Cylinder lock

Details Cylinder lock Cylinder lock

1974-05-21

1976-11-02

Nunberg, Casmir A.

Locks

Operating mechanism

Key

70364R, 70376, 70377, E05B 2900

Patent

active

039889114

ABSTRACT:
A cylinder safety lock the rotor of which carries a plurality of longitudinally extending parallel resiliently flexible elongated longitudinal elements arranged in circumferentially spaced relationship about and at the same radial distance from the longitudinal center line axis of the lock and engageable in the absence of a key with corresponding grooves of an inner coaxially positioned core portion of the stator of the lock to hold said rotor against rotation; said elongated elements being engageable with an inserted key for being deflected radially outwards either into an annular space left between said stator and core for unlocking said rotor when the key is correct or beyond said intermediate space into corresponding grooves of said stator to still lock said rotor when the inserted key is wrong.

REFERENCES:
patent: 1594297 (1926-07-01), Muzzio
patent: 1653511 (1927-12-01), Schlage
patent: 3404548 (1968-10-01), Keefer
patent: 3855829 (1974-12-01), Lipschutz

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