Multipoint lock assembly for a sliding door

Closure fasteners – Bolts – Multiple

Patent

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Details

292333, 29234115, 292DIG46, E05C 900

Patent

active

055427200

ABSTRACT:
A multipoint lock assembly is provided for securing a sliding door in a tightly closed and locked condition. The multipoint lock assembly comprises a plurality of latch cartridges mounted at vertically spaced positions along a free side edge of a sliding door, wherein the latch cartridges each include a keyhole-shaped latch port and are movable together for engaging headed latch pins mounted on an adjacent door jamb. A main actuator cartridge is mounted on the door for moving the latch cartridges to an unlatched position to permit door movement to an open position in response to rotation of a door handle. A trigger assembly retains the latch cartridges in the unlatched position until the door is closed, at which time the trigger assembly releases the latch cartridges for spring-loaded movement to a latched position engaging the latch pins. A security deadbolt is also provided on the main actuator cartridge and can be thrown when the door is closed for positively locking the door.

REFERENCES:
patent: 2734764 (1956-02-01), Angelo
patent: 2793896 (1957-05-01), Duvall
patent: 4480862 (1984-11-01), Fleming
patent: 4597599 (1986-07-01), Bisbing
patent: 4779907 (1988-10-01), Yu
patent: 5120094 (1992-06-01), Eaton et al.
patent: 5290077 (1994-03-01), Fleming
patent: 5373716 (1994-12-01), MacNeil et al.

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