Paper binder

Details Paper binder Paper binder

1993-01-12

1994-03-08

Rosenbaum, Mark

Binder device releasably engaging aperture or notch of sheet

Pliant, deformable sheet retainer

Secured by folded portion thereof

B42F 1306

Patent

active

052922049

ABSTRACT:
A paper binder comprises a pair of prongs, an anchor formation at one end of each prong, and a head, the anchor formations being embedded in the head. The invention extends to a method of manufacturing a paper binder, which includes the steps of providing two thin head forming elements that are capable of being bonded together, forming an aperture in one of the elements, inserting a binding member into the aperture, the binding member having a pair of prongs with anchor formations and bonding the elements together, the anchor formations sandwiched therebetween and the prongs extending therefrom. The invention extends further to an apparatus for manufacturing a paper binder which includes an inserting means for inserting the binding member into an aperture in a base element and a bonding means for bonding a cover element to the base element with an anchor formation sandwiched therebetween.

REFERENCES:
patent: 512620 (1894-01-01), McGill
patent: 512621 (1894-01-01), McGill
patent: 1538314 (1925-05-01), Dooner
patent: 2480323 (1949-08-01), Derman
patent: 2578923 (1951-12-01), Crany

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