ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,033, issued on Aug. 5, was assigned to ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS Co. LTD. (Zhejiang, China).
"Electric valve" was invented by Xingkui Zhang (Zhejiang, China), Yunzhi Lan (Zhejiang, China) and Zhenshan Zhu (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric valve, comprising a lead screw and a valve element assembly, wherein the lead screw has an external thread section, the valve element assembly has an internal thread section, the valve element assembly and the lead screw are in threaded connection by the fitting of the internal thread section and the external thread section, and at least the portion o...