Cylinder lock

Details Cylinder lock Cylinder lock

1991-11-26

1994-02-15

Cuomo, Peter M.

Locks

Operating mechanism

Key

70360, 70380, E05B 910

Patent

active

052856674

ABSTRACT:
A cylinder lock is disclosed having significant resistance to damage or tampering. The cylinder lock comprises a cam provided on the key cylinder; and a pair of pins disposed radially slidably in openings provided in the sleeve rotatably disposed within a casing. The pins are moved within the openings of the sleeve by the cam on the key cylinder which is rotatably positioned within the sleeve when the key cylinder is turned by a proper key independently of the sleeve to a predetermined angle, as tumblers provided within the key cylinder are disengaged from the sleeve. Then, the pin comes into engagement with and is rotated with the connector together to unlock the lock device.

REFERENCES:
patent: 3167943 (1965-02-01), Schreiber et al.
patent: 3659444 (1972-05-01), Wellekens
patent: 4069695 (1978-01-01), Frank
patent: 4250725 (1981-02-01), Prunbauer
patent: 4841758 (1989-06-01), Ramblier
patent: 4903512 (1990-02-01), Leroy et al.
patent: 4936895 (1990-06-01), Leclerc et al.
patent: 5010755 (1991-04-01), Best
patent: 5040652 (1991-08-01), Fish et al.
patent: 5044183 (1991-09-01), Neyret

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