Reusable/refillable spiral binder

Details Reusable/refillable spiral binder Reusable/refillable spiral binder

1994-04-05

1995-05-23

Han, Frances

Binder device releasably engaging aperture or notch of sheet

Resilient sheet retainer requiring deflection for sheet removal

402 26, 402 57, 402501, B42F 306

Patent

active

054175089

ABSTRACT:
A reusable/refillable binder for papers and the like having marginal perforations. The binder includes a binding element having opposite coiled ends and a multiplicity of spiral coils disposed therebetween adapted to be received within the perforations in the papers in threaded relations thereof. Each coiled end of the binding element includes an aperture extending therethrough. A removable locking element is coupled to the aperture at each respective coiled end of the binding element and to one of the multiplicity of spiral coils to prevent rotation of the multiplicity of spiral coils and thus unbinding of the papers from the binder.

REFERENCES:
patent: 2051738 (1936-08-01), Ottinger
patent: 2134400 (1938-10-01), Grumbacher
patent: 2153575 (1939-04-01), Kramer
patent: 2188680 (1940-01-01), Farkas
patent: 2228110 (1941-01-01), Grumbacher
patent: 2228355 (1941-01-01), Key
patent: 2681655 (1954-06-01), Schade

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