Loose-leaf binder
OwnerGwang H. Rheeinventor
Life of this patent
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Abstract
A loose-leaf binder makes use of a hinged back comprising parallel hinge leaves pivotally attached to each other at adjacent edges. There is an interlock at one end consisting of resilient flanges normally interlocked in overlying relationship, but releasable by tilting one flange away from the other. Rings which extend through the holes in sheets of paper may be individually mounted in a retention track so that they can be varied as to spacing and also varied as to the number of rings made use of.
Claims13
A loose-leaf binder for sheets which are provided with a plurality of holes adjacent one edge, said binder comprising a back member on which is mounted a plurality of separable ring assemblies in spaced relationship for retention of said sheets, said back member comprising a pair of separate parallel composite hinge leaves with a pivotal connection interconnecting said hinge leaves at adjacent edges, and a releasable interlock between said hinge leaves comprising a flange on each of the leaves, said flanges being of relatively thin flat sheet material and of substantially uniform thickness, said flanges being laterally yieldable and having an overlying relationship with a shoulder on one flange and a shoulder on the other flange being in abutting engagement when the hinge leaves and ring assemblies are interlocked, at least one of said flanges having a lateral resilient displacement relative to the other whereby to disengage said shoulders and enable movement of said flanges in planes parallel to each other to effect separation of said ring assemblies for removal and replacement of said sheets.
Dependencies are inferred from the claim text.