Collapsible ladder assembly

Details Collapsible ladder assembly Collapsible ladder assembly

1988-06-27

1989-08-01

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Flexible

182 70, E04C 156

Patent

active

048526886

ABSTRACT:
A collapsible ladder assembly for emergency exit from a building is secured to a window opening by a pair of anchoring hooks and includes two pairs of spaced-apart flexible rail members which support both a generally rectangular top step and a generally rectangular lower step at the four corners thereof. A plurality of intermediate rungs are supported by one of the pairs of rail members away from the building to provide for easier foot placement of the person descending the ladder. The top step defines a cavity for receipt of the rungs and the lower step in a stored condition.

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patent: 3847246 (1974-11-01), Banner
patent: 4079811 (1978-03-01), Driskell
patent: 4098372 (1978-07-01), Luckey
patent: 4127184 (1978-11-01), Strohmeyer
patent: 4260039 (1981-04-01), Arato et al.
patent: 4434871 (1984-03-01), Niedworok
patent: 4445589 (1984-05-01), Longenecker

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