The invention relates to a lock (5) for a hinged closure, comprising a housing (8) adapted to be mounted on a frame (3) of the closure, and seating internally thereof a bolt device (4) reciprocable relative to the housing between respective open and closed positions of the closure and having a throw of substantially 70 mm to bridge in use a gap between the frame and a facing keeper, characterised by a Eurocylinder lock means (5) adapted to engage and retain the bolt (4) in the locked, or closed, position of the closure. There is also disclosed means to protect the said lock (5) against vandalism, the means comprising in disclosed embodiments a cover plate (305,305a), an inclined escutcheon (6), or smooth fillet weld(s) securing the escutcheon (6) to the housing (8).

A lock mechanism having a bolt movable between a thrown position and a retracted position, and a deadbolt assembly includes a sliding deadbolt configured to slide between a locked position in which the sliding deadbolt inhibits retraction of the bolt and an unlocked position. The sliding deadbolt includes a first anti-thrust cam configured to restrain the sliding deadbolt in the locked position, and a release driver arranged such that, when driven, the release driver releases the first anti-thrust cam from restraining the sliding deadbolt in the locked position and slides the deadbolt to the unlocked position.

A door lock system comprising a first rotary configured to control extension and retraction of the deadbolt via a primary cam mechanism; a second rotary control configured to control extension and retraction of the latch; and a link configured to retract the deadbolt in response to operation of the second rotary control when the latch is retracted by the second rotary control. The link is configured to move along a linear path normal to the movement of the deadbolt and the door latch and to contact the primary cam mechanism upon the link movement to affect deadbolt retraction and extension. A lever may be used to retract the latch in response to rotation of the first rotary control in a first rotational direction when the deadbolt is retracted by the first rotary control.

A lock (21) for an animal cage (11), the lock (21) being configured for locking a first wire mesh panel (13) of the cage to an adjacent second wire mesh panel (14), the lock comprising: a fastener (29, 31) for coupling the lock (21) to said first panel (13) in the vicinity of a peripheral edge of said first panel; a panel support (36) for supporting a peripheral edge portion of said adjacent second wire mesh panel (14), and a two-part locking mechanism (39, 41) reconfigurable between a first position in which said peripheral edge portion of said adjacent second wire mesh (14) panel is retained in said panel support (36) and a second position where said peripheral edge portion of said adjacent second wire mesh panel (14) can be moved out of said support (36).

A safety switch includes a movably mounted locking bolt configured to lock an actuator in a defined locking position relative to the safety switch. The safety switch includes a movably mounted locking bulkhead movable between a first position and a second position. The locking bulkhead is configured to fix the movably mounted locking bolt in the second position via a positive fit.

A lock assembly (30, 30′) is provided that includes a housing (32), a rotary bolt (36) or a translating bolt (36′), and a bolt blocker (38) that moves between a blocking position blocking movement of the bolts (36, 36′) and an unblocking position permitting the bolts (36, 36′) to move to a retracted position. The lock assemblies (30, 30′) are resistant to shocks being applied to the locks assemblies (30, 30′) in an effort to open the lock assemblies (30, 30′) without authorization.

Methods for releasably latching a sliding panel can include providing a striker coupled to a structure such that a sliding panel is movable relative to the striker, and providing a latch coupled to the sliding panel. The latch can be rotatable and include a striker interface to engage the striker, and the striker interface can at least partially define a striker opening to receive the striker. The latch can be rotatable to a latch position and to a receive/release position. The methods can include moving the sliding panel toward the striker with the latch in the receive/release position until the striker engages the striker interface of the latch causing the latch to move to the latch position where the striker is secured for striker opening of the latch, and causing the latch to move to the receive/release position facilitating release of the striker from the striker opening of the latch.

The anti-theft device is configured in a door lock, and contains a first blocking piece, a second blocking device, a positioning piece, and a lever. The first blocking piece contains a first section and a second section bended and extended perpendicularly from the first section. The first section has a first through hole and a second through hole. The lever is engaged by a lock heart of the door lock. When the door lock is locked, the lock heart is turned to engage the lever so that the lever drives the first blocking piece downward by its first through hole. The second section of the first blocking piece as such blocks a lock tongue of the door lock so that the door lock cannot be opened without using key.

An electronic lock with an electronic sensing arrangement to accurately sense relative positions of a bolt which mechanically locks a door, such as a door of an electronic drop safe, and to also sense an electronically controlled plunger which locks the bolt in place. The arrangement provides a mechanism for sensing a variety of mechanical malfunctions, as well as, potential fraud or tampering situations.

A latch assembly is provided where the latch is moveable to open and close a door by operation of a dead lock assembly that blocks or unblocks movement of a bolt. In a blocked state, a blocking cartridge of the dead lock assembly is prevented from inward movement, blocking inward movement of the bolt. Turning a door knob or door handle causes a spindle extending through the dead lock assembly to move locking bars of the dead locking assembly, the locking bars moving further apart to permit the blocking cartridge to slide there between and move inwardly into the latch housing. The bolt can now move inward by force of the doorjamb upon the bolt in order to clear the doorjamb when opening and closing the door.