A latch control device includes a mounting seat and a locking cap device pivotably mounted to the mounting seat and pivotable relative to the mounting seat between a closure position and a non-closure position. Optionally mounted to the latch control device are a first accessory, a second accessory, a third accessory, a first escutcheon, and a second escutcheon. The latch control device is selectively assembled into a first mode (including a detecting device), a second mode (including the detecting device, the first accessory, and the third accessory), or a third mode (including the detecting device, the first accessory, and the second accessory) for cooperating with a cylindrical latch device, a first box type latch device, or a second box type latch device.

An electric control device for a latch includes a mounting seat having including a first compartment and a second compartment. An electric locking device includes a bracket securely mounted in the second compartment and a driving member securely mounted to the bracket. The driving member for actuating the locking member is coupled with a locking member. The locking member includes a stop portion having a protrusive end abutting a first face of the bracket without interfering with movement of the locking member. A locking cap device is pivotably connected to the mounting seat and is received in the first compartment. The locking cap device includes an inner side having a first protrusion corresponding to the stop portion. When the stop portion is located on a rotational path of the first protrusion, the locking cap device is not pivotable from a closure position to a non-closure position.

A surface-mountable electric strike having a keeper arranged to pivot about a first shaft extending in a longitudinal direction; a lock lever for locking the keeper in a door-locking position, the lock lever being arranged to pivot about a second shaft extending in a direction that is transverse to the longitudinal direction and parallel to the backside of the strike; and an actuation mechanism for actuating the lock lever, the actuation mechanism comprising an electromagnet that is situated next to the lock lever in a direction which is substantially perpendicular to the backside of the strike thereby enabling the electromagnet to act directly upon the lock lever providing a simple construction. Moreover, the orientation of the second shaft enables arranging the lock lever, and the electromagnet, above and/or underneath the keeper, thereby reducing the total depth of the strike.

Various implementations of an electric strike are described that includes a casing housing that includes a power source, a lock mechanism, circuitry powered by the power source, the circuitry being configured to authenticate a user, and electro-mechanically actuate the lock mechanism, and a rotor coupled to the lock mechanism, the rotor being powered by the power source and configured to situate the lock mechanism based on a lock state of the electric strike.

An illumination system is provided for an access door may include an elongated illumination housing configured to be coupled to at least one of an upstanding jamb and a corresponding jamb casing extending along the one side of the access door, an elongated light transmissive cover coupled to the illumination housing, an elongated light pipe received within the illumination housing, an illumination source housing operatively coupled to one end of the light pipe, an illumination source disposed within the illumination source housing and configured to produce and transmit visible light into the light pipe so as to be visible through the light transmissive cover, a source of electrical power, and a control unit configured to selectively apply electrical power from the source of electrical power to the illumination source to produce the visible light.

A door-lock system includes a door latch adapted to be coupled to one of a door or to a structure defining the passageway through which the door restricts passage. The door-lock system may further include a latch lock adapted to be coupled to the other of the door or to the structure defining the passageway to selectively mate with the door latch to block the door from opening.

Lock device (1) which incorporates a closure assembly (2) that can move between an open position and a closed position, a locking device to lock said closure assembly (2) in the closed position, a first actuator (3, 31) and a second actuator (4, 41), both the first actuator (3, 31) and the second actuator (4, 41) having a locked position, in which a locking or retention action is applied, and an unlocked position, both the first and the second actuators having respective control devices which allow orders to be given to change the position of each respective actuator, wherein the first actuator and the second actuator are arranged in such a way that unlocking the locking device requires that both control devices place their respective actuator in the unlocked position.

In one aspect the present invention provides a door strike which prevents the opening of an associated door when the door strike has been heated to an elevated temperature of at least about 1000° F., preferably when the door strike is at higher temperatures such as are present during a fire in a building structure. The door strike includes a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature. A further aspect of the invention is a method for controlling the undesired spread of a fire or smoke between adjacent spaces separated by the door wherein a fire or smoke condition exists in at least one of these spaces, via the provision of a door strike having a thermally responsive element which retards the normal operation of the door strike when it is at an elevated temperature.

An exemplary electric strike includes a housing and a keeper pivotally mounted in the housing. The strike also includes a plunger having an extended position and a retracted position, a cage including an aperture, and a locking element movably seated in the aperture. The locking element is engaged with the plunger, and the plunger is structured to urge the locking element radially outward as the plunger moves from an extended position toward a retracted position. The strike also includes a sleeve, a transmission engaged with the sleeve, and a motor drivingly coupled to the transmission. The sleeve is structured to selectively prevent radially outward movement of the locking element and retraction of the plunger. The strike also includes at least one of a lost motion connection and an anti-tamper mechanism.

An electro-mechanical unlocking device that includes a locking state, a holding state and an unlocking state. The unlocking device includes an arming solenoid and a holding solenoid. In the locking state the arming solenoid moves an arming assembly, which moves a crank and which moves a holding armature from a second position to a first position. In the holding state the holding solenoid is energized and the arming solenoid is de-energizing, which allows the arming armature to moves from the first position to the second position. In the unlocking state the holding solenoid is de-energized, which allows the holding armature and the arming link to move from the first position to the second position. In the locking and holding states a sear blocks the path of the striker and in the unlocking state the sear does not block the path of the striker.