Bookbinding: process and apparatus – Process – Of making a case
Patent
1991-04-03
1992-07-07
Eley, Timothy V.
Bookbinding: process and apparatus
Process
Of making a case
412 17, B42C 700
Patent
active
051277867
ABSTRACT:
A method of making a reinforced book or binder cover of polymer or paper covered panels includes feeding a planar panel such as a paperboard panel into a plurality of cutters, then cutting parallel cuts through the panel with pairs of adjacent parallel cutters and stripping the panel portions between the parallel cuts with a stripping member to form a plurality of spaced panels. A polymer hinge strip is fed onto the planar panels over each stripped away portion and is adhered thereto during the stripping step to thereby hold the separated panels in a spaced relationship to each other to form a hinge between panel sections. A polymer covering is adhered over the paperboard and over the polymer hinge strip on one side thereof to form a cover having a flexible hinge between the spaced panel sections. A polymer or paper liner may be adhered to the other side of the hinged panels and the polymer cover and polymer hinge members may be sealed together at the hinge with thermal or electronic sealing to define the hinges.
REFERENCES:
patent: 4405156 (1983-09-01), Carter et al.
patent: 4600346 (1986-07-01), Podosek
patent: 4712808 (1987-12-01), Beh-Forrest et al.
patent: 4863331 (1989-09-01), Torti
Eley Timothy V.
Fridie, Jr. William
Hobby III William M.
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