Closure fasteners – Adjustable backset
Patent
1992-12-10
1994-11-29
Cuomo, Peter M.
Closure fasteners
Adjustable backset
292167, 70143, 70152, E05C 112
Patent
active
053683455
ABSTRACT:
A multifunction hinged door lock with independently biased lever assemblies positioned one on each side of a door that drive the latch bolt of a latchbolt subassembly through the medium of a drive slide positioned for slidable movement in the sub assembly. The lever assemblies include at least one lock actuator such as a keyed cylinder to optionally displace at least one locking device between locked and unlocked configurations.
The subassembly may optionally include an extended length bolt, a detent to restrain the bolt from fully extending prior to latching and optionally also include a detent to restrain the bolt from fully displacing prior to locking. The subassembly may optionally include an extended length bolt with a latching lever to assist initial latching.
The subassembly may also optionally include a facility whereby inward displacement of the bolt during latching drives the locking device to the unlocked position if it were actuated to the locked position prior to latching.
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Cuomo Peter M.
Dino Suzanne L.
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