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US 10,066,354 B2Granted
Pyramidal fabrics having multi-lobe filament yarns and method for erosion control
AssigneePropex Operating Company, LLC
InventorSidney M. Weiser
Life of this patent
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AssigneePropex Operating Company, LLC
InventorSidney M. Weiser
Estimating the term…
A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.
A method of making a three-dimensional, geotextile mat comprising weaving drawn, trilobal, heat-shrinkable, thermoplastic polymer filament yarns comprising a denier in the range of about 1200 to about 2000 in a substantially perpendicular direction to each other to produce a single layer woven geotextile mat and heating the woven geotextile mat so as to produce a single layer woven geotextile mat having a cuspated conformation on both an upper face of the geotextile mat and a lower face of the geotextile mat.
Dependencies are inferred from the claim text.