Closure fasteners – Bolt guards
Patent
1992-06-29
1993-06-08
Moore, Richard E.
Closure fasteners
Bolt guards
292264, E05C 1754, E05C 1736
Patent
active
052172708
ABSTRACT:
Door Guards are shielded from outside access with hand tools while in the open guarded position. The shields close off the opening space between the door and the jam and can be shaped to provide no leverage positions or grasping surfaces which can be used for destruction and release of the guard or opening of the door.
REFERENCES:
patent: 870848 (1907-11-01), Ross
patent: 2244361 (1941-06-01), Hall
patent: 2798753 (1957-07-01), Wade
patent: 3271063 (1966-09-01), Garrett
patent: 4725084 (1988-02-01), Catricola
Deep Seven Company
Moore Richard E.
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