Ring-center pivot loose-leaf binder page lifter

Details Ring-center pivot loose-leaf binder page lifter Ring-center pivot loose-leaf binder page lifter

2005-06-21

2005-06-21

Banks, Derris (Department: 3722)

Binder device releasably engaging aperture or notch of sheet

Miscellaneous

Sheet lifters

C402S024000, C402S073000, C402S08000L, C402S08000L, C402S079000

Reexamination Certificate

active

06908248

ABSTRACT:
A page lifting device for use with loose-leaf binders containing binding rings. The leaves of the page lifter are formed from one or more stiff sheets of material or loops of stiff wire, rotatably affixed at their inner edges to an attaching member that is fixedly attached to the binding ring-base. The pivot axis between the leaves and attachment member is located close to the center of the substantially circular binder rings which, when the binder is closed, causes the page lifter leaves to envelope and lift the loose-leaf pages away from the binder spine. The page lifter leaves can contain slots or holes therein, which allow them to fit over the binder rings on closing.

REFERENCES:
patent: 2035284 (1936-03-01), Trussell
patent: 2090231 (1937-08-01), Raynolds
patent: 2179757 (1939-11-01), Schade
patent: 3191604 (1965-06-01), Wance
patent: 3306301 (1967-02-01), Mason
patent: 3493310 (1970-02-01), Byrne et al.
patent: 3591300 (1971-07-01), Beyer
patent: 4373825 (1983-02-01), Zabielski
patent: 4420271 (1983-12-01), Zabielski
patent: 4573822 (1986-03-01), Allen
patent: 5503489 (1996-04-01), Maudal
patent: 5549406 (1996-08-01), Cohen
patent: 6200058 (2001-03-01), Maudal
patent: 6273630 (2001-08-01), Sgro et al.
patent: 6287038 (2001-09-01), Chan
patent: 6371678 (2002-04-01), Chizmar
patent: 6536980 (2003-03-01), To
patent: 6558064 (2003-05-01), Tibbetts

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