Patent ID: 7115089

Claim:
A method for folding sheet material with tessellated patterns, comprising: a) providing a plurality of sets of rollers, where each set of rollers is defined by only a first roller and a second roller defining a direction of material movement; b) providing at least one tessellation disposed on each roller of the first set of rollers in said direction of movement of said material; c) providing at least one tessellation disposed on each roller of the remainder of said plurality of sets of rollers, wherein each of said tessellations of said remainder of said sets of rollers makes one fold in said sheet; and wherein each roller of said remainder of said set of rollers, except for the last set of first and second rollers, has two more tessellations than each roller of a previous set of rollers; d) moving said sheet material through said plurality of sets of rollers; e) folding said sheet material with each tessellation on each roller of said sets of rollers forming one corresponding fold.