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US 5,102,727 AGranted
Electrically conductive textile fabric having conductivity gradient
AssigneeMilliken Research Corporation
InventorsEdgar H. Pittman, Hans H. Kuhn
Life of this patent
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Abstract
An electrically conductive textile fabric is provided having a conductivity gradient created by varying the relative concentration of high and low conductivity yarns during construction of the fabric. In the case of woven and knitted fabrics, the relative number of high and low conductivity yarns per inch may be varied in the warp or weft direction or both.
Claims12
An electrically conductive textile fabric having a conductivity gradient therein, characterized by a first area of relatively high conductivity and a second area of relatively low conductivity, comprising:
- a plurality of high conductivity yarns incorporated into the body of said fabric having a conductivity greater than an average conductivity across said gradient;
- a plurality of low conductivity yarns incorporated into the body of said fabric having a conductivity less than an average conductivity across said gradient and less than said conductivity of said high conductivity yarns;
- wherein a concentration of said high conductivity yarns relative to said low conductivity yarns in said first area is sufficient to achieve a conductivity greater than said average conductivity across said gradient;
- and
- wherein a concentration of said high conductivity yarns relative to said low conductivity yarns in said second area is sufficient to achieve a conductivity less than said average conductivity across said gradient.
2 more elements
Dependencies are inferred from the claim text.