Loose leaf binder

Details Loose leaf binder Loose leaf binder

1973-08-16

1976-03-16

Schnall, Jerome

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 76, 402 80R, B42F 304

Patent

active

039443744

ABSTRACT:
A loose leaf binder comprising a backbone having two hinged halves and a flexible displaceable end portion, a flexible displaceable arm linkage mounted on said backbone so that the backbone end portion and linkage cooperate in engaging and disengaging relationship to form multiple positions of the binder including fully opened and fully closed. The binder is capable of being opened by applying opposing forces to the backbone halves and displacing forces to the arm linkage or by applying forces to the backbone halves alone.

REFERENCES:
patent: 1667744 (1928-05-01), Skiles
patent: 1732584 (1929-10-01), Newman
patent: 2056801 (1936-08-01), Nelson

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