Ladder improvement

Details Ladder improvement Ladder improvement

1991-01-25

1992-03-10

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

2481888, E06C 744

Patent

active

050943200

ABSTRACT:
A ladder leveling device for a ladder having a pair of side rails with connecting rungs is provided and consists of a pair of U-shaped channel members which are each slideably retained to each side rail. A securing mechanism locks each channel member in its adjustable position to enable the ladder to stand upright upon an uneven/inclined surface.

REFERENCES:
patent: 1346831 (1920-07-01), Lehmann
patent: 1419748 (1922-06-01), Miller
patent: 2115395 (1938-04-01), Marvin
patent: 2249304 (1941-07-01), Wilson
patent: 4852689 (1989-08-01), Erion

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