Abstract: The locking system is provided for controlling the unlocking of a door by an electronic key. The locking system has a first pack configured to be received within a first recessed area of the door, the first pack having an actuator configured and adapted to move a bolt slidingly housed in the lock pack; a second pack configured to be received within a second recessed area of the door; a reader interface adapted to receive an input from the electronic key and a controller adapted to receive the input from the reader interface, authenticate the input, and control the actuator based on the authentication.

Abstract: A lock mechanism includes a torsion bar that prevents movement of a slide bar abutting a swing bolt. The torsion bar engages the swing bar in a direction transverse to sliding movement to prevent undesired movement away from abutting contact with the swing bolt.

Abstract: An electronic key card lock has a card reader having both card reading electronics and a visual interface integrated into a single unit. Portions of the card reader are made from a light transmitting material that act as both a physical guide for the card and a lens that can distribute light toward the outside of the lock. The light transmitting material houses the card reading electronics and also surrounds a slot that accommodates the key card. A slot in a trim panel of the lock exposes a slot and the front edge of the card reader. When a key card is inserted into the slot of the card reader, one or more light sources in the card reader illuminate to reflect whether the inserted card can open the lock. The light transmitting material distributes the light from the light source so that the front edge of the card reader around the card reader slot is evenly illuminated.

Abstract: A lock assembly includes a single switch actuated by a cam for monitoring the position of a main bolt and an auxiliary bolt. The main bolt and the auxiliary bolt engage and move the cam between an actuated position and a released position. In the actuated position the cam actuates a switch. Actuation of the switch indicates that the auxiliary bolt is retracted and that the main bolt is extended into a locked position. The main bolt includes a tail that engages a portion of the cam to drive the cam to the actuated position. The switch will remain in the actuated condition when the auxiliary bolt is retracted and the main bolt is also retracted.

Abstract: A mortise lockset apparatus (10) that includes a retractable bolt (20) movably supported within a case (12). A handle (18) is pivotally supported on a hub (16) supported in the case, the hub being operably connected to the retractable bolt. The bolt is retracted by turning the door handle. A lock-out mechanism (22) is configured to prevent the handle from being turned when the lock-out mechanism is in an engaged position. The handle lock-out mechanism also includes a cam (29) movably supported in the case and operably connected to a motor (30). A sliding stop (34) is movably supported in the case and is engageable with the handle hub to prevent the handle hub and the handle from turning. The sliding stop is also engageable with a cam surface (40) of the cam. The motor is configured to move the sliding stop by rotating the cam. The cam rotational axis (42) is disposed between diametrically opposed portions of the cam surface to minimize space requirements for the assembly.

Abstract: A key card encoder incorporates a plunger that is pushed downward as the card is manually inserted into a slot in the encoder and a potentiometer whose value changes based on the plunger position to indicate the card's position at all times. As the card is inserted into the slot, a head encodes a magnetic strip on the card as the card is inserted into the slot, while the head verifies the code in the reverse direction as the card is withdrawn from the slot. The slot is illuminated in different colors and flashing patterns to guide the user through the encoding process and notify the user if there is an encoding error.

Abstract: A locking system is disclosed which comprises a microcomputer controlled lock with multiple level keying, i.e. multiple keys having different functions in the locking system. A key reader, for example punch card or magnetic type, reads key code into the microcomputer. A read/write memory has a predetermined number of assigned key codes stored therein and a read-only memory has a control program stored therein for control of the microcomputer. An electrically controlled actuator for the locking means is coupled with an unlocking output of the microcomputer. The control program comprises a main program and a plurality of subroutines each stored at a different location in the read-only memory. A function table has a number of pointers each of which points to the memory address of one of the subroutines. The number of pointers in the function table is equal to the number of locations in the key code memory.

Abstract: A locking system is utilized to control the locking and unlocking of a lock, such as on a door. The lock includes a magnetic card reader for reading a coded key card into a lock computer which in turn determines functions of and access to the lock. The key card includes a key code, key level code, and key record number stored thereon. The lock includes a memory accessed by the computer which is partitioned and includes a level storage area with level records identified by a lock level code and operational information for the level, and a key storage area for storing lock key records identified by a lock record number and associated with at least one lock level for storing key information associated with the record number. The computer validates a key card by reading and comparing the key level code to the lock level code to determine the level and the key record number to one of the lock record numbers identified with the level in the key storage area.