Adjustable folding ladder

Details Adjustable folding ladder Adjustable folding ladder

1987-10-29

1989-06-27

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Convertible

Ladder

182 46, 182 27, 182163, 182228, 16351, 403 97, E06C 128, E06C 708

Patent

active

048420980

ABSTRACT:
The invention is an adjustable folding ladder that can be easily altered in its length and shape to adjust to the proper working height and angles for the user. With the fiber glass nylon hinges, the ladder is insulated to prevent the user from electrical shocks in the event the ladder comes into contact with electrical wiring.

REFERENCES:
patent: 1894489 (1933-01-01), Hirose
patent: 3143185 (1964-08-01), Wenger
patent: 3554318 (1971-01-01), Knight
patent: 4566150 (1986-01-01), Boothe
patent: 4666327 (1987-05-01), Su
patent: 4666328 (1987-05-01), Ryu

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