Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent
1996-06-06
1999-02-09
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 38, B42F 304
Patent
active
058685138
ABSTRACT:
A ring binder to be fixed to an article include a support for mounting a plurality of ring members thereon. The ring binder has an exposed upper surface to which the ring members are mounted, the exposed upper surface being defined by upper surfaces of the support. A control member to open and close the ring binder are provided. The support includes a lock co-operable with the control member, the control member including a cross bar member and the lock including a protrusion on the under surface of the support, the cross bar member acting upon the protrusion, whereby closing force applied to the ring members when in open position will not close the ring members. In another embodiment, securement element provided to hold the support and secure the support to an article are situated below the support in regions of limited longitudinal extent adjacent opposite ends of the ring binder.
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Fridie Jr. Willmon
Leco Statioinery Manufacturing Company Limited
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