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US 2020/0270918 A1Published application
Key override for electromechanical multi-point latching device
AssigneeSargent Manufacturing Company
InventorsVictor Bogdanov, Liza Alcala Escoba
Life of this patent
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Abstract
A multi-point latching device may include a mortise lock and one or more remote latches which are operable with a handle. The mortise lock may include a handle lock which selectively locks and unlocks the handle is independently controllable by an actuator and by a lock cylinder. The lock cylinder may be used to unlock the handle during power failure events where the mortise lock is put into a fail secure state, such that the mortise lock maintains normal functionality as a manual device.
Claims20
A latching device comprising:
- a chassis;
- a latch bolt configured to move between a latch extended position and a latch retracted position;
- a handle lock configured to selectively lock a handle in a locked position and unlock a handle in an unlocked position;
- an electromechanical actuator configured to move the handle lock between the locked and unlocked position;
- and
- a lock cylinder configured to receive a key, wherein the lock cylinder is further configured to rotate, wherein when the lock cylinder is rotated in a first direction the latch bolt is moved from the latch extended position to the latch retracted position, and the handle lock is moved from the locked position to the unlocked position.
3 more elements
A method of operating a multi-point latching device, the method comprising:
- moving a handle lock between a locked position and an unlocked position with an electromechanical actuator;
- rotating a lock cylinder in a first direction to move a latch bolt from a latch extended position to a latch retracted position;
- and
- rotating the lock cylinder in the first direction to move the handle lock from a locked position to an unlocked position.
1 more element
Dependencies are inferred from the claim text.