Centerline-attached looseleaf notebook page lifter

Details Centerline-attached looseleaf notebook page lifter Centerline-attached looseleaf notebook page lifter

1982-09-14

1983-12-13

Silverberg, Fred

Binder device releasably engaging aperture or notch of sheet

Miscellaneous

Sheet lifters

B24F 1300

Patent

active

044202717

ABSTRACT:
A page lifting device for use with looseleaf binders containing binding rings. The leaves of the page lifter are formed from one or more rigid or flexible sheets of material, or loops of stiff wire, rotatably affixed at their inner edges to the inside of the binder at or contiguous with the centerline of the binding ring base cover. They can contain slots therein, which allow them to fit over the binder rings on closing, or be one or more rigid or flexible sheets located between the binder rings, and affixed to the inside of the binder such that the leaf or leaves envelope and lift the looseleaf pages away from the binder spine on closing.

REFERENCES:
patent: 791296 (1905-05-01), Shepherd
patent: 1977897 (1934-10-01), Schlosser et al.
patent: 2090231 (1937-08-01), Raynolds
patent: 2179986 (1939-11-01), Trussell
patent: 3191604 (1965-06-01), Wance
patent: 3591300 (1971-07-01), Beyer
patent: 3758219 (1973-09-01), Stasio et al.
patent: 4185934 (1980-01-01), Hodson

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