Patent ID: 8424171

Claim:
A length of zipper material for reclosable packages or bags, including: first and second interlocking profiles including respective first and second interlocking elements and respective first and second bag wall engaging flanges, wherein the first and second bag wall engaging flanges are attached to an exterior of the respective first and second interlocking elements, whereby the first and second bag wall engaging flanges are configured and arranged to connect the first and second interlocking elements to respective first and second bag walls; at least one slider mounted on the first and second interlocking elements; a plurality of endstops formed on the length of zipper wherein a portion of the first and second interlocking profiles are fused together, the endstops having the shape of an inverted T; wherein the shape of the inverted T includes a stem perpendicular to the interlocking elements and at least one cross element parallel to the interlocking elements; wherein the stem includes a portion where the first and second interlocking elements are crushed; wherein the at least one cross element is immediately below a lower surface of the slider and includes at least a portion wherein the first and second bag wall engaging flanges are fused together at a position separated from and below the interlocking elements thereby minimizing prying forces on the slider when a load is exerted on the first and second bag wall engaging flanges.