Patent ID: 9643812
Date: 2017-05-09
CPC Classifications: B29C,B29K,B29L,B31D,B31F,B65B,B65H,Y10T

Claim:
1. A method for shaping a web that is moving in an incoming machine direction so that the web is bent in the cross-machine direction about at least one generally machine direction-oriented axis, said method comprising the steps of: a) providing a web; b) providing a forming apparatus comprising a forming guide, wherein said forming guide comprises two side edges, an upstream end, a downstream end, a web-facing surface and an opposing surface, wherein said web-facing surface of said forming guide comprises alternating generally machine direction-oriented ridges and valleys therein that are located at least adjacent to said downstream end of the forming guide, and said web-facing surface is configured to provide a equal path length across the width of said web-facing surface when said path length is measured through a series of points, each point being equidistant from one side edge of the web, said forming apparatus comprising one of a device or a mechanism for maintaining the web at least partially in contact with the web-facing surface of said forming guide; c) forming said web by passing said web over and at least partially in contact with the web-facing surface of said forming guide to form multiple side-by-side longitudinally-oriented folds in said web.