Combination lock

Details Combination lock Combination lock

1978-11-29

1982-11-16

Wolfe, Robert L.

Locks

Operating mechanism

Combination

70311, 70321, E05B 3704

Patent

active

043589421

ABSTRACT:
A combination lock having a plurality of rotatable tumblers, a knob for positioning the tumblers, a bolt, a bolt cam for operating the bolt to unlock the lock upon proper positioning of the rotatable tumblers by proper clockwise and counter-clockwise rotation of the knob, and locking means for preventing said bolt cam from operating the bolt prior to proper positioning of the rotatable tumblers. According to a preferred embodiment the locking means includes a floating pin unconnected to any structure but moveable within the lock structure between positions preventing and permitting movement of the bolt cam and the knob is longitudinally moveable to engage the bolt cam for operation of the bolt.

REFERENCES:
patent: 1022268 (1912-04-01), Schechter
patent: 3099150 (1963-07-01), Check
patent: 3196643 (1965-07-01), Moss
patent: 4064718 (1977-12-01), Cowen
patent: 4104896 (1978-08-01), Hohn
patent: 4170886 (1979-10-01), Cowen

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