Reinforced silt retention sheet
AssigneeSilt-Saver, Inc.
InventorEarl R. Singleton
Life of this patent
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Abstract
A reinforced silt retention sheet and systems for silt retention are provided. The reinforced silt retention sheet includes a non-woven fabric having a series of entangled polymer fibers with a reinforcing material secured within the fabric. The resultant reinforced silt retention sheet further can have openings of a desired size to enable filtering of a flow of fluid passing through the reinforced silt retention sheet.
Claims24
A reinforced silt retention sheet arranged above ground, for use in a silt management application, comprising:
- a flexible, water permeable, nonwoven fabric comprising a plurality of entangled polymer fibers;
- and
- a reinforcing material or element extending along the nonwoven fabric and adapted to support and prevent ripping or tearing of the silt retention sheet secured within the entangled polymer fibers without substantially being bonded thereto, the reinforcing material or element being arranged spaced in non-overlapping intervals in the warp and/or fill direction of the nonwoven fabric,
- wherein the silt retention sheet has a maximum apparent opening size of less than about 0.6 millimeters as measured by ASTM D-4751.
A reinforced silt retention sheet comprising a flexible, water permeable non-woven fabric sheet material including a plurality of non-woven polymer fibers and reinforcing elements formed from a resilient, tear resistant material and interspersed along said fabric sheet material to provide said fabric sheet material with enhanced strength and resistance to tearing, wherein the reinforced silt retention sheet has an apparent sieve opening size of less than approximately 0.6 mm as measured according to ASTM D-4751 to provide filtering efficiency for sediment control applications, and has an ultimate tensile strength ranging from about 100 lbs to 350 lbs in the warp direction and an ultimate tensile strength ranging from about 75 lbs to 450 lbs in the fill direction.
A reinforced silt retention sheet arranged above ground, for use in a silt management application, comprising:
- a flexible, water permeable, nonwoven fabric comprising a plurality of entangled polymer fibers;
- and
- a reinforcing material secured within the entangled polymer fibers without being bonded thereto, the reinforcing material being spaced in discontinuous and non-overlapping intervals in the warp and fill direction,
- wherein the silt retention sheet has a maximum apparent opening size of less than about 0.6 millimeters as measured by ASTM D-4751.
Dependencies are inferred from the claim text.