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AssigneeRichard S. Adler
InventorsRichard S. Adler, Paul F. Morris, Karl D. Kirk, John Milich, Gerard M. Perichon
Estimating the term…
A lock which is rekeyable or programmable to operate with a different key from the exterior thereof without disassembling it or removing it from a lock assembly in which it is assembled is disclosed. The lock may be rekeyed through the keyway so that the lock appears from the exterior thereof to be a conventional lock, or from the end opposite the keyway from the interior of a door, or from a side of the lock which requires disassembly of the lock from its lock assembly. The lock includes structure defining a movable shear line that can be adjusted from the exterior of the lock without disassembling the lock itself. Such structure may comprise a rotatable cam and a pin tumbler and an axially adjustable set screw. Security of the lock is improved by selectively restricting or blocking access to the rekeying of the lock in the interior thereof with a gate or shutter, or various combinations of gates or shutters.
A lock assembleable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A lock assemblable into a lock assembly and selectively operable therein by each of a plurality of different keys comprising:
A pin tumbler lock adjustable to operate with different ones of a plurality of selected keys, said lock adapted to being assembled into a lock assembly, a pin tumbler system including a plurality of pin tumblers and a plurality of rotatable members which cooperate to define a plurality of common shear lines across which a selected rotatable member or members may be rotated by said plurality of selected keys, means defining an adjustable shear line adjustable from the exterior of said lock such that after adjustment of said adjustable shear line said lock is operable with a one of said plurality of selected keys which positions said pin tumblers to form a common shear line aligned with said adjustable shear line, and means not accessible from the exterior of said lock assembly but accessible from the exterior of said lock without disassembling said lock which engage said means defining said adjustable shear line for adjusting it.
A pin tumbler lock assemblable into a lock assembly adjustable to operate with different ones of a plurality of selected keys, said lock comprising a pin tumbler system including a plurality of pin tumblers and a plurality of rotatable members which cooperate upon positioning of said pin tumblers by said plurality of selected keys to define a plurality of common shear lines across which a selected rotatable member or members may be rotated by said plurality of selected keys to operate said lock, and means defining an adjustable shear line adjustable from the exterior of said lock assembly into a plurality of adjusted positions, without requiring use of any of said plurality of selected keys which operate said lock, such that after adjustment of said adjustable shear line to a one of said adjusted positions, said lock is only operable with a one of said plurality of selected keys which positions said pin tumblers to form a common shear line aligned with said adjustable shear line in said one adjusted position thereof, said lock including means preventing readjustment of said adjustable shear line defining means to a position thereof after said adjustable shear line defining means has been adjusted out of that position.
A pin tumbler lock assemblable into a lock assembly adjustable to operate with different ones of a plurality of selected keys, said lock comprising a keyway into which each of said plurality of keys is inserted to operate said lock, a pin tumbler System including a plurality of pin tumblers and a plurality of rotatable members which cooperate upon positioning of said pin tumblers by said plurality of selected keys to define a plurality of common shear lines across which a selected rotatable member or members may be rotated by said plurality of selected keys, means defining an adjustable shear line adjustable through an opening in said lock from the exterior of said lock assembly into a plurality of positions such that after adjustment of said adjustable shear line to a one of said adjusted positions, said lock is operable with a one of said plurality of selected keys which positions said pin tumblers to form a common shear line aligned with said adjustable shear line in said one adjusted position thereof, said lock including means inside said lock for selectively restricting access from the exterior of said lock through said opening to operating said means actuable from the exterior of the lock.
A combination key for locking and unlocking a pin tumbler lock and for rekeying said lock, said key including pin tumbler engaging surfaces for positioning said pin tumblers when inserted into said lock and a shaft movably mounted to said key for movement independently of said tumbler positioning surfaces for engaging rekeying structure in said lock accessible through the keyway of said lock.
A pin tumbler lock assemblable into a lock assembly adjustable to operate with different ones of a plurality of selected keys, said lock comprising a keyway into which each of said plurality of keys is inserted to operate said lock, a pin tumbler system including a plurality of pin tumblers and a plurality of rotatable members which cooperate upon positioning of said pin tumblers by said plurality of selected keys to define a plurality of common shear lines across which a selected rotatable member or members may be rotated by said plurality of selected keys, means defining an adjustable shear line adjustable through an opening in said lock from the exterior of said lock assembly into a plurality of positions such that after adjustment of said adjustable shear line to a one of said adjusted positions, said lock is operable with a one of said plurality of selected keys which positions said pin tumblers to form a common shear line aligned with said adjustable shear line in said one adjusted position thereof, said lock including means inside said lock for locking said adjustable shear line means and a key insertable from the exterior of said lock for unlocking said locking means.
Dependencies are inferred from the claim text.