US Patent 7137177 Top end stop of linear slide fastener

Coil-like or zigzag-like linear fastener elements formed of synthetic fiber mono-filaments are attached such that coupling heads project from a side edge of a fastener tape and at least one coupling head thereof located at a top end is moved to the inside of the fastener tape so as to substantially coincide with the side edge. Then, the fastener element is fused to the fastener tape in a state in which an inverted portion project inwardly while the coupling heads are in a non-coupling condition, so as to form a top end stop. The top end stop formed of the linear fastener element includes plasticity and provides an excellent tactile feeling without any burr on the surface thereof.