File

Details File File

1986-01-15

1987-04-28

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Pliant, deformable sheet retainer

Secured by folded portion thereof

402 17, 402 22, 411 84, 411 85, B42F 1300, B42F 302, F16B 1300, F16B 2700

Patent

active

046610065

ABSTRACT:
A file cover has paper-penetrating prongs which are secured in the assembly by engagement with a mounting channel and at least one of which is slidable along the channel whereby the spacing between them is infinitesimally adjustable. A retainer for each prong is preferably an apertured block borne by a parallel channel member, at least one of the blocks being slidably movable in the parallel channel member.

REFERENCES:
patent: 1638763 (1927-08-01), Ennis
patent: 3456706 (1969-07-01), Ollis, Jr.
patent: 3574472 (1971-04-01), Cott
patent: 4375880 (1983-03-01), Sinclair
patent: 4488844 (1984-12-01), Baubles

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