ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,889, issued on Aug. 12, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).

"Power supply system and switch unit" was invented by Jisheng Sun (Shanghai), Xiufeng Zhang (Dongguan, China) and Fugao Zhao (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power supply system includes a switch unit and an operating mechanism. The switch unit includes: an arc-extinguishing functional component, a fixed contact assembly, a moving contact, and a first magnet assembly. The arc-extinguishing functional component is located inside the arc-extinguishing functional component and can move relative to the fixed contact asse...