Patent ID: 7244337

Claim:
A system for forming a water blocking tape, the system comprising: a first conveying mechanism to supply a first layer of material, the first conveying mechanism disposed and configured to convey the first layer of material along an axis; a dispensing device disposed along the axis and configured to dispense one or more water blocking compounds on a first surface of the first layer of material as the first layer of material is conveyed past the dispensing device; a second conveying mechanism disposed along the axis downstream from the dispensing device to supply a second layer of material, the second conveying mechanism being disposed and configured to convey the second layer of material along the axis such that the second layer of material becomes disposed on the one or more water blocking compounds, wherein the first layer and the second layer of material form a web with the one or more water blocking compounds disposed therebetween; and an ultrasonic lamination device disposed along the axis downstream from the second conveying mechanism, the ultrasonic lamination device being disposed and configured to emit ultrasonic waves that impinge a first surface of the web and to print a pattern on a second surface of the web as the web is conveyed past the ultrasonic lamination device to bond the first layer of material to the second layer of material along the pattern.