Abstract: Improvements in a doorstop mechanism include a swivel bar mounted on a doorjamb to swing between a position in the path of the door to block its opening and a position retracted out of the path of door-opening movement. The stop bar can be held in door-blocking position by engagement of a rib-and-groove latch. The stop bar can be moved into latch-engaged position by swinging of a keeper to move cooperating cylindrical or edgewise cams relatively which movement shifts the stop bar into latched position in opposition to the force of a latch-releasing spring. The improvements include strengthening the doorstop mechanism and adding members to make it more difficult to break down the door by force such as kicking it and modifications to permit parts to be reversed for use with doors which open to the right away from one (right-hand doors) and which open to the left away from one (left-hand doors).

Abstract: The hinged strap of a hasp assembly is mounted on the inside surface of a door near its opening edge, which strap is swingable between a position in the path of the door to allow it to be opened a limited distance and a position retracted out of the door-opening path. The door can be maintained in limited opening position by engagement of the hasp strap with a pivotable bar of a keeper assembly attached to the door frame. With the strap in the door-opening position rotated out of the path of the door, the pivotable bar can be rotated from the position in which it engages the strap for allowing the door to be opened a limited amount to a position in the path of the door to block any opening movement.

Abstract: A swivel bar is mounted on a door jamb to swing between a position in the path of the door to block its opening and a position retracted out of the path of door-opening movement. The stop bar can be held in door-blocking position by engagement of a rib-and-groove latch. The stop bar can be moved into latch-engaged position by swinging of a keeper to move cooperating cylindrical or edgewise cams relatively which movement shifts the stop bar into latched position in opposition to the force of a latch-releasing spring. .Iadd.