Ring binder

Details Ring binder Ring binder

1996-06-06

1998-08-04

Fridie, Jr., Willmon

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 26, 402 41, B42F 304

Patent

active

057883904

ABSTRACT:
A ring binder adapted to be fixed to an article includes a support for mounting a plurality of ring members thereon, and a control member movable along a sloped portion on the under surface of the support to cause the support to pivot and thereby open the ring members. The sloped portion on the under surface of the support is provided on at least one of an inturned inner edge of the support and a protrusion extending from the under surface of the support.

REFERENCES:
patent: 813753 (1906-02-01), Trusell
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patent: 919497 (1909-04-01), Trussell
patent: 1150719 (1915-08-01), Trussell
patent: 1215371 (1917-02-01), Hawkins
patent: 2439675 (1948-04-01), Segal
patent: 2612169 (1952-09-01), Segal
patent: 3954343 (1976-05-01), Thomsen
patent: 4566817 (1986-01-01), Barrett, Jr.
patent: 4919557 (1990-04-01), Podosek
patent: 5158386 (1992-10-01), Mann, Jr.
Search Report for GB Application No. 9601412.1 (dated Jan. 22, 1997).
Search Report for GB Application No. 9601416.2 (dated Jan. 22, 1997).

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