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US 4,044,579 AGranted
Protection means for manually operated dead bolt lock
OwnerJohn Paul Le Belinventor
Life of this patent
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Abstract
An enclosure, for housing a manually operated lock, comprising a wall which may be mounted on either the lock or a door to surround the lock and, if necessary, its striker plate. A cover is pivotally mounted on the wall and provided with a key-actuated lock to prevent unauthorized operation of the manually operated lock.
Claims2
Apparatus for limiting access to a manually operable lock mountable on a door having a jamb upon which a striker element is mounted comprising
- a housing adapted to surround such a lock and its striker on all sides thereof except on the side thereof against a door comprising
- wall means arranged to extend substantially perpendicularly from a door and its adjacent jamb to an outer edge further from the door than the furthermost extremity of a lock and striker therefrom,
- cover means moveably mounted on at least one portion of said outer edge and so formed as to substantially fill the area within the boundaries formed by said outer edge when moved into position thereagainst,
- means for prohibiting unauthorized movement of said cover means, and
- means within housing for receiving the means which fasten a manufally operable lock to a door so that the lock fastening means also fix said housing to the door.
2 more elements
Dependencies are inferred from the claim text.