An electrical generation system for a door positioned in a doorway includes a hinge arranged to support the door for rotational movement with respect to the doorway between a closed position and an open position, and a cam that is one of coupled to the door for movement with the door, and fixed with respect to the doorway. A piezo-electric generator is the other of coupled to the door for movement with the door, and fixed with respect to the doorway. The piezo-electric generator and the cam cooperate such that rotation of the cam with respect to the piezo-electric generator is operable to produce an electrical current in response to rotation of the door, and wherein the electrical current has a frequency that is greater than the number of revolutions made by the cam with respect to the piezo-electric generator.

A push-pull passage door lock comprising at least one handle, at least one lever, at least one rotating block, a slipping block, a latch bolt and a reset device for resetting the latch bolt. The lever, rotating block and slipping block are located inside the housing. The lever and rotating block are hinged to the housing. The rotating block comprises a rotation portion and a touch portion located at the two sides of an articulated shaft of the rotating block. One end of the lever is connected to the handle and the other end is adjacent the rotation portion. One end of the slipping block is connected to the latch bolt and the other end is adjacent the touch portion. The lever rotates the rotation portion of the rotating block, whereby the touch portion of the rotating block pushes up the slipping block and thereby retracts the latch bolt.

A pin-type anti-theft tag includes a safety pin, a tag body, a tag hole suitable for inserting the safety pin, at least one sensor, and a first lock body and a second lock body located in the tag body. Both the first lock body and the second lock body need to be located in a release position at the same time, so that the safety pin can be successfully removed from the tag body. The first lock body is mounted at an unlocking hole of the tag body, and a spring lock retainer is arranged at a lower portion of the first lock body. The second lock body is mounted below the tag hole of the tag body, and a pin rod of the safety pin is inserted into the second lock body along the tag hole to play a locking role.

A handle-equipped lock. The lock comprises a latch bolt, a lock housing, and a release mechanism inside the lock housing. The handle includes handgrip, a spindle sleeve contiguous with the handgrip, and a polygonal shaped spindle, which has a part of its length inside the spindle sleeve and which is dimensioned to extend to an engagement with the lock's release mechanism. The shaped spindle, or a part thereof, is adapted to be manipulated inside the spindle sleeve between an unlocking position and a locking position. In the unlocking position, the shaped spindle extends to the lock's release mechanism and in the locking position it does not extend. The shaped spindle and the spindle sleeve are provided with locking means for securing the same relative to each other in said locking position, wherein manipulation of the shaped spindle is prevented. Alternatively, a continuous shaped spindle extends through the lock and the handle is capable of being manipulated relative to the shaped spindle between an unlocking position and a locking position.

An apparatus that at least assists in maintaining a lever or knob of a lock device in a relatively neutral and static position. The apparatus includes a biasing element that can be constructed from a compliant material that may at least assist in reducing impact forces between interfacing surfaces at least when the lever or knob is returns to the neutral, static position from one or more activated positions. The compliant nature of the damper can further alleviate issues relating to manufacturing tolerances and wear between interfacing surfaces.

An assembly includes a frame and a linear actuator coupled thereto. A link, lever, spring (LLS) subassembly may be coupled to the frame and may include a short link, a long link, a lever, and a spring. A lockbolt subassembly may further be coupled to the frame. The lockbolt subassembly may comprise a latch, a bolt housing, and a lockbolt.

A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A face gear is meshable with and rotatable by the worm gear between locking and unlocking positions when the worm gear is driven in the first and second directions, respectively. A blocker member is rotatable between first and second positions. A biasing member is operatively coupled to the face gear and the blocker member to bias the blocker member in a biasing direction. A sliding member selectively disengages the blocker member to allow the blocker member to rotate in the biasing direction. A lever arm is operatively coupled to the sliding member such that the lever arm is in the disengaged and engageable positions when the sliding member engages the blocker member in the first and second positions, respectively.

A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A face gear is meshable with and rotatable by the worm gear between locking and unlocking positions when the worm gear is driven in the first and second directions, respectively. A blocker member is rotatable between first and second positions. A biasing member is operatively coupled to the face gear and the blocker member to bias the blocker member in a biasing direction. A sliding member selectively disengages the blocker member to allow the blocker member to rotate in the biasing direction. A lever arm is operatively coupled to the sliding member such that the lever arm is in the disengaged and engageable positions when the sliding member engages the blocker member in the first and second positions, respectively.

Lock assemblies having cylinders with interchangeable cores are provided. In one embodiment a lock assembly comprises a cylinder including a keyway and a core. Also, the lock assembly includes a first driver operatively connected to the cylinder. In particular, key cuts of the core are changeable without removing the cylinder from the driver.

Automatic stop used to stop doors and window shutters in the fully open position, wherein the stop is fixed to the wall of a building by a revolving arm in order to alternatively be in an operating position, perpendicularly protruding from the wall, and in a resting position, wherein it is in parallel position close to the wall.