Locking device for a door lock

Details Locking device for a door lock Locking device for a door lock

1987-02-18

1987-12-29

Gall, Lloyd A.

Locks

Special application

For control and machine elements

70416, E05B 1308

Patent

active

047152001

ABSTRACT:
A locking device to be usable in conjunction with a deadlock type of locking apparatus mounted in conjunction with a door. The locking device of this invention is to be attached in a fixed manner to the handle of the deadlock locking apparatus with there being an elongated bar section that is to abut against the conventional doorknob of the door. Any unauthorized turning of the deadlock handle will be prevented since a deadlock handle is constrained due to the elongated bar portion abutting against the doorknob. The locking device of this invention includes a bracket section which is to be movable to accommodate to different positions of deadlock handles.

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patent: 3927544 (1975-12-01), Klein
patent: 4657293 (1987-04-01), Bell

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