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US 8,382,166 B2Granted
High security lock for door
AssigneeAmesbury Group, Inc.
InventorsBruce Hagemeyer, Dan Raap, Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh
Life of this patent
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Abstract
A high security locking system can be used in a conventional pivot door adapted for use with a latch and deadbolt lock combination. The high security system can be a multi-point lock, received in a recess formed in a locking edge side of a door stile, cooperating with a linkage or other mechanism in a conventional deadbolt/location. The lock can be actuated with a keyed cylinder and thumb turn combination.
Claims11
A lock comprising:
- a drive adapted for movement from a first vertical position to a second vertical position;
- a locking element connected to the drive, the locking element adapted for movement from a retracted position to an extended position upon movement of the drive from the first vertical position to the second vertical position, wherein the locking element is adapted to engage a keeper when the locking element is in the extended position;
- a bar slide adapted for movement from a first horizontal position to a second horizontal position, wherein the bar slide is adapted to be actuated by a movement of a lever arm, and wherein the bar slide defines a first opening having a first backset and a second opening having a second backset, wherein each of the first opening and second opening are configured to receive a lever arm pin;
- and
- a transmission for coupling movement of the bar slide with movement of the drive, whereby the movement of the lever arm is such that a first movement of the lever arm in a first direction causes the locking element to engage with the keeper, and a second movement of the lever arm in a second direction causes the locking element to disengage from the keeper.
2 more elements
Dependencies are inferred from the claim text.