Exit device with lock down mechanism

Details Exit device with lock down mechanism Exit device with lock down mechanism

1980-10-16

1983-05-24

Moore, Richard E.

Closure fasteners

Bolts

Emergency operating means

2923363, E05C 1502

Patent

active

043847382

ABSTRACT:
A lock-down mechanism for use with an exit door wherein an electromagnet on the door attracts an armature on the push rail when the latter is pushed to unlatch the door, the door being held unlatched as long as the electromagnet is energized.

REFERENCES:
patent: 816792 (1906-04-01), Green et al.
patent: 1377061 (1921-05-01), Deeg
patent: 2466481 (1949-04-01), Royal
patent: 3663047 (1972-05-01), Zawadyki
patent: 3722938 (1973-03-01), Bauer et al.
patent: 3877262 (1975-04-01), Williams

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