Ladder apparatus

Details Ladder apparatus Ladder apparatus

1984-06-29

1986-01-21

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder and platform

Platform with ladder as support

182172, 182200, E06C 122, E06C 716

Patent

active

045652627

ABSTRACT:
A ladder apparatus having an elongated ladder assembly, a pair of pivotally mounted supporting legs, braces positionable to interconnect the legs and the ladder assembly to retain the legs in stable supporting relation to the ladder assembly, a collapsible platform borne by the ladder assembly and an adjustable leveling device mounted on the ladder assembly for ground engagement to support the ladder assembly on uneven surfaces. An auxiliary support assembly adapted for attachment to a ladder assembly having the foregoing elements.

REFERENCES:
patent: 540643 (1895-06-01), Davol
patent: 2046516 (1936-07-01), Johnson
patent: 2104987 (1938-01-01), Harding
patent: 2186119 (1940-01-01), Moen
patent: 2205935 (1940-06-01), Stenroos
patent: 2639853 (1953-05-01), Pierce
patent: 2650014 (1953-08-01), Harrison
patent: 2997127 (1961-08-01), Wojtowicz
patent: 3043397 (1962-07-01), Tillotson
patent: 3165369 (1965-01-01), Machen
patent: 3269486 (1966-08-01), Machen
patent: 3474883 (1969-10-01), Weis
patent: 3933221 (1976-01-01), Sorenson
patent: 4175641 (1979-11-01), Reyes
patent: 4249637 (1981-02-01), Glasgow

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