Binder device releasably engaging aperture or notch of sheet – Opposed sheet retainers involving relative rectilinear travel
Patent
1995-03-30
1996-11-26
Fridie, Jr., Willmon
Binder device releasably engaging aperture or notch of sheet
Opposed sheet retainers involving relative rectilinear travel
B42F 302
Patent
active
055778534
ABSTRACT:
An opening/closing device for a pipe file binder comprising a base, a pair of cover plates pivotally mounted on opposite longitudinal side portions of the base such that the cover plates can be opened and closed, the cover plates each being provided with an opening portion formed in a generally central portion thereof, a resilient member located between the cover plates on the base, a pair of levers provided on generally central portions of outer sides of the cover members and inserted in the opening portions, respectively, and by pressing the levers, a part of an outer side portion of the resilient member being disengaged from a part of an outer side portion of the base so that the cover plates are opened and disengaged.
Fridie Jr. Willmon
Lion Office Products Corporation
LandOfFree
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