ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,405, issued on Sept. 23, was assigned to XIAMEN HONGFA ELECTRIC POWER CONTROLS Co. LTD. (Xiamen, China).
"High-voltage DC relay with auxiliary contact" was invented by Shuming Zhong (Xiamen, China), Wenguang Dai (Xiamen, China) and Meng Wang (Xiamen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high-voltage DC relay with an auxiliary contact, includes two stationary contacts, a movable contact piece, a pushing rod, a coil assembly, a movable iron core and an auxiliary contact, the movable iron core is disposed in the coil assembly and is capable of moving up and down and is fixedly connected with the pushing rod; the movable contact piece...