Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent
1980-06-03
1982-09-14
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer travels arcuate path
Travel in plane perpendicular to axis of rotation
402 34, 402 41, B42F 304, B42F 1318
Patent
active
043492894
ABSTRACT:
An arrangement is provided for retaining loose sheets of paper. A pair of sheet retaining components, each having a plurality of half loops, are hingedly held together by wire clips. An actuator is interposed between the sheet retaining components. The actuator is provided with inclined slots which, when the actuator is displaced, engage and move the clips causing one sheet retaining component to move with respect to the other to unlock the engaged ends of the respective half loops. Once unlocked, the sheet retaining components can be hinged apart to permit removal and/or addition of loose leaf paper.
REFERENCES:
patent: 2314204 (1943-03-01), Fontecillo
patent: 2437360 (1948-03-01), Purvis
patent: 2548618 (1951-04-01), Purvis
patent: 2598044 (1952-05-01), Emmer
patent: 2715906 (1955-08-01), Lucchese
patent: 3003503 (1961-10-01), Dennis
patent: 3162198 (1964-12-01), Dennis
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