Patents by Inventor Barry Mecrow

Barry Mecrow 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).

  • Core back of an electrical machine and method for making the same
    Patent number: 7064469
    Abstract: An essentially ring shaped core back for an electrical machine comprising a plurality of stacked, ring shaped sheets of soft magnetic material, a barrier of electrical resistance arranged between two adjacent sheets of soft magnetic material for reducing effects of eddy currents. At least each sheet of soft magnetic material in a subset of said plurality of stacked, ring shaped sheets of soft magnetic material includes a plurality of circumferentially arranged tooth openings that are extending axially through each sheet in said subset of said plurality of stacked, ring shaped sheets of soft magnetic material, additionally, each sheet of said subset of said plurality of stacked, ring shaped sheets of soft magnetic material includes a first inner closing portion and a second inner closing portion that are arranged between each tooth opening and an inner perimeter of said ring shaped sheet of soft magnetic material.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: June 20, 2006
    Assignee: Höganäs AB
    Inventors: Alan Jack, Barry Mecrow, Philip George Dickinson, Mats Persson, Chris Manning