Combination lock
OwnerJanos Szovainventor
Life of this patent
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Abstract
A combination lock includes a plurality of ratchet wheels which are moved to a lock-open position by the operation of a removeably mounted finger dial, which is similar to a telephone dial. Operation of the finger dial moves a pawl which travels in a row of circular tracks, each in alignment with a ratchet wheel, with the pawl moving in succession from track to track to rotate individual ratchet wheels as successive numbers are dialed.
Claims10
A combination lock comprising a lock housing, dial means rotatably mounted on said lock housing, a plurality of ratchet wheels rotatably mounted in an aligned stack within said housing, for individual movement between a normal lock-closed position and a lock-open position, pawl means movably mounted in said lock housing, means providing a driving connection between said pawl means and said dial means for movement of said pawl means in a circular path in response to turning movement of said dial means, and guide means disposed within said lock housing for guiding said pawl means into successive engagement with each of said ratchet wheels responsive to operation of said dial means, said guide means comprising a plurality of tracks formed in said lock housing, each of said tracks being in alignment with a respective ratchet wheel.
Dependencies are inferred from the claim text.