ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,891, issued on Nov. 18, was assigned to Windlift Inc. (Durham, N.C.).
"Roll control for airborne wind energy system" was invented by Andy Stough (Durham, N.C.), Mark Aull (Durham, N.C.), Bryce Phillips (Durham, N.C.) and Chris Gibson (Durham, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bridle system and roll control sheave for quickly and accurately directing the roll of an airborne wing in an airborne wind energy system is disclosed. A pair of medial bridle segments are connected to a sheave which is placed within the fuselage. A roll control motor is preferably connected to the sheave and is controlled by an electronic controller to rota...