Abstract: The present disclosure is a locking system that has an opening in a door adapted an arranged for receiving a lock bolt and a lock fixed in a wall for actuating a lock bolt adapting and arranged for being received by the opening in the door when the door is closed. The locking system further comprises a blocking strip protruding from a door jamb, the strip coupled to the door jamb and positioned adjacent the lock bolt for blocking access to the lock bolt between the door and the door jamb.

Abstract: A tamper resistant device for an appliance for preventing unauthorized access to and manipulation of the controls for a water heater or the like. The tamper resistant device for an appliance includes a support assembly adapted to secure about a back of a control unit of an appliance and a cover member removably securable to the support assembly and adapted to cover the control unit of the appliance.

Abstract: The present invention discloses a locking link, composed of a cover moveably engaged with a link. The cover at a first engaged position is locked with the link, and at a second engaged position is unlocked from the link.

Abstract: A mechanical composite lock includes a bottom plate and an upper shell, wherein an accommodation space is formed between the bottom plate and the upper shell; the accommodation space is provided with two groups of locking hooks; an inserting hole is formed in the upper shell; two moving pieces are arranged in the accommodation space; the opening directions of the two groups of locking hooks are opposite to each other; a middle transmission mechanism, a lock cylinder device and a password device are arranged in the accommodation space; the middle transmission mechanism is connected with the moving pieces respectively; the accommodation space is provided with a moving space; the lock cylinder device and the password device are respectively connected with the middle transmission mechanism; the lock can be opened at one time through the lock cylinder device and can also be sequentially opened through the password device.

Abstract: A locking device for adding security to an item locked by a lock having a cable, the locking device having: a housing configured to receive the lock by having a shape similar to the lock, the housing comprising an open top; a floor having mounting holes configured for receiving means for securing the housing to a surface; a first side wall having a first top wall end; and a second side wall; and means for receiving a first cable end and thus receiving the lock into the housing; means for restricting a movement of the first cable end out of the housing when means for unlocking and locking a second cable end into a first locking portion of the lock is in a locked state; and a first circular opening inaccessible from the first top wall end, and aligned with the first locking portion when the housing receives the lock.

Abstract: Methods, systems and apparatus for converting locks between key-retaining and non-key-retaining functions by means of a function-determinative lock actuator are disclosed. The disclosure teaches lock sub-assemblies that utilize a function-determinative actuator and a cooperating rotator bolt to transfer motion from a lock cylinder to a lock release mechanism. The function-determinative actuators can include movable portions that selectively determine the lock function by adjustment of the movable portion. Alternatively, changing the structure of, selectively adding portions to and/or removing portions from the actuator can determine the lock function. The disclosure also teaches dual-function locks that incorporate the above-noted lock sub-assemblies. Methods of converting lock functions using a function-determinative actuator are also disclosed.