Patents by Inventor Timothy Harris

Timothy Harris 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).

  • Sectoral core for magnetic bearing
    Patent number: 5095237
    Abstract: A rotary electrical machine comprises a rotor assembly and a stator assembly separated by an air gap. The stator is formed from discrete generally pie-shaped pole pieces having a progressively increasing radial slot to accommodate winding of the coil. The pole pieces are preferably wound from a grain oriented ferromagnetic tape to improve the permeability of the pole and its saturation level. Groups of poles may be separated into sectors. In an alternative embodiment, at least some of the pole pieces are formed from both a permanent magnet and ferromagnetic tape to provide a constant bias between the rotor and stator assemblies.
    Type: Grant
    Filed: January 10, 1991
    Date of Patent: March 10, 1992
    Assignee: Nova Corporation of Alberta
    Inventors: Theodor Bardas, Gordon Brailean, Timothy A. Harris, Vaclav Kulle, Cal Oleksuk