Tamperproof dead bolt device

Details Tamperproof dead bolt device Tamperproof dead bolt device

1980-03-18

1982-07-27

Wolfe, Robert L.

Closure fasteners

Bolts

Sliding

70417, E05C 104, E05B 6300

Patent

active

043414087

ABSTRACT:
A tamperproof dead bolt device secured to a door jamb is disclosed including a stationary support plate assembly provided with a slotted section for a sliding dead bolt which in the secured position projects into the plane of the arc for opening the door. The dead bolt device further includes a lock member which prevents the dead bolt from being retracted from the secured position. When the dead bolt device is installed it is secured through the door jamb and wall partition to distribute the forces of an attempted forced entry over a larger surface area.

REFERENCES:
patent: 264438 (1982-09-01), Burrill
patent: 313328 (1885-03-01), Harris
patent: 4061370 (1977-12-01), Hauber

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