Patents by Inventor Martine Dauchier

Martine Dauchier 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).

  • Patent number: 7727448
    Abstract: A fiber structure for forming the reinforcement of a part to be made is placed in a mold (22) having at least one wall formed by a flexible membrane, and then a resin composition is injected into the mold, the composition having a volatile material content of less than 25% by weight and being at a temperature of a value such that its viscosity lies in the range 0.1 Pa·s to 0.3 Pa·s. The resin is polymerized in the mold placed in an enclosure (20) with temperature being raised progressively and with polymerization including at least a final stage of polymerization under pressure in order to obtain a composite material part presenting residual porosity of less than 11% by volume.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 1, 2010
    Assignee: SNECMA Propulsion Solide
    Inventors: Brigitte Boutefeu, Martine Dauchier, Marie-Laure Fages, Jean-Pierre Cauchois
  • Publication number: 20080128938
    Abstract: A fiber structure for forming the reinforcement of a part to be made is placed in a mold (22) having at least one wall formed by a flexible membrane, and then a resin composition is injected into the mold, the composition having a volatile material content of less than 25% by weight and being at a temperature of a value such that its viscosity lies in the range 0.1 Pa·s to 0.3 Pa·s. The resin is polymerized in the mold placed in an enclosure (20) with temperature being raised progressively and with polymerization including at least a final stage of polymerization under pressure in order to obtain a composite material part presenting residual porosity of less than 11% by volume.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 5, 2008
    Inventors: Brigitte Boutefeu, Martine Dauchier, Marie-Laure Pages, Jean-Pierre Cauchois