Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent
1998-10-08
1999-12-28
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 75, 402 27, 402 14, 402 70, B42F 304
Patent
active
060072652
ABSTRACT:
A fastener (30) for fastening a paper retaining binder mechanism (18) to the spine (16) of a binder (10) and remaining entirely concealed from an outer surface of the binder. The fastener includes a circular anchor plate (38) and a vertically extending attachment post or eyelet (34). The post is a truncated cone of uniform taper. The anchor plate includes a circumferential reinforcing lip (48). The fastener is secured to the spine by a number of spurs (50) uniformly spaced about the circumference of the anchor plate. The eyelet extends perpendicular of the anchor plate and the binder mechanism seats on the eyelet by an opening (26, 28). The upper end of the eyelet is then deformed about the opening to secure the binder mechanism in place.
REFERENCES:
patent: 534023 (1895-02-01), Vurgason
patent: 5100253 (1992-03-01), Cooper
patent: 5106223 (1992-04-01), Kraus
patent: 5160209 (1992-11-01), Schuessler
patent: 5755513 (1998-05-01), To
patent: 5842807 (1998-12-01), To
patent: 5903958 (1999-05-01), Whaley
Fridie Jr. Willmon
Thurston Alisa
U.S. Ringbinder Corp.
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