Combination padlock

Details Combination padlock Combination padlock

1976-01-30

1977-09-20

Wolfe, Robert L.

Locks

Portable

Padlocks

70314, 70316, E05B 3706

Patent

active

040488217

ABSTRACT:
A combination padlock has a plurality of permutation tumblers mounted on a ember shiftable in a cavity in the body of the lock to effect a change in combination. Limit means cooperate with the tumblers for preventing the member from being shifted except when the tumblers are set in the correct combination. The member can be shifted in response to movement of the shackle of the padlock, but only when the lock is open. The bolt of the padlock and the shackle are designed to permit the tumblers to be scrambled when the lock is open, thus concealing the correct combination from unauthorized persons, and preventing the combination from being changed while the lock is open.

REFERENCES:
patent: 940763 (1909-11-01), Whalen
patent: 1964936 (1934-07-01), Denerich
patent: 2114073 (1938-04-01), Denerich
patent: 2163852 (1939-06-01), Pond
patent: 2183168 (1939-12-01), Pond
patent: 2183792 (1939-12-01), Eden
patent: 3720082 (1973-03-01), Feinberg
patent: 3766758 (1973-10-01), Heine

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