ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,684, issued on May 20, was assigned to Raytheon Co. (Arlington, Va.).
"Sequential torque application retention system" was invented by William M. Jackson (Tucson, Ariz.) and Raymond S. Lickson (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sequential torque application retention system includes a driver mechanism having a shaft; a center drive coupled to a tip end; an outboard drive coupled to the tip end; a screw including a screw head with a central receiver, the central receiver corresponding to the center drive, the central receiver configured to receive the center drive; a pair of outboard receivers formed in the screw head cor...