Abstract: In combination, a door, two latches at an edge of the door, and door latch operating components at opposite sides of the door; displaceable structure in the door having a position blocking movement of the latches, first mechanism responsive to displacement of one of the components for displacing the structure from blocking position to allow movement of the latches, for door opening; and electrically operable actuating means for effecting displacement of the structure from blocking position to allow movement of the latches, for door opening.

Abstract: Panic lock for building into a door (2) or similar, with the panic lock comprising a lock case (3); a dead bolt (6); a latch bolt (8); an operating bar (12), characterised in that the panic lock is provided with means that enable the same lock to be converted to realise the panic functions ‘B, D or E’ by simply moving or removing one or two screws, depending on the desired application.

Abstract: A double-lock deadbolt lock that provides improved security for a person inside a structure having a door with the deadbolt lock thereon. The deadbolt lock disables the lock mechanism to prevent the lock from being unlocked by picking tools or any key, whether the real key or not, as to maintain the lock in its locked position until unlocked by the person inside the structure. The faceplate on the inside of the door has an aperture defining a lever cavity that is sized and configured to at least partially receive the thumb lever therein. The sides of the thumb lever will abut against the edges of the aperture and prevent a key or any other device from unlocking the lock mechanism. When outside the lever cavity, the double-lock deadbolt lock functions the same as a prior art deadbolt lock to allow use of a key to unlock the lock.

Abstract: In a door panel integrated door stopper with a door lock housing integrated operating mechanism, comprising a door stopper bolt, a spring biasing the door stopper bolt downwardly, a pull member connected to the door stopper bolt for actuating the door stopper bolt, the operating mechanism is disposed in the door lock housing and includes an operating member movable between door stopper engagement and release positions, the operating member extends out of the lock housing through a rear wall opening thereof so that no operating structure is disposed at the side walls of the lock housing.

Abstract: A panic exit door lock includes a cover (20) mounted to an outer side (10b) of a door (10). A sliding member (34) is slideably received in the cover (20) and operably connected to a latch (12). A handle (24) is pivotably mounted to the cover (20) and operably connected to the sliding member (34) such that rotation of the handle (24) causes sliding of the sliding member (34) to move the latch between an extended position and a retracted position. A limiting member (32) is pivotably received in the cover (20) between a blocking position not allowing movement of the sliding member (34) and a release position allowing movement of the sliding member (34). An inner lock core (54) and an outer lock core (270) are respectively mounted to an inner side (10a) and the outer side (10b) of the door (10). Either of the inner and outer lock cores (54, 270) can be rotated by a key to move the limiting member (32) between the blocking position and the release position.

Abstract: The invention generally relates to a latch apparatus having a locking live bolt. One embodiment of the invention is a latch apparatus having a housing with opposed plates that are spaced apart and secured to each other by support arms formed from the plates. A live bolt of the apparatus is slidably mounted in the housing and horizontally actuated between an extended and a retracted position. A live bolt hub is mounted in the housing and actuates the live bolt. A slide, actuated by a rotatable cam, is mounted in the housing and moves vertically between a first position and a second position. In the first position the slide is disengaged from the live bolt, and in the second position the slide locks the live bolt in an extended position.

Abstract: A mechanism for providing a multi point bolting action to secure a door or other leaf movable within a frame is disclosed. The mechanism comprises a drive gear and an axle gear mounted to rotate about substantially the same axis. The idle gear is arranged to rotate in one sense when the drive gear rotates in the other sense. The mechanism also comprises at least one first member arranged to move between a thrown position and a retracted position when the drive gear rotates, and at least one second member arranged to move between a thrown position and a retracted position when the idle gear rotates. The first and second members are each provided with a rack held in intermeshing engagement with the appropriate gear.

Abstract: A closing device for a lock, comprising a pivoting bolt that can be closed in a forward and retracted position with the aid of a locking means. The invented device also comprises a closing element (13) that accommodates the bolt in a forward close position and a locking and unlocking device for said bolt. The locking and unlocking device comprises at least one locking element (17, 18) that can be moved forwards into the movement area of the bolt or retracted, whereby the pivoting bolt is secured in a forward position against closure in a retracted position or retracting from the forward close position. When in a locked position, mechanical door-side interventions on the locking mechanism of the locking cylinder or the pivoting bolt-lock do not result in a closing movement of said bolt.

Abstract: A holdback dog for a mortise lock including a holdback dog slidably mounted to a tab on the mortise lock locking link. The holdback dog is activated by first retracting the latchbolt using the inside handle and then unlocking the lock using either the key cylinder or the inside thumbturn. When the lock is unlocked, the locking link moves downward, placing a tab on the holdback dog slide in confronting engagement with a corresponding tab on the bolt slide. After the inside handle is released, the holdback dog tab holds the bolt slide, and therefor the latchbolt, in the retracted or "dogged" position. For normal or "undogged" operation, the slidable mounting of the holdback slide allows the bolt slide tab to engage the holdback dog tab and push the holdback dog slide out of the way, when the lock is unlocked and either handle is operated, thereby permitting normal operation.

Abstract: A lock mechanism comprises at least one bolt member moveable between an engaged and a disengaged position. The latch arrangement prevents movement of the bolt members from the engaged position to the disengaged position. A first operating member for operating the lock mechanism is provided on one side thereof and a second operating member and a latch release arrangement are provided on the other side of the lock mechanism. The latch arrangement responds to movement of the first operating member or the latch release arrangement to release the bolt members and allow movement thereof from the engaged position to the disengaged position. The bolt members are further moveable between the engaged and disengaged positions in response to movement of the first or second operating members.

Abstract: A door lock comprises a latch and a mechanism for locking the latch which includes a pivotal element having at least one arm engageable with the latch to withdraw it to the open position a locking bolt depressable to move into a blocking position to prevent to swivel the pivotal element to withdraw said latch, and a key-operable unlocking lever for moving the locking bolt out of the blocking position to permit to swivel said pivotal element, the lever having a catch operable by the key.

Abstract: A lock mechanism particularly for doors having a narrow stile, wherein a unique arrangement of components provides greater security and facilitates manufacture and installation, as characterized by a heavy pivotally swingable main bolt connected at its inner end to one end of a rocker actuating lever, the end of the lever being provided with a unique escapement for the release and control of the movement of the rocker arm by an associated manually rotatable key-actuated cam extension, to move the main bolt between locked and unlocked positions. An important feature of the escapement resides in a unique arrangement of parts which is not critical as to the dimensions of the actuating cam extension, and which readily accommodate to actuating cams that may vary materially in their dimensions. The escapement also enables a better and more symmetrical resolution of the operating forces and the obtainment of maximum security.

Abstract: A dead bolt type door lock including a combined dead bolt member and latch which engages a common locking recess in a door jamb around a door in which the lock is mounted. The door lock utilizes a standard keyed lock assembly in combination with a latch fitted in sliding relationship within a channel shaped dead bolt member so that when the dead bolt member is retracted into the door the latch functions in a conventional manner and when the dead bolt is extended over the latch into the door jamb opening the door is secured against the normal techniques of unauthorized entry commonly accomplished by the use of credit cards and the like. The lock includes linkage and latch assemblies for manipulating and holding the latch and dead bolt sleeve at the various operating positions at which the lock is locked and released. The dead bolt sleeve is selectively operable from both the interior and exterior sides of the door.