An improved door lock mechanism is a door locking device having heavy plates that sandwich the door frame above or below the door knob of a door with bolts passing through the plates to secure it to the door frame, and a barrel lock accessible through the outside plate with a barrel key. The locking mechanism is attached to a locking bar on the inside that is attached to a lock shaft rotatable on the door frame side which rotates downward into a slot formed in a plate that is attached to the inside of the door adjacent the frame plates. Together the frame plates, the door plate, and the rotating bar function as a door bar.

A low profile actuating window lock for casement windows having a longitudinal slot in a sidewall of the casing for the lock, wherein a fork component translates within the slot in a direction perpendicular to an axis of rotation of the handle and the handle rotates along a plane perpendicular to the fork component, the handle pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle and restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.

A low profile actuating window lock for casement windows having a longitudinal slot in a sidewall of the casing for the lock, wherein a fork component translates within the slot in a direction perpendicular to an axis of rotation of the handle and the handle rotates along a plane perpendicular to the fork component, the handle pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle and restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.

A security reinforcement system for a door assembly having a door frame with first and second spaced-apart vertical structural supports and a door hinged thereto has first- and second-channel base plates respectively mountable to the first and second vertical structural support. Pivotally attached to the first and second base plates, respectively, are first and second opposed pluralities of security arms which rotate from a retracted position to an extended position in which security arms of the opposed pluralities extend toward each other across a portion of the door, reinforcing the door when first and second actuator arms operatively coupled to the first and second pluralities, respectively, are rotated from a vertical position to a horizontal position and are releasably coupled together by a sleeve.

A door-locking mechanism is for locking a door of a cabinet with respect to a main body of the cabinet. The door-locking mechanism includes a supporting component being operatively mountable onto the door, a driving component being operatively moveable with respect to the supporting component between at least first and second configurations, and at least one transmission component being operatively moveable with respect to the supporting component between drawn-in and drawn-out configurations. The door-locking mechanism also includes at least one locking rod being operatively connectable to the at least one transmission component and being movable between disengaged and engaged configurations with respect to a corresponding catch-rod of the cabinet, in response to the at least one transmission component being operated between the drawn-in and drawn-out configurations respectively, via an operation of the driving component from the first to the second configuration.

A poultry cage door assembly includes a main body, a secondary body, and a bracket. The main body includes a main first lateral end extending from a main front side to a main rear side and from a main upper end to a main lower end. The main first lateral end includes a first keyed arrangement and a first bracket-receiving feature. The secondary body includes a secondary first lateral end extending from a secondary front side to a secondary rear side and from a secondary upper end to a secondary lower end. The secondary first lateral end includes a secondary keyed arrangement and a second bracket-receiving feature. The secondary keyed arrangement is configured to mate with the first keyed arrangement. The first bracket is mateable with the first bracket-receiving feature and the second bracket-receiving feature.

A low profile actuating window lock for casement windows having a handle actuate a lifter that slides vertically on a fork component in slidable communication with the window lock casing, the handle pivotable about the lifter and pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle, lifter, restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.

A low profile actuating window lock for casement windows having a handle actuate a lifter that slides vertically on a fork component in slidable communication with the window lock casing, the handle pivotable about the lifter and pivotable about a restrictor arm that pivots relative to the casing, allowing the handle to rotate fully from the locked position to the unlocked position with low clearance from the window frame. The pivot points of the handle, lifter, restrictor arm configuration allow for an over center linkage that prevents back driving the casement window lock.

A high security locking system can be used in a conventional pivot door adapted for use with a latch and deadbolt lock combination. The high security system can be a multi-point lock, received in a recess formed in a locking edge side of a door stile, cooperating with a linkage or other mechanism in a conventional deadbolt/location. The lock can be actuated with a keyed cylinder and thumb turn combination.

A high security locking system can be used in a conventional pivot door adapted for use with a latch and deadbolt lock combination. The high security system can be a multi-point lock, received in a recess formed in a locking edge side of a door stile, cooperating with a linkage or other mechanism in a conventional deadbolt/location. The lock can be actuated with a keyed cylinder and thumb turn combination.