Patents by Inventor Francois J. Biais

Francois J. Biais 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).

  • Method of fabricating a rotor
    Patent number: 7051421
    Abstract: An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: May 30, 2006
    Assignee: General Motors Corporation
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • Interior permanent magnet rotor
    Patent number: 6703746
    Abstract: An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: March 9, 2004
    Assignee: General Motors Corporation
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • Method of fabricating a rotor for an electric traction motor
    Patent number: 6684483
    Abstract: A method of fabricating a rotor for an electric traction motor including the steps of forming cavities in the rotor, injecting magnetic material in a portion of the cavities, injecting nonmagnetic material in a portion of the cavities, and post-magnetizing the magnetic material.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: February 3, 2004
    Assignee: General Motors Corporation
    Inventors: Khwaja M. Rahman, Peter James Savagian, Francois J. Biais, Constantin C. Stancu
  • Auxiliary magnetizing winding for interior permanent magnet rotor magnetization
    Patent number: 6674205
    Abstract: A method and apparatus for fabricating a rotor for an electric traction motor including forming cavities in the rotor, injecting magnetic material in a portion of the cavities, configuring an electrical winding in a portion of the cavities, and post-magnetizing the magnetic material.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: January 6, 2004
    Assignee: General Motors Corporation
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • AUXILIARY MAGNETIZING WINDING FOR INTERIOR PERMANENT MAGNET ROTOR MAGNETIZATION
    Publication number: 20030209950
    Abstract: A method and apparatus for fabricating a rotor for an electric traction motor including forming cavities in the rotor, injecting magnetic material in a portion of the cavities, configuring an electrical winding in a portion of the cavities, and post-magnetizing the magnetic material.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 13, 2003
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • Interior permanent magnet rotor
    Publication number: 20030173852
    Abstract: An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor.
    Type: Application
    Filed: May 8, 2003
    Publication date: September 18, 2003
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • Interior permanent magnet rotor
    Publication number: 20030164655
    Abstract: An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor.
    Type: Application
    Filed: March 1, 2002
    Publication date: September 4, 2003
    Inventors: Francois J. Biais, Khwaja M. Rahman
  • Permanent magnet machine rotor
    Publication number: 20030052561
    Abstract: A method of fabricating a rotor for an electric traction motor including the steps of forming cavities in the rotor, injecting magnetic material in a portion of the cavities, injecting nonmagnetic material in a portion of the cavities, and post-magnetizing the magnetic material.
    Type: Application
    Filed: September 14, 2001
    Publication date: March 20, 2003
    Inventors: Khwaja M. Rahman, Peter James Savagian, Francois J. Biais, Constantin C. Stancu