ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,427, issued on Oct. 20, was assigned to Sumitomo Riko Co. Ltd. (Aichi, Japan).
"Liquid-filled tubular vibration damping device" was invented by Kazuki Hotta (Komaki, Japan) and Katsuzou Okada (Komaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid-filled tubular vibration damping device including: an inner axial member; an intermediate sleeve made of synthetic resin and formed by twin sleeve divisions and divided in a circumferential direction; a main rubber elastic body connecting the inner axial member and a tubular part of the intermediate sleeve; an outer tubular member receiving the tubular part inserted therein; twin liquid cham...