Binder device releasably engaging aperture or notch of sheet – Depository – Face member with back member
Patent
1994-01-27
1995-05-23
Fridie, Willmon
Binder device releasably engaging aperture or notch of sheet
Depository
Face member with back member
402 57, 402 73, 281 211, 281 271, 281 37, B42F 1300
Patent
active
054175100
ABSTRACT:
A book binding comprises a hard cover and a plurality of wire elements connected to the hard cover. The hard cover includes a front side, a back side, and a backbone bridging the front and back sides. The back side includes a plurality of pairs of apertures located adjacent and generally parallel to the backbone. The back side further includes a hinge spaced slightly away from the backbone and extending from a top edge to a bottom edge of the back side. The hinge is positioned between the plurality of pairs of apertures such that one aperture in each of the pairs of apertures is located on one side of the hinge and the other aperture in each of the pairs of apertures is located on the other side of the hinge. Each of the wire elements engages an associated pair of the plurality of pairs of apertures such that an arc-like section of each of the wire elements is located adjacent an outer surface of the back side.
REFERENCES:
patent: 4711469 (1987-12-01), Bogare
patent: 4811973 (1989-03-01), Kumar-Misir
patent: 4907905 (1990-03-01), Fournier
Fridie Willmon
R. R. Donnelley & Sons Company
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