Abstract: A multi-point lock assembly includes a pair of spaced apart latching members for locking sliding doors, windows or other similar structures. The lock assembly includes a housing rotationally supporting a pair of actuators provided with a plurality of gears arranged in meshed engagement with one another. The latching members are formed as threaded bolts received within the distal end of a long and short arm assembly. As the actuators are rotated, the distal end of the long and short arm assemblies track along the track within the sidewalls. The track causes each of the bolts to be displaced vertically and longitudinally along the longitudinal axis of the housing from an unlatched position to a latched position. The bolts are adjustable by vary their threaded engagement within the distal ends of the arm assemblies for alignment with the opposing keeper.

Abstract: A multipoint sliding door latch including a housing, a pair of vertically spaced upper and lower hooks mounted in the housing for movement between a retracted, unlatched position within the housing and an extended, latched position extending out of the housing for engagement with a keeper structure of an associated jamb, upper and lower rotary actuators mounted in the housing in vertically spaced side by side relation between the upper and lower hooks, an upper link mechanism interconnecting the upper actuator and the upper hook and operative in response to rotary movement of the upper actuator to move the upper link from an unlatched to a latched position, and a lower link mechanism interconnecting the lower actuator and the lower hook and operative in response to rotary movement of lower actuator to move the lower hook from an unlatched position to a latched position. The latch further includes a rack positioned between the actuators and defining gear teeth on opposite parallel faces thereof.

Abstract: A multi-point latch assembly having a locking unit operably positioned in a closure member such as a door or window. The latch unit has a pair of latches with slots formed therein permitting the latches to simultaneously slide and pivotally engage a stationary pin. A keeper unit is operably positioned in a stationary member such as a door jam in a wall or a window sash. The keeper unit has a pair of pivotally movable hooks for selectively engaging the pair of latches in the latch unit. The latch unit has an actuator unit located internal to the latch unit for causing the hooks and latches to engage one another. The closure member is prevented from moving relative to the stationary member without first disengaging the hooks and latches from one another. The multi-point latch assembly has a stop rod located in the keeper unit. A release button located on the latch unit engages the stop rod when the closure member is closed.