Exterior operating arrangement for emergency exit doors with del

Details Exterior operating arrangement for emergency exit doors with del Exterior operating arrangement for emergency exit doors with del

1980-06-16

1982-08-17

Moore, Richard E.

Closure fasteners

Bolts

Swinging

E05C 1502

Patent

active

043446477

ABSTRACT:
An emergency exit door lock equipped with a delay is provided with exterior unlatching and unlocking arrangements which permit a door normally locked with respect to the outside to have a bolt which is undogged and retracted from the outside. Upon undogging the bolt from the outside, the delay is deactivated by de-energizing a solenoid which controls application of the delay.

REFERENCES:
patent: 184297 (1876-11-01), Potter
patent: 1989419 (1935-01-01), Hill
patent: 3122388 (1964-02-01), Powers

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