Fire escape – ladder – or scaffold – Chute or escape tower for personnel
Patent
1990-03-05
1991-03-05
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Chute or escape tower for personnel
272 6, A62B 102
Patent
active
049970607
ABSTRACT:
Apparatus for lowering a passenger-carrying gondola from a high-rise building includes a vertical shaft or chute having a vent opening at its upper end, a vent opening at its lower end, and an air motor at its lower end suitable for either delivering air into or removing air from the chute. A passenger-carrying gondola is mounted in the chute such that as it descends under the influence of gravity, it compresses the air beneath the gondola to a pressure depending upon the position of the lower vent. If the lower vent is totally closed, the gondola creates an air cushion which can be controlled to slowly lower the gondola. The descent of the gondola can be retarded by closing the upper vent to create a vacuum above the gondola. When the gondola is descending from a relatively high-rise position, the air motor can be activated to remove the air cushion beneath the gondola so that it descends at a rate greater than a free-fall. As it approaches the bottom of the chute, the lower vent is closed and the motor de-energized so that the gondola gradually settles on an air cushion. The motor can be reversed to introduce air beneath the gondola to raise it in the shaft.
REFERENCES:
patent: 817381 (1906-04-01), Matson
patent: 2229201 (1941-01-01), Williford et al.
patent: 3497159 (1970-02-01), Lancsa
patent: 4037685 (1977-07-01), Talucci
patent: 4122934 (1978-10-01), Nieto de Moreno
patent: 4350224 (1982-09-01), Jochum et al.
patent: 4372423 (1983-02-01), Pelley
patent: 4487410 (1984-12-01), Sassak
patent: 4545574 (1985-10-01), Sassak
patent: 4580659 (1986-04-01), Baker
Chandler Charles W.
Machado Reinaldo P.
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