Fire escape – ladder – or scaffold – Convertible – Ladder
Patent
1989-06-26
1990-02-20
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Convertible
Ladder
182 97, 49 56, E06C 910, E06B 368
Patent
active
049018175
ABSTRACT:
An explosive release window grille system for the window of a house or building. It has a window grille formed from a plurality of laterally spaced vertical bars that are rigidly secured in a grid-like structure by a plurality of horizontal bars. The bottom ends of the vertical bars have an eyelet loop formed in them and a bottom horizontal bar passes therethrough and functions as a shaft about which the window grille can pivot outwardly and downwardly. The opposite ends of the bottom horizontal bracket are secured to the outer wall surface by mounting bracket assemblies. The top horizontal bar has its opposite ends secured to the front wall surface by explosive release bracket assemblies. Each of these assemblies include exploding bolts having an explosive charge mounted in their shank. The bolts are inserted through the wall from the inner surface and their tips are captured by the brackets mounted on the outer surface of the wall. A remotely mounted control panel is electrically connected to the exploding bolts and they are detonated by an electrical impulse sent through the conductor wire. Once the bolts have been detonated, the window grille is pivoted outwardly and downwardly so that it can function as a ladder.
REFERENCES:
patent: 1629541 (1927-05-01), Scholer
patent: 3670846 (1972-06-01), Jones
patent: 3694003 (1972-04-01), Radke
patent: 3946833 (1976-03-01), Riehlmann
patent: 4057935 (1977-06-01), Rohrberg
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patent: 4263747 (1981-11-01), Coltrin
patent: 4476957 (1984-10-01), Ory
patent: 4679365 (1987-04-01), Herring
patent: 4685316 (1987-03-01), Hicks et al.
Baker David L.
Logan II Charles C.
Machado Reinaldo P.
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