Asymmetrical fabrics composition for winding applications in pipe relining
AssigneeOCV Intellectual Capital, LLC
InventorAntoni Serarols Beltran
Life of this patent
Estimating the term…
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.
Claims19
A continuous fabric for use in forming a repair liner for reinforcing a pipe, the fabric comprising:
- a continuous first portion;
- and
- a continuous second portion;
- wherein the maximum thickness of the first portion is less than the maximum thickness of the second portion, and
- wherein the density of the first portion is greater than the density of the second portion.
(canceled)
A continuous fabric for use in forming a repair liner for reinforcing a pipe, the fabric comprising:
- a top layer;
- and
- one or more bottom layers;
- wherein 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.
16-41. (canceled)
A method of manufacturing a repair liner for reinforcing a pipe, the method comprising:
- selecting a continuous fabric having a top layer, a top intermediate layer, and a bottom intermediate layer, wherein the width of the top layer is less than the width of the continuous fabric and the fiber density of the top layer is less than the fiber density of the bottom intermediate layer;
- and
- wrapping the continuous fabric around a mandrel in an orientation with the top layer outward and in an overlapping pattern with the top layer essentially covering the length of the liner.
Dependencies are inferred from the claim text.