Patents by Inventor Magdi Laoun

Magdi Laoun 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).

  • Stepping motor
    Patent number: 6509663
    Abstract: A stepping motor comprises a stator (3) with at least two magnetic circuits and a rotor (2) that is rotatably mounted on the stator through a single ball bearing having four contact points. The rotor comprises a mutipolar magnet (5) essentially in the form of a disc having a central opening (6). One rotor portion (7) is fixed at one radially external portion of the magnet (5), while one radially internal portion of the magnet is arranged within the air gap of said magnetic circuits.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: January 21, 2003
    Assignee: API Portescap
    Inventor: Magdi Laoun
  • Stepping motor
    Publication number: 20010043021
    Abstract: A stepping motor comprises a stator (3) with at least two magnetic circuits and a rotor (2) that is rotatably mounted on the stator through a single ball bearing having four contact points. The rotor comprises a multipolar magnet (5) essentially in the form of a disc having a central opening (6). One rotor portion (7) is fixed at one radially external portion of the magnet (5), while one radially internal portion of the magnet is arranged within the air gap of said magnetic circuits.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 22, 2001
    Inventor: Magdi Laoun