Attachment of plastic zipper to the outside of incompatible bag wall web

Claim 1

In a bag comprising a thin web material body having opposite walls providing a bottom end, side seal seams and an openable top flanked by opposed upwardly projecting pull flanges: extruded plastic zipper means comprising a pair of strips having complementary reclosably interlockable zipper profiles having the profiles facing toward one another and the strips located in alignment along lower sides of said pull flanges; one of said strips being mounted on the outside of one wall of the bag body and the other of said zipper strips being mounted along the outside of the opposite wall of the bag body; said material of said bag body and the material of said zipper strips being fusibly incompatible; said side seams having holes therethrough; and fused anchors securing the ends of said zipper strips together through said holes so that the strips are attached to said bag body without affecting the integrity of the bag walls or said side seal seams, so that said zipper strip profiles interlockably interengage and pinch the area of the bag walls between the strips into the interlocked profiles and thereby hold the bag top closed.

Claim 7

A method of making a bag equipped with extruded plastic reclosable zipper means, comprising: forming a bag body from thin web material and having a bottom end, closed sides and an openable top flanked by opposed upwardly projecting pull flanges; providing said bag sides with side seams; providing extruded plastic zipper strips and comprising a pair of opposed strips located in alignment on opposite outside faces of said bag body with complementary reclosably interlockable zipper profiles of the strips facing toward one another with an area of the bag body material intervening between said strips so that the strips can be squeezed together with the intervening material locked in the profiles; assembling said profile strips with the bag body and with opposite ends of the strips sandwiching sides of the bag therebetween; forming holes in said side seams aligned with said strip ends; and fusing connecting anchors from the end portions of the strips through said holes for thereby attaching said opposite ends of said strips to said bag sides.

Claim 8

A method of making a bag equipped with extruded plastic reclosable zipper means, comprising: forming a bag body from thin web material and having a bottom end, closed sides and an openable top flanked by opposed upwardly projecting pull flanges; providing said bag sides with side seams; providing extruded plastic zipper strips and comprising a pair of opposed strips located in alignment on opposite outside faces of said bag body with complementary reclosably interlockable zipper profiles of the strips facing toward one another with an area of the bag body material intervening between said strips so that the strips can be squeezed together with the intervening material locked in the profiles; assembling said profile strips with the bag body and with opposite ends of the strips sandwiching sides of the bag therebetween; forming holes in said side seams aligned with said strip ends; and fusing connecting anchors from the end portions of the strips through said holes for thereby attaching said opposite ends of said strips to said bag sides.