Closure fasteners – Bolts – Emergency operating means
Patent
1993-10-18
1996-02-13
Lindsey, Rodney M.
Closure fasteners
Bolts
Emergency operating means
292139, 292259R, E05B 6510
Patent
active
054906962
ABSTRACT:
A door locking system for attachment to an outwardly opening door which engages the door frame and which has a panic bar movable towards the door for disengaging the locking system. The locking device includes an outer sleeve fixedly mounted to the interior surface of the door and extending over one side of the door frame. An inner sleeve is provided within the outer sleeve which is pulled outwardly to a door frame engagement position, wherein the inner sleeve extends over the other side of the door frame to prevent the door from being opened. Movement of the panic bar towards the door causes the inner sleeve to retract into the outer sleeve, thereby allowing the door to be opened. A reset system is provided for automatically resetting the lock when the door is closed.
REFERENCES:
patent: 1039734 (1912-10-01), Hannum
patent: 1800165 (1931-04-01), Waldron
patent: 2188642 (1940-01-01), Keats
patent: 2475478 (1949-07-01), Clair
patent: 3024053 (1962-03-01), Cox et al.
patent: 3724130 (1973-04-01), Bogue
patent: 3958820 (1976-05-01), Teeple
patent: 4179143 (1979-12-01), Shy
patent: 4552392 (1985-11-01), Morello
patent: 4631528 (1986-12-01), Handel et al.
patent: 4762350 (1988-08-01), Hurtado
patent: 4779910 (1988-10-01), Dameron
patent: 4785286 (1988-11-01), Martin
patent: 4796445 (1989-01-01), Norden, Jr.
patent: 4852921 (1989-08-01), Gilbert et al.
patent: 4856831 (1989-08-01), Roden, Jr.
patent: 4961330 (1990-10-01), Evans
patent: 4968070 (1990-11-01), Choi
patent: 5010747 (1991-04-01), Norden, Jr.
patent: 5139292 (1992-08-01), Beals
Fortruss, Inc.
Lindsey Rodney M.
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