ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,666, issued on Sept. 1, was assigned to Canature Health Technology Group Co. Ltd. (Shanghai).
"Dual-tank control valve structure" was invented by Hekun Lin (Shanghai) and Chao Zheng (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dual-tank control valve structure includes a main valve assembly connected to an auxiliary valve assembly by an upper opening connector and a central tube connector. The main valve assembly comprises: a valve body where a regeneration piston cavity and a switching piston cavity are formed. The regeneration piston cavity is sequentially divided into multiple cavities, and the endmost cavity communicates with the e...