Binder with closure
OwnerAdam Sternberginventor
Life of this patent
Estimating the term…
Abstract
In a standard binder, the improvement comprising the provision of a closure connected by a hinge to one of the covers at an outside edge thereof, a ledge on the closure and having an upper surface, the surface located at a distance from the cover to which the closure is connected approximately equal to the distance between the inner faces of the two covers at the spine, whereby the covers are maintained in substantially parallel relationship to each other regardless of the amount of paper in the binder. In alternate forms of the binder, a flap is provided which is releasably secured to one of the covers. The flap may overlie or be tucked under the other cover, and the closure and ledge are so arranged that the covers are approximately parallel when the binder is closed and secured.
Claims38
A binder comprising a first cover, having an inner face and an outer face, connected to a spine by a first hinge at a first edge of said spine, a second cover, having an inner face and an outer face, connected to said spine by a second hinge at a second edge of said spine remote from and parallel to said first edge, a releasable retaining means located between the inner face of said first cover and the inner face of said second cover when said binder is in closed position and adapted to receive and retain sheets of material thereon, a closure connected to said first cover by a third hinge at an outside edge thereof, a ledge carried by said closure and having an upper surface, said upper surface located at a first distance from said third hinge substantially equal to the width of said spine, said width being greater than the total thickness of said sheets, whereby a portion of the inner face of said second cover abuts said surface and said first and second covers are substantially parallel to each other when said first cover, said second cover, and said closure are in the closed position.
A binder comprising a first cover, having an inner face and an outer face, connected to a spine by a first hinge at a first edge of said spine, a second cover, having an inner face and an outer face, connected to said spine by a second hinge at a second edge of said spine remote from and parallel to said first edge, a releasable retaining means located between the inner face of said first cover and the inner face of said second cover when said binder is in closed position and adapted to receive and retain sheets of material thereon, a closure connected to said first cover by a third hinge at an outside edge thereof, a ledge on said closure having an upper surface, said upper surface located at a first distance from said third hinge substantially equal to the width of said spine, said width being greater than the total thickness of said sheets, a flap, having an outside face and an inside face, connected to said closure by a fourth hinge which is substantially parallel to said third hinge, a part of said inside face of said flap overlying said surface, a portion of the inner face of said second cover overlying at least some of the outside face of said flap, whereby said first and second covers are substantially parallel to each other when said first cover, said second cover, and said closure are in the closed position.
Dependencies are inferred from the claim text.