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US 11,454,050 B2Granted
Electronic hidden shackle padlock with key override
AssigneeMaster Lock Company LLC
InventorZachary T. Nave
Life of this patent
Estimating the term…
Abstract
Systems and apparatuses include a lock including a shackle movable between an unlocked state and a locked state, an electronically actuated blocker selectively engaged with the shackle to inhibit movement of the shackle from the locked state to the unlocked state, the blocker movable between a key override disabled position, a key override enabled position, and an electronic unlock position, and a key cylinder structured to move the shackle to the unlocked state when the blocker is in the key override enabled position.
Claims20
A lock, comprising:
- a housing;
- a keypad coupled to the housing and including a user interface;
- an actuator in communication with the keypad and movable between a first position, a second position, and a third position;
- a cam coupled to the actuator and movable therewith;
- a blocker including a cam follower in selective engagement with the cam, a cutout, and a shoulder, the blocker movable between an open position, a closed position, and an intermediate position;
- a shackle including a recess sized to receive the blocker and movable between an unlocked state and a locked state;
- and
- a key cylinder coupled to and moveable with the shackle,
- wherein the first position of the actuator includes the cam interacting with the blocker in the closed position, and the blocker engaging the recess of the shackle to maintain the shackle in the locked state,
- wherein the second position of the actuator includes the cam interacting with the blocker in the intermediate position, the key cylinder rotating the shackle, and the recess of the shackle engaging the shoulder of the blocker and moving the blocker toward the open position, and
- wherein the third position of the actuator includes the cam interacting with the blocker in the open position, the cutout positioned adjacent the shackle, and the shackle allowed to move between the locked state and the unlocked state.
8 more elements
A lock, comprising:
- a shackle movable between an unlocked state and a locked state;
- an electronically actuated blocker selectively engaged with the shackle to inhibit movement of the shackle from the locked state to the unlocked state, the blocker movable between a key override disabled position, a key override enabled position, and an electronic unlock position;
- and
- a key cylinder structured to move the shackle to the unlocked state when the blocker is in the key override enabled position.
1 more element
A method, comprising:
- moving a cam to a key override disabled position with an electronic actuator;
- biasing a blocker into engagement with the cam so that the blocker is in a closed position when the cam is in the key override disabled position;
- inhibiting movement of a shackle from a locked position to an unlocked position when the blocker is in the closed position;
- moving the cam to a key override enabled position with the electronic actuator;
- biasing the blocker into engagement with the cam so that the blocker is in an intermediate position when the cam is in the key override enabled position;
- inhibiting movement of the shackle from the locked position to the unlocked position when the blocker is in the intermediate position;
- and
- rotating the shackle with a key cylinder so the blocker is moved to an open position by the movement of the shackle when the cam is in the key override enabled position thereby allowing the shackle to move to the unlocked position.
5 more elements
Dependencies are inferred from the claim text.