Binder backing for notebooks

Details Binder backing for notebooks Binder backing for notebooks

1985-08-09

1988-06-14

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Depository

Face member with back member

402 13, B42F 1300, B42F 300

Patent

active

047508841

ABSTRACT:
A stability unit used in combination with a three ring binder of the type having front and back covers hingedly mounted between a spine. A binder assembly including arcuate rings halves is mounted to either the spine or cover. The stability unit is mounted to either a spine, cover or both. The stability unit includes recesses adjacent each ring halve and is constructed and arranged such that a ring halve may be inserted therewithin past a resilient projection which provides a locking function. When locked, the binder may be positioned in an upright attitude.

REFERENCES:
patent: 643380 (1900-02-01), Kendig
patent: 940345 (1909-11-01), Moore
patent: 1617958 (1927-02-01), MacLean
patent: 2804872 (1957-09-01), Kraut
patent: 3154281 (1964-10-01), Frank
patent: 3606557 (1971-09-01), Schade
patent: 3807675 (1974-04-01), Seckerson et al.
patent: 4202642 (1980-05-01), Sjostedt
patent: 4269530 (1981-05-01), Weber
patent: 4340317 (1982-07-01), Jahn
patent: 4484830 (1984-11-01), Anderson
patent: 4588321 (1986-05-01), Egly

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