Ring mechanism

Details Ring mechanism Ring mechanism

1984-07-12

1985-11-12

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 1326

Patent

active

045524785

ABSTRACT:
A ring mechanism for mounting on a loose leaf binder has ring elements, for retaining paper, secured to carrier rails within a cover rail. The ring elements are moveable between open and closed positions. The ring elements include bottom portions extending to intermediate locations higher than their lower ends, but arranged to support paper below the top of the cover rail. Additionally, the ring elements are mounted so their first ends are spaced above the binder cover. This arrangement provides operating space for the ring elements, while enabling the ring elements to have a large capacity.

REFERENCES:
patent: 1840743 (1932-01-01), Schade
patent: 1915140 (1933-06-01), Watson
patent: 2265822 (1941-12-01), Spalding
patent: 2512415 (1950-06-01), Buenger et al.
patent: 3263687 (1966-08-01), Weichert
patent: 3809485 (1974-05-01), Beyer
patent: 4214839 (1980-07-01), Sheehan et al.

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