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US 4,227,386 AGranted
Lock
OwnerMattie Crockettinventor
Life of this patent
Estimating the term…
Abstract
A safety or "dead-bolt" lock includes a lockably releasable sliding bolt assembly of a first magnetic polarity. The keeper element, which is adapted to be mounted on to a jamb is of a second or opposite magnetic polarity to magnetically attract the bolt. A key lock assembly is used to release the sliding bar from movement. A cover is slidably movable over the entire lock assembly to prevent unauthorized dislodgement.
Claims6
A dead-bolt lock, comprising:
- (a) a sliding bar of a first magnetic polarity,
- (b) a jamb mounted keeper of a second magnetic polarity,
- (c) means for moving the sliding bar into and out of the keeper,
- (d) locking means for locking the moving means, and
- (e) a cover translatable to enshroud the sliding bar and the keeper.
2 more elements
Dependencies are inferred from the claim text.