A reinforcement system and method for a door having a window provides for a window shutter that slides into a position covering the window during a shooting incident. An elongated bar has one end pivotally supported by a securing bracket, which is attached to a wall adjacent the door. A release pin is attached to the securing bracket; it normally supports the bar in a vertical stored position. A holster is secured to the wall on the opposite side of the door in alignment with the securing bracket. The shutter, the securing bracket, and the holster are formed from a ballistic resistant material. During a shooting incident, the user moves the shutter to cover the window, removes the release pin and pivots the bar into a horizontal position barring the door. The free end of bar is received in the holster, thereby reinforcing the door independently of the door frame and door hinges.

An electronic locking device including a cylinder and a plug located in the cylinder. Within the plug is a solenoid with a pair of shuttles which move in opposite directions. A control processor controls the solenoids activating the shuttles when connected to the correct key. Blocking elements for each shuttle are inserted through the cylinder and into annular channels in the plug. The blocking elements receive and allow linear movement of the shuttles but prevent their rotation within the annular channels. In a locked condition the shuttles are contained only partially within the annular channels thereby preventing rotation of the plug within the cylinder but in an unlocked condition the shuttles are contained within the annular channels thereby allowing rotation of the plug. The plug also includes a weakness defining a point at which it will break upon application of excessive force.

A deadbolt lock assembly is disclosed. The deadbolt lock assembly includes an exterior lock mechanism and an interior lock mechanism mechanically connected through a bored hole in a door. The exterior portion of the lock assembly includes a reinforced chassis with a reinforced lock cylinder bore and an anti-rotation arm to enhance the lock's resistance to attack. The interior portion includes a thumbturn that is physically connected to the gearbox frame for robustness and includes stabilizing detents to improve the user feel. The gearbox frame and mounting bracket are connected with a single screw and spring-loaded latch for ease of assembly.

A theft deterrent device includes a locking portion and a housing portion. The locking portion includes a locking mechanism. The housing portion includes a housing portion wall. The housing portion wall comprises a first material and is configured to house a second material within the housing portion wall. The second material is made of a different material than the first material. The second material is selected such that a cutting tool will be hindered when trying to cut through the housing portion.

A deadbolt assembly with a latch assembly and a lock cylinder. The deadbolt assembly includes a first torque blade longitudinally extending along a first axis and a second torque blade longitudinally extending along a second axis. The second torque blade is operatively coupled with the latch assembly to actuate the bolt between the retracted position and the extended position. The deadbolt assembly includes a geared arrangement operatively coupling the first torque blade and the second torque blade. The geared arrangement is configured to apply rotational movement of the first torque blade to the second torque blade.

A device with a reinforcement plate implement, wherein said reinforcement plate implement is configured to position between a doorjamb and a doorframe stud, in which said reinforcement plate implement is operable for improving a resistance of the doorjamb from external force. A projecting lip segment is configured to rest on a middle portion of the doorjamb. A reinforcement plate aperture portion and a deadbolt strike plate implement are configured to accept the deadbolt of the lock mechanism. A reinforcement plate projecting tab part that lines a sidewall of said reinforcement plate aperture portion, interlocks with the deadbolt strike plate projecting tab part when the reinforcement plate implement is positioned between the doorjamb and the doorframe stud.

A lock cylinder is provided adapted to be installed in a lock comprising a lock bolt for driving the lock bolt. Said lock cylinder comprises a cylinder housing, and a revolving plug comprising a rotor element adapted to rotate with respect to the cylinder housing about a rotation axis within a rotation support, and a driving tooth for the lock bolt comprising an engage portion adapted to engage the lock bolt, said driving tooth being rotatable about the rotation axis together with the rotor element and being coupled to the rotor element in such a way the operative distance between the engage portion of the driving tooth and the rotation axis varies, while rotating about the rotation axis, as a function of the rotation angle of the rotor element with respect to the cylinder housing. When the lock cylinder is installed in the lock, said operative distance has one among a plurality of first values when the rotation angle of the rotor element belongs to a first angular interval corresponding to a position of the engage portion of the driving tooth that is proximal to the lock bolt; and said operative distance has one among a plurality of second values when the rotation angle belongs to a second angular interval corresponding to a position of the engage portion of the driving tooth that is distal to the lock bolt, each of said first values being higher than each of said second values. When the lock cylinder is installed in the lock, the lock cylinder is located below the lock bolt along a first direction substantially perpendicular to the rotation axis. the driving tooth is slidingly housed within a seat which is radially provided in the rotor element and which defines at least one side opening of the rotor element perpendicular to the rotation axis. The driving tooth is provided with at least one engage element which protrudes from a side opening along a direction parallel to the rotation axis, and adapted to slidingly engage guide profiles provided on the rotation support, said guide profiles defining for said at least one engage element an overall guide profile having an eccentric shape arranged to support from below along said first direction said at least one engage element when the rotation angle of the rotor element belongs to both the first angular interval and to the second angular interval, said overall guide profile being adapted to cause said variation of the operative distance as a function of the rotation angle of the rotor element with respect to the cylinder housing.

A theft deterrent device includes a locking portion and a housing portion. The locking portion includes a locking mechanism. The housing portion includes a housing portion wall. The housing portion wall comprises a first material and is configured to house a second material within the housing portion wall. The second material is made of a different material than the first material. The second material is selected such that a cutting tool will be hindered when trying to cut through the housing portion.

A cable lock including a lock body having a locking mechanism with a locked state and an unlocked state. A ceramic body cable includes a plurality of nested ceramic bodies and a cord, wherein each one of the plurality of ceramic bodies includes a center portion having an aperture. Each aperture of the plurality of nested ceramic bodies forms a channel through which the cord is positioned. Each of the ceramic bodies also includes a projection and a space such that the projection of one of the ceramic bodies overlaps the space of an adjacent ceramic body. A mesh sleeve is positioned on an exterior of the ceramic body cable and a shrunken heat shrinkable tube is positioned over the mesh sleeve. The combined ceramic body cable, mesh sleeve, and shrunken heat shrinkable tube are coupled to the lock body.

A chain lock includes a lock body having a first closure part, a second closure part, and a combination locking mechanism that is aligned along a lock axis. The chain lock having a bolt selectively locked to the lock body by the combination locking mechanism. The lock body has a chain connection part permanently connected to the bolt via a chain. The combination locking mechanism having a plurality of rotatable code setting rings arranged between the first and second closure parts. At a first end the lock body has at least one first fastening pin that engages through the housing sleeve into an annular groove of the chain connection part. At a second end the lock body has at least one second fastening pin that engages through the housing sleeve into the second closure part of the lock body and that fixes the second closure part to the housing sleeve.