ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,319, issued on Aug. 25, was assigned to WEG Equipamentos Eletricos S/A (Jaragua do Sul, Brazil).
"Rotor with permanent magnets and permanent magnet slots having U-shape slots with curved ends and obtuse angles" was invented by Briam Cavalca Bork (Jaragua do Sul, Brazil) and Fernando Jose Luchini (Jaragua do Sul, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes a rotor package mounted on a shaft and a plurality of slot sets into which permanent magnets are inserted, each set of grooves comprises: a first radially outermost slot having a substantially U-shape with a central straight segment and two mirrored opposing lateral segme...