Fire escape – ladder – or scaffold – Wall- or floor-attached – Retractable or collapsible beneath floor – track-mounted
Patent
1988-09-06
1989-08-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Retractable or collapsible beneath floor, track-mounted
182 92, B60R 302, E06C 504
Patent
active
048608548
ABSTRACT:
A ladder assembly, primarily for use on vehicles having compartments inconveniently displaced from the ground, has a ladder slidably attached to a storage portion between a retracted storage position and a substantially vertical, operative position, wherein the ladder is reachably displaced above the ground in the operative position. The storage portion is designed to retractably and securely store the ladder when not in use and to prevent disengagement of the ladder from the storage portion when the ladder is in the operative position. The ladder assembly further includes a bracing portion which prevents swinging movement of the ladder, in the operative position, towards the storage portion.
REFERENCES:
patent: 2544799 (1951-03-01), McCann
patent: 2642217 (1953-06-01), Jennings
patent: 2678831 (1954-05-01), Fisher
patent: 2809849 (1957-10-01), Benne
patent: 3008533 (1961-11-01), Haberle
patent: 3406984 (1968-10-01), Kilbey
patent: 3826337 (1974-07-01), Liptak
patent: 4093257 (1978-06-01), Tarvin
patent: 4139078 (1979-02-01), Keller
patent: 4140327 (1979-02-01), Hackney, III
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