Deadbolt
AssigneeMaster Lock Company LLC
InventorWai P. Wong
Life of this patent
Estimating the term…
Abstract
A deadbolt lock assembly is disclosed. The deadbolt lock assembly includes an exterior lock mechanism and an interior lock mechanism mechanically connected through a bored hole in a door. The exterior portion of the lock assembly includes a reinforced chassis with a reinforced lock cylinder bore and an anti-rotation arm to enhance the lock's resistance to attack. The interior portion includes a thumbturn that is physically connected to the gearbox frame for robustness and includes stabilizing detents to improve the user feel. The gearbox frame and mounting bracket are connected with a single screw and spring-loaded latch for ease of assembly.
Claims23
A lock assembly, comprising:
- an exterior portion configured to be mounted on an outside of a door;
- an interior portion configured to be mounted on an inside of the door, the exterior portion and the interior portion are configured to be fastened to each other;
- and,
- a deadbolt assembly configured to be actuated by the exterior and interior portions;
- the exterior portion including:
- a chassis;
- and,
- an anti-rotation arm disposed on the chassis, the anti-rotation arm configured to abut the deadbolt assembly and configured to transfer torque from the chassis to the deadbolt assembly, thereby inhibiting compromising integrity of the lock assembly;
- wherein the exterior portion includes a baseplate and a cover, the chassis being disposed between the baseplate and the cover.
A lock assembly, comprising:
- an exterior portion configured to be mounted on an outside of a door;
- an interior portion configured to be mounted on an inside of the door, the exterior portion and the interior portion are configured to be fastened to each other;
- and,
- a deadbolt assembly configured to be actuated by the exterior and interior portions;
- the exterior portion including:
- a chassis;
- and,
- an anti-rotation arm disposed on the chassis, the anti-rotation arm configured to abut the deadbolt assembly and configured to transfer torque from the chassis to the deadbolt assembly, thereby inhibiting compromising integrity of the lock assembly;
- wherein the chassis further comprises a cylindrical boss extending from a rear side of the exterior portion and sized to be received in a door bore hole having a first size, with the anti-rotation arm extending rearward from the cylindrical boss.
A lock assembly, comprising:
- an exterior portion configured to be mounted on an outside of a door;
- an interior portion configured to be mounted on an inside of the door, the exterior portion and the interior portion are configured to be fastened to each other;
- and,
- a deadbolt assembly configured to be actuated by the exterior and interior portions;
- the exterior portion including:
- a chassis;
- and,
- an anti-rotation arm disposed on the chassis, the anti-rotation arm configured to abut the deadbolt assembly and configured to transfer torque from the chassis to the deadbolt assembly, thereby inhibiting compromising integrity of the lock assembly;
- wherein the chassis further comprises an extension extending from a rear side of the exterior portion and sized to be received in a first door bore hole having a first size, with the anti-rotation arm extending rearward from the extension;
- wherein the lock assembly further comprises a bore hole guide detachably connectable with the rear side of the exterior portion, surrounding the extension, and sized to be received in a second door bore hole having a second size larger than the first size.
Dependencies are inferred from the claim text.