Safety device for combination locks
AssigneePresto Lock, Inc.
InventorJoseph J. Orabona
Life of this patent
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Abstract
Safety devices are provided for use with combination locks of the type which permit the combination of the lock to be changed from the faceplate of the lock by manipulation of the same actuator which is employed for opening the lock. The safety devices include removable elements insertable into the lock and engageable with the actuator for preventing movement of the actuator to a combination-changing position, while permitting normal movement of the actuator required to open the lock.
Claims11
For use with a combination lock of the type having a faceplate, a plurality of combination dials extending through slots in the faceplate, and a manually engageable actuator disposed on the faceplate, the actuator being movable from a rest position to an open position to open the combination lock and being movable to a combination-changing position to enable the dials to be rotated to a new combination, a safety device for preventing the combination from being changed, comprising a removable element insertable into an opening in the faceplate adjacent to the actuator and being engageable with the actuator to block movement of the actuator to the combination-changing position.
Dependencies are inferred from the claim text.