Binder with closure

Details Binder with closure Binder with closure

1985-09-18

1988-05-17

Goldberg, Howard N.

Binder device releasably engaging aperture or notch of sheet

Depository

402 70, 402502, 281 29, B42F 1316, B42D 300, B42D 310

Patent

active

047446897

ABSTRACT:
In a standard binder, the improvement comprising the provision of a closure connected by a hinge to one of the covers at an outside edge thereof, a ledge on the closure and having an upper surface, the surface located at a distance from the cover to which the closure is connected approximately equal to the distance between the inner faces of the two covers at the spine, whereby the covers are maintained in substantially parallel relationship to each other regardless of the amount of paper in the binder. In alternate forms of the binder, a flap is provided which is releasably secured to one of the covers. The flap may overlie or be tucked under the other cover, and the closure and ledge are so arranged that the covers are approximately parallel when the binder is closed and secured.

REFERENCES:
patent: 1329910 (1920-02-01), Lambert
patent: 1711894 (1929-05-01), Lawrence
patent: 1918773 (1933-07-01), Morehouse
patent: 2333523 (1943-11-01), Cohun
patent: 2804872 (1957-09-01), Kraut
patent: 4515493 (1985-05-01), Radovich
patent: 4531764 (1985-07-01), Chang
patent: 4588321 (1986-05-01), Egly

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