Asymmetrical fabrics composition for winding applications in pipe relining
AssigneeOCV Intellectual Capital, LLC
InventorAntoni Serarols Beltran
Life of this patent
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Abstract
A continuous fabric for use in forming a repair liner for reinforcing a pipe. The fabric includes a top layer and one or more bottom layers. The width of the top layer is less than the width of the continuous fabric and the density of the top layer is less than the density of at least one of the at least one or more bottom layers. The top layer may serve as a guide for winding the fabric in an overlapping pattern about a mandrel so that the essentially only the top layer is visible in the fabric winding.
Claims11
A continuous fabric for use in forming a repair liner for reinforcing a pipe, the continuous fabric comprising:
- a continuous first portion having a first width;
- and
- a continuous second portion having a second width;
- wherein a sum of the first width and the second width equals a total width of the continuous fabric,
- wherein the first width is greater than the second width,
- wherein a maximum thickness of the first portion is less than a maximum thickness of the second portion,
- wherein a first side of the continuous fabric extending across the second width has a first density,
- wherein a second side of the continuous fabric extending across the total width has a second density,
- wherein the first density is in the range of 10-80 g/m2, and
- wherein the second density is in the range of 35-700 g/m2.
Dependencies are inferred from the claim text.