Patents by Inventor Nicolas Kopytowski

Nicolas Kopytowski 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: 5827419
    Abstract: An electrogalvanizing process, in which a strip is moved past an anode, plating solution is made to flow at a speed V with respect to the moving strip, and an electric current of current density J greater than 50 A/dm.sup.2 is passed between the strip and the anode, which comprises carrying out the deposition under conditions such that:J/J.sub.lim is less than or equal to 0.15;J.sup.2 /J.sub.lim is less than or equal to 22 A/dm.sup.2 ;where J.sub.lim is the limiting current density, corresponding to the current density plateau in the current versus potential curve characteristic of the plating solution flowing at the speed V in the vicinity of the strip. An electroplating cell of the radial type for implementing the process, in which cell the anode bed is continuous, is disclosed. The process facilitates the high-speed deposition of zinc which has low rugosity and is free of edge dendrites.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: October 27, 1998
    Assignee: Sollac (Societe Anonyme)
    Inventors: Joel Marsal, Nicolas Kopytowski, Alain Bello, Marie Lombardi, Isabelle Marolleau