Water drainage system for a field having a water impermeable layer
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United States of America Patent
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Oct 12, 2010
Grant Date -
Oct 29, 2009
app pub date -
Jul 2, 2009
filing date -
Nov 2, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The tubular element is made with a sleeve formed of a spun bonded polyester material that allows the passage of water and prevents the passage of soil when used for a drainage element. The tubular element is made with small diameters that allows the element to be coiled about a three-dimensional object when used as a cushioning device.
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