Conductive yarn
AssigneeCoats & Clark, Inc.
InventorJohn J. M. Rees
Life of this patent
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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.
Claims9
A conductive yarn comprising:
- a continuous non-conductive, substantially non-twisted carrier thread having a relatively low modulus of elasticity;
- a continuous, substantially non-twisted metal thread;
- and
- said carrier and metal threads being wrapped relatively around each other, with said metal thread having a substantially spiral configuration and said metal thread being exposed on an outer surface of said yarn.
Dependencies are inferred from the claim text.