Ladder level adjusting attachment

Details Ladder level adjusting attachment Ladder level adjusting attachment

1994-11-14

1996-08-06

Chotkowski, Karen J.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

182204, 2481882, E06C 700

Patent

active

055424970

ABSTRACT:
A ladder level adjusting attachment for a ladder of the type having a pair of generally parallel side rails, a plurality of hollow rungs interconnecting the side rails and a pair of shoes, each located on a bottom end of each side rail. The attachment comprising at least one but typically two independent, identical and height adjustable support assemblies. A structure is for installing the support assembly against the side rail of the ladder. Support assembly can be height adjusted independently to allow the ladder to stand in a level and stationary position, with respect to all uneven floor and ground base conditions.

REFERENCES:
patent: 979821 (1910-12-01), Brasington
patent: 1376777 (1921-05-01), O'Connor
patent: 1718891 (1929-06-01), Bratt
patent: 1733338 (1929-10-01), Enke
patent: 2408372 (1946-10-01), Chase
patent: 2936849 (1960-05-01), Larson
patent: 3554321 (1971-01-01), Stedman
patent: 5064024 (1991-11-01), Barham
patent: 5107958 (1992-04-01), Johnson
patent: 5181584 (1993-01-01), Simard
patent: 5222575 (1993-01-01), Santos
patent: 5273133 (1993-12-01), Thoucher et al.

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