Method and apparatus for making conductive yarn
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United States of America Patent
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Mar 21, 1989
Issued Date -
N/A
app pub date -
Jun 17, 1988
filing date -
May 8, 1987
priority date (Note) -
Expired
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Abstract
A conductive yarn includes a continuous non-conductive carrier thread having a relatively low modulus of elasticity; a continuous metal thread; and the carrier thread being wrapped around the metal thread. A process for making such conductive yarn includes the steps of pulling the continuous metal thread off a first package; pulling the continuous carrier thread off a second package; applying a relatively high tension to the carrier thread with respect to the tension on the metal thread as both threads are being pulled off their respective packages; and wrapping the tensioned carrier thread around the pulled metal thread. Apparatus for performing the method is also provided.
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