ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,213, issued on Sept. 16, was assigned to Panasonic Motor (Hangzhou) Co. Ltd. (Zhejiang, China).
"Waterproof motor" was invented by Lei Zhang (Zhejiang, China) and Wei Xiao (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waterproof motor, which includes a stator arranged on a motor housing, a rotor arranged in the motor housing, a rotating shaft connected to the rotor and extending out of the motor housing, and a circuit board arranged in the motor housing. An inner end cap is arranged in the motor housing, between the rotor and the circuit board, which surround the rotating shaft and extends in the radial direction of the rotating...