ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,725,744, issued on Sept. 1, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China) and Shanghai Liangxin Electrical Co. Ltd. (Shanghai).
"Operation apparatus for rotary switch and rotary switch" was invented by Jian Shi (Shanghai), Chen Song (Shanghai) and Yang Chang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "An operation apparatus for a rotary switch and a rotary switch relate to the field of switch technologies. The operation apparatus for a rotary switch includes a motion member and a fastener having an accommodating cavity. The motion member passes through the accommodating cavity, and the motion member is driven ...