Patent ID: 9539735
Date: 2017-01-10
CPC Classifications: B26D,B26F,Y10T

Claim:
1. In a system having a revolving compression blade and a revolving anvil cooperating to present a nip, a method comprising the step of: spacing a revolving compression blade apart from a revolving anvil during a closest passage between said compression blade and said revolving anvil, said closest passage greater than zero, said closest passage defining a nip gap between the compression blade and the anvil during respective revolutions, the nip gap adapted to receive a web material, wherein a sum of the distance between said compression blade axis and said compression blade distal end, and a distance between said anvil axis and said first anvil radius, is less than the distance between said anvil axis and said compression blade axis; changing said nip gap by at least one of the steps of advancing a sloped working anvil surface relative to said compression blade or advancing said compression blade relative to said sloped working anvil surface; receiving a composite web in the nip gap, the web comprising at least a middle layer disposed between a first layer that contacts the compression blade and a second layer that contacts the anvil; and completely severing the middle layer without severing the first layer and without severing the second layer.