Locks – Operating mechanism – Using a powered device
Patent
1998-11-10
2000-08-01
Barrett, Suzanne Dino
Locks
Operating mechanism
Using a powered device
70303A, E05B 4900
Patent
active
060949538
ABSTRACT:
A slidebolt lock, with slidebolt displacement forces provided by a mechanism outside the lock assembly and acting on the slidebolt, is locked by a blocking member carried by the slidebolt and normally spring biased toward a blocking and locking position. The blocking member engages the lock case and denies the bolt freedom to move in an unlocking direction. The blocking member is forced to a disengaged position by an electromechanical drive, such as a stepper motor driving a cam wheel and cam follower, or a solenoid directly or indirectly acting to force the blocking member to a position within the bolt and disengaging the blocking member from engagement with the lock casing. To simplify the solenoid in one embodiment, upon slidebolt movement toward a withdrawn, unlocked position, the blocking member forms and provides a camming structure to break any residual magnetic seal of the solenoid armature to the solenoid body.
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Barrett Suzanne Dino
Hill Rustan J.
Letson Laurence R.
Mas-Hamilton Group, Inc.
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