US Patent Issued to Lockheed Martin on April 14 for "Propulsor external hydraulic control system" (Connecticut Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,469, issued on April 14, was assigned to Lockheed Martin Corp. (Bethesda, Md.).

"Propulsor external hydraulic control system" was invented by Daniel George Schuster (Bethlehem, Conn.), David N. Schmaling (Southbury, Conn.), Evan S. Tobin (Shelton, Conn.) and Eric M. Bogert (Wallingford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor assembly for a rotary wing aircraft includes a rotor hub including a hub arm and a central opening. The rotor assembly further includes a hydraulic actuation cylinder positioned in the central opening, a pitch change shaft assembly including a pitch change shaft positioned partially within the hydraulic ac...