Snap ring assembly

Details Snap ring assembly Snap ring assembly

1989-06-19

1991-05-28

Watts, Douglas D.

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 80P, 402 73, 402 39, 281 271, B42F 300

Patent

active

050188968

ABSTRACT:
Provided is a snap ring assembly (100) for use in holding papers together such as in a two or three-ring looseleaf notebook or binder. Assembly (100) is preferably a one-piece molded construction including an elongate base portion (30) extending between sidewalls including respective proximate sections (32, 32') extending transversly therefrom and distal sections (34, 34') that are separated by respective hinge sections (38, 38') and respective free-ends that are configured to matingly engage to cause ring sections (38, 38') to snap together to provide a closed connection when distal sections (34, 34') are pivoted for a predetermined distance toward each other.

REFERENCES:
patent: 837106 (1910-12-01), Sturgis
patent: 879928 (1908-02-01), Trussell
patent: 1769120 (1930-07-01), Dawson
patent: 2051617 (1936-10-01), Newman
patent: 3105494 (1963-10-01), Duncan
patent: 3995961 (1976-12-01), Dorfmann et al.
patent: 4295747 (1981-10-01), Errichiello
patent: 4566817 (1986-01-01), Barrett, Jr.
patent: 4607970 (1986-10-01), Heusinkveld

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