Abstract: This electric strike mechanism has a housing, a keeper pivotally mounted in the housing, at least one locking element pivotally mounted within the housing, for pivoting between a first position where the keeper is prevented from pivoting, and a second position where the keeper is permitted to pivot so that the door can be opened, a solenoid connected to each locking element via an actuation mechanism to move each locking element when the solenoid is energized, and a spring biasing the solenoid towards a non-actuated position.

Abstract: This electric strike mechanism has a housing, a keeper pivotally mounted in the housing, at least one locking element pivotally mounted within the housing, for pivoting between a first position where the keeper is prevented from pivoting, and a second position where the keeper is permitted to pivot so that the door can be opened, a solenoid connected to each locking element via an actuation mechanism to move each locking element when the solenoid is energized, and a spring biasing the solenoid towards a non-actuated position.

Abstract: A solenoid actuated door lock has a latch keeper which normally is in a locking position to prevent opening of a door. The latch keeper is maintained locked by a locking means which prevents movement of the latch keeper to an unlocked position. The locking means is moved by operation of a solenoid to a position where the keeper can release the door.

Abstract: An electric door strike includes a rotatable keeper body which is secured against rotation by a solenoid-operated latching mechanism. The keeper is biased toward a released position, and is returned to a latched position by rotation when the door closes against a protruding stop member which is rotationally and horizontally offset from the keeper. The strike is of particular utility for electric conversion of existing door locks.

Abstract: A vandal-proof cross bar assembly for securing the door of a refrigerated storage vault or similar chamber includes first and second mounting members secured on opposing sides of the door, and a cross bar each end of which is secured to a mounting member by a respective shackle lock. The locks attach to pivot posts extending from the mounting members. The posts pivot freely about a first axis, and the shackles each define a loose hinge about a second orthogonal axis, so that with one lock detached, the cross bar hangs freely and moves in a multi-axis articulated motion which prevents vandalism by prying and forcing the bar. In a preferred embodiment the mounting members are placed on adjacent exterior walls of the chamber and an L-shaped cross bar having a main bar and a shorter leg portion fits about a corner to engage the members and secure the door. The main bar pivots about the longitudinal axis of the shorter leg portion.