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Reusable inversion sleeve assembly for inversion of cured in place liners

A technology of flipping sleeves and sleeves, which is applied in the direction of pipe elements, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve the problems of not being suitable for large and medium diameter linings, and not providing steam for flat hoses, etc.

Inactive Publication Date: 2009-09-09
INA ACQUISITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The second force varies widely between air and water and can limit the length of the air flip
Furthermore, the method described does not provide for the use of flat hoses to introduce steam
However, the use of puncturing canisters disclosed in these patents is not suitable for large and medium diameter liners

Method used

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  • Reusable inversion sleeve assembly for inversion of cured in place liners
  • Reusable inversion sleeve assembly for inversion of cured in place liners
  • Reusable inversion sleeve assembly for inversion of cured in place liners

Examples

Experimental program
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Embodiment Construction

[0040] A "Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube" (Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube) to CIPP is described here. Improved method and apparatus for air inversion and steam curing of linings. The methods and apparatus described herein are fully applicable to the installation of medium diameter CIPP liners working from the surface through a structure, such as a manhole, to repair existing buried pipelines and pipelines.

[0041] figure 1 There is shown an inverting device 11 having a single rigid lower gland 21 constructed and arranged in accordance with the present invention. Figure 1A A similar device 11a with an upper gland 16 and a lower gland 21 is shown. Considering the similarity of components, in figure 1 and Figure 1A The same reference numerals are used to denote the same components. ...

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PUM

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Abstract

Installation of a flexible cured in place liner by inverting the liner utilizing an inversion sleeve assembly with an installation apparatus having at least one selectively operable rigid gland. The sleeve assembly includes a sleeve portion of an absorbable material secured in an apparatus with an inversion boot fitted at the distal end with an inlet port for inversion and / or curing fluid. The sleeve assembly and apparatus are particularly well suited for inverting with air and curing the liner with steam introduced through a perforated lay flat hose using an apparatus with two glands. The installation sleeve is the same dimension as the liner to be installed and is reusable thereby substantially reducing the set up time to install using the dual gland apparatus. Preferably, the flexible sleeve is a length of dry cured in place liner inverted on to itself to expose two impregnable surfaces. The sleeve may have a built in fluid inlet port for use with a dual gland apparatus.

Description

technical field [0001] The present invention relates to a reusable flip sleeve assembly for installing a cured in place liner by means of a device having at least one rigid gland. The method and apparatus reduce the time required to assemble an impregnated cure-in-place liner that is installed using air inversion and steam curing, and uses a dual gland arrangement that allows the use of Barrier strip and flat hose for introducing steam. Background technique [0002] It is generally known that pipes or pipelines for conducting fluids, especially underground pipelines such as sewage pipes, rainwater pipes, water pipes and gas pipes, often require repairs due to fluid leakage or pipe aging. This leak may be from the periphery inward into the interior or guide of the pipe. Alternatively, the leak may be from the lead-in of the pipeline outward into the surrounding environment. In any case, such leaks need to be avoided. [0003] Leaks may be caused by improper installation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/165
CPCB29C63/36F16L55/1651F16L55/1654F16L55/162F16L55/163F16L55/18
Inventor 富兰克林·托马斯·德赖弗尼尔·T·伯彻勒凯尔·M·科斯塔理查德·C.·波利夫卡王维平
Owner INA ACQUISITION
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