Patents by Inventor Michael John Flowerday

Michael John Flowerday 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).

  • Axial pole motor with specific relative rotor and stator structure
    Patent number: 6534894
    Abstract: An axial pole motor includes a stator (9) and a rotor (3) which face one another across a plane perpendicular to the rotor axis, the stator having coil windings (12) substantially uniformly circumferentially spaced and lying in planes substantially perpendicular to the rotor axis defining a number of stator poles (11), the rotor also including a number of rotor poles (4) comprising one or more permanent magnets. The number of stator poles (11) is different from the number of rotor poles (4) and the stator poles (11) and rotor poles (4) are of substantially the same size and shape to provide a pole overlap pattern in which when any one rotor pole completely covers a facing stator pole, the difference between the number of rotor poles and the number of stator poles which exist between that rotor pole and the next rotor pole which completely covers a facing stator pole is one.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: March 18, 2003
    Assignee: Illinois Tool Works Inc.
    Inventor: Michael John Flowerday