Patents by Inventor Benoit Bardet

Benoit Bardet 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: 20220275528
    Abstract: An apparatus, also named transfer box or TB, for conveying an anode assembly outside of an electrolyte cell is described. An apparatus, also named cell preheater lifting beam or CPLB, for conveying an anode assembly or a cell pre-heater outside of an electrolyte cell is also disclosed. TB and CPLB are conjointly used for starting up the electrolytic cell or for replacing a spent anode assembly while maintaining the production of non-ferrous metal, such as aluminum or aluminium. The thermal insulation of the TB allows maintaining the anode temperature homogeneity and preventing thermal shocks when introducing the inert anodes into the hot electrolytic bath. TN and CPLB allow accurate positioning of anode assemblies or cell-preheaters over the electrolysis cell before achieving mechanical and electrical connections of the anode assembly or the cell pre-heater to the electrolysis cell. Several related methods for the operation of an electrolytic cell are also disclosed.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 1, 2022
    Inventors: Bruno PETITJEAN, Alain NOIZET, Benoit BARDET
  • Publication number: 20220275529
    Abstract: An apparatus, also named transfer box or TB, for conveying an anode assembly outside of an electrolyte cell is described. An apparatus, also named cell preheater lifting beam or CPLB, for conveying an anode assembly or a cell pre-heater outside of an electrolyte cell is also disclosed. TB and CPLB are conjointly used for starting up the electrolytic cell or for replacing a spent anode assembly while maintaining the production of non-ferrous metal, such as aluminum or aluminium. The thermal insulation of the TB allows maintaining the anode temperature homogeneity and preventing thermal shocks when introducing the inert anodes into the hot electrolytic bath. TN and CPLB allow accurate positioning of anode assemblies or cell-preheaters over the electrolysis cell before achieving mechanical and electrical connections of the anode assembly or the cell pre-heater to the electrolysis cell. Several related methods for the operation of an electrolytic cell are also disclosed.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 1, 2022
    Inventors: Bruno PETITJEAN, Alain NOIZET, Benoit BARDET
  • Patent number: 10697074
    Abstract: This cell (1) comprises a pot shell (2) having two longitudinal sides (18) which are symmetrical in relation to a longitudinal median plane (P) of the electrolytic cell (1), an anode assembly which can only move in vertical translation with respect to the pot shell (2), the anode assembly comprising an anode block (100) and a transverse anode support (200) extending at right angles to the longitudinal sides (18) of the pot shell (2), from which support the anode block (100) is suspended. The anode support (200) comprises two connecting portions (202) from which electrolysis current is supplied to the anode support (200), and the cell (1) comprises electrical connection conductors (20) electrically connected to the two connecting portions (202) of the anode support (200), the two connecting portions (202) being located on either side of the plane (P).
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 30, 2020
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Steeve Renaudier, Benoit Bardet, Yves Rochet, Denis Laroche, Olivier Martin
  • Patent number: 10513788
    Abstract: A cell includes a pot shell defining an opening through which an anode block is designed to be moved, said anode block being suspended from an anode support forming with said anode block an anode assembly mobile in relation to the pot shell, and a confinement chamber defining a closed volume above said opening for the containment of the gases generated during the production of aluminum, the anode support being connected to an electrical conductor to supply an electrolysis current to the anode block, the anode assembly is fully contained in the confinement chamber, and in that the electrical connection between the mobile electrical conductor and the anode support is made within the confinement chamber.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 24, 2019
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Olivier Martin, Christian Duval, Steeve Renaudier, Benoit Bardet
  • Patent number: 10358733
    Abstract: This aluminum smelter comprises a line of electrolytic cells arranged transversely to the line, one of the cells comprising anode assemblies and electrical conductors mounted and connecting the anode assemblies. Rising and connecting conductors extend upwardly along two opposite longitudinal edges of the cell. In addition, the aluminum smelter comprises a first electrical compensating circuit extending under the cell and which can be traversed by a first compensating current in the opposite direction to that of the electrolysis current, a second electrical compensating circuit extending on one side of the line that can be traversed by a second compensating current in the same direction as the electrolysis current.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 23, 2019
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Benoit Bardet, Steeve Renaudier
  • Patent number: 10344390
    Abstract: This aluminum smelter comprises a row of cells (50) arranged transversely in relation to the length of the row, the cells (50) individually comprising an anode (52), rising and connecting electrical conductors (54) running upwards along the two opposite longitudinal edges of the cell (50) to route the electrolysis current towards the anode (52), and a cathode (56) through which pass cathode conductors (55) connected to cathode outputs connected to linking conductors to route the electrolysis current to the rising and connecting electrical conductors of the next cell (50). Furthermore the aluminum smelter comprises a compensating electrical circuit separate from the electrical circuit through which the electrolysis current flows, running beneath the cells (50), through which a compensating current may flow beneath the cells (50) in a direction opposite to the overall direction of flow of the electrolysis current.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: July 9, 2019
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Steeve Renaudier, Benoit Bardet, Olivier Martin, Christian Duval
  • Publication number: 20180023207
    Abstract: This aluminum smelter comprises a line of electrolytic cells arranged transversely to the line, one of the cells comprising anode assemblies and electrical conductors mounted and connecting the anode assemblies. Rising and connecting conductors extend upwardly along two opposite longitudinal edges of the cell. In addition, the aluminum smelter comprises a first electrical compensating circuit extending under the cell and which can be traversed by a first compensating current in the opposite direction to that of the electrolysis current, a second electrical compensating circuit extending on one side of the line that can be traversed by a second compensating current in the same direction as the electrolysis current.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 25, 2018
    Inventors: Benoit Bardet, Steeve Renaudier
  • Patent number: 9598783
    Abstract: An aluminum smelter comprising: (i) a series of electrolytic cells, designed for the production of aluminum, forming one or more rows, (ii) a supply station designed to supply the series of electrolytic cells with an electrolysis current, the said electricity supply station comprising two poles, (iii) a main electrical circuit through which the electrolysis current flows, having two extremities each connected to one of the poles of the supply station, (iv) at least one secondary electrical circuit comprising an electrical conductor made of superconducting material through which a current flows, running along the row or rows of electrolytic cells, characterized in that the electrical conductor made of superconducting material in the secondary electrical circuit runs along the row or rows of electrolytic cells at least twice in such a way as to make several turns in series.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: March 21, 2017
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Christian Duval, Steeve Renaudier, Benoit Bardet, Olivier Martin, Stéphane Wan Tang Kuan
  • Publication number: 20160326661
    Abstract: This cell (1) comprises a pot shell (2) defining an opening through which an anode block (10) is designed to be moved, said anode block (10) being suspended from an anode support (8) forming with said anode block an anode assembly mobile in relation to the pot shell (2), and a confinement chamber (22) defining a closed volume above said opening for the containment of the gases generated during the production of aluminum, the anode support (8) being connected to an electrical conductor (26) to supply an electrolysis current to the anode block (10), the anode assembly is fully contained in the confinement chamber (22), and in that the electrical connection between the mobile electrical conductor (26) and the anode support (8) is made within the confinement chamber (22).
    Type: Application
    Filed: January 23, 2015
    Publication date: November 10, 2016
    Inventors: Olivier MARTIN, Christian DUVAL, Steeve RENAUDIER, Benoit BARDET
  • Publication number: 20160201208
    Abstract: This aluminum smelter comprises a row of cells (50) arranged transversely in relation to the length of the row, the cells (50) individually comprising an anode (52), rising and connecting electrical conductors (54) running upwards along the two opposite longitudinal edges of the cell (50) to route the electrolysis current towards the anode (52), and a cathode (56) through which pass cathode conductors (55) connected to cathode outputs connected to linking conductors to route the electrolysis current to the rising and connecting electrical conductors of the next cell (50). Furthermore the aluminum smelter comprises a compensating electrical circuit separate from the electrical circuit through which the electrolysis current flows, running beneath the cells (50), through which a compensating current may flow beneath the cells (50) in a direction opposite to the overall direction of flow of the electrolysis current.
    Type: Application
    Filed: July 30, 2014
    Publication date: July 14, 2016
    Inventors: Steeve Renaudier, Benoit Bardet, Olivier Martin, Christian Duval
  • Publication number: 20160186344
    Abstract: This cell (1) comprises a pot shell (2) having two longitudinal sides (18) which are symmetrical in relation to a longitudinal median plane (P) of the electrolytic cell (1), an anode assembly which can only move in vertical translation with respect to the pot shell (2), the anode assembly comprising an anode block (100) and a transverse anode support (200) extending at right angles to the longitudinal sides (18) of the pot shell (2), from which support the anode block (100) is suspended. The anode support (200) comprises two connecting portions (202) from which electrolysis current is supplied to the anode support (200), and the cell (1) comprises electrical connection conductors (20) electrically connected to the two connecting portions (202) of the anode support (200), the two connecting portions (202) being located on either side of the plane (P).
    Type: Application
    Filed: July 30, 2014
    Publication date: June 30, 2016
    Applicant: Rio Tinto Alcan International Limited
    Inventors: Steeve Renaudier, Benoit Bardet, Yves Rochet, Denis Laroche, Olivier Martin
  • Publication number: 20140209457
    Abstract: An aluminum smelter comprising: (i) a series of electrolytic cells, designed for the production of aluminum, forming one or more rows, (ii) a supply station designed to supply the series of electrolytic cells with an electrolysis current, the said electricity supply station comprising two poles, (iii) a main electrical circuit through which the electrolysis current flows, having two extremities each connected to one of the poles of the supply station, (iv) at least one electrical conductor made of superconducting material, characterized in that the electrical conductor made of superconducting material is placed wholly or partly within an enclosure forming a magnetic shield.
    Type: Application
    Filed: July 10, 2012
    Publication date: July 31, 2014
    Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITED
    Inventors: Christian Duval, Steeve Renaudier, Benoit Bardet, Olivier Martin, Stéphane Wan Tang Kuan
  • Publication number: 20140138241
    Abstract: An aluminum smelter comprising: (i) a series of electrolytic cells, designed for the production of aluminum, forming one or more rows, (ii) a supply station designed to supply the series of electrolytic cells with an electrolysis current, the said electricity supply station comprising two poles, (iii) a main electrical circuit through which the electrolysis current flows, having two extremities each connected to one of the poles of the supply station, (iv) at least one secondary electrical circuit comprising an electrical conductor made of superconducting material through which a current flows, running along the row or rows of electrolytic cells, characterized in that the electrical conductor made of superconducting material in the secondary electrical circuit runs along the row or rows of electrolytic cells at least twice in such a way as to make several turns in series.
    Type: Application
    Filed: July 10, 2012
    Publication date: May 22, 2014
    Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITED
    Inventors: Christian Duval, Steeve Renaudier, Benoit Bardet, Olivier Martin, Stéphane Wan Tang Kuan
  • Publication number: 20140138240
    Abstract: Aluminum smelter comprising: (i) a series of electrolytic cells, comprising an anode, a cathode and a pot shell equipped with a side wall and a bottom, each cathode including at least one cathode output, (ii) a main electric circuit through which an electrolysis current passes, including an electrical conductor connected to each cathode output of a cell N, and to the anode of a cell N+1, and (iii) a means to stabilize the electrolytic cells. At least one of the cathode outputs of the cathode of N passes through the bottom of the pot shell, and during the operation of N and N+1, the electrolysis current passes, in an upstream-downstream direction only, through each electrical conductor extending from each cathode output of N in the direction of N+1.
    Type: Application
    Filed: July 10, 2012
    Publication date: May 22, 2014
    Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITED
    Inventors: Olivier Martin, Steeve Renaudier, Benoit Bardet, Christian Duval