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Asymmetrical fabrics composition for winding applications in pipe relining

A fabric, pipe technology, applied in the field of asymmetric fabric combinations for winding applications in pipe relining, can solve difficult or expensive problems

Active Publication Date: 2017-08-18
OWENS CORNING INTELLECTUAL CAPITAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacing certain pipes, especially underground, such as storm or sewer pipes, can be extremely difficult or expensive

Method used

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  • Asymmetrical fabrics composition for winding applications in pipe relining
  • Asymmetrical fabrics composition for winding applications in pipe relining
  • Asymmetrical fabrics composition for winding applications in pipe relining

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Embodiment Construction

[0026] This detailed description merely describes exemplary embodiments in accordance with the general inventive concept and is not intended to limit the scope of the invention in any way. Rather, the invention described by the claims is broader than and not limited to the exemplary embodiments set forth herein, and the terms used herein have their full ordinary meanings.

[0027] The general inventive concept will now be described provisionally with reference to exemplary embodiments of the present invention. However, the general inventive concepts may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the general inventive concept to those skilled in the art.

[0028] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one o...

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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.

Description

[0001] related application [0002] This application claims the benefit of European Patent Application No. 14382418.3 filed October 24, 2014, the entire disclosure of which is incorporated herein by reference. Background technique [0003] Over time, pipes can leak or structurally fail, and periodically require replacement or repair. Replacing certain pipes, especially underground such as storm or sewer pipes, can be extremely difficult or expensive. Accordingly, techniques have been developed to repair pipes in hard-to-reach locations without actually replacing the pipes. [0004] One repair technique involves the use of a cured-in-place pipe liner that can be inserted into an old pipe to substantially replace the old pipe. In particular, cure-in-place pipe linings are known, wherein flexible pipe or protective sleeves are used to line the inside diameter of old pipes. The liner can be built on a resin-backed liner, or the resin can be applied during initial installation. ...

Claims

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Application Information

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IPC IPC(8): B32B5/02B32B5/08B32B5/10B32B5/26B32B5/14B32B7/02B32B7/04B32B33/00F16L55/165
CPCB32B7/05B32B3/263B32B5/02B32B5/08B32B5/10B32B5/22B32B5/26B32B7/02F16L55/1651F16L55/1652F16L55/1656B32B2597/00B32B2307/72B32B2262/106B32B2262/101B32B2262/14B32B2262/02B32B2262/0246B32B2262/0276B32B2262/0261B32B2262/0269B32B2262/0253B32B2250/20F16L11/02B29C63/04B29C63/105B29L2023/001B29C63/14B29C73/04B29K2913/00B29L2023/22B32B5/12F16L55/1655
Inventor A·S·贝尔特伦
Owner OWENS CORNING INTELLECTUAL CAPITAL LLC