Binder device releasably engaging aperture or notch of sheet – Sheet retainer with releasable keeper – Keeper including apertured or recessed sheet retainer...
Patent
1992-10-20
1993-11-09
Rosenbaum, Mark
Binder device releasably engaging aperture or notch of sheet
Sheet retainer with releasable keeper
Keeper including apertured or recessed sheet retainer...
402 60, 281 211, B42F 300
Patent
active
052596834
ABSTRACT:
This invention concerns a paper binder which will enable papers bound therein to be paged in a manner similar to those of a bound book and is made up of a spine member with an adjustable clamping device for holding a bundle of papers against the spine member and a pair of cover connector plates hingedly connected to each side of the spine member with the clamping device in the form of a pair of clamping plates with a pair of flexible elements to thread through a bundle of perforated papers to tie the plates together with the papers securely held between the plates.
REFERENCES:
patent: 1734898 (1929-11-01), Conrad
patent: 2197071 (1940-04-01), Cooper
patent: 2472898 (1949-06-01), Hazel, Jr.
patent: 3752504 (1973-08-01), Dixon
patent: 4984925 (1991-01-01), Chen
Fridie Jr. Willmon
Rosenbaum Mark
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