Bookbinding strips
First Claim
1. For use in binding a stack of sheets each formed with a plurality of apertures, a first strip and a second strip formed with apertures,said first strip having a first pressure-receiving surface and a second pressure-transmitting surface opposite said first surface, a plurality of longitudinally space-apart studs projecting upright from said second surface spaced along said first strip, and dimensioned and positioned to fit into said apertures in said second strip, said studs being smooth and of substantially uniform cross-section for their entire effective lengthsaid second strip having a third pressure-receiving surface and a fourth pressure-transmitting surface opposite said third surface.
2 Assignments
0 Petitions
Reexamination
Accused Products
Abstract
A bookbinding is provided by plastic studs which fit through holes vicinal one margin of each sheet and strips which are fixed to the ends of the studs. The studs may be formed integrally with one or, in alternating arrangement, with both strips and complementary holes formed in the matching strip or strips to receive the stud ends. Excess stud lengths are sheared and headed to lock the strips and interposed sheets in position. Both strips may be apertured and the studs inserted through the holes in the strips and interposed sheets, both ends of the studs being headed. To facilitate handling, strips may be assembled in cartridges or coils, and studs in rods or coils. For thicker books, strips are formed with flanges fitting behind the page margins. Spine concealing tapes and caps fit over or around the spine edges of the sheets.
654 Citations
12 Claims
-
1. For use in binding a stack of sheets each formed with a plurality of apertures, a first strip and a second strip formed with apertures,
said first strip having a first pressure-receiving surface and a second pressure-transmitting surface opposite said first surface, a plurality of longitudinally space-apart studs projecting upright from said second surface spaced along said first strip, and dimensioned and positioned to fit into said apertures in said second strip, said studs being smooth and of substantially uniform cross-section for their entire effective length said second strip having a third pressure-receiving surface and a fourth pressure-transmitting surface opposite said third surface.
Specification