Safety door latch

Details Safety door latch Safety door latch

1987-08-28

1988-12-13

Gall, Lloyd A.

Closure fasteners

Extension link

Chain

292262, 292DIG65, E05C 1736

Patent

active

047905816

ABSTRACT:
A safety door latch, which can be simply and quickly disengaged in the event of an emergency, has an elongated keeper plate, which is secured to the inside of the stile of a door in proximity to the edge of the stile and substantially perpendicular thereto. An elongated slide, which is received by and releasably retained within the keeper plate, has an elongated slot therein for releasably securing a chain thereto. The proximal end of the slide is positioned within the keeper plate near the edge of the stile, and the distal end of the slide, which terminates in a clasp, is positioned within the keeper plate away from the edge of the stile. A chain is anchored at one end thereof to the striker jamb of the door and has a pin secured to the other end thereof for insertion into the slot and releasable retainment therein.

REFERENCES:
patent: 1329723 (1920-02-01), Muennich
patent: 3087751 (1963-04-01), Nisenbaum et al.
patent: 3802726 (1974-04-01), Galbreath et al.
patent: 4296957 (1981-10-01), Belles
patent: 4472143 (1984-09-01), Bennett et al.

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