ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,015, issued on Aug. 5, was assigned to AMOTECH Co. LTD. (Incheon, South Korea).
"Hollow swivel actuator" was invented by Byung Soo Kim (Incheon, South Korea) and Jong Hwa Shin (Incheon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a hollow swivel actuator including: a lower housing in which a driving motor is arranged; and an upper housing in which three gear trains and three pinion gear units for reduction are arranged at intervals of 120 degrees. A rotor worm gear for transferring an output of the driving motor is coupled through gear engagement to a ring gear integrally formed on a rotational table to transfer reduced rot...