A dampener for an exit device may be disposed between a portion of an exit device actuator and an exit device chassis so that the dampener dampens vibrations to reduce noise of the exit device and/or inhibit unintentional movement of the actuator to an actuated position. The dampener may be composed at least partially of a viscoelastic material.

A dead bolt lock system including a slider member operatively coupled to a dead bolt such that when the slider member is in a first position, the dead bolt is in an extended position. When the slider member is in a second position, the dead bolt is in the retracted position. The system also includes a first movable member positioned in a path of movement of the slider member and configured to be displaced by the slider member to allow the slider member to move to the second position. The system includes a first lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member, a second lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member.

A dead bolt lock system including a slider member operatively coupled to a dead bolt such that when the slider member is in a first position, the dead bolt is in an extended position. When the slider member is in a second position, the dead bolt is in the retracted position. The system also includes a first movable member positioned in a path of movement of the slider member and configured to be displaced by the slider member to allow the slider member to move to the second position. The system includes a first lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member, a second lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member.

A dampener for an exit device may be disposed between a portion of an exit device actuator and an exit device chassis so that the dampener dampens vibrations to reduce noise of the exit device and/or inhibit unintentional movement of the actuator to an actuated position. The dampener may be composed at least partially of a viscoelastic material.

An electronic latch retraction mechanism for an exit device may include an actuator including an output shaft coupled to a crank head, where the crank head is configured to rotate between first and second rotational positions. The electronic latch retraction mechanism may also include a crank coupled to the crank head such that the crank is at least partially rotatable to the crank head, where the crank is configured to engage a push bar of the exit device to move the push bar from the from the extended position to the retracted position when the crank head moves from the first rotational position to the second rotational position.

A dogging mechanism for an exit device may include a progressive latching arrangement to allow for dogging at a plurality of positions of a push bar. An electronic latch retraction device may include a camming arrangement configured to provide mechanical advantage when retracting a push bar of an exit device.

A push bar door exit device includes a latch actuation assembly configured to be installed in a door and including a linearly-movable latch retractor; a door latch operatively coupled to the latch retractor so as to be moved from a latched position to an unlatched position by the linear movement of the latch retractor; and a push bar mechanism configured for being mounted on the door and including a linearly-movable push bar operatively coupled to the latch actuation assembly so as to translate a linear motion of the push bar into the linear movement of the latch retractor.

A dogging mechanism for an exit device may include a progressive latching arrangement to allow for dogging at a plurality of positions of a push bar. An electronic latch retraction device may include a camming arrangement configured to provide mechanical advantage when retracting a push bar of an exit device.

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. The push pad exit device further including an improved roller latch bolt. The improved roller latch bolt allows for a roller to make contact with a ramp surface of a corresponding strike plate on a sweep side of the plate and allows for the roller support to make contact with the strike plate on a latch side of the plate.

A dead bolt lock system including a slider member operatively coupled to a dead bolt such that when the slider member is in a first position, the dead bolt is in an extended position. When the slider member is in a second position, the dead bolt is in the retracted position. The system also includes a first movable member positioned in a path of movement of the slider member and configured to be displaced by the slider member to allow the slider member to move to the second position. The system includes a first lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member, a second lock having a first condition preventing the displacement of the first movable member and a second condition allowing the displacement of the first movable member.