Patents by Inventor Christian Barthelemy

Christian Barthelemy 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: 11332837
    Abstract: The invention relates to an electrode material, preferably an inert anode material comprising at least a metal core and a cermet material, characterized in that: said metal core contains at least one nickel (Ni) and iron (Fe) alloy, said cermet material comprises at least as percentages by weight: 45 to 80% of a nickel ferrite oxide phase (2) of composition NixFeyMzO4 with 0.60 ?x?0.90; 1.90?y?2.40; 0.00?z?0.20 and M being a metal selected from aluminum (Al), cobalt (Co), chromium (Cr), manganese (Mn), titanium (Ti), zirconium (Zr), tin (Sn), vanadium (V), niobium (Nb), tantalum (Ta) and hafnium (Hf) or being a combination of these metals, 15 to 45% of a metallic phase (1) comprising at least one alloy of nickel and copper.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 17, 2022
    Assignee: ELYSIS LIMITED PARTNERSHIP
    Inventors: Christian Barthelemy, Sylvie Bouvet, Armand Gabriel, Veronique Laurent, Ariane Marmottant
  • Patent number: 10415122
    Abstract: A cermet material includes as mass percentages, at least: 50% to 90% of a metallic phase containing an alloy of copper (Cu) and nickel (Ni), and 10% to 50% of an oxide phase containing at least iron, nickel and oxygen with the following proportion by mass of Ni: 0.2%?Ni?17%. An electrode, preferably an anode, may include this cermet material.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: September 17, 2019
    Assignee: ELYSIS LIMITED PARTNERSHIP
    Inventors: Christian Barthelemy, Ariane Marmottant, Véronique Laurent, Sylvie Bouvet, Vincent Stabrowski
  • Publication number: 20180073109
    Abstract: A cermet material includes as mass percentages, at least: 50% to 90% of a metallic phase containing an alloy of copper (Cu) and nickel (Ni), and 10% to 50% of an oxide phase containing at least iron, nickel and oxygen with the following proportion by mass of Ni: 0.2%?Ni?17%. An electrode, preferably an anode, may include this cermet material.
    Type: Application
    Filed: March 23, 2016
    Publication date: March 15, 2018
    Applicant: Rio Tinto Alcan International Limited
    Inventors: Christian BARTHELEMY, Ariane MARMOTTANT, Véronique LAURENT, Sylvie BOUVET, Vincent STABROWSKI
  • Publication number: 20170130351
    Abstract: The invention relates to an electrode material, preferably an inert anode material comprising at least a metal core and a cermet material, characterized in that: said metal core contains at least one nickel (Ni) and iron (Fe) alloy, said cermet material comprises at least as percentages by weight: 45 to 80% of a nickel ferrite oxide phase (2) of composition NixFeyMzO4 with 0.60 ?x?0.90; 1.90?y?2.40; 0.00?z?0.20 and M being a metal selected from aluminum (Al), cobalt (Co), chromium (Cr), manganese (Mn), titanium (Ti), zirconium (Zr), tin (Sn), vanadium (V), niobium (Nb), tantalum (Ta) and hafnium (Hf) or being a combination of these metals, 15 to 45% of a metallic phase (1) comprising at least one alloy of nickel and copper.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 11, 2017
    Inventors: Christian Barthelemy, Sylvie Bouvet, Armand Gabriel, Véronique Laurent, Ariane Marmottant
  • Publication number: 20140037984
    Abstract: The present invention relates to aluminum-lithium alloys in general and, in particular, such products as used in the aircraft industry and the welding of these.
    Type: Application
    Filed: May 14, 2013
    Publication date: February 6, 2014
    Applicant: CONSTELLIUM FRANCE
    Inventors: Franck Eberl, Stephane Jambu, Christian Barthelemy, Gaelle Pouget
  • Patent number: 8210421
    Abstract: A process for the manufacture of plated strips comprising at least two layers of different metals or alloys. The process allows subsequent separation of different cropped layers resulting from shearing the plated strips. The process comprises preparing plates corresponding to each of the plating layers, superimposing and assembly of these plates to form a composite plate, hot and possibly cold rolling of this composite plate to obtain a plated strip, and shearing of cropping areas during or after rolling. In one embodiment, prior to superimposing the different plates, an anti-sticking agent is applied to the cropping areas of at least one of the surfaces of the plates which will be in contact with each other.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: July 3, 2012
    Assignee: Constellium France
    Inventors: Sandrine Dulac, Christian Barthelemy, Sylvain Henry, Armand Gabriel
  • Publication number: 20110108170
    Abstract: The present invention relates to aluminum-lithium alloys in general and, in particular, such products as used in the aircraft industry and the welding of these.
    Type: Application
    Filed: July 3, 2009
    Publication date: May 12, 2011
    Applicant: ALCAN RHENALU
    Inventors: Frank Eberl, Stephane Jambu, Christian Barthelemy, Gaelle Pouget
  • Publication number: 20080271996
    Abstract: This invention relates to electrolytic cells used for production of aluminium. The side walls (8) of the pot surrounding its crucible (4, 4?) include a part (13) made of a porous material over at least one fraction of their height and/or their thickness, to enable a heat transfer gas to circulate, the part (13) made of a porous material being connected to heat transfer gas inlet means (15) and outlet means (16), so as to make a heat exchanger in order to recover heat energy lost through the sides of the pot.
    Type: Application
    Filed: November 6, 2006
    Publication date: November 6, 2008
    Applicant: ALUMINUM PECHINEY
    Inventors: Airy-Pierre Lamaze, Richard Laucournet, Christian Barthelemy
  • Patent number: 7256232
    Abstract: The purpose of the invention is a coating precursor comprising a silicone resin, a mineral filler and an organic solvent capable of dissolving the said resin and putting the said mineral filler into suspension, the said silicone resin and the said mineral filler being capable of chemically reacting so as to produce a solid layer on a substrate after the organic solvent has evaporated and a cohesive refractory layer after a calcination operation. Another purpose of the invention is a method for coating a given surface of a substrate with at least one refractory layer containing silicon in which the substrate is coated with a coating precursor according to the invention so as to form a green layer and a heat treatment is carried out to calcine the said green layer and to form a cohesive refractory layer. The invention is a means of obtaining a protective coating capable of resisting oxidizing environments, liquid metal and solid or molten salt.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: August 14, 2007
    Assignees: Aluminium Pechiney, Pechiney Rhenalu
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy, Thomas Spadone, Robert Rey-Flandrin
  • Patent number: 7238390
    Abstract: The purpose of the invention is a coating precursor comprising a silicone resin and a mineral filler capable of chemically reacting so as to produce a solid layer on a substrate and a cohesive refractory layer after a calcination operation. The precursor may also include an additive capable of reducing its viscosity. Another purpose of the invention is a method for coating a given surface of a substrate with at least one refractory layer containing silicon in which the substrate is coated with a coating precursor according to the invention so as to form a green layer and a heat treatment is carried out to calcine the said green layer and to form a cohesive refractory layer. The invention is a means of obtaining a protective coating capable of resisting oxidising environments, liquid metal and a solid or molten salt.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: July 3, 2007
    Assignees: Aluminium Pechiney, Pechiney Rhenalu
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy, Thomas Spadone, Robert Rey-Flandrin
  • Publication number: 20070031695
    Abstract: A process for the manufacture of plated strips comprising at least two layers of different metals or alloys. The process allows subsequent separation of different cropped layers resulting from shearing the plated strips. The process comprises preparing plates corresponding to each of the plating layers, superimposing and assembly of these plates to form a composite plate, hot and possibly cold rolling of this composite plate to obtain a plated strip, and shearing of cropping areas during or after rolling. In one embodiment, prior to superimposing the different plates, an anti-sticking agent is applied to the cropping areas of at least one of the surfaces of the plates which will be in contact with each other.
    Type: Application
    Filed: June 1, 2004
    Publication date: February 8, 2007
    Inventors: Sylvain Henry, Armand Gabriel, Sandrine Dulac, Christian Barthelemy
  • Patent number: 7125539
    Abstract: The invention concerns an additive-containing ground calcined alumina used as constituent of a refractory material precursor characterized in that it comprises an organofunctional silane, the organic function being typically an epoxy function, an alkyl function, an alcohol function or a diol function. Preferably said organofunctional silane is an oxyranyl-alkyl-silane, of chemical formula C9H20O5Si. Said additive-containing alumina can be obtained by adding said organofunctional silane during grinding to take advantage of its anti-caking properties, the intimate and homogeneous mixture being obtained as a result of grinding. It may also result from a post-grinding mixing.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: October 24, 2006
    Assignee: Aluminium Pechiney
    Inventors: Nicolas Martin, Christian Barthelemy
  • Patent number: 6916870
    Abstract: The invention concerns fibre-free precursor pastes of refractory material characterised in that they contain an elastomeric polymer filled with alumina and alumina hydrate and a silylating agent, generating Si—O bonds. The invention also concerns the method for making said paste and the material and the use thereof.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: July 12, 2005
    Assignees: Aluminium Pechiney, Porteret Beaulieu Industrie SA
    Inventors: Christian Barthelemy, Serge Marsaud, Luc Nicolas
  • Publication number: 20040249039
    Abstract: The purpose of the invention is a coating precursor comprising a silicone resin, a mineral filler and an organic solvent capable of dissolving the said resin and putting the said mineral filler into suspension, the said silicone resin and the said mineral filler being capable of chemically reacting so as to produce a solid layer on a substrate after the organic solvent has evaporated and a cohesive refractory layer after a calcination operation. Another purpose of the invention is a method for coating a given surface of a substrate with at least one refractory layer containing silicon in which the substrate is coated with a coating precursor according to the invention so as to form a green layer and a heat treatment is carried out to calcine the said green layer and to form a cohesive refractory layer. The invention is a means of obtaining a protective coating capable of resisting oxidising environments, liquid metal and solid or molten salt.
    Type: Application
    Filed: July 8, 2004
    Publication date: December 9, 2004
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy, Thomas Spadone, Robert Rey-Flandrin
  • Publication number: 20040247520
    Abstract: The invention concerns an additive-containing ground calcined alumina used as constituent of a refractory material precursor characterized in that it comprises an organofunctional silane, the organic function being typically an epoxy function, an alkyl function, an alcohol function or a diol function. Preferably said organofunctional silane is an oxyranyl-alkyl-silane, of chemical formula C9H20O5Si. Said additive-containing alumina can be obtained by adding said organofunctional silane during grinding to take advantage of its anti-caking properties, the intimate and homogeneous mixture being obtained as a result of grinding. It may also result from a post-grinding mixing.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 9, 2004
    Inventors: Nicolas Martin, Christian Barthelemy
  • Publication number: 20040249038
    Abstract: The purpose of the invention is a coating precursor comprising a silicone resin and a mineral filler capable of chemically reacting so as to produce a solid layer on a substrate and a cohesive refractory layer after a calcination operation. The precursor may also include an additive capable of reducing its viscosity. Another purpose of the invention is a method for coating a given surface of a substrate with at least one refractory layer containing silicon in which the substrate is coated with a coating precursor according to the invention so as to form a green layer and a heat treatment is carried out to calcine the said green layer and to form a cohesive refractory layer. The invention is a means of obtaining a protective coating capable of resisting oxidising environments, liquid metal and a solid or molten salt.
    Type: Application
    Filed: July 8, 2004
    Publication date: December 9, 2004
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy, Thomas Spadone, Robert Rey-Flandrin
  • Publication number: 20040197482
    Abstract: The invention concerns a coating precursor comprising a silicone resin, a metal compound and an organic solvent capable of dissolving said silicone and of suspending said metal compound, said silicone resin and said metal compound being capable of chemically reacting so as to produce a solid layer on a substrate after the organic solvent has evaporated and a cohesive refractory layer after a calcination process. The invention also concerns a method for coating a specific surface of a substrate with at least a refractory silicon-containing layer which consists in coating the substrate with a coating precursor of the invention, so as to form a raw layer and carrying out a heat treatment so as to calcine said raw layer and form a cohesive refractory layer. The invention enables to obtain a protective coating resistant to oxidizing environments, liquid metal or molten salt.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 7, 2004
    Inventors: Airy-Pierre Lamaze, Christian Barthelemy
  • Publication number: 20040012111
    Abstract: The invention concerns fibre-free precursor pastes of refractory material characterised in that they contain an elastomeric polymer filled with alumina and alumina hydrate and a silylating agent, generating Si—O bonds. The invention also concerns the method for making said paste and the material and the use thereof.
    Type: Application
    Filed: December 10, 2002
    Publication date: January 22, 2004
    Inventors: Christian Barthelemy, Serge Marsaud, Luc Nicolas