Platform stepladder

Details Platform stepladder Platform stepladder

1980-05-01

1981-10-20

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With handrail or guard for ladder

182104, 182118, E06C 718, E06C 1383

Patent

active

042955440

ABSTRACT:
A stepladder comprises a pair of front legs pivotally attached to a forward platform and a pair of rear legs pivotally attached to a rear platform. The front platform and rear platform are hingedly attached to one another for movement between a coplanar position and a folded position. The front legs are releasably locked in a position perpendicular to the front platform. The rear legs are releasably locked to said rear platform at an angle of about 110.degree.. A support member is pivotally attached to the front legs to extend perpendicularly upwardly from the front platform.

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patent: 2467800 (1949-04-01), Backlin
patent: 2507396 (1950-05-01), Boggs
patent: 2533391 (1950-12-01), Miller
patent: 2640641 (1953-06-01), Tepper
patent: 3112010 (1963-11-01), Mihalik
patent: 3500957 (1970-03-01), Stern

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