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1. (WO1997016301) IMPROVEMENTS RELATING TO THE LINING OF PIPELINES AND PASSAGEWAYS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016301 International Application No.: PCT/GB1996/002586
Publication Date: 09.05.1997 International Filing Date: 21.10.1996
Chapter 2 Demand Filed: 23.05.1997
IPC:
B29C 63/36 (2006.01) ,F16L 55/165 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
63
Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
26
Lining or sheathing of internal surfaces
34
using tubular layer or sheathings
36
being turned inside out
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55
Devices or appurtenances for use in, or in connection with, pipes or pipe systems
16
Devices for covering leaks in pipes or hoses, e.g. hose-menders
162
from inside the pipe
165
a pipe being inserted in the damaged section
Applicants:
BELLAMY, Norman, West [GB/GB]; GB
BELLAMY, Sheila [GB/GB]; GB
Inventors:
BELLAMY, Norman, West; GB
BELLAMY, Sheila; GB
Agent:
BAILEY WALSH & CO.; 5 York Place Leeds LS1 2SD, GB
Priority Data:
9522343.401.11.1995GB
Title (EN) IMPROVEMENTS RELATING TO THE LINING OF PIPELINES AND PASSAGEWAYS
(FR) AMELIORATIONS APPORTEES A LA DOUBLURE DE CONDUITES ET DE PASSAGES
Abstract:
(EN) The invention provides that a layer (40) of hardened material is created on the surface of an underground passageway, in particular a sewer (22) so as to restore its utility and the method used is to place a first lining tube (24) in the sewer along its length, and then to evert a second tube (34), of smaller diameter, along the sewer (22) into the first tube. The novelty of the invention is to insert into the first tube (24) a fluent mass (32) against which the second tube (34) is everted and the fluent mass comprises a hardenable material, typically a synthetic resin and a solid particulate material (10), typically even diameter beads, which serves to limit the thickness to which the mass (32) can be compressed between the tubes (24, 34) whereby an even thickness layer of the fluent mass (32) lying circumferentially of the sewer (22) forms between the tubes, and this layer is held and is hardened either by forcing or by natural means.
(FR) Selon l'invention, on crée une couche (40) de matériau durci sur la surface d'un passage souterrain, en particulier un égout (22), de manière à lui restituer son utilité et le procédé qu'on utilise consiste à placer un premier tube de doublure (24) dans la longueur de l'égout, puis retourner un deuxième tube (34) de plus petit diamètre le long de l'égout (22) dans le premier tube. La nouveauté apportée par l'invention réside dans le fait qu'on introduit dans le premier tube (24) une masse fluide (32) contre laquelle le deuxième tube (34) est retourné et que cette masse fluide est constituée par un matériau durcissable, à savoir une résine synthétique et par un matériau solide en particules (10), à savoir des billes de même diamètre, qui servent à limiter l'épaisseur à laquelle la masse (32) peut être comprimée entre les tubes (24, 23), ce qui permet de créer entre les tubes une couche d'épaisseur régulière de la masse fluide (32) s'étendant sur la circonférence de l'égout (22), cette couche étant maintenue et durcie, soit en la forçant, soit par des moyens naturels.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0865356US6161588CA2236580DE000069608969AU1996073159