ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,312, issued on July 8, was assigned to ETA Green Power Ltd. (Great Britain).
"Rotor position sensor system for a slotless motor" was invented by Liam Bowman (Hethel, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a slotless motor comprising a rotor position sensing element. The motor has a rotor having a rotational axis and a plurality of coil windings arranged into an integer N number of distinct blocks, each block being arranged about the rotational axis and having a gap between each adjacent pair of blocks. The rotor position element has a sensor ring having a sensor fixed to the sensor ring and a sen...