Patents by Inventor Maxime CHAMPAGNAC

Maxime CHAMPAGNAC 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).

  • Method for checking the leakproofness of a leakproof and thermally insulating tank for storing a fluid
    Patent number: 12117129
    Abstract: A method for checking the sealing of a sealed tank for storing a liquefied gas at low temperature, the tank having an inner hull and a secondary sealing membrane, a secondary space that is arranged between the inner hull and the secondary sealing membrane, a primary sealing membrane and a primary space that is arranged between the primary sealing membrane and the secondary sealing membrane is disclosed. The method has the following main steps: generating a pressure lower than the pressure of the primary space in the secondary space using a suction device, measuring the temperature of an outer surface of the inner hull, and detecting the location of a sealing defect of the secondary sealing membrane in the form of a cold spot on the outer surface of the inner hull.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 15, 2024
    Assignee: GAZTRANSPORT ET TECHNIGAZ
    Inventors: Maxime Champagnac, Pierre Jolivet, Mathieu Petitpas, Mael Bleomelen, Damien Brenac, Laurent Spittael, Vincent Briatte, Julien Glory
  • METHOD FOR LEAK TESTING A SEALED AND THERMALLY INSULATING TANK FOR STORING A FLUID
    Publication number: 20230393012
    Abstract: A method is described for checking the sealing of a sealed and thermally insulating tank for storing a liquefied gas at low temperature. The tank has a primary space and a secondary space where, in order to perform the check, a difference in pressure is created between the two spaces at least some of the inert gas injected into the primary space is recovered via at least one secondary outlet of the secondary space so as to be reinjected into the primary space.
    Type: Application
    Filed: October 11, 2021
    Publication date: December 7, 2023
    Inventors: Maxime CHAMPAGNAC, Pierre JOLIVET, Mael BLEOMELEN
  • METHOD FOR CHECKING THE LEAKPROOFNESS OF A LEAKPROOF AND THERMALLY INSULATING TANK FOR STORING A FLUID
    Publication number: 20220034453
    Abstract: A method for checking the sealing of a sealed tank for storing a liquefied gas at low temperature, the tank having an inner hull and a secondary sealing membrane, a secondary space that is arranged between the inner hull and the secondary sealing membrane, a primary sealing membrane and a primary space that is arranged between the primary sealing membrane and the secondary sealing membrane is disclosed. The method has the following main steps: generating a pressure lower than the pressure of the primary space in the secondary space using a suction device, measuring the temperature of an outer surface of the inner hull, and detecting the location of a sealing defect of the secondary sealing membrane in the form of a cold spot on the outer surface of the inner hull.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 3, 2022
    Inventors: Maxime CHAMPAGNAC, Pierre JOLIV, Mathieu PETITPAS, Mael BLEOMEL, Damlen BRENAC, Laurent SPITTAEL, Vincent BRIATTE, Julien GLORY