ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,064, issued on Jan. 13, was assigned to The Boeing Co. (Arlington, Va.).
"Drive shaft assembly for driven accessory devices" was invented by Arnold Smith (Everett, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive shaft assembly includes an outer shaft, an inner shaft, and an interface medium. The outer shaft defines a central channel. The inner shaft extends into the central channel and defines a clearance gap between an interior surface of the outer shaft and an exterior surface of the inner shaft. The interface medium is disposed in the clearance gap and rotationally couples the outer shaft and the inner shaft in an operational state o...