Binder device releasably engaging aperture or notch of sheet – Sheet retainer with lock and discrete key operated release...
Patent
1990-12-10
1992-07-07
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer with lock and discrete key operated release...
402 45, 402 48, 402 80P, B42F 302, B42F 1330, B42F 1314
Patent
active
051277557
ABSTRACT:
A binder with a security lock feature having front and back cover panels connected by a spine, and a page-holding mechanism attached to the spine on the inside of the binder for releasably holding pages in the binder. The page-holding mechanism includes a post assembly having a plurality of posts extending generally transversely of the spine at locations spaced longitudinally of the spine for holding pages in the binder. Each post is made up of a pair of interengageable post elements separable to permit pages to be inserted into and removed from the binder. The post assembly is movable between a first position in which the post elements of each post are interengaged and inseparable, and a second position in which the post elements are separable. A latching member is movable between a latching position for latching the post assembly in the first position and a release position for enabling the post assembly to be moved to the second position. A security lock prevents the latching member from being moved from its latching position to its release position so as to lock the post assembly in its first position and thus secure the binder against removal of pages from the binder or insertion of pages into the binder.
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patent: 4730950 (1988-03-01), Ohminato
patent: 4930927 (1990-06-01), Dumas
Bell Paul A.
Olivetti Office USA Inc.
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