Closure fasteners – Bolts – Sliding
Patent
1985-09-16
1987-06-16
Moore, Richard E.
Closure fasteners
Bolts
Sliding
292150, 292264, E05C 116
Patent
active
046732020
ABSTRACT:
A door locking device is provided for securing a door with a dead bolt having a thumb knob on the inside of the door for throwing a dead bolt into a striker plate with the door jamb. The door locking device has a support body attached to the inside of the door, a dead bolt slide slidably engaged with the support body, and a keeper attached to the door jamb with at least one keeper hole lying in a plane substantially perpendicular to the plane of the door in the closed position. The dead bolt slide provides a second dead bolt locking function by engaging the keeper while simultaneously rendering the dead bolt lock within the door unopenable with a restriction means that restricts rotation of the thumb knob from its locked position.
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