Importance

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Abstract

An apparatus for forming a wire mat includes a wire guide for simultaneously guiding multiple moving wires onto a moving plastic sheet. A pressure roll arrangement downstream from the wire guide has a first pressure roller and a second pressure roller that is engageable with the first pressure roller. The pressure rollers can apply pressure along a line of contact for combining the multiple wires with the plastic sheet between the rollers. The wire guide and one of the pressure rollers are configured to allow a voltage potential to be formed between the wire guide and the pressure roller for causing current to flow and heating of a portion of the wires between the wire guide and the pressure roller. The portion of the wires that is heated is capable of heating portions of the plastic sheet to allow the wires to be embedded into the plastic sheet by the pressure rollers along the line of contact to form a wire mat.

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First Claim