Patent ID: 6200058
Filing Date: 2001-03-13
Classification: B42F

Abstract:
An improved paper lifter co-acting with a ring binder having binder covers with a spline therebetween, a plurality of split rings emerging from a protective cover over a ring mechanism mounted on the binder, the paper lifter slidably and pivotally connected to the rings via apertures receiving the rings, the apertures having inside rims which form slidable and pivotal contact points with the rings, the contact points delineating a lifter pivot axis serving as a fulcrum for lifter moment arms, one such moment arm being an effort arm extending crosswise from the lifter pivot axis outward over the binder cover to an outer edge of the lifter and to outer contact points with the cover, the improvements comprising:a multiplicity of interconnected load arms of mixed lengths, the load arms forming a plurality of sets of like load arms, andthe load arms of each set extending from the pivot axis inward and across the lifter toward corresponding sets of inner edges of the lifter, the inner edges adapted to abut different sets of predetermined binder contact surfaces; wherebythe sets of load arms slidably reaching and pivotally leveraging against the different sets of binder contacts surfaces.