ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,760, issued on Dec. 9, was assigned to Sumitomo Riko Co. Ltd. (Aichi, Japan).
"Tubular vibration damping device" was invented by Mutsuki Nawaji (Aichi, Japan) and Takayoshi Yasuda (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tubular vibration damping device has a structure in which an inner shaft member is connected with an outer tube member made of synthetic resin by a body rubber elastic body. The outer tube member has a structure in which a tubular part extends in an axial direction from an inner peripheral end of a flange of an annular plate shape. A press fit rubber is fixed to an outer peripheral surface of the tubular part, a...