Patents by Inventor Didier Marchand

Didier Marchand 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).

  • Flexible pipe for conveying hydrocarbons having a high corrosion resistance, and method for making same
    Patent number: 9341288
    Abstract: A flexible tubular duct for conveying corrosive fluids and used in the filed of petroleum extraction at sea. A flexible tubular duct includes at least one inner carcass (2) and a polymer sealing sheath (3). The inner carcass has a reinforcement metal profile (7) that is helically wound. The reinforcement metal profile (7) is made of an alloy having the following weight composition: 30 to 32% of Ni; 26 to 28% of Cr; 6 to 7% of Mo; 0.10 to 0.3% of N; 0.015% of C; 2% at most of Mn; 0.5 to 1.5% of Cu; 0.5% at most of impurities, the remainder consisting of Fe.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: May 17, 2016
    Assignee: TECHNIP FRANCE
    Inventor: Didier Marchand
  • FLEXIBLE PIPE FOR CONVEYING HYDROCARBONS HAVING A HIGH CORROSION RESISTANCE, AND METHOD FOR MAKING SAME
    Publication number: 20110162750
    Abstract: A flexible tubular duct for conveying corrosive fluids and used in the filed of petroleum extraction at sea. A flexible tubular duct includes at least one inner carcass (2) and a polymer sealing sheath (3). The inner carcass has a reinforcement metal profile (7) that is helically wound. The reinforcement metal profile (7) is made of an alloy having the following weight composition: 30 to 32% of Ni; 26 to 28% of Cr; 6 to 7% of Mo; 0.10 to 0.3% of N; 0.015% of C; 2% at most of Mn; 0.5 to 1.5% of Cu; 0.5% at most of impurities, the remainder consisting of Fe.
    Type: Application
    Filed: July 27, 2009
    Publication date: July 7, 2011
    Inventor: Didier Marchand
  • Process for the MIG welding of nickel and nickel alloys with a shielding gas based on argon and CO2
    Patent number: 6596971
    Abstract: Process for the MIG welding of nickel and nickel alloys, with the use of a gas shield for at least part of the welding zone, in which process the gas shield is a gas mixture containing from 0.05% to 0.5% CO2, the balance being argon. Advantageously, the gas mixture also contains, by volume, from 15 to 50% helium, preferably from 17% to 30% helium, or from 0.1% to 10% hydrogen by volume and preferably from 1% to 7% hydrogen by volume.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: July 22, 2003
    Assignee: L'Air Liquide-Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Laurent Biskup, Didier Marchand, Jean-Marie Fortain, Jean-Yves Mouton
  • Process and gaseous mixture for arc welding of aluminium components
    Patent number: 5667703
    Abstract: The arc welding, with a refractory electrode, using alternating current, is performed with a gaseous protective mixture including at the location of the weld, at least 50%, typically between 60 and 80% of helium and at least 300 vpm, typically between 400 and 800 vpm, of nitrogen, the remainder being argon.Application to manual or automatic welding of aluminium components.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: September 16, 1997
    Assignee: L'Air Liquide, Societe Anonyme pour L'Etude et L'Exploitation des Procedes Georges Claude
    Inventors: Richard Soula, Didier Marchand, Henri Diot
  • Process and gaseous mixture for arc welding of aluminium components
    Patent number: 5667702
    Abstract: The arc welding, with a refractory electrode, using alternating current, is performed with a gaseous protective mixture employing, at the location of the weld, at least 60%, typically between 70 and 80% of helium and more than 1000 vpm, typically between 1100 and 1200 vpm, of carbon dioxide, the remainder being argon.Application to manual or automatic welding of aluminium components.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: September 16, 1997
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Richard Soula, Didier Marchand, Henri Diot