Folding ladder

Details Folding ladder Folding ladder

1988-03-17

1989-04-18

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Stackable

Male and female connecting means

182163, E06C 110, E06C 1383

Patent

active

048218430

ABSTRACT:
A folding ladder primarily designed for use of roof estimators wherein said folding ladder is long enough to get to the average roof, but is yet not cumbersome to handle as are most extension ladders, and wherein the ladder hinges and folds into a flat package when not in use, with sliding side rail locking devices which also fold and hinge when not in use, but when extended which slide over the hinge positions of the ladder, and hold it in full length for use, additionally provision is made for a separate and distinct extension element having sliding side locking rail devices.

REFERENCES:
patent: 2183251 (1939-12-01), Beggs
patent: 3078953 (1963-02-01), Silen
patent: 3286789 (1966-11-01), Planchon
patent: 4718518 (1988-01-01), Brown

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