Adjustable step ladder

Details Adjustable step ladder Adjustable step ladder

1998-11-16

2000-06-13

Stodola, Daniel P.

Fire escape, ladder, or scaffold

Ladder

Slidable nested single rung units

182204, E06C 100, E06C 700

Patent

active

060737263

ABSTRACT:
An adjustable step ladder having four fixed side rails which are wider apart at the bottom than at the top. The step ladder has a conventional series of steps along one side. At the bottom of each of the legs an adjustable leg is located so that the ladder can be positioned in a horizontal manner no matter how irregular the terrain upon which it stands. One or more adjustable steps are affixable to the extending legs and the adjustable steps are telescoping so that they may be made wider nearer the bottom. The result is a completely adjustable ladder which is stable because it is wider at the bottom and which may have steps which are level even though the length of the legs are uneven.

REFERENCES:
patent: 4082162 (1978-04-01), Diez
patent: 4671383 (1987-06-01), Huang
patent: 5305851 (1994-04-01), Katson et al.

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