ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,015, issued on Feb. 25, was assigned to The Boeing Co. (Arlington, Va.).
"Free play chatter suppression" was invented by Steven F. Griffin (Kihei, Hawaii) and Zackary L. Endsley (Kihei, Hawaii).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and method for suppressing free play chatter of a control surface of an aircraft. The free play chatter suppression apparatus includes a containment vessel connected to a control surface of an aircraft. A lossy material is contained within the containment vessel. A body is positioned within the lossy material. The deceleration of the body by the lossy fluid is transmitted to the control surface to dam...