A latch mechanism having an adjustment mechanism that adjusts the distance to which a latch bolt extends into a mating recess. The adjustment mechanism may include a driver component and a driven component. Rotation of the driver component about a first axis may displace the driven component, thereby causing the position of the latch bolt to be adjusted along a second axis that is non-parallel to the first axis. According to certain embodiments, the first axis is perpendicular to the second axis. The latch mechanism may also include an inner housing that is displaced as the latch bolt is extended into, and retracted from, a mating recess in an adjacent structure. Further, the position of the inner housing may remain generally static as the position of the latch bolt is adjusted along the second axis via operation of the adjustment mechanism.

A surface mounted electric strike for selectively retaining a door latch of a door is provided. A strike housing defines a cavity and is mounted to a door frame surface. A keeper is mounted within the housing and rotatable between a latched position and an unlatched position. The keeper includes a keeper stop face that is disposed at an angle relative to a keeper face to limit the rotation of the keeper about the axis of rotation between about 45-60 degrees when the keeper moves between latched and unlatched positions. An actuating assembly is configured for moving between a first mode and a second mode, wherein when the actuating assembly is in the first mode the keeper is prevented from moving toward the unlatched position, and wherein when the actuating assembly is in the second mode the keeper is permitted to move toward the unlatched position.

A floodgate is disclosed. The floodgate comprises: a panel for installation at a doorway to form a barrier against flooding; a hinge, the panel being movable between an opened position and a closed position about an axis of the hinge, the axis extending in use in an upright direction; and a sealing element coupled to an edge of the panel to provide sealing engagement with the ground when the panel is in the closed position thereby forming the barrier against flooding; wherein the hinge is configured to corporate with the panel to, upon the panel being moved from the closed position towards the opened position, cause the panel to move away from the ground thereby releasing the sealing engagement between the sealing element and the ground.

A blocking structure of an anti-fire door lock includes a latch set, a blocking pin set and a blocking base, wherein the latch set comprises a lock base and a latch that pivotally connected to the lock base. The blocking pin set disposed in an accommodating hole of the latch comprises a blocking pin and an elastic member, and the blocking base comprises a constraining slot. The elastic member is used for pushing the blocking pin to move and making the blocking pin to lodge into the constraining slot to prevent an anti-fire door from being opened.

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 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.

A cross bar type unlock-driving structure, to be mounted in a panel-outside space of a door panel, includes a handle-end frame, a mounting frame, a handle and a driving member, and a handle seat. The handle-end base includes a basic frame and a mounting frame to form an accommodation space with both vertical and horizontal opening. The handle and the driving member, integrated as a unique piece, provide the driving member to be formed as an extension finger for pushing an unlock-driven unit disposed inside the accommodation space. The handle seat, mounted onto the middle plate of the mounting frame, is to mount pivotally the handle and the driving member with the driving member located in the accommodation space and the handle located out of the handle seat. With the vertical and horizontal opening provided to the accommodation space, different types of lock cartridges can be contained.

A door latch assembly includes two receptacles mounted to a door panel and spaced from each other, two latchbolts pivotally attached to the receptacles for engaging with strikes and for locking the door panel to a door frame, two sliding members slidably engaged in the receptacles and each having a protrusion for engaging with the latchbolts, two spring biasing members engaged between the sliding members and the receptacles for biasing the sliding members toward the strikes, and two actuating levers connected between the sliding members and a push bar for allowing the sliding members to be moved away from the latchbolts by the push bar with the actuating levers selectively.

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 egress entrance system (1) comprising a swing door member (10) having a door leaf (12), an initiate device (13) for initiating a panic opening, and an automatic door operator (30) is provided. The automatic door operator (30) has a motor (34) capable of causing movement of the door member (10), a controller (31) for controlling operation of the motor (34), and the automatic door operator (30) being operable in a testing mode (60) and an operational mode, wherein the controller (31) is configured, in the testing mode (60), to automatically determine at least one test parameter; and causing an action in response to the determined test parameter.