Loose leaf binders

Details Loose leaf binders Loose leaf binders

1978-09-19

1980-04-29

McQuade, John

Binder device releasably engaging aperture or notch of sheet

Resilient sheet retainer requiring deflection for sheet removal

Releasably attached to keeper

24211M, 402 63, 402 68, 402 80P, B42F 1314

Patent

active

042004047

ABSTRACT:
A loose leaf binder which can be moulded as an integral structure from resilient plastics, e.g. polypropylene has posts which lie in openings in a side portiion of the binder and are pivotable into the upright position. Projections on the posts or the side portion adjacent the pivotal connection serve to maintain the posts releasably in the upright position. The free ends of the posts are engageable in openings in the other side portion and movable locking members are provided to positively lock the ends of the posts in these openings.

REFERENCES:
patent: 1302918 (1919-05-01), Harris
patent: 1463949 (1923-08-01), Gerber
patent: 2109520 (1938-03-01), Awbrey
patent: 2193802 (1940-03-01), Chambless et al.
patent: 3087498 (1963-04-01), Vogel
patent: 3260264 (1966-07-01), McKowen
patent: 3537146 (1970-11-01), Caveney
patent: 3768838 (1973-10-01), Shibata
patent: 4000951 (1977-01-01), Agnew et al.

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