Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path
Patent
1998-11-30
2000-03-14
Fridie, Jr., Willmon
Binder device releasably engaging aperture or notch of sheet
Sheet retainer travels arcuate path
402 31, 402 36, 402 41, 402 38, B42F 1300
Patent
active
060363940
ABSTRACT:
A ring binder is provided including a linearly-extending first spine, a linearly-extending second spine, a series of spaced first substantially half-rings attached to one of the spines, and a series of spaced second substantially half-rings on the other of the spines, the distal ends of the half-rings on the first spine facing the distal end of the half-rings on the second spine. A hinge connection extends between the spines. A releasable lock includes a lever and a pair of links is pivoted to the lever and to outer edges of the spines. An integral lever tab extends from between the ends of the spines. Push movement inwardly of the lever, by pushing the lever tabs, places the lock into a locking mode holding the first and second half-rings closed in a paper sheets-holding mode. An outward pull movement of the lever tab places the lock into a non-locking mode resulting in opening of the first and second half-rings in a paper sheets removal mode. A pair of coil springs may be associated with a hinge pintle and the spines to assist in moving the rings to an open position.
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patent: 5836709 (1998-11-01), Cheung
Fridie Jr. Willmon
Steuber David E.
Thurston Alisa
World Wide Stationary Manufacturing Co., Ltd.
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