US Patent Issued to ASKOLL HOLDING S.r.l. a socio unico on March 25 for "Permanent magnet external rotor for electric motor, electric motor comprising said rotor and method for manufacturing said external rotor" (Italian Inventor)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,487, issued on March 25, was assigned to ASKOLL HOLDING S.r.l. a socio unico (Povolaro di Dueville, Italy).

"Permanent magnet external rotor for electric motor, electric motor comprising said rotor and method for manufacturing said external rotor" was invented by Elio Marioni (Dueville, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Permanent magnet external rotor (1) for an electric motor, comprising a cup-shaped body (2) provided with a bottom (20) and a side wall (21); at least one magnet (3), defining a plurality of poles and fixed inside said cup-shaped body (2); and a metal insert (4), defined by a helical spring fitted around the at le...