Combination lock mechanism

Details Combination lock mechanism Combination lock mechanism

1979-05-17

1981-09-08

Wolfe, Robert L.

Locks

Operating mechanism

Combination

70312, E05B 6300

Patent

active

042877342

ABSTRACT:
Indicating wheels of a combination lock are normally viewed through respective windows which are displaced from alignment with the wheels when the lock is released. The wheels are then obscured so that the combination to which the lock has been set for release cannot be observed. The windows contain optical lenses.

REFERENCES:
patent: 1002338 (1911-09-01), Tamburini
patent: 1652897 (1927-12-01), Hill
patent: 1942454 (1934-01-01), Samburg
patent: 2690664 (1954-10-01), Miller
patent: 3405544 (1960-10-01), Gehrie
patent: 3597945 (1971-08-01), Feinberg
patent: 3835680 (1974-09-01), Evans
patent: 3851507 (1974-12-01), Gehrie
patent: 4155234 (1979-05-01), Bako

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