ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,898, issued on Oct. 21, was assigned to RTX Corp. (Farmington, Conn.).
"Blade spacer" was invented by Colin J. Kling (Souderton, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fan includes a rotor hub comprising a slot and a blade comprising an airfoil extending from a blade root in a first direction. The blade root is configured to be received in the slot. The fan also includes a deformable spacer situated between the rotor hub and the blade root in the slot, a first blade lock situated at a first side of the slot, and a second blade lock situated at a second side of the slot opposite the first side. At least one of the first and second blade...