Emergency opening latch actuator for sliding door

Details Emergency opening latch actuator for sliding door Emergency opening latch actuator for sliding door

1977-11-03

1978-08-01

Kannan, Philip C.

Closure fasteners

Bolts

Hooked end

49141, 49449, 292DIG46, 2923363, E05C 1910, E05B 300, E05B 6510

Patent

active

041039459

ABSTRACT:
A sliding door with a lever operated latch incorporated in the handle is provided with an emergency opening mechanism for releasing the latch by merely pulling the handle. A portion of the handle is pivoted to hinge by squeezing or pulling action on the handle, and is connected to a conventional latch and lock mechanism by a simple adapter element, so that the latch lever need not be separately operated to open the door in an emergency. The mechanism is accessible only from the inside and external security is maintained.

REFERENCES:
patent: 2861660 (1958-11-01), Ensign
patent: 3161923 (1964-12-01), Crain
patent: 3213652 (1965-10-01), Tucker
patent: 3884514 (1975-05-01), Praska
patent: 3893261 (1975-07-01), Cribben
patent: 4068874 (1978-01-01), Fleming et al.

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