A pre-hung door and casing retention device and a method of latching and unlatching a pre-hung door and casing. The door includes a tubular body configured to be receivable in a door lock cylinder opening and a door latch opening. A male portion has an extending post with a plurality of teeth extending from at least one side of said post, the male portion receivable in a latch bolt opening and the door latch opening. An elongated engagement portion has a first end fastened in the tubular body, an opposed second end extending from the tubular portion and a protrusion engaging teeth on the male portion when inserted into the tubular portion and wherein the protrusion is disengaged from the teeth when a withdrawal force is exerted on the engagement portion.

A supplemental locking device particularly suited for use on a cargo container. The device consists of a three-sided channel, made of heavy-gauge steel that fits over the locking mechanism of a cargo container capable of being slipped over this locking system with the aid of oval cut slots on the sides that accommodate any horizontal members.

A lockdown system for use in a building including multiple rooms with doors providing access to the rooms, the lockdown system including: at least one room lockdown component provided in each of a plurality of the rooms, the room lockdown components comprising door-securing devices that are external of the doors and, in a deployed condition of the room lockdown components, are manually positioned inside said rooms to oppose inward movement of the doors and thereby block or secure the doors, the room lockdown components further characterized by a non-deployed condition in which the door-securing devices are positioned at storage locations inside the rooms, and wherein further each room lockdown component is operative to automatically signal initiation of a lockdown event when its door-securing device has been moved from its storage location; and at least one communication device operative to receive the signaled initiation of a lockdown event when any one or more of the door-securing devices have been moved from their storage locations, and to provide an alert notification of the initiation of the lockdown event.

A locking system for locking of an enclosure that is provided with at least one and preferably two doors or gates is provided. The locking system comprising a lock holding device with a bent piece for mounting of a locking rod behind the door and a blocking element and a lock.

A door barricade device having a plate secured to an outward opening room door on a room side of the door; the plate having a pair of rails which engage a doorstop device which slides into the rails and abuts the doorframe inside the room, to prevent the door from opening outwardly. The room can be a classroom

An emergency entry control system which is particularly adaptable for use with double panic doors typically found in schools, movie theaters, and other public facilities. The system includes a base, connecting bracket, and engagement means designed to be removably secured to the top latching mechanism and/or bottom latching mechanism of a conventional double panic door configuration to prevent double panic doors without a center bar from being opened from the outside. The system is rotated manually to permit the panic doors to operate normally. The system can also be modified with wireless and audio technology to effectuate audible and visual notification and facilitate location and communication during emergency situations like an unauthorized attempt at entry or removal of the system.

A door hanger apparatus is disclosed and configured for securely and adjustably hanging an at least one object therefrom so as to prevent theft of said object. In at least one embodiment, the apparatus provides an elongate exterior portion configured for being positioned adjacent to an exterior surface of the door, an elongate interior portion configured for being positioned adjacent to an interior surface of the door, and an engagement portion interconnecting the exterior and interior portions and configured for being positioned adjacent to an upper end of the door. An attachment slot extends longitudinally along at least a portion of the exterior portion and the engagement portion, and is configured for slidable engagement with an attachment article.

The invention relates to a child lock 10 for a sliding window or door 7, 37 arranged in a frame or support 6, 36, comprising a base part 11, 21 and a wing part 13, 22 pivotally arranged on a side of the base part 11, 21; the base part 11, 21 including a means of attachment to the existing frame or support 6, 36 by adhesive or screws or like, and a spring 14, 24 is provided acting on the wing part 22 and which urges the wing part 22 into a first position out of alignment with the base part 11,21 and in which first position it impedes the movement of a window or door when the lock is fitted by a user into a location adjacent to the edge of the window or door which is desired to be locked, and which wing part 13, 22 is movable by the user in a first direction against the action of the spring 14, 24 to a second position in which is does not impede the movement of the window or door 7, 37 and the door or window 7, 37 may then be opened and whilst open retains the wing part 13, 22 in the second position, wherein a secondary lock wing part 15, 27 is provided and arranged on the wing part 13, 22 the secondary lock wing part 15, 27 being urged by means of a secondary lock spring 16, 28 which urges the secondary lock wing part into a locked position which acts to prevent movement of the wing part 13, 22 the secondary lock wing part 15, 27 being movable by the user in a second direction to an unlocked position in which movement of the winged part 13, 22 is permitted enabling the wing part 13, 22 to be pressed to the second position in which the movement of the window or door, 6,7, 37 is not impeded. The secondary lock wing part 15, 27 can be pivotally arranged on the wing part 13, 22. The second direction is approximately orthogonal to the first direction.

Portable door locks are disclosed. One of the portable door locks includes i) a non-destructively removable door mount securable to a vertical door edge, ii) a deflection arm extending longitudinally from a distal arm end to a proximal arm end, and iii) a door frame engagement latch connected to the deflection arm proximate the distal arm end. The proximal arm end is connected to the door mount. The deflection arm is rotatable relative to the door mount between at least a biased position and a deflected position. The door frame engagement latch is movable relative to the deflection arm between at least a door frame latching position and a door frame gliding position. The door frame engagement latch is biased toward the door frame latching position.

A hinge locking device for a door includes a mounting plate defining an upper plate end and a lower plate end, a plate slot extending into the mounting plate at the lower plate end, the plate slot configured to receive a hinge plate of a door hinge assembly therethrough; a reinforcement gusset affixed to the mounting plate and defining a gusset recess aligned with the plate slot; and a barrel channel defined between the gusset recess and the mounting plate, the plate slot allowing lateral access to the barrel channel, the barrel channel configured to receive a hinge barrel of the door hinge assembly.