Patents by Inventor Stéphane Wan Tang Kuan

Stéphane Wan Tang Kuan 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: 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: 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