Door release mechanism

Details Door release mechanism Door release mechanism

1974-08-30

1976-05-11

Moore, Richard E.

Closure fasteners

Bolts

Swinging

292201, E05C 312

Patent

active

039558401

ABSTRACT:
A release mechanism for doors includes a pair of pivotally mounted cams one of which is displaceable to engage and retain a tensioned door sash element while the other cam locks and holds the first cam in said engagement until influenced by either the absence or presence of electrical power to a solenoid connected to the second one of said cams to cause displacement of the second cam and thus permit displacement of the first cam and release of the tensioned door sash element.

REFERENCES:
patent: 1057608 (1913-04-01), Wurmb et al.
patent: 1312895 (1919-08-01), Derby
patent: 1417430 (1922-05-01), Tulloch et al.
patent: 1702621 (1929-02-01), Stelljes
patent: 3386761 (1968-06-01), Johnstone et al.

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