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1. WO2020157515 - PIPE LINER

Publication Number WO/2020/157515
Publication Date 06.08.2020
International Application No. PCT/GB2020/050228
International Filing Date 30.01.2020
IPC
F16L 55/165 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55Devices or appurtenances for use in, or in connection with, pipes or pipe systems
16Devices for covering leaks in pipes or hoses, e.g. hose-menders
162from inside the pipe
165a pipe being inserted in the damaged section
B29C 63/36 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
63Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
26Lining or sheathing of internal surfaces
34using tubular layer or sheathings
36being turned inside out
B32B 1/08 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products essentially having a general shape other than plane
08Tubular products
B32B 5/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
5Layered products characterised by the non-homogeneity or physical structure of a layer
02characterised by structural features of a layer comprising fibres or filaments
CPC
B29C 53/40
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
53Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
36Bending and joining, e.g. for making hollow articles
38by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
40for articles of definite length, i.e. discrete articles
B29C 63/36
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
63Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
26Lining or sheathing of internal surfaces
34using tubular layers or sheathings
36being turned inside out
B32B 1/08
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
08Tubular products
B32B 2262/101
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2262Composition of fibres which form a fibrous or filamentary layer or are present as additives
10Inorganic fibres
101Glass fibres
B32B 2597/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2597Tubular articles, e.g. hoses, pipes
B32B 27/12
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
12next to a fibrous or filamentary layer
Applicants
  • W.E.RAWSON LIMITED [GB]/[GB]
Inventors
  • BLADES, David
  • JOHNSON, Alexander
Agents
  • APPLEYARD LEES IP LLP
Priority Data
1901387.931.01.2019GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PIPE LINER
(FR) CHEMISAGE DE TUYAU
Abstract
(EN) A pipe liner for lining the inside of a pipe, for example a water or sewerage pipe requiring repair. The pipe liner is mainly formed of a fabric sleeve, or a plurality of fabric sleeves, and comprises a ribbon or strip of fibrous material along a longitudinal seam which reinforces the longitudinal seam. The pipe liners may be suitable for use in repairing damaged or degraded pipes and may provide an improvement in the tensile and/or flexural strength of the longitudinal seam compared to a similar pipe liner with a simple butt-stitched longitudinal seam, whilst not suffering from the disadvantages of reinforced welded seam which can be difficult to turn inside out during installation. The present invention also provides a method of manufacturing such a pipe liner, a pipe lining formed from such a pipe liner and a pipe comprising such a pipe lining.
(FR) L'invention concerne un chemisage de tuyau pour chemiser l'intérieur d'un tuyau, par exemple un tuyau d'eau ou d'égout nécessitant une réparation. Le chemisage de tuyau est principalement constitué par un manchon de tissu, ou une pluralité de manchons de tissu, et comprend un ruban ou une bande de matériau fibreux le long d'un bourrelet longitudinal, qui renforce le bourrelet longitudinal. Les chemisages de tuyau peuvent être appropriés pour une utilisation dans la réparation de tuyaux endommagés ou dégradés et peuvent produire une amélioration de la résistance à la traction et/ou à la flexion du bourrelet longitudinal par rapport à un chemisage de tuyau similaire avec un bourrelet longitudinal simple à point de liaison bout à bout, tout en ne souffrant pas des inconvénients d'un bourrelet soudé renforcé qui peut être difficile à tourner à l'intérieur pendant l'installation. La présente invention concerne également un procédé de fabrication d'un tel chemisage de tuyau, un chemisage de tuyau formé à partir d'un tel chemisage de tuyau et un tuyau comprenant un tel chemisage de tuyau.
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