ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,531, issued on May 20, was assigned to RTX Corp. (Farmington, Conn.).
"Skin passageway trip strips" was invented by Jaime G. Ghigliotty Rosado (Cabo Rojo, Ore.), Brandon W. Spangler (Vernon, Conn.), David E. Gambardella (Tucson, Ariz.) and Benjamin B. Simpson (Rogersville, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A turbine engine airfoil element has: an airfoil having: an exterior surface including a pressure side and a suction side; and a plurality of spanwise passageways including: a plurality of main body passageways along a camber line; and a plurality of skin passageways between the main body passageways and the exterior surface, wh...