ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,984, issued on Feb. 24, was assigned to Surelock McGill Ltd. (Wokingham, Great Britain).
"Bolt restraint" was invented by Stuart Parker (Wokingham, Great Britain) and Glen Davies (Wokingham, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bolt restraint mechanism for restraining a bolt of a bolting mechanism. The bolt restraint mechanism includes a bolt moveable between thrown and retracted positions and a catch plate having an aperture through which the bolt extends. The catch plate is biased to pivot such that a restraint surface of the aperture pushes against the bolt to restrain movement of the bolt. A release trigger is arranged ...