Safety key and locking cylinder, and locking system with...

Locks – Operating mechanism – Key

Reexamination Certificate

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Details

C070S408000, C070S395000, C070S491000, C070S337000

Reexamination Certificate

active

11297373

ABSTRACT:
The safety key has a shank which is provided with a plurality of control surfaces for properly positioning tumblers and has a front end and a rear end. At a front end, the rotor of the associated locking cylinder has at least one further control surface, which interacts with a further control surface arranged at the rear end of the shank. The safety key is backward compatible and is relatively difficult to copy.

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