Locking device for an auxiliary lock

Details Locking device for an auxiliary lock Locking device for an auxiliary lock

1991-12-02

1992-09-29

Gall, Lloyd A.

Locks

Special application

For control and machine elements

70218, 70224, 70379R, 70381, 70386, 70422, 70472, 74527, 74528, 74529, 292252, 2923363, E05B 904

Patent

active

051505924

ABSTRACT:
A locking device for an auxiliary lock comprising a rotatable ring provided with inner teeth around the inner peripheral surface and a traditional lock additionally provided with a lateral hole to fit a spring and a steel ball pushed by the spring therein, the ball extending a little out of the lateral hole to engage with the inner teeth in the rotatable ring, the inner teeth being able to be felt surely to slide over the ball when the rotatable ring is rotated.

REFERENCES:
patent: 1859130 (1932-05-01), Dant
patent: 2095100 (1937-10-01), Maillard
patent: 3464243 (1969-09-01), Hawkins
patent: 4679420 (1987-07-01), Yang
patent: 4941697 (1990-07-01), Fan
patent: 5010749 (1991-04-01), Lin
patent: 5040652 (1991-08-01), Fish et al.

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