Method of forming a chain of meandering coupling elements for slide fasteners
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United States of America Patent
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Aug 27, 1991
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N/A
app pub date -
Dec 20, 1989
filing date -
Dec 20, 1988
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Expired
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Abstract
A method of forming a chain of meandering or zig-zag coupling elements for slide fasteners includes dividing or bifurcating a continuous length of substantially cross-sectionally circular monofilamentary material axially into identical halves of substantially semi-circular cross-section immediately prior to introduction to a forming apparatus. The identical halves may be provisionally joined together to provide a cross-sectionally circular monofilament and divided back into respective halves immediately prior to formation thereof into respective rows of coupling elements for slide fasteners.
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