Abstract: MP-T II Machines are alternating current, two, three, or four or more phase machines of the multipolar type, i.e. machines whose torque is produced in a cylindrical current tube through axially oriented current flow in a plurality of turns between pairs of parallel permanent magnet poles attached to cylindrical concentric magnet tubes. Unlike MP-T machines, MP-T II machines use flat permanent magnets and may contain cooling cuffs as needed.

Abstract: MP-D Machines are direct current machines of the multipolar type, i.e. machines whose torque is produced in a cylindrical current tube through axially oriented current flow in a plurality of turns between pairs of parallel permanent magnet poles attached to cylindrical concentric magnet tubes. Unlike other multipolar type machines, MP-D machines' magnet tubes comprise a plurality of permanent magnets in the form of continuous circumferential sleeves. The current tube in MP-D machines remains stationary while at least one of the two magnet tubes rotates. MP-D machines may be powered or may generate direct current.