ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,044, issued on Oct. 21, was assigned to ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS Co. LTD. (Zhejiang, China).
"Electric ball valve and method for manufacturing electric valve" was invented by Haitao Chen (Zhejiang, China), Qikai Bian (Zhejiang, China) and Junjie Yang (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric ball valve, comprising: a shaft portion, a magnetic ring, and a Hall sensor, the Hall sensor being in electrical and signal connection with a circuit board, the shaft portion being connected to an output shaft and capable of rotating along with the output shaft, the magnetic ring being sleeved on the radial peripher...