A door mullion receptacle box assembly includes a toe plate, a channel box and block components. When a mullion is removed from a building/room opening, the toe plate may be fixed in the mullion receptacle box thus creating a uniform threshold across the width of the door openings. Using the assembly described herein, however, there are no large diameter holes in the top of the toe plate and no projections into the opening that could be a trip hazard. The present assembly replaces traditional fixed sill blocks mounted to the floor, or to the top of a threshold to anchor the bottom of conventional mullions. A typical mullion is locked in place with a lock at the top of the mullion. When installed, this mullion is placed over the sill block at the sill and tilted into place and locked into a header block at the top of the mullion. However because the components of the conventional sill blocks project up into the mullion from the thresholds, they become a trip hazard and a liability when the mullion is temporarily removed.

A motor vehicle bonnet lock includes a locking mechanism which substantially consists of a rotary latch and a pawl. The locking mechanism interacts with a striker element on a bonnet. The lock further has an unlocking/opening mechanism for the bonnet, which mechanism is equipped with a release element provided in the interior of a motor vehicle body. It is required to operate the release element preferably twice to open the bonnet. The locking mechanism is transferred to a pre-latched position after the release element has been operated at least once, with the striker element still being trapped. The bonnet is opened from said pre-latched position by a movement in its longitudinal direction.

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 locking mechanism for a door panel to be positioned within and out of blocking relationship with an opening. Mechanism includes a deadbolt rotatably connected to the wall and having a curved configuration and a locking bracket connected to the door panel. The locking bracket extends from the door panel in an angular direction with respect to a plane of door panel. With door panel in a closed position and deadbolt in a first position, the locking bracket extends through the curved configuration. Deadbolt is in blocking relationship with the locking bracket in a direction along a plane of the door panel and is not in blocking relationship in a direction along the locking bracket. With door panel in closed position, deadbolt is in a second position not in blocking relationship with the locking bracket permitting door panel to move in a direction along a plane of the door panel.

A door brace to prevent the opening of a door into a room or other area by an intruder includes an elongated tube that is terminated at each end by a door mounting flange and a floor mounting flange. The door mounting flange is configured to be slideably received within a bracket that is mounted to the door. The floor mounting flange includes an aperture for receiving a pin therethrough that is also received within an aperture that has been bored into the surface of the floor. Thus, when the door brace is mounted between the door and floor, the strength of the door is increased, thus preventing the door from being opened by the use of a large entry force applied to the door by an intruder seeking entry into the room or area.

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

A telescoping door security bar for preventing intruders from entering a room. The telescoping door security bar uses a bolt and cotter pin, which are inserted completely through the door security bar to make it more stable.

Barricade devices and methods of barricading a door are disclosed. Such devices and methods may be used to barricade a door, and thereby prevent an intruder from entering a sheltering space, such as a classroom, storeroom, or hallway. The barricade-device may have a pivotable stop-device that is pivotable from a location adjacent to a door. The pivot-location may be at an elevation that is lower than a door handle on the door. The stop-device may be pivotable from a reserve-position to a stop-position. In the reserve-position, the stop-device does not barricade the door. In the barricade-position, the stop-device barricades the door. Operation of the barricade-device may require the use of one or more major muscle groups of the body, but need not require precise dexterity of the fingers or hands (e.g. such as that required to manipulate small keys, latches, and/or the grasping and turning of assemblies). As such, the barricade-device may be used properly and quickly by a wide range of people having differing physical and mental capabilities.

Barricade devices and methods of barricading a door are disclosed. Such devices and methods may be used to barricade a door, and thereby prevent an intruder from entering a sheltering space, such as a classroom, storeroom, or hallway. The barricade-device may have a pivotable stop-device that is pivotable from a location adjacent to a door. The pivot-location may be at an elevation that is lower than a door handle. The stop-device may be pivotable from a reserve-position to a stop-position. In the reserve-position, the stop-device does not barricade the door. In the barricade-position, the stop-device barricades the door. Operation of the barricade-device may require the application of an activation operation to an activator. A wide range of people having differing physical and mental capabilities may use the barricade-device properly and quickly.

Disclosed is a door catch that can help to prevent door sag, especially for heavy or tall residential or commercial doors, and provides for post-installation catch tension adjustment without removal or adjustment of mounting members. In one aspect, the door catch can include a ball catch base, a threaded ball plunger assembly, a catch bumper, and a bumper base. In another aspect, the catch bumper and the bumper base can optionally be combined into a single catch bar bracket. The ball plunger assembly is adjustably mounted within a threaded aperture of ball catch base. A ball captive in one end of the ball plunger assembly engages a detent in the catch bumper, or catch bar bracket, providing friction to hold the door open. The position of the ball plunger assembly can be adjusted vertically to increase or decrease the tension between the detent and the ball plunger assembly.