ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,451, issued on Aug. 26, was assigned to REALMAN ROBOT Co. LTD. (Beijing).
"Small robot arm joint, and robot using same" was invented by Xulong Zhang (Beijing), Xusheng Hao (Beijing) and Suibing Zheng (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A small-scale robotic arm joint and a robot thereof are provided. In the small-scale robotic arm, multiple bearings are arranged at both ends and middle of a motor shaft; a sliding seal member is provided between a harmonic reducer and a motor; seal members are fitted on contact surfaces between a circular spline and a housing, as well as between the circular spline and the output end; a control bo...