Patent ID: 9308133
Filing Date: 2016-04-12
CPC Classification: A61F,B26F,B29C,B29D,B29K,B31F,Y10T

Claim Text:
1. An apparatus comprising a generally cylindrical roll, said roll having a surface, a circumference, and an axis extending in a direction, said roll comprising: a plurality of circumferentially extending ridges and grooves on the surface of the roll that are oriented perpendicular to said axis, wherein said ridges have a top surface and said grooves have a bottom surface; and a plurality of spaced apart teeth extending outwardly from the top surface of said ridges on said roll, said teeth having a base and a single tip, wherein the top surface of the ridges on said roll are disposed between the tips of said teeth and the bottom surface of said grooves, wherein when looking in the direction of the axis of the roll, the teeth are tapered from the base to the tip, and wherein the base of said teeth have a cross-sectional length dimension greater than a cross-sectional width dimension.