Patent ID: 6755927
Filing Date: 2004-06-29
Classification: B29D,B31B,B65B,B65D,Y10S,Y10T

Abstract:
A method of making a resealable interlocking closure for a resealable package, consisting of the steps of,a) transporting in lengthwise direction a web of flexible packaging material of selected width and indeterminate length, b) layering said web to form at least one stack of packaging material by heat sealing a strip of hat sealable material to the packaging film, c) securing together the layers of said at least one stack of packaging material to form at least one strip, d) forming inner and outer portions of a resealable interlocking closure, at least said interlocking closure inner portion being formed from said at least one strip of packaging material and for at least a part of its length being thinner in cross section than said interlocking closure outer portion.