Key controlled lock

Details Key controlled lock Key controlled lock

1976-09-09

1977-09-13

Wolfe, Robert L.

Locks

Operating mechanism

Key

70358, 70362, 70376, E05B 2906

Patent

active

040474097

ABSTRACT:
A key controlled lock for electrical switches, etc., in which a rotatably supported plastic switch actuator element is provided with a substantially diametrically extending keyway at one end to receive a key. Locking fingers of a plastic yieldable locking device normally engage in opposite side of the keyway. The key, upon insertion in the keyway, cams the fingers outwardly to release the actuator element for rotation by the key.

REFERENCES:
patent: 1713602 (1929-05-01), Heiden
patent: 2721470 (1955-10-01), Hensel
patent: 3621682 (1971-11-01), Schmidt
patent: 3802230 (1974-04-01), Tickett
patent: 3855829 (1974-12-01), Lipschutz

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