Placement process for elements of a self-stiffened panel of preimpregnated composite
    Publication number: 20050166501
    Abstract: A process for placing elements of a self-stiffened panel of preimpregnated composite. The panel includes a base skin and a plurality of U-shaped stiffeners, with an interfacing structure including a nail and a nail-head. The process includes draping plies to form the base skin; placing and shaping at least one reinforcing ply on a set of punches; forming half-nails; placing a half-nail on the sides of each punch covered by the reinforcing ply; positioning the punches side by side in inverted U-positions; placing the nail-heads; compacting the set of punches; turning the punches 180 degrees; positioning the set of punches on the base skin; and withdrawing the set of U-shaped punches.
    Type: Application
    Filed: November 30, 2004
    Publication date: August 4, 2005
    Inventors: Georges Navas, Jean-Paul Petetin, Michel Fontayne, Pierre Lafon, Guy Hellard