Abstract: A ring binder for retaining hole-punched pages comprises a housing, a pair of pivotable hinge plates received in the housing, and at least one pair of half ring members fixed to the hinge plates and moved between a closed position and an open position. Each of the half ring members comprises an anchoring portion fixed to a corresponding hinge plate, a transverse arm portion connected to the anchoring portion and extending outwardly in a transverse direction, an oblique arm portion connected to the transverse arm portion and extending obliquely and upwardly, and a curved portion connected to the oblique arm portion and extending upwardly and inwardly. In the closed position, upper ends of the curved portions of the pair of half ring members abut against each other in a face to face manner, and the opposite curved portions form an upwardly directed arc.

Abstract: An improved pocket-sized book capable of one-handed manipulation. The book has informational pages among which a user may navigate by using only the hand holding the book. The book has finger slots for receiving the fingers of a user and a thumb restraint for securing the thumb and thumb mass to prevent both from interfering with either the turning of the pages or the user's view of the information printed thereon. By placing his or her finger on one of the tabs and providing an upward rotational force on the book, a user is able to open the book to the desired section and view the information printed on the pages therein. A guard attached to the side of the book blocks the lateral movement of the pages so that the pages do not become askew.

Abstract: The present invention relates to a ring binder mechanism for binding the sheets of loose leaves. The mechanism comprises an elongated spring plate that extends longitudinally and, in profile, has a shallow U-shaped configuration and opposite edges which extend substantially toward each other; two parallel elongate hinge plates supported by said spring plate for pivotal toggle motion relative to the spring plate about a central hinge line, which are mounted in parallel and retained by the opposite edges of the spring plate; and a plurality of rings for clasping said sheets of loose leaves. Each of the rings comprises a pair of half ring elements of circular cross-section which are mounted on said hinge plates, with one half ring element of each pair being attached to one of the hinge plates and the other half ring element of the pair attached to the other hinge plate, with the two half ring elements of each pair in substantial alignment.

Abstract: Ring binder mechanism with special pronged fasteners secured thereto for fastening it to a binder, the special fastener per se, and a method of making the fasteners involving sheet metal stamping.

Abstract: A notebook device includes an intermediate connection member integrally coupled between a top and a bottom cover sheet members with folding lines. The intermediate connection member includes one or more bars and one or more straps coupled between the top and the bottom cover sheet members. The straps include a length greater than that of the bars, to form one or more curved or convex binder members between the top and the bottom cover sheet members. One or more sheet members may be attached to the intermediate connection member and retained between the top and the bottom cover sheet members with the binder member.

Abstract: A binder, notebook or portfolio including a body having a front cover and a rear cover pivotally joined together and a retaining mechanism located on an outer surface of the body. The retaining mechanism includes a pair of panels coupled to the body, the panels being releasably attachable together. In another embodiment, the invention is a binder, notebook or portfolio including a body having a front cover and a rear cover pivotally joined together and a retaining mechanism located on an outer surface the body. The retaining mechanism includes a pair of panels pivotally coupled to the body such that loose components can be located between the panels and the outer surface.

Abstract: A binder for releasably retaining loose-leaves. The binder has a front cover that lies flatly beneath its back cover when the binder is open 360 degrees. The rings of the binder can rotate around an edge of the flatly-folded cover to enable loose-leaves to lie flat above and below the cover. The binder also has a skeleton with a minimal cross-section spine which may be partially or completely embedded in a cover and rotates in relation to parallel front and back covers when the binder is open 360 degrees. The front cover, middle cover and back cover are connected in a way so that they do not interfere with the rotation of the rings. Mechanisms to open and close the rings of the skeleton to allow addition or removal of loose-leafs, and ring shapes to optimize or stabilize the capacity of the binder during operation are also disclosed.