ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,049, issued on June 30, was assigned to Chint Low Voltage Electrical Technology Co. Ltd. (China).

"Circuit breaker and quick tripping device thereof" was invented by Denggui Ao (Shanghai), Dengyu Lu (Shanghai), Hao Fu (Shanghai), Yongfu Xu (Shanghai), Xiaoqin Yuan (Shanghai), Lijun Yan (Shanghai) and Chuncui Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quick tripping device of a circuit breaker having a contact system that includes a moving contact mechanism and a static contact, wherein the moving contact mechanism includes a contact support and a moving contact, and a contact spring having two ends connected with the moving cont...