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US 8,516,863 B2Granted
High security lock
AssigneeLock II, LLC
InventorsJ. Clayton Miller, Donald P. Cooke, Jr., Michael P. Harvey
Life of this patent
Estimating the term…
Abstract
A high security lock includes a lock bolt movable between extended and retracted positions, a bolt retraction gear coupled to the lock bolt, and a manually-driven gear train. When a controller verifies that user-input information is correct for unlocking the lock, the bolt retraction gear and manually-driven gear train are operatively coupled such that the gear train can drive the lock bolt from the extended position to the retracted position.
Claims23
A locking mechanism comprising:
- a lock bolt movable between extended and retracted positions;
- a bolt retraction gear operatively coupled to the lock bolt, the bolt retraction gear movable between engagement and disengagement positions;
- a manually-driven gear train including a first gear and a second gear, the second gear engaged with the bolt retraction gear in the engagement position;
- a user input device adapted to receive user input information;
- a controller adapted to store authorization information and verify user input information;
- and
- an actuator having a rotatable output element, the rotatable output element blocking movement of the bolt retraction gear and thereby preventing rotation of the second gear from the disengagement position to the engagement position until the controller verifies that the user input information matches the stored authorization information.
4 more elements
A locking mechanism comprising:
- a lock casing having a front surface and a spindle sleeve extending inwardly from the front surface;
- a lock bolt disposed at least partially within the lock casing and movable between extended and retracted positions;
- a manually-driven gear adapted to be operatively coupled to the lock bolt, the gear including a spindle shaft extending through the spindle sleeve and outside the lock casing;
- a controller including a circuit board having operational circuits controlling the coupling of the manually-driven gear to the lock bolt;
- and
- a circuit breaker device adjacent to the spindle sleeve and wired into the operational circuits of the controller, wherein drilling through the spindle sleeve will break the circuit breaker device and render the operational circuits of the locking mechanism inoperative.
3 more elements
A locking mechanism comprising:
- a lock casing having at least one mounting bolt disposed in a bolt receptacle;
- a lock bolt disposed at least partially within the lock casing, the lock bolt movable between extended and retracted positions;
- and
- a blocking member movable between a blocking position over the mounting bolt in the bolt receptacle and a non-blocking position that is not over the mounting bolt, the blocking member operatively connected to the lock bolt such that the lock bolt drives the blocking member from the blocking position to the non-blocking position as the lock bolt moves from the extended position to the retracted position.
1 more element
A locking mechanism comprising:
- a lock bolt movable between extended and retracted positions;
- a bolt retraction member operatively coupled to the lock bolt and movable between engagement and disengagement positions;
- a manually-driven gear adapted to engage the bolt retraction member in the engagement position to allow a user to manually drive the lock bolt between the extended and retracted positions;
- a user input device adapted to receive user input information;
- a controller adapted to store authorization information and verify user input information;
- and
- an actuating assembly including an electric actuator operatively coupled to an output element, the output element having a projecting portion that enables movement of the bolt retraction member towards the engagement position when the controller verifies that the user input information matches the stored authorization information and, upon verification, energizes the electric actuator to rotate the output element;
- wherein the bolt retraction member is biased toward the projecting portion and the projecting portion engages the bolt retraction member and controls movement of the bolt retraction member between the engagement and disengagement positions.
5 more elements
A method of operating a lock including a user input device, a manually-driven gear, a bolt retraction member, a lock bolt adapted to engage with the bolt retraction member, an electric actuator with a rotatable output element, and a controller, the method comprising:
- recording user input information from the user input device;
- verifying that the user input information matches authorization information stored in the controller;
- energizing the electric actuator to rotate the output element;
- biasing the bolt retraction member toward a projecting portion of the output element;
- engaging the bolt retraction member with the projecting portion of the output element;
- controlling the movement of the bolt retraction member with the projecting portion such that the bolt retraction member moves from a disengagement position to an engagement position;
- and
- driving the lock bolt to a retracted position by manually driving the gear and the bolt retraction member.
5 more elements
Dependencies are inferred from the claim text.