Walking ladder

Details Walking ladder Walking ladder

1986-05-08

1987-03-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Horizontal traversing - actuation, control, or response

Occupant actuation or control

182167, E06C 500

Patent

active

046468765

ABSTRACT:
A walking ladder is provided and consists of a spring loaded tripod suspended from a step ladder which converts the step ladder into a self moving support. A person standing on the step ladder can shift their weight from the ladder to the tripod and then back onto the ladder while always remaining on the ladder so as to reposition the ladder anywhere in the immediate area of the tripod.

REFERENCES:
patent: 1467245 (1923-09-01), Anlauf
patent: 1510461 (1924-10-01), Cordes
patent: 1701951 (1929-02-01), Holt
patent: 2630961 (1953-03-01), Burg
patent: 2707585 (1955-05-01), Hoey
patent: 2775488 (1956-12-01), Wingrove
patent: 2845208 (1958-07-01), Antonietti
patent: 2980200 (1961-04-01), Kibby
patent: 3447632 (1969-06-01), Boyd
patent: 3857460 (1974-12-01), Nini

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