Abstract: An exit device that includes a locking mechanism for locking and unlocking a door, the locking mechanism having a latch bolt, and a link connected to the latch bolt, movement of the link between locked and unlocked positions causes movement of the latch bolt between an extended state and a retracted state to lock and unlock the door, and a motor operably connected to the link. A method of operating the exit device includes operating the motor to move the link in a first direction toward the unlocked position, the motor being operated until the link reaches a hard stop position; thereafter determining a soft stop position based on the hard stop position; and thereafter selectively using the motor to move the link in the first direction toward the unlocked position, the motor being operated only until the link reaches the soft stop position.

Abstract: An exit device includes a housing, a latchbolt coupled to and movable relative to the housing, and an auxiliary bolt coupled to the housing and movable relative to the latchbolt. The exit device also includes a deadlock link coupled to the housing and movable relative to the latchbolt and the auxiliary bolt between a first position, in which the deadlock link allows movement of the latchbolt relative to the housing, and a second position, in which the deadlock link inhibits movement of the latchbolt relative to the housing. The exit device further includes a spring biasing the auxiliary bolt into engagement with a portion of the deadlock link to move the deadlock link toward the first position.

Abstract: A lock assembly for use with a door movably coupled to a door frame. The lock assembly includes a housing, a control member, a latchbolt, and a locking member. The control member is movably coupled to the housing from a locked position to an unlocked position to allow the door to move with respect to the door frame. The latchbolt moves with respect to the housing in a first direction and a second direction. The locking member is configured for engagement with the control member to move the locking member with respect to the housing into and out of an engaged position with respect to the latchbolt. The locking member includes a surface that contacts the latchbolt when the locking member is in the engaged position to substantially prevent movement of the latchbolt in the first and second directions.

Abstract: A latchbolt configured for use with a door lock assembly. The door lock assembly is configured for interaction with a strike coupled to a door frame, and operable to place the latchbolt in a locked configuration using the strike to generally prevent rotation of the door and an unlocked configuration to allow rotation of the door. The latchbolt includes a first member and a second member movably coupled to the first member. When the latchbolt is in the locked configuration the second member is movable relative to the first member from a first position to a second position in response to a predetermined force applied to the door.

Abstract: An electronic security system. The system includes a plurality of electronic security devices. Each of these devices includes an input/output module that receives and decodes electronic signals and governs the functionality of the electronic security device. The system also includes a power supply module. The power supply module sends electrical power and modulated commands to the plurality of electronic security devices over power lines.

Abstract: A lock assembly for use with a door movably coupled to a door frame. The lock assembly includes a housing, a control member, a latchbolt, and a locking member. The control member is movably coupled to the housing from a locked position to an unlocked position to allow the door to move with respect to the door frame. The latchbolt moves with respect to the housing in a first direction and a second direction. The locking member is configured for engagement with the control member to move the locking member with respect to the housing into and out of an engaged position with respect to the latchbolt. The locking member includes a surface that contacts the latchbolt when the locking member is in the engaged position to substantially prevent movement of the latchbolt in the first and second directions.

Abstract: A latchbolt configured for use with a door lock assembly. The door lock assembly is configured for interaction with a strike coupled to a door frame, and operable to place the latchbolt in a locked configuration using the strike to generally prevent rotation of the door and an unlocked configuration to allow rotation of the door. The latchbolt includes a first member and a second member movably coupled to the first member. When the latchbolt is in the locked configuration the second member is movable relative to the first member from a first position to a second position in response to a predetermined force applied to the door.

Abstract: A control assembly configured for a narrow stile door and for interaction with an exit device. The control assembly provides a means to translate user input, such as rotating a lever to operate a centercase. The control includes a slider for sliding movement within a housing between a first position extending a latchbolt of the exit device and a second position withdrawing the latchbolt. The control assembly configuration incorporates a swivel locking latch rotatable into the path of the slider to prevent the slider from moving out of the first position.

Abstract: A control assembly configured for a narrow stile door and for interaction with an exit device. The control assembly provides a means to translate user input, such as rotating a lever to operate a centercase. The control includes a slider for sliding movement within a housing between a first position extending a latchbolt of the exit device and a second position withdrawing the latchbolt. The control assembly configuration incorporates a swivel locking latch rotatable into the path of the slider to prevent the slider from moving out of the first position.

Abstract: An electronic security system. The system includes a plurality of electronic security devices. Each of these devices includes an input/output module that receives and decodes electronic signals and governs the functionality of the electronic security device. The system also includes a power supply module. The power supply module sends electrical power and modulated commands to the plurality of electronic security devices over power lines.

Abstract: An electrically controlled strike including a strike frame; a keeper carried by the strike frame for movement when released allowing door opening and adapted to receive and resist door opening prior to keeper movement, an electrically powered solenoid carried by the frame, and a lock arm assembly operatively connected between the solenoid and the keeper for causing the keeper to assume a fail-safe condition allowing keeper movement when the solenoid is unpowered or alternatively a fail-secure condition preventing keeper movement when the solenoid is unpowered, the two conditions being selected by re-positioning an actuator.

Abstract: A sliding deadbolt for use with an exit alarm lock having deadbolt guide supports which are closer to the centerline of the deadbolt than the point at which the exit alarm lock drivers contact the deadbolt to move the deadbolt between a retracted position and an extended position. By placing the guide supports closer the deadbolt centerline, the resistive forces between the deadbolt and the support/bolt contact points as a result of loads on the deadbolts (such as from the exit alarm lock drives), are reduced.

Abstract: An improved exit alarm lock including a push pad moveable between an extended position and a depressed position; a pivotable first bell crank, a first end of the first bell crank being connected to a first end of the push pad; a pivotable support connected to a second end of the push pad; and a deadbolt moveable between a retracted position and an extended position, a second end of the first bell crank directly engaging the deadbolt, whereby when the push pad is moved to the depressed position, the push pad pivots the first bell crank, the first bell crank second end contacts the deadbolt and moves the deadbolt from the extended position to the retracted position.

Abstract: An electrically controlled strike including a strike frame; a keeper carried by said strike frame for movement when released allowing door opening and adapted to receive and resist door opening prior to keeper movement; an electrically powered solenoid carried by said frame; means operatively connected between the solenoid and the keeper for causing the keeper to assume a fail-safe condition allowing keeper movement when said solenoid is unpowered or alternatively a fail-secure condition preventing keeper movement when said solenoid is unpowered; the two conditions being selected by repositioning an actuator.

Abstract: A switching assembly for use with an exit alarm lock. The switching assembly uses two reed switches which must both be closed for the alarm horn to sound. An arm/disarm switch is operated by a magnet on a pivotable switch link which is operated by a link boss on rotatable deadbolt cams which are operated by the key cylinders. An alarm switch is operated by a magnet in the deadbolt.