Patents by Inventor Pierre-Yves Brisson

Pierre-Yves Brisson 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).

  • Multi-layer cathode block
    Patent number: 8404090
    Abstract: A multi-layer cathode block (30) for an electrolytic cell (10) has at least a surface layer (32) with a surface expansion index and a second layer (34) with a second expansion index. The surface layer (32) includes a surface wetting agent in a first total amount. The second layer (34) includes a wetting agent in a second total amount. The surface layer (32) is directly superposed to the second layer (34). The second wetting agent in the second layer (34) includes metal boride precursors that react together to generate a metal boride component in situ when the cathode block (30) is exposed to start-up and operation conditions of the electrolytic cell (10). The second total amount is lower than the first total amount and is selected so as to minimize the difference between the expansion indexes of the surface layer (32) and the second layer (34).
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: March 26, 2013
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Jean Camire, Jules Bergeron, Pierre-Yves Brisson, Simon Leclerc
  • MULTI-LAYER CATHODE BLOCK
    Publication number: 20110073470
    Abstract: A multi-layer cathode block (30) for an electrolytic cell (10) has at least a surface layer (32) with a surface expansion index and a second layer (34) with a second expansion index. The surface layer (32) includes a surface wetting agent in a first total amount. The second layer (34) includes a wetting agent in a second total amount. The surface layer (32) is directly superposed to the second layer (34). The second wetting agent in the second layer (34) includes metal boride precursors that react together to generate a metal boride component in situ when the cathode block (30) is exposed to start-up and operation conditions of the electrolytic cell (10). The second total amount is lower than the first total amount and is selected so as to minimize the difference between the expansion indexes of the surface layer (32) and the second layer (34).
    Type: Application
    Filed: April 30, 2009
    Publication date: March 31, 2011
    Applicant: RIO TINTO ALCAN INTERNATIONAL LIMITED
    Inventors: Jean Camiré, Jules Bergeronère, Pierre-Yves Brisson, Simon Leclerc