Patent ID: 6499275
Filing Date: 2002-12-31
Classification: B65B,B68G

Abstract:
A method of forming a string of pocketed coil springs comprising the steps of:feeding a supply of fabric having first and second generally parallel plies; inserting a series of compressed springs between the first and second plies; joining the first and second plies together to form a longitudinal seam proximate free edges of the first and second plies; allowing the springs to at least partially expand to an extent permitted by the fabric so that a longitudinal axis of each of the springs is generally perpendicular to the longitudinal seam of the fabric; and forming a transverse seam in the fabric generally parallel to the longitudinal axis of the springs and between adjacent springs to thereby enclose each of the springs within a fabric pocket; wherein the transverse seam is formed after the springs are allowed to at least partially expand.