Ring type binder

Details Ring type binder Ring type binder

1984-07-10

1986-11-25

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 31, B42F 304, B42F 1320

Patent

active

046245952

ABSTRACT:
A four ring-type binder including turnable and fixed rods, in which turnable rods comprise two turnable ring rods each being formed by bending a single metal wire member, one turnable ring rod including two ring sectors opposite to one fixed ring rod and the other turnable ring rod including similar two ring sectors, and in which, among the four ring sectors, only the ring sectors located at the central portion of a binder body have at their free ends stoppers engageable with the free ends of the associated fixed ring rods.

REFERENCES:
patent: 416036 (1889-11-01), Lash
patent: 1299276 (1919-04-01), Whitlock
patent: 1797447 (1931-03-01), Savidge
patent: 3333592 (1967-08-01), Huffaker

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