Binder device releasably engaging aperture or notch of sheet – Pliant – deformable sheet retainer – Flaccid retainer secured by knotted – intertwined or wedge...
Patent
1988-09-13
1989-08-15
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Pliant, deformable sheet retainer
Flaccid retainer secured by knotted, intertwined or wedge...
402 68, B42F 300, B42F 1312
Patent
active
048569267
ABSTRACT:
In a sheet binder (1), which consists of a rear cover (2) and a front cover (3) connected with each other by means of a folded spline strip (4), in the area between the rear cover (2) and the front cover (3), a strap (10) is provided in the area of the fold (5), this strap being connected with the binder (1). Prongs (13, 14) extending essentially parallel to the fold (5) are punched from the rear cover (2). The prongs (13, 14) are inserted for the binding of the sheets (15) into holes (16) provided in the strap (10) and then passed with their free ends downward through further holes (17) provided spaced apart from the holes (16) in the strap (10). To simplify the insertion of the prongs (13, 14) in the strap (10), the holes (16) have open through connections (16') toward the free end of the strap ( 10).
REFERENCES:
patent: 2324004 (1943-07-01), Kriegsman
patent: 2523922 (1950-09-01), Neuschwander
patent: 2536792 (1951-01-01), Wendt
patent: 3834824 (1974-09-01), Jahn
patent: 4437781 (1984-03-01), Weihe et al.
patent: 4784507 (1988-11-01), Vetter
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