CONDUIT INNERDUCT HAVING REDUCED FRICTION AND HIGH STRENGTH
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United States of America Patent
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Issued Date -
Mar 29, 2012
app pub date -
Jul 29, 2011
filing date -
Sep 23, 2010
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Abstract
A device adapted to be for inserted into a conduit includes a first fabric material having a high tensile strength and a second fabric material having a low coefficient of friction. The materials are attached to each other to form an innerduct. A third fabric material of a low coefficient of friction may be attached to the first material to provide an innerduct whose outer surfaces present a low coefficient of friction. An innerduct or pull tape may also be formed by strands having an inner core of a high tensile strength and an outer sheath having a low coefficient of friction. The strands may be woven together to form the innerduct or pull tape.
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