Cover with adhesive bridges in scored areas

Details Cover with adhesive bridges in scored areas Cover with adhesive bridges in scored areas

1980-06-24

1983-02-01

Bell, Paul A.

Books, strips, and leaves

Book, element thereof, or accessory therefor

Binding

281 29, 412 37, B42D 300, B42C 900

Patent

active

043711952

ABSTRACT:
An improved book cover structure of the general type having an integral backbone and front and back covers connected to the backbone via spaced parallel score lines to enable the front and back covers to flex relative to the backbone. A backbone strip of hot melt adhesive is secured on an inside face area of the backbone. Spacer means for positioning the outermost sheets in engagement with the backbone strip are provided and comprise cover strips of hot melt adhesive secured to inside surface areas of the front and back covers adjacent to the score lines with reduced area portions of the cover strips extending across the score lines.

REFERENCES:
patent: 3847718 (1974-11-01), Watson
patent: 3957287 (1976-05-01), Hall
patent: 3964770 (1976-06-01), Abildgaard
patent: 3973787 (1976-08-01), Staats
patent: 4129471 (1978-12-01), Rome
patent: 4141100 (1979-02-01), Domroe
patent: 4289330 (1981-09-01), Wiermanski

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