Quick release latch mechanism

Details Quick release latch mechanism Quick release latch mechanism

1989-09-18

1991-06-11

Moore, Richard E.

Closure fasteners

Bolts

Multiple

49 56, 292252, E05C 114

Patent

active

050226908

ABSTRACT:
An emergency release latch for releasibly locking a protective closure, such as a window grill, in closed position over an opening in a building structure to prevent intruders from entering the structure through the opening and yet permit escape of persons from the structure through the opening in the event of a fire or other emergency. The latch is relativey immune to improper installation and tampering, releases automatically in response to a fire in the immediate vicinity of the escape opening and in response to breaking of the latch actuator, is reliable in operation over long periods of time without servicing, is easily releasible by young, handicapped, and elderly persons, and is secure against forced entry when engaged.

REFERENCES:
patent: 1472242 (1923-10-01), Covi
patent: 3764172 (1973-10-01), Standke
patent: 4111477 (1978-09-01), Rigali
patent: 4263747 (1981-04-01), Coltrin et al.
patent: 4647090 (1987-03-01), Jones
patent: 4856229 (1989-08-01), Tserng

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