Locks – Operating mechanism – Using a powered device
Patent
1996-07-16
1998-07-21
Barrett, Suzanne Dino
Locks
Operating mechanism
Using a powered device
70277, 70283, E05B 4700
Patent
active
057821186
ABSTRACT:
A door lock, preferably operable both by a mechanical key with a key cylinder and by an electronic signal and having inside and outside handles mounted on inside and outside hollow spindles, for mounting on a door having an inside face and an outside face, has a cylindrical lock chassis with a provision for retracting a latch bolt in response to rotation of either of the hollow spindles; a member for selectively locking the outside spindle against rotation; a reversible electric motor mounted coaxially within the inside spindle, the motor being secured against rotation but free to slide axially against resistance provided by a biasing member, and having a motor shaft extending through the cylindrical lock chassis to operably engage the member for locking the outside spindle; a power supply for the motor; and a mechanism for selectively moving the member between locked and unlocked positions.
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Chamberlain L. C. Derek
Hensley Frederick M.
Barrett Suzanne Dino
Minns Michael H.
Palermo Robert F.
Schlage Lock Company
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