Sheet lifter for a loose leaf binder

Details Sheet lifter for a loose leaf binder Sheet lifter for a loose leaf binder

1984-02-27

1986-03-04

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Miscellaneous

Sheet lifters

402 24, B42F 1300

Patent

active

045738220

ABSTRACT:
A leaf-lifter device to be used in connection with ring binders so that the loose-leaf pages in the binder do not bind under the rings of the binder when the loose leaf is closed. In one preferred embodiment the apparatus is comprised of seven parallel strips of plastic connected to one another by a flexible, thin plastic membrane which forms a hinge. Each of the two outside parallel strips are mounted to the adjacent outer leaf of the binder. The inner or center strip is mounted to the binder spring plate. The intermediate strips are not attached to the binder so that as the binder is closed the two intermediate strips will buckle at their hinged edges and will thus lift the loose-leaf pages so that they avoid binding and tearing under the binder rings.

REFERENCES:
patent: 2035284 (1936-03-01), Trussell
patent: 2089211 (1937-08-01), Krag
patent: 2179757 (1939-11-01), Schade
patent: 2179986 (1939-11-01), Trussell
patent: 2276987 (1942-03-01), Kengott
patent: 3306301 (1967-02-01), Mason
patent: 3591300 (1971-06-01), Beyer

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