US Patent Issued to RTX on Sept. 8 for "Polymeric foams for hollow cavities" (Connecticut, Massachusetts Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,627, issued on Sept. 8, was assigned to RTX Corp. (Farmington, Conn.).

"Polymeric foams for hollow cavities" was invented by Kerry Lynn Davis-Amendola (Wethersfield, Conn.), John Harner (Florence, Mass.) and David J. Mathiau Jr. (East Hartford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow fan blade comprises a sheath, an airfoil and a cover. The sheath forms a pressure side wall and has an exterior surface. The airfoil forms a suction side wall and has an exterior surface. There are a plurality of ribs extending between the pressure side wall and the suction side wall, where the plurality of ribs partition the hollow airfoil into on...