Ladder adjustment apparatus

Details Ladder adjustment apparatus Ladder adjustment apparatus

1990-02-23

1991-01-15

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Supporting surface compensating means

182111, E06C 744

Patent

active

049846558

ABSTRACT:
A ladder adjustment apparatus (10) which is designed to be secured to the rungs (101) of a ladder (100) whereby the apparatus (10) may be laterally shifted on the rungs (101) to position the apparatus (10) adjacent either leg (102) of the ladder without the need for physically detaching the apparatus (10) from the ladder (100).

REFERENCES:
patent: 1033685 (1912-07-01), Eskew
patent: 1589743 (1926-06-01), Clary
patent: 1609257 (1926-11-01), Lazear
patent: 1705000 (1929-03-01), Brandt
patent: 2969126 (1961-01-01), Gardner
patent: 3165170 (1965-01-01), Blaney
patent: 3554321 (1971-01-01), Stedman
patent: 4143742 (1979-03-01), Fernandez
patent: 4209078 (1980-06-01), Gerber
patent: 4607726 (1986-08-01), Davis et al.
patent: 4671383 (1987-06-01), Huang

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