A door safety barricade capable of preventing an intruder from entering through a door in a classroom, a school, an office building, and the like, when the device is in an engaged, locked position and wherein the selected authorities will be automatically notified as the locking device passes by the sensor while being engaged.

The invention relates to an electronic lock that defines an open position and a closed position and includes a mobile carriage moveable in a linear manner. The mobile carriage is coupled to a closure element and to an actuation mechanism. A first spring is provided between the mobile carriage and the closure element and is configured to move in relation to the mobile carriage. A lock sensor is provided for controlling the position of the closure element. An electronic control module is connected to the sensor for identifying non-authorised manipulations of the lock when it should be closed. The lock sensor detects when the closure element is in the open position or, if it should be open, the lock sensor does not detect when the closure element is in the open position.

A quick connection and/or fastening system suited to mutually connect and disconnect a first and a second element is disclosed, the system including a first and a second component that are suited to be rigidly fixed to the first and second elements, respectively, the first component and the second component being also suited to be mutually connected and disconnected, the second component being suited to house an end portion of the first component in such a way as to allow its translation inside the second component, the second component comprising also counteracting elements suited to counteract the translation of the end portion of the first component towards the outside of the second component.

A quick connection and/or fastening system suited to mutually connect and disconnect a first and a second element is disclosed, the system including a first and a second component that are suited to be rigidly fixed to the first and second elements, respectively, the first component and the second component being also suited to be mutually connected and disconnected, the second component being suited to house an end portion of the first component in such a way as to allow its translation inside the second component, the second component comprising also counteracting elements suited to counteract the translation of the end portion of the first component towards the outside of the second component.

An apparatus for locking a panel to a strike jamb includes a synchronous displacement mechanism associated with a locking element (108) which is responsive to part of a closing motion of a panel (104) from an open position towards a closed position to initiate a motion of locking element (108) towards the locked position during the closing motion of the panel prior to the panel reaching its closed position. The synchronous displacement mechanism preferably has a “deadlock state” when the locking element is in the locked position which prevents displacement of the locking element towards the unlocked position.

A lock is provided for a secondary aircraft cockpit barrier. The lock has a locking tongue, a cavity for receiving the locking tongue, a locking retainer for retaining the locking tongue in the cavity, and a damped locking tongue releasing mechanism for releasing the locking retainer thereby unlocking the locking tongue from the cavity. The damped locking tongue releasing mechanism is damped such that releasing the locking retainer requires at least about 5 seconds.

A lock is provided for a secondary aircraft cockpit barrier. The lock has a locking tongue, a cavity for receiving the locking tongue, a locking retainer for retaining the locking tongue in the cavity, and a damped locking tongue releasing mechanism for releasing the locking retainer thereby unlocking the locking tongue from the cavity. The damped locking tongue releasing mechanism is damped such that releasing the locking retainer requires at least about 5 seconds.

A lock for electronic devices may include a main body, a lock barrel, a connecting member, a first engaging member, and a second engaging member. The main body has a shell which comprises two pieces to fit together, and at least an inner surface of the shell has a first housing and a second housing which are communicated through a connecting channel. Two ends of the shell respectively have a first opening and a second opening axially penetrating through the shell, and the second housing comprises a first securing portion formed therein. The main body is connected to a lock cable which is configured to be wound around an immovable object to achieve the burglarproof effect of the lock.

A door locking apparatus and method adapted to allow a person inside an enclosable space to quickly close a door, denying entry into the enclosable space such as a room or building, and enabling such door to be quickly locked from within without any tools or keys and in a one-step motion, such that an unwanted intruder is denied access. The invention comprises a locking post that is received by a receiving structure such a floor or door frame. The locking post of the invention may be of substantial cross section such that unaided forceful entry is prevented. The latch of the invention may be manually operated by the foot or hand of the user. The door locking device is able to be locked or unlocked by a user from within an enclosable space, but can only be unlocked from outside the enclosable space by a key or code.

A lock for electronic devices may include a main body, a lock barrel, a connecting member, a first engaging member, and a second engaging member. The main body has a shell which comprises two pieces to fit together, and at least an inner surface of the shell has a first housing and a second housing which are communicated through a connecting channel. Two ends of the shell respectively have a first opening and a second opening axially penetrating through the shell, and the second housing comprises a first securing portion formed therein. The main body is connected to a lock cable which is configured to be wound around an immovable object to achieve the burglarproof effect of the lock.