US Patent 11604041 Semi-automatic pistol having safety lockout on disconnector

A disconnector trigger bar safety for a semi-automatic pistol is provided and includes a trigger bar having a firing pin end having a sear surface and a cam surface. The trigger bar has an inside surface disposed adjacent to the cam surface. A disconnector is moveable from an inward position to an outward position and has a cam surface to receive the cam surface of a trigger bar. An inset portion is provided on the trigger bar at the firing pin end that has a bottom surface. A protuberance on the side of the disconnector is provided to mate with the inset portion of the trigger bar. The protuberance has a top surface matable to the bottom surface of the inset portion. Rearward movement of the trigger bar causes the cam surface of the trigger bar to slide against the cam surface of the disconnector to move the firing pin end of the trigger bar downwardly. The disconnector moves to provide clearance for the trigger bar to move upward. The top surface of the protuberance mates with the bottom portion of inset portion of the trigger bar to prevent downward movement of the trigger bar. Forward movement of the trigger bar causes the top surface of the disconnector to disengage from the bottom portion of the inset portion of the trigger bar and causes the disconnector to move to allow the cam surface of the trigger bar to reengage with the cam surface of the disconnector.