Secur a door police lock

Details Secur a door police lock Secur a door police lock

1990-02-05

1991-04-30

Smith, Gary L.

Locks

Special application

For closures

70 71, 292259, E05B 6500

Patent

active

050107470

ABSTRACT:
A door locking mechanism for a door which is mounted on the inside of a door which can be hung to open either inwardly or outwardly. The mechanism consists of a lever arm pivotally mounted connected at its ends to extended members which at their opposite ends are connected to lock bolts. The frame supporting the door is equipped with members to receive the bolts when the door is locked. The outside of the door is provided with a lock to move the bolts out or in to lock or unlock the door. The inside of the door is provided with a knob to effect the movement of the bolts.

REFERENCES:
patent: 588237 (1897-08-01), Parker
patent: 594759 (1897-11-01), Schnurr
patent: 844456 (1907-02-01), Mendel
patent: 977184 (1910-11-01), Fuchs
patent: 981843 (1911-01-01), Davis
patent: 1274181 (1918-07-01), Meyers
patent: 3527068 (1970-09-01), Gervis et al.
patent: 3792885 (1974-02-01), Giardina et al.
patent: 3821884 (1974-07-01), Walsh
patent: 4547006 (1985-10-01), Castanier
patent: 4796445 (1989-01-01), Norden, Jr.

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