Patents by Inventor Denis Sirac

Denis Sirac 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).

  • Publication number: 20210119227
    Abstract: The invention relates to a bipolar plate for a fuel cell stack that extends in a vertical plane in the use position, the plate comprising opposed first and second transverse edges, upper and lower longitudinal edges, a central region arranged between the edges, a first opening for a heat transfer fluid inlet, a second opening for heat transfer fluid collection a third opening for an oxidant inlet, a fourth opening for oxidant collection, a fifth opening for the inlet of a fuel, a sixth opening for fuel collection, wherein the first, third and sixth openings are arranged in the first transverse edge and are arranged axially in relation to one another, the second, fourth and fifth openings are arranged in the second transverse edge and are arranged axially in relation to one another, and, in the vertical position of use of the plate: the sixth opening are arranged below the first and third openings, the fourth opening is arranged below the second and fifth openings, and the second opening is arranged above the
    Type: Application
    Filed: September 28, 2020
    Publication date: April 22, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Johan ANDRE, Camille BOUVIER, Eric CLAUDE, Nicolas JANNIN, Denis SIRAC, Didier ZAEPFFEL
  • Patent number: 9601786
    Abstract: Leakproofing device for a fuel cell intended to be interposed between an Electrodes Membrane Assembly and a polar or bipolar plate of a fuel cell unit, the device consisting of a rigid frame and of a leakproofing seal integral with the frame, the frame furnished with the leakproofing seal defining a plurality of apertures through the device, the apertures being delimited by the leakproofing seal.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: March 21, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Arnaud Cerceau, Alain Guinebert, Nicolas Jannin, Elisabeth Rossinot, Helene Trouve, Denis Sirac
  • Publication number: 20150263360
    Abstract: Leakproofing device for a fuel cell intended to be interposed between an Electrodes Membrane Assembly and a polar or bipolar plate of a fuel cell unit, the device consisting of a rigid frame and of a leakproofing seal integral with the frame, the frame furnished with the leakproofing seal defining a plurality of apertures through the device, the apertures being delimited by the leakproofing seal.
    Type: Application
    Filed: October 2, 2013
    Publication date: September 17, 2015
    Inventors: Arnaud Cerceau, Alain Guinebert, Nicolas Jannin, Elisabeth Rossinot, Helene Trouve, Denis Sirac
  • Patent number: 7968040
    Abstract: Method for fabricating a fluid connector for fuel cell system: (a) a thermoplastic parison (19) is extruded, (b) the parison is placed in a mould (10a, 10b), (c) an intermediate zone is created, in which the two walls of the parison are joined in a gastight manner, (d) a gas is blown inside the parison into each cavity of the mould, and (e) the mould is opened.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: June 28, 2011
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Xavier Roussin-Bouchard, Denis Sirac, Nancy Clary
  • Publication number: 20090104504
    Abstract: Method for fabricating a fluid connector for fuel cell system: (a) a thermoplastic parison (19) is extruded, (b) the parison is placed in a mould (10a, 10b), (c) an intermediate zone is created, in which the two walls of the parison are joined in a gastight manner, (d) a gas is blown inside the parison into each cavity of the mould, and (e) the mould is opened.
    Type: Application
    Filed: August 4, 2008
    Publication date: April 23, 2009
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Xavier ROUSSIN-BOUCHARD, Denis SIRAC, Nancy CLARY