Ladder leg extension apparatus

Details Ladder leg extension apparatus Ladder leg extension apparatus

1993-07-30

1994-05-03

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

182111, E06C 744

Patent

active

053079000

ABSTRACT:
A ladder extension leg apparatus is provided, wherein at least one of the first and second ladder legs includes a leg sleeve receiving the ladder leg to permit telescoping reception of the ladder leg to impart unequal effective length to the first and second legs to accommodate various uneven support heights to the ladder structure.

REFERENCES:
patent: 294199 (1884-02-01), Cloyes
patent: 970425 (1910-09-01), Curran
patent: 1672596 (1928-06-01), Zerk
patent: 3165170 (1965-01-01), Blaney
patent: 4671383 (1987-06-01), Huang
patent: 5012895 (1991-05-01), Santos

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