ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,062, issued on Feb. 11.
"Hydraulic buffering leg cushion" was invented by Yi-Chang Wu (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic buffering leg cushion is mounted to a supporting platform. The hydraulic buffering leg cushion includes a leg cushion body, a movable unit, and a fixed connecting member. The leg cushion body is provided with a leg cushion accommodating space, and includes an upper cover, and a lower cover. The movable unit is received in the leg cushion accommodating space, and includes a piston, a membrane assembly, a rubber bowl, and a movable portion. The rubber bowl is clamped, at its outer circumferen...