A door locking system configured to secure an out-swing door against forced entry when installed on the out-swing door and door frame, the door frame including an elongated vertical inside door jamb the door opposite and apart from a vertical outside door jamb, the door having a planar door exterior major surface disposed in spaced opposed relationship to a planar door interior major surface, the door having an elongated vertical door inside edge, the door inside edge bridging in perpendicular intersecting relationship from the door exterior major surface to the door interior major surface, the door supported on a set of door hinges proximate the door inside edge for swinging movement about an out-swing door hinge vertical axis, the door having an elongated vertical door outside edge opposite the door inside edge in parallel relationship therewith, the door outside edge intersecting the door interior major surface along a vertical door outside interior axis, the intersection of the door outside edge with the door interior major surface defining a door outside interior corner, said system comprising:
- a mounting plate to be installed in fixed position on the door, the mounting plate configured to be secured against the door interior major surface by an elongated threaded fastener extending through the door;
- an elongated hinge pin assembly to be supported by the mounting plate;
- said mounting plate configured to support the elongated hinge pin assembly proximate the door outside interior corner when installed, said hinge pin assembly having a hinge pin vertical axis proximate the door outside interior axis in parallel relationship therewith, said hinge pin assembly supported for rotation movement relative to said mounting plate about said hinge pin vertical axis, said hinge pin assembly supported for vertical translation movement relative to said mounting plate along said hinge pin vertical axis between a hinge pin uppermost position and a hinge pin lowermost position;
- a door frame anchor assembly configured to be mounted to the door frame second jamb, said door frame anchor assembly comprising a door frame anchor mounting plate configured to be secured to the door frame second jamb, said door frame anchor assembly comprising a door frame anchor bolt configured to be secured to the door frame anchor mounting plate in mating threaded engagement therewith;
- a door frame anchor assembly when installed on the door frame second jamb configured for said door frame anchor bolt in fixed position to align with a clasp cut-out of a clasp swing plate;
- said clasp swing plate supported on said hinge pin assembly for pivoting movement relative to said mounting plate about said hinge pin vertical axis through a limited range of motion between an unlocked position extending substantially parallel to a first interior surface of said mounting plate and a locked position extending substantially perpendicular to said mounting plate, the clasp swing plate configured to engage the door frame anchor bolt;
- said door frame anchor bolt spaced apart from said hinge pin vertical axis, said door frame anchor bolt having an anchor bolt primary axis extending in the horizontal direction in alignment with the clasp cut-out to positively retain the clasp swing plate in the locked position;
- said clasp swing plate comprising the clasp cut-out, said clasp cut-out defining a clasp anchor bolt aperture in said clasp swing plate, said clasp cut-out having a lower major region in open communication with an upper minor region above said lower major region, said clasp cut-out configured to clear and receive in said lower major region an enlarged anchor bolt head when said clasp swing plate is raised along said hinge pin vertical axis to a clasp uppermost position relative to said mounting plate, when said clasp is lowered along said hinge pin vertical axis to a clasp lowermost position relative to said mounting plate said clasp cut-out configured to receive in said upper minor region only an anchor bolt stem smaller than said enlarged anchor bolt head, said anchor bolt stem extending to a mounting bolt anchor plate from said enlarged anchor bolt head, said clasp swing plate biased by force of gravity to move downward from said clasp uppermost position to said clasp lowermost position when said clasp swing plate proximate said hinge pin vertical axis is received in a vertical locking channel defined in said mounting plate proximate said hinge pin vertical axis, said vertical locking channel preventing pivoting movement of the clasp swing plate away from the locked position at said hinge pin vertical axis, said enlarged anchor bolt head preventing pivoting movement of the clasp swing plate in said lowermost position away from the locked position at said clasp cut-out upper minor region, said clasp swing plate positively retained in said lowermost position by biasing force of gravity.