Binder device releasably engaging aperture or notch of sheet – Sheet retainer with releasable keeper – Keeper including apertured or recessed sheet retainer...
Patent
1994-03-21
1994-11-15
Echols, P. W.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer with releasable keeper
Keeper including apertured or recessed sheet retainer...
402 14, 402 75, B42F 300, B42F 1302
Patent
active
053641990
ABSTRACT:
A sheet fastener hinge device to removably hinge a second cumulative stack of flexible sheets to a first cumulative stack of flexible sheets. A first elongated panel has a pair of spaced holes or an elongated slot to receive the prongs of a first sheet fastener extending through a pair of apertures spaced adjacent one edge of the sheets in the first stack to removably attach the first panel to the front of the first stack. A second elongated panel has a pair of integral spaced prongs extending therefrom or a pair of spaced holes to receive a second sheet fastener to provide a pair of spaced prongs extending therefrom. The prongs extend through a pair of apertures spaced adjacent one edge of the sheets in the second stack to removably attach the second stack of sheets to the second panel. The second panel is hingedly connected to the first panel, whereby the second stack of sheets pivotable between a closed position in which the second stack of sheets lies against the first stack and an open position in which the two stacks lie in the same plane. In another embodiment, one of the panels can be replaced by a pair of spaced flaps hingedly connected to the remaining panel.
REFERENCES:
patent: 1987012 (1935-01-01), Karlen
patent: 2005717 (1935-06-01), Coulston
patent: 2352196 (1944-06-01), Hartmann
patent: 2571044 (1951-10-01), Lynch
patent: 4300848 (1981-11-01), Waegemann
Echols P. W.
McKenzie R. Dale
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