Reinforced silt retention sheet
AssigneeSilt-Saver, Inc.
InventorEarl R. Singleton
Life of this patent
Estimating the term…
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.
Claims34
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 having a thickness of about 0.1 mm to about 5mm;
- 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 with 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 having a thickness of about 0.1 mm to about 5 mm and 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 geotextile fabric filter material having a thickness of less than about 5 mm and comprising a plurality of entangled polymer fibers;
- and
- a reinforcing material secured within to the entangled polymer fibers without being bonded thereto, the reinforcing material being spaced in discontinuous and non-overlapping intervals in the warp and and/or fill direction directions,
- 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 fabric sheet material having a thickness of about 0.1 mm to about 5 mm and including a plurality of reinforcing elements, said 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 said 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 comprising:
- a flexible, water permeable fabric sheet material comprising a plurality of polymer fibers;
- and
- a plurality of reinforcing elements that provide reinforcing points at which at least one fastener can be attached, said reinforcing elements formed from a resilient, tear resistant material and attached to said fabric sheet material to provide a reinforced fabric sheet material with enhanced strength and resistance to tearing,
- wherein said fabric sheet material comprises a geotextile fabric filter material having 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
- wherein said reinforced silt retention sheet has:
- an ultimate tensile strength ranging from about 100 lbs to 350 lbs in a warp direction,
- an ultimate tensile strength ranging from about 75 lbs to 450 lbs in a fill direction,
- a mullen burst strength ranging from about 150 to 450 pounds per square inch,
- a flow rate ranging from about 35 to 160 gallons/minute/square foot, and
- wherein said reinforcing elements are applied as strands, cords, arrays, strips, patches, or lengths of material attached along the web of said flexible, water permeable fabric sheet material.
Dependencies are inferred from the claim text.