ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,478, issued on June 23, was assigned to Massachusetts Institute of Technology (Cambridge, Mass.).
"Bearingless split teeth flux reversal motor" was invented by Krishan Kant (Cambridge, Mass.) and David L. Trumper (Plaistow, N.H.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bearingless split tooth flux-reversal motor (FRM) for use with a pump, such as a centrifugal blood pump. In some embodiments, the motor has a magnet-free rotor and a magnetic configuration wherein the force generation is independent of the rotor angle, allowing for simple radial force generation using stator-fixed currents. The motor torque can be generated using commutated tw...