Fire escape – ladder – or scaffold – Ladder – Supporting surface compensating means
Patent
1994-11-21
1996-09-03
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Ladder
Supporting surface compensating means
182111, 182172, E06C 744
Patent
active
055515290
ABSTRACT:
A device for stabilizing an aluminum or fiberglass type ladder on a level or uneven surface comprises a pair of frames that attach to either side of the ladder by means of rods inserted through the rungs of the ladder. The rods improve the structural integrity of the ladder by preventing twisting. Legs that slide within the frames may be independently adjusted to the desired height. Feet attached to the legs swivel to any angle, maximizing contact with the surface, even when the ladder is being raised or lowered. The feet are equipped with hard rubber cleats for use on almost any terrain. Electrically non-conductive bushings isolate the ladder from the ground, minimizing the possibility of electrical shock.
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