Patents by Inventor Jean-François Lavigne

Jean-François Lavigne 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).

  • Gearbox for Electric Motors
    Publication number: 20120208661
    Abstract: A gearbox allowing the interconnection of two electric motors to an output shaft is described herein. The gearbox includes a tensioning assembly moving the output shaft away from input shafts.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 16, 2012
    Inventors: Jean-François Lavigne, François Messier
  • Cooling assembly for electric machine
    Patent number: 7402924
    Abstract: A cooling assembly including a generally cylindrical body to be inserted inside the generally cylindrical internal stator of an electric machine is described herein. The body includes a cylindrical external contact surface configured and sized to contact the internal surface of the stator. The bottom surface of the body is machine with a channel that is partially closed by a cover to yield a peripheral fluid passage inside the body. An inlet and an outlet aperture are provided.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: July 22, 2008
    Assignee: TM4 Inc.
    Inventors: Louis-Philippe Bibeau, Jane Roundell, Jean-François Lavigne
  • Cooling assembly for electric machine
    Publication number: 20060273668
    Abstract: A cooling assembly including a generally cylindrical body to be inserted inside the generally cylindrical internal stator of an electric machine is described herein. The body includes a cylindrical external contact surface configured and sized to contact the internal surface of the stator. The bottom surface of the body is machine with a channel that is partially closed by a cover to yield a peripheral fluid passage inside the body. An inlet and an outlet aperture are provided.
    Type: Application
    Filed: May 24, 2006
    Publication date: December 7, 2006
    Inventors: Louis-Philippe Bibeau, Jane Roundell, Jean-Francois Lavigne
  • Cooling device for electric circuit
    Publication number: 20050284611
    Abstract: A cooling device to which an electric circuit may be mounted includes a cooling body provided with a front edge having bores forming V-shaped channels inside the body. Intersecting V-shaped channels are closed by plugs to thereby define a continuous cooling circuit inside the cooling body.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 29, 2005
    Inventors: Louis-Philippe Bibeau, Jean-François Lavigne