ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,545, issued on Nov. 11, was assigned to HAIN YO ENTERPRISES Co. LTD. (Changhua County, Taiwan).
"Ceramic balancing check valve" was invented by Chia-Po Chang (Hemei Township, Changhua County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ceramic balancing check valve has a valve housing, a controller, a balancing valve unit, and a check valve unit. The valve housing has a main body having two side drainage holes, a control rod. The controller has an upper ceramic plate, a lower ceramic plate, and a base, the lower ceramic plate secured on the base, the upper ceramic plate capable of rotating relative to the lower ceramic plate. The control...