Loose leaf binder

Details Loose leaf binder Loose leaf binder

1975-09-10

1977-03-08

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 75, 402 80R, B42F 1312, B42F 1320

Patent

active

040110184

ABSTRACT:
A linking arms mechanism for a prong type loose-leaf paper binder having spacer bars with recessed portions within which curved spaced prongs are fixed and integral raised shear stops are formed which cooperate with a hinge assembly.

REFERENCES:
patent: 693086 (1902-02-01), Trussell
patent: 1663430 (1928-03-01), Wirt
patent: 1670410 (1928-05-01), Hermann
patent: 2120659 (1938-06-01), Wedge
patent: 2791220 (1957-05-01), McBee
patent: 3748051 (1973-07-01), Frank

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