Binder device releasably engaging aperture or notch of sheet – Pliant – deformable sheet retainer – Flaccid retainer secured by knotted – intertwined or wedge...
Patent
1989-03-08
1990-07-10
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 1310
Patent
active
049403524
ABSTRACT:
A binding folder is provided which includes a foldable plastic cover having a bottom part for anchoring fastening strips which extend through perforations in paper sheets to be held. The top part of the cover forms a counterholder with two pairs of slots for respective ends of the fastening strips. The slots are spaced a predetermined distance from one another and are configured to permit sliding movement of the fastening strips during folding movement of the top and bottom parts so that the paper sheets can be manipulated without requiring removal of same. In certain embodiments the counterholder is provided in a separate folding piece.
REFERENCES:
patent: 4256411 (1981-03-01), Podosek
patent: 4261664 (1981-04-01), Crawford
patent: 4784507 (1988-11-01), Vetter
Kratzert Herbert
Schrem Kurt
Bell Paul A.
Kratzert & Schrem GmbH
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