Cylinder lock modified for use with a card reader unlocking mech

Details Cylinder lock modified for use with a card reader unlocking mech Cylinder lock modified for use with a card reader unlocking mech

1990-02-06

1991-04-09

Nicholson, Eric K.

Closure fasteners

Operators with knobs or handles

70432, 292 1, 292DIG37, F05B 4100

Patent

active

050058843

ABSTRACT:
The pushing in of the push-button of the cylinder lock is detected by detecting the associated motion of the locking rod. An electronic signal is provided upon the detection of such motion. In specific embodiments, the detector consists of a switch mounted on either the locking rod or locking rod cylinder, and an associated cam mounted on either the locking rod cylinder or the locking rod.

REFERENCES:
patent: 2193349 (1940-03-01), Schlage
patent: 3125876 (1964-03-01), Kuchler
patent: 3600916 (1971-08-01), Ruppert
patent: 4559796 (1985-12-01), De Forrest, Sr.
patent: 4683741 (1987-08-01), Fields

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