An electronic cathode lock includes a base formed with an opening that is communicated with an accommodating chamber in the base. In the accommodating chamber, two retaining units are provided symmetrically at two sides of the opening, and two driving units are provided corresponding to the retaining units. The two driving units are configured to position the retaining units to overlap the opening, or make the retaining unit move away from the opening. Thereby, the electronic cathode lock limits a latch in the accommodating chamber or makes the latch get out of the accommodating chamber. Such electronic unlocking of the electronic cathode lock is configured to work with a mechanical lock, thereby electronizing the mechanical lock.

An exemplary access control device includes a locking member having a locked position and an unlocked position; an electronic actuator operably connected with the locking member; a switch connected between the electronic actuator and a power supply, the switch having a closed state in which the electronic actuator is connected to the power supply and is operable to maintain the locking member in the unlocked position, the switch having an open state in which the electronic actuator is disconnected from the power supply; and a manual actuator operable to transition the switch between the open state and the closed state.

A push pad exit device comprising a horizontal push bar actuator mechanically linked to a vertical door handle assembly, for use on the interior side of entrance doors where a means of emergency egress is desired, is presented. The operating mechanisms of the push bar actuator and vertical door handle assembly are concealed presenting a smooth uncluttered appearance. In one mode of operation, the push pad actuator may be moved inwards towards the door face causing the door to unlatch. The push pad exit device may also be equipped with a dogging feature which locks the push bar actuator in the unlatched position. In this mode of operation the door is unlatched and the push pad actuator may be used as a fixed door handle. The push pad exit device may also be equipped with a keyed lock on an external face of the door.

An exit device assembly for use in association with a door having a top, a bottom and a generally vertical surface. The exit door assembly includes an exit device configured to be mounted on the surface of the door, the exit device including a manually movable member, a latch mechanism configured to be mounted adjacent one of the top and the bottom of the door, the latch mechanism including a latch movable between a locking position and a non-locking position, and a non-rigid device for causing movement of the latch in response to movement of the manually movable member.

An exit device located in a door frame having a door strike including a latchbolt assembly, a pushbar assembly, and a link assembly. The latchbolt assembly includes an extended position configured to engage the door strike, and a retracted position configured to move past the door strike. The pushbar assembly moves from a released position to a pressed position to move the latchbolt assembly from the extended position to the retracted position. The link assembly is operatively connected to the pushbar assembly and includes a security link having an elongated aperture and a pin configured to extend through the elongated aperture about which the security link rotates. A keeper surrounds the pin and supports the security link for rotation. In the event of extreme heat, the keeper melts and the security link moves to a position to substantially prevent opening of the door.

A safety lock and access key for doors that otherwise need to remain locked comprising a lock body containing a spring biased catch extending from one end of the body to engage in a keep of the door frame, a lever for moving the catch into the body to unlock the door, and a tool for unlocking locked doors.

A door latch assembly includes a push bar attached to a door panel and connected to an actuating lever, a latch mechanism is attached to the door panel and includes an actuating element, a housing is attached to the seat panel, a rotary latch member is rotatably attached to the housing for engaging with a keeper member, a sliding member is slidably connected to the actuating lever for selectively locking the rotary latch member to the keeper member and for selectively latching the door panel to the door frame, and for allowing the sliding member to be moved away from the rotary latch member with the actuating lever when the push bar is moved toward the casing.

A push pad exit device comprising a horizontal push bar actuator mechanically linked to a vertical door handle assembly, for use on the interior side of entrance doors where a means of emergency egress is desired, is presented. The operating mechanisms of the push bar actuator and vertical door handle assembly are concealed presenting a smooth uncluttered appearance. In one mode of operation, the push pad actuator may be moved inwards towards the door face causing the door to unlatch. The push pad exit device may also be equipped with a dogging feature which locks the push bar actuator in the unlatched position. In this mode of operation the door is unlatched and the push pad actuator may be used as a fixed door handle. The push pad exit device may also be equipped with a keyed lock on an external face of the door.

An exit device assembly for use in association with a door having a top, a bottom and a generally vertical surface. The exit door assembly includes an exit device configured to be mounted on the surface of the door, the exit device including a manually movable member, a latch mechanism configured to be mounted adjacent one of the top and the bottom of the door, the latch mechanism including a latch movable between a locking position and a non-locking position, and a non-rigid device for causing movement of the latch in response to movement of the manually movable member.

A dogging mechanism for an exit device may include a camming element that is configured to rotate between an undogged position and a dogged position. The dogging mechanism may include a first linkage operatively coupled to a latch of the exit device and a second linkage operatively coupled to the camming element. The first linkage may be fixed to the camming element such that movement of the camming element between the undogged position and the dogged position moves the latch between a latched position and an unlatched position, respectively. The camming element may include at least one slot that is at least partially curved, and the slot may receive a pin of the second linkage such that the slot is movable relative to the second linkage to move the camming element between the undogged and dogged positions.