Compound lock for baggage or parcel lockers and the like

Details Compound lock for baggage or parcel lockers and the like Compound lock for baggage or parcel lockers and the like

1979-09-04

1985-07-16

Wolfe, Robert L.

Locks

Operating mechanism

Key

70139, 70337, E05B 1100

Patent

active

045288291

ABSTRACT:
A key retaining multiple lock mechanism, suitable for parcel lockers and other structures and capable of being mounted on doors for such structures, has a first lock with a first key trapping tumbler mechanism. The first lock has a strike-engaging tongue and a spring loaded bolt cooperating with a second lock dead bolt structure. The dead bolt is operated by a second key to extend and retract the dead bolt. When extended, the dead bolt compresses the spring-loaded bolt when the mechanism is in a locked condition and acts as a stop when the mechanism is in the unlocked condition, preventing relocking of the structure without first retracting the dead bolt with the second key.

REFERENCES:
patent: 174182 (1876-02-01), Bates
patent: 1432720 (1922-10-01), Mosely
patent: 1439042 (1922-12-01), Varnum et al.
patent: 1646987 (1927-10-01), Benham
patent: 2163121 (1939-06-01), Holtzman
patent: 2220786 (1940-11-01), Grainger
patent: 3176487 (1965-04-01), Davenbaugh
patent: 3813905 (1974-06-01), Sauder

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