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US 12,037,816 B2Granted
Dual locking combination padlock with decode function
AssigneeThe Sun Lock Company Ltd.
InventorKarl Lai
Life of this patent
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Abstract
A padlock comprising a lock body, a combination mechanism to control the movement of the cam-spindle vertically, a key mechanism to control the movement of the cam-spindle rotationally, more than one clutch that is mounted in the cam-spindle which controls the vertically movement of the cam-spindle, wherein the cam-spindle is configured to control the locking and unlocking of the combination mechanism, and wherein more than one dial is mounted in the lock body, a locking bolt contacts the shackle, and the shackle has a long leg and a short leg with a bolt-receiving-cutout.
Claims10
A padlock comprising:
- a lock body,
- a shackle,
- a pair of locking bolts configured for engagement with the shackle, wherein the shackle has a long leg for engagement with one of the pair of locking bolts and a short leg for engagement with the other of the pair of the locking bolts,
- a combination mechanism to control the movement of a cam-spindle vertically, and
- a key mechanism to control the movement of the cam-spindle rotationally,
- wherein the combination mechanism comprises more than one clutch that isare mounted in the cam-spindle which controls the vertically movement of the cam-spindle,
- wherein the cam-spindle is configured to control the locking and unlocking of the combination mechanism, and
- wherein the combination mechanism comprises more than one dial are mounted in the lock body,
- wherein the cam-spindle has at least two sets of bolt-notches, one set of bolt notches controlled by the combination mechanism and the other set of bolt notches controlled by the key mechanism,
- wherein one bolt notch of the set of bolt notches controlled by the combination mechanism is configured for engagement with one of the pair of locking bolts, and the other bolt notch of the set of bolt notches controlled by the combination mechanism is configured for engagement with the other of the pair of locking bolts, and
- wherein the bolt notches for the combination mechanism are positioned substantially perpendicular on the cam-spindle to the bolt notches for the key mechanism.
8 more elements
Dependencies are inferred from the claim text.