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US 4,676,083 AGranted
Locking mechanism with actuator
OwnerBruce S. Sedley, Armin Eisermanninventors
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OwnerBruce S. Sedley, Armin Eisermanninventors
Estimating the term…
The lock housing has a slot in a top wall via which a coded card key can be inserted to bring into alignment coded magnetic areas on the card with magnetically responsive elements of the lock to unlock the locking mechanism and enable rotation of either a knob or lever arm to open the door. The card moves a spring actuator against a coupling spline to engage it with a spindle spline carried by a shaft interconnected with the knob or lever arm handle. The sliding coupling spline is integral with parts which interrelate with the door lock mechanism such that rotation of the knob or lever arm will now effect release of the door locking mechanism. When the card is fully inserted, the mechanism is maintained in the unlocked condition and the card may be released to turn the knob or handle with the same hand. Spring-loaded members separate the coupling and spindle splines as the magnetic card key is withdrawn from the housing slot. Once the internal lock mechanism is unlocked, it is maintained unlocked until the magnetic card has been withdrawn from the lock housing.
In a card-operated lock apparatus having a locking plate with a plurality of openings therethrough in a predetermined arrangement, a core located adjacent the locking plate including a plurality of openings therein in said predetermined arrangement, magnetizable pins located within at least certain of the core openings and having parts magnetically biased to extend into the locking plate openings preventing relative movement between the core and locking plate, said pins being moved out of the locking plate openings on a card having coded magnetic areas being inserted on a first amount into alignment with the core and the effecting movement of the core corresponding to further card movement, the improvement comprising:
In apparatus for selectively meshing a spindle spline with a coupling spline interconnected with a door release mechanism including a housing for mounting on the door outer surface, a locking plate having a plurality of openings therethrough in a predetermined arrangement, a core located adjacent the locking plate having a plurality of openings therein in said predetermined arrangement, magnetizable pins located within at least certain of the core openings and having parts magnetically biased to extend into the locking plate openings preventing relative movement between the core and locking plate, said pins being moved out of the locking plate openings by a card having coded magnetic areas being inserted a first amount through a slot in said housing enabling movement of the core corresponding to further card movement, the improvement comprising:
In a card-operated lock apparatus having a locking plate with a plurality of openings therethrough in a predetermined arrangement, a core located adjacent the locking plate including a plurality of openings therein in said predetermined arrangement, magnetizable pins located within at least certain of the core openings and having parts magnetically biased to extend into the locking plate openings preventing relative movement between the core and locking plate, said pins being moved out of the locking plate openings by a card having coded magnetic areas being inserted a first amount through a slot in said housing enabling movement of the core corresponding to further card movement, the improvement comprising:
Dependencies are inferred from the claim text.