ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,456, issued on Oct. 20.
"Water control valve" was invented by Chia-Po Chang (Changhua, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A precision ceramic water control valve with dual inlets and dual outlets may include a valve housing, and a rotating seat is installed in the valve housing. A sliding block, a blocking plate, a movable valve piece, and a fixed valve piece are sequentially stacked inside the valve housing beneath the rotating seat. A valve stem pivotally assembled at the central portion of the rotating seat is adapted to upward protrude out of the valve housing, and the valve stem comprises a pulling portion at the lower end th...