Patent ID: 6287409
Filing Date: 2001-09-11
Classification: A61F

Abstract:
A method for applying at least one web of elastic material in a curvilinear path onto a continuously moving substrate, said method comprising:(a) moving the substrate along the substrate path;(b) supplying the elastic material to an oscillation unit having at least a first roll having a first roll axis, said first roll being mounted for rolling engagement with a surface of a transfer roll, and said first roll pivoting about a pivot axis parallel to the substrate path with the pivot axis plane further from the point of rolling engagement than the first roll axis such that the first roll is operative to pivot in a plane generally traverse to the substrate path while rolling and thus being effective to apply the elastic material to said transfer roll along the curvilinear path;(c) oscillating the oscillation unit such that the first roll pivots in a plane generally traverse to the substrate path;(d) applying the elastic material from the first roll to the transfer roll in a curvilinear path configuration;(e) applying the elastic material, in the curvilinear path configuration, from the transfer roll to the substrate; and(f) bonding the elastic material, in the curvilinear path configuration, to the substrate.