Pull cord for coverings for architectural openings and method of making same
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United States of America Patent
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Issued Date -
May 8, 2003
app pub date -
Sep 26, 2002
filing date -
Sep 7, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of manufacturing a control cord for use in a covering for architectural openings includes the steps of providing spools of high tensile strength and low abrasion characteristic yarns, tensioning the yarns and winding the yarns under tension on bobbins, placing the bobbins in a braiding apparatus and making an eight-carrier braid from the yarns on the bobbins, and passing the braided cord through a treatment apparatus where a urethane coating is applied to the yarns and heat cured.
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