A lock having a reversible latch bolt, wherein the latch bolt comprises a reversing mechanism, the reversing mechanism being arranged to rotate the tip with respect to the main body over 180? along the door width direction from a first angular position to a second angular position, wherein the reversing mechanism comprises a proximal portion of the tip opposite to the distal portion of the tip wherein the proximal portion is arranged to fit inside a receiving portion of the main body and wherein the receiving portion of the main body and the proximal portion of the tip respectively form a female and male cylindrical part such that the tip can be rotated between the first and second angular positions whilst residing in the receiving portion of the main body, the reversing mechanism further comprising a second spring, biased to maintain the tip in the first or second angular position when the tip is respectively in the first or second angular position, and the reversing mechanism comprising a cam and follower assembly, wherein the proximal portion of the tip comprises the cam, wherein the cam is arranged to cooperate with the follower upon rotation of the tip between the first and second angular position, wherein the relative movement of the cam and the follower upon rotation of the tip out of the first or second angular positions loads the second spring and wherein the relative movement of the cam and the follower upon rotation of the tip into the first or second angular positions unloads the second spring.

An electronic locking device to secure linear transitioning or sliding doors. The device design allows for an electronic access point such as an electronic keypad or RFID reader when presented with an approved access code to electronically activate the device and provide for unlocking and relocking. The design also allows for lock status feedback and for automatic relocking of the sliding door when the lock pin is in the extended position and the door is closed.

A latch includes a housing that has a first side and a second side. The latch includes a bolt locking assembly that is positioned at least partially within the housing. The bolt locking assembly includes a bolt movable between first and second positions relative to at least one of the first and second sides of the housing. The bolt is positionable to selectively extend from either the first side or the second of the housing. The latch includes a first handing configuration and a second handing configuration, where the first handing configuration corresponds to the first position and the second handing configuration corresponds to the second position. Changing between the first handing configuration and the second handing configuration requires moving the bolt locking assembly to a disengaged position and applying the external force to the bolt to move the bolt between the first and second positions.

A door lock for a handle, comprises a housing, a rotatable connector inside the housing, a first elastic element and a second elastic element both arranged inside the housing. The rotatable connector is interacted with the handle. The first elastic element is at least configured to provide a restoring force for the handle to return to its origin position when the handle is rotated upward to lock the door, and the second elastic element is configured to provide a restoring force for the handle to return to its origin position when the handle is rotated downward to unlock and open the door, as well as to provide enough resistance to remain handle at its origin position when the handle is released. The door lock is effort-saving for the users to rotate the handle upward, and also adapted for various handles having different weights, to be remained at the origin position when the handle is released.

A multipoint lock assembly for a swinging door panel includes a mortise housing that is installed in a mortise along the non-hinged edge of the door panel. A latch operating mechanism and a lock operating mechanism are disposed in the mortise housing. Each of these mechanisms is designed to be operated with a standard rotary operator such as a handle or knob for the latch operating mechanism and a key and/or thumb turn for the lock operating mechanism. The latch operating mechanism is transitionable between left- and right-hand orientations and includes a deadlatch feature that prevents forced back-drive. Turning the key and or thumb turn of the lock operating mechanism extends a deadbolt and extends upper and lower shoot bolts from edges of the door. When extended, the shoot bolts also are secured against forced back-drive by unique mechanism configurations.

A latch assembly with a first mounting plate and a second mounting plate. The assembly includes a first latch holder extending from the first mounting plate. A second latch holder is provided that extends from the second mounting plate. The assembly includes a latch arm including a first portion and a second portion. The latch arm is movable between an unlatched position and a latched position and is selectively reversible to be pivotally connected to either the first latch holder or the second latch holder.

A multipoint mortise lock mechanism for a swinging door, including a central cassette assembly operably coupled to an upper remote locking point assembly and a lower remote locking point assembly by a remote locking linkage. The central cassette assembly includes a housing, a deadbolt mechanism, a latchbolt mechanism, a remote locking point mechanism and an anti-slam mechanism. The anti-slam mechanism includes an anti-slam plunger that when in an extended position engages the remote locking linkage via a boss and a slot and thereby inhibits movement of the remote locking linkage whereby deployment of the remote locking point assemblies is prevented. The deadbolt mechanism includes a deadbolt extendible from the central cassette that is independently operable from the remote locking point mechanism. The deadbolt mechanism further includes an anti-back drive mechanism.

A door lock for a handle, comprises a housing, a rotatable connector inside the housing, a first elastic element and a second elastic element both arranged inside the housing. The rotatable connector is interacted with the handle. The first elastic element is at least configured to provide a restoring force for the handle to return to its origin position when the handle is rotated upward to lock the door, and the second elastic element is configured to provide a restoring force for the handle to return to its origin position when the handle is rotated downward to unlock and open the door, as well as to provide enough resistance to remain handle at its origin position when the handle is released. The door lock is effort-saving for the users to rotate the handle upward, and also adapted for various handles having different weights, to be remained at the origin position when the handle is released.

A latch includes a housing that has a first side and a second side. The latch includes a bolt assembly that is positioned at least partially within the housing. The bolt assembly includes a bolt movable between an extended position and a retracted position relative to at least one of the first and second sides of the housing. The bolt is biased toward at least one of the extended position and the retracted position, and the bolt is positionable so as to selectively extend from either the first side or the second of the housing in the extended position.

A multipoint lock assembly for a swinging door panel includes a mortise housing that is installed in a mortise along the non-hinged edge of the door panel. A latch operating mechanism and a lock operating mechanism are disposed in the mortise housing. Each of these mechanisms is designed to be operated with a standard rotary operator such as a handle or knob for the latch operating mechanism and a key and/or thumb turn for the lock operating mechanism. The latch operating mechanism is transitionable between left- and right-hand orientations and includes a deadlatch feature that prevents forced back-drive. Turning the key and or thumb turn of the lock operating mechanism extends a deadbolt and extends upper and lower shoot bolts from edges of the door. When extended, the shoot bolts also are secured against forced back-drive by unique mechanism configurations.