Binder device releasably engaging aperture or notch of sheet – Pliant – deformable sheet retainer – Flaccid retainer secured by knotted – intertwined or wedge...
Patent
1986-08-13
1988-11-15
Bell, Paul A.
Binder device releasably engaging aperture or notch of sheet
Pliant, deformable sheet retainer
Flaccid retainer secured by knotted, intertwined or wedge...
281 15R, 402 19, 402 22, 402 68, 402 80P, B42F 300, B42F 1310
Patent
active
047845074
ABSTRACT:
A filing device produced as a continuous one-piece body from a sheet or foil by a punching - stamping process has sequencing tongues supported as bending-elastic compression members moving easily with the folding movements of the file covers in insert strips and which are provided with locking members for easily detachable locking in their fastening position. This avoids bending of the sequencing tongues when closing the file covers and the sheets of the fastened sheet layers can be easily turned over and back along the sequencing tongues without the latter accidentally sliding out of the insert strips.
REFERENCES:
patent: 2773504 (1956-12-01), McGrervey
patent: 3834824 (1974-09-01), Jahn
patent: 4174909 (1979-11-01), Jahn
patent: 4192620 (1980-03-01), Jahn
patent: 4256411 (1981-03-01), Podoser
patent: 4261664 (1981-04-01), Crawford
Bell Paul A.
Merz und Vetter GmbH
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