Key-actuated security bar for a door

Details Key-actuated security bar for a door Key-actuated security bar for a door

1997-08-19

1998-08-11

Barrett, Suzanne Dino

Locks

Special application

For closures

70 94, 292259, E05B 6506

Patent

active

057911738

ABSTRACT:
An improved security system for a door that opens inwardly or outwardly, that includes a bar having on one side of the door jamb a U-shaped bracket for locking the bar across the door, preventing its movement inwardly, a double hinge joint on the opposite side, securing the bar to the door jamb, and a key-actuated locking mechanism that includes an actuating fork that raises the security bar at one end away from the U-shaped locking bracket, thereby allowing the door to be opened, and in a second position, disengaging the lever arm from the security bar, causing the security bar to be firmly engaged in the U-shaped lock on the door jamb.

REFERENCES:
patent: 1695686 (1928-12-01), Hess
patent: 1707694 (1929-04-01), Torrence
patent: 1988080 (1935-01-01), Kemp et al.
patent: 2163206 (1939-06-01), Lopez
patent: 2373783 (1945-04-01), Schlifer
patent: 2421275 (1947-05-01), Lopez
patent: 3527068 (1970-09-01), Gervis et al.
patent: 3971238 (1976-07-01), Walker
patent: 4462625 (1984-07-01), Barnhill
patent: 4601503 (1986-07-01), Wicks, Sr.
patent: 5010747 (1991-04-01), Norden, Jr.

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