ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,873, issued on Nov. 3, was assigned to Zhejiang chuangge technology Co. ltd (Shaoxing, China).
"Valve plate electric locking mechanism" was invented by Han Fang (Shaoxing, China) and Ning Fang (Shaoxing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve plate electric locking mechanism, which comprises a lock rod, a lock head, an elastic return mechanism, a shell and a motor. The lock head comprises a seat body, a pyramid and a positioning bolt; the seat body is hinged in the shell and driven to rotate by the motor; the screw of the positioning bolt is in threaded connection with the pyramid; and the lock rod comprises a base rod part and ...