US Patent Issued to SHENZHEN TILSWALL INNOVATION TECHNOLOGY on Jan. 20 for "Electric tool, motor and operating handle thereof" (Chinese Inventor)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,455, issued on Jan. 20, was assigned to SHENZHEN TILSWALL INNOVATION TECHNOLOGY Co. LTD. (Guangdong, China).

"Electric tool, motor and operating handle thereof" was invented by Liang Zhou (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motor includes a motor body and a motor shaft with a first end connected to an inside of the motor body and a second end protruding out of the motor body, wherein a first cross section of the motor shaft perpendicular to its axial direction is non-circular, whose shape and size are matched with the shape and size of a second cross section of an assembly hole for shaft in an operating handle perpendi...