Patent ID: 6698550
Filing Date: 2004-03-02
Classification: E06C

Abstract:
A step ladder comprising:(a) a ladder element having a first end arranged to engage a ladder supporting surface and a second end; (b) an upper back leg having a first end pivotally attached proximate said second end of said ladder element and a second end defining a length, said upper back leg including portions defining at least two upper back leg apertures; (c) a lower back leg including at least two back feet arranged to engage a back leg supporting surface; said lower back leg slidably engaging said upper back leg and including portions defining at least two lower back leg apertures, said lower back leg apertures being arranged to align with a plurality of said upper back leg apertures when said lower back leg is in sliding engagement with said upper back leg; and (d) at least two interconnected pins pivotally attached to one of said upper back leg and said lower back leg, said pins pivotable between a first position engaging aligned apertures of said upper back leg and said lower back leg and a second position free of engagement with said apertures of at least one of said upper back leg and said lower back leg.