CA2057341C - Method and apparatus for repairing pipelines - Google Patents
Method and apparatus for repairing pipelinesInfo
- Publication number
- CA2057341C CA2057341C CA002057341A CA2057341A CA2057341C CA 2057341 C CA2057341 C CA 2057341C CA 002057341 A CA002057341 A CA 002057341A CA 2057341 A CA2057341 A CA 2057341A CA 2057341 C CA2057341 C CA 2057341C
- Authority
- CA
- Canada
- Prior art keywords
- hose
- clamp
- film
- pipe
- repaired
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1651—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being everted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pipe Accessories (AREA)
- Pipeline Systems (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to a method and an apparatus for repairing pipelines, particularly for the sealed inner lining of pipes using a film hose provided with an adhesive and which by means of a transport hose is pressed in inverting manner into the pipe by means of a pressure medium and is kept dimensionally stable until the adhesive is cured, the film hose (3) being fixed by means of clamp pieces (6, 7) and is then coupled and at the end of the pressing in process the clamp hose (4) is unclamped by means of a hose clamp (11) and an auxiliary pressure medium is supplied for compensating pressure losses and the clamp hose (4) is closed in sealed manner by means of a blind flange (12) after unclamping has taken place.
Description
~ 20S7341 METHOD AND APPARATUS EOR REPAIRING PIPELINES
m e invention relates to a methcd and an apparatus for repairing or rehabilitatig pipelines, part;oll~rly for the tight internal lining of pipes laid in the ground.
In the case of old or damaged pipelines, part;~llarly those for gases or liquids, as a result of the escape of the latter dangerous situations and econcmic damage can occur. m e replacement of pipes by digging out is ve~y costly and in many cases not possible as a result of damage and obstructions.
m erefore methcds for the repairing or rPh~h;l;tating of pipelines have been proposed, by means of which the existing pipes are given an internal lining.
m us, Ge~man patent 39 06 057 discloses a methcd for lining a pipe laid in the ground using a lining tube or hose, whose non-woven fabric layer is impregnated with a curable synthetic resin. m e lining hose is inserted in the pipe and pressed by a pressure me~;l~ onto the inner face of the pipe to be repaired until the synthetic resin has cured. However, it is disad-vantageous in this solution that the lining hose has to be intrcduced by means of a cable and winch in a ccmplicated manner and the widening of the l;ning hose is brought about by a c~l;hr~ting hose, which is reversed by an inversion tube in the interior of the lining hose.
GR~man patent 36 90 695 proposes a method for prcducing protective cc,verings on a pipeline inner surface, in which a fl~x;hle hose is inverted during its movement and is pressed by an overpressure onto the pipeline inner surface to be cc~ered. Hc,wever, it is disadvantageous in this method that the adhesive is located between the inverting flexible hose and a plunger, because deposits and unevennesses on the pipeline inner surface make it more difficult to bring about a gocd sealing action by the plunger.
DE-OS 19 12 478 describes a method for bonding in plastic hoses in pipes or pipelines, a plastic hose provided with a special adhesive being reversed and bonded in with the aid of a reversing head and a pressure medium.
m e known solutions suffer frcm the common disadvantage, that they require complicated equipment on site and are subject to high safety requirements.
'~C
m e invention relates to a methcd and an apparatus for repairing or rehabilitatig pipelines, part;oll~rly for the tight internal lining of pipes laid in the ground.
In the case of old or damaged pipelines, part;~llarly those for gases or liquids, as a result of the escape of the latter dangerous situations and econcmic damage can occur. m e replacement of pipes by digging out is ve~y costly and in many cases not possible as a result of damage and obstructions.
m erefore methcds for the repairing or rPh~h;l;tating of pipelines have been proposed, by means of which the existing pipes are given an internal lining.
m us, Ge~man patent 39 06 057 discloses a methcd for lining a pipe laid in the ground using a lining tube or hose, whose non-woven fabric layer is impregnated with a curable synthetic resin. m e lining hose is inserted in the pipe and pressed by a pressure me~;l~ onto the inner face of the pipe to be repaired until the synthetic resin has cured. However, it is disad-vantageous in this solution that the lining hose has to be intrcduced by means of a cable and winch in a ccmplicated manner and the widening of the l;ning hose is brought about by a c~l;hr~ting hose, which is reversed by an inversion tube in the interior of the lining hose.
GR~man patent 36 90 695 proposes a method for prcducing protective cc,verings on a pipeline inner surface, in which a fl~x;hle hose is inverted during its movement and is pressed by an overpressure onto the pipeline inner surface to be cc~ered. Hc,wever, it is disadvantageous in this method that the adhesive is located between the inverting flexible hose and a plunger, because deposits and unevennesses on the pipeline inner surface make it more difficult to bring about a gocd sealing action by the plunger.
DE-OS 19 12 478 describes a method for bonding in plastic hoses in pipes or pipelines, a plastic hose provided with a special adhesive being reversed and bonded in with the aid of a reversing head and a pressure medium.
m e known solutions suffer frcm the common disadvantage, that they require complicated equipment on site and are subject to high safety requirements.
'~C
The present invention provides a method and an apparatus for repairing pipelines, which avoid the aforementioned disadvantages, allow high mobility and ensure rapid, simple and reliable repairs to take place.
This problem is solved by using a method for repairing pipelines, particularly the sealed inner timing of pi-pes using a film hose provided with an adhesive, which, via a transport hose, is pressed in inverting manner by means of a pressure medium into the pipe and is held in dimensionally stable manner until the adhesive cures, whereby the film hose is fixed in a reversal head by means of outer clamp pieces and inner clamp pieces, the reversal head is connected to a coupling piece fixed to the pipe to be repaired, the film hose is pressed in inverting manner into the pipe to be repaired by means of a pressure medium, and at the end of the pressing in process clamping is carried out outside the pipe to be repaired and an auxiliary pressure medium is supplied to the side of the clamping point facing the pipe as from the clamping point for the purpose of compensating pressure losses, characterized in that at the end of the pressing in process a clamp hose, which is firmly connected to the reversal head and through which the film hose is inserted into the reversal head, is clamped by means of a hose clamp and the hose clamp is closed in sealed manner behind the hose clamp, when considered from the pipe to be repaired, by means of a blind flange, after clamping has taken place.
Further to solve this problem, an apparatus is provided for repairing pipelines, particularly the sealed inner lining of pipes using a film hose provided with an ad-hesive, with a reversal head having outer clamp pieces - 2a - 2057341 and inner clamp pieces for fixing the film hose having a hold-back band and connected to a coupling piece fixed to the pipe to be repaired, and with a connecting piece for supplying an auxiliary pressure medium to the film hose, characterized in that a clamp hose, through which the film hose can be inserted into the reversal head, is firmly connected to the reversal head and a hose clamp is provided for clamping the clamp hose and there is a blind flange for the sealing closure of the clamp hose behind the hose clamp, when considered from the pipe to be repaired.
In conjunction with the inventive apparatus, the inven-tive method has the advantage that at the end of the pressing in process of the prefabricated film tube or hose coated with thé adhesive, the clamp or clip hose is pinched off or clamped by means of a hose or tube clip or clamp and subsequently closed by a blind flan-ge. This terminates the introduction phase of the film tube in the particular pipe section to be repaired. No further equipment or personnel are required for the curing phase of the adhesive-coated film tube. Instead the work team can immediately start to repair a new pipeline section. Through the use of a clamp hose and a hose clamp it is possible to bring about the clipping or clamping even when a hold-back band is passed through the clamping point. Pressure losses which occur are compensated by an auxiliary pressure medium.
The use of a movable pressure vessel, which contains the film tube coated on its inside with adhesive wound onto a drum, permits economic and effective working even in a confinded space, because the repair vehicles need not be directly located at the installation point.
In order to speed up the adhesive curing process, hot water can be used as the pressure medium. In place of I
- 2b - 205734 1 the hold-back band, use is then made of a hose for ob-taining a hot water circuit and the blind flange has a water inflow and outflow.
The invention is described in greater detail hereinaf-ter relative to non-limitative embodiments and the attached drawings, wherein show:
Fig. 1 The arrangement of the individual components for performing the inventive method.
Fig. 2 The phase of transporting the film tube to the installation point.
~; ~
,, .
Fig. 3 The start of the film tube pressing in pr~cess.
Fig. 4 The end of the pressing in process with the traversed film tube and hold-back band.
Fig. 5 The unclamped clamp hose provided with the blind flange and the supply of the ~lx;li~ry pressure me~
As can be gathered fr~m fig. 1, a movable pressure vessel 1 is in the immed-iate vicinity of the installation point of the pipe 8 to be repaired. m e movable pressure vessel 1 contains a drum laJ onto which is wcund the pre-fabricated film hose 3 provided on its inside with a cold-curing two-component adhesive. The film tube 3 is fabric-reinforced. A transport hose 15 supplies the film hose 3 to the install~tion point.
As can be seen in fig. 2, the transport hose 15 is connected by a flange oonnection to the clamp hose 4, which is firmly connected at its end facing the installation point to a reversal head 5. The reversal head 5 is used for firmly clamping the film hose 3 and for coupling to the coupling piece 9 arranged in tension-resistant manner on the pype 8 to be repaired. m e clamping of the film hose 3 takes place in such a way that it is inserted and tightly clamped between the outer clamp pieces 6 and the inner cl2mp pieces 7. The reversal head 5 is hung in tension-resistant manner on the coupling piece 9. m e end of the pipe to be repaired is closed by an end cap 14, which has venting means. As a result the film hose 3 cannot be pressed out of the pipe 8 to be repaired. This cn~c~ the preparatory phase for pressing in the film hose 3.
Fig. 3 shows the start of the pressing in process of the film hose 3. By means of the pressure vessel the film tube 3 is supplied with compressed air, so that it is inverted on the reversal head 5 and pressed into the pipe 8 to be repaired. m e pressing in process is continued until the film tube 3 has reached the end of the pipe 8 to be repaired.
m e pressing in pr~cess is regulated and oontrolled by means of the hold-back band 10 fixed to the film hose 3 and shown in fig. 4. m e hold-back band 10 preferably has the same width as the folded up film hose 3. As a result the joint winding of the film hose 3 and the hold-back band 10 onto the drum la in preparation for the repairs is facilitated. By regulating the pressing in process by means of the hold-back band 10, it is ensured that the film hose 3, particularly in the final phase of the pressing in process, is not pressed in too rapidly and ensures that the adhesive is uniformly distributed and the film hose 3 is always reliably pressed onto the inner wall of the pipe 8 to be repaired.
At the end of the pressing in process and as shown in Fig. 5, the film hose 4 is clamped by means of a hose clamp 11.
Simultaneously the side of the clamp hose 4 facing the pipe 8 to be repaired as from the clamping point is supplied in regulated manner by means of a connecting piece 13 with an auxiliary pressure medium in the form of compressed air for compensating pressure losses. The pressure losses can result from leaks at the clamping point, particularly through the also clamped in hold-back band 10.
After clamping the transport hose 15 is separated from the clamp hose 4 by releasing the flange, the hold-back band 10 is separated and the clamp hose 4 is tightly closed by means of a blind flange 12 behind the hose clamp 11, seen from the pipe 8 to be repaired. When the connections are completely tight the auxiliary pressure medium can be stopped. However, to provide security against any possible leaks, it can remain connected to the end of the curing process. The closure of the clamp hose 4 by the blind flange 12 terminates the introduction phase of the film hose 3 into the pipe 8 to be repaired.
Neither personnel, nor further equipment are required for the following curing phase.
`~ j ln order to speed up the adhesive curing process, it is possible to replace the compressed air as the pressure medium by hot water at the end of the pressing in process, it being advantageous to ensure a hot water circuit. For this purpose the hold-back band 10 is constructed as a hose connected by means of openings to the interior of the pressed in film hose 3. The blind flange 12 has water supply and discharge means.
The hose clamp 11 on the clamp hose 4 is opened again for replacing the compressed air by the hot water as the pressure medium and is kept open for obtaining the water circuit.
The inventive apparatus comprises a reversal head 5 fixed to the clamp hose 4. The reversal head 5 has outer clamp pieces 6 and inner clamp pieces 7, by means of which the film hose 3 is fixed. A coupling piece 9, connected to the reversal head 5, is fixed to the pipe 8 to be repaired. For clamping the clamp hose 4, a hose clamp 11 is provided and there is a connecting piece 13 for supplying an auxiliary pressure medium.
A blind flange 12 is used for sealing closure of the clamp hose 4. The pipe 8 to be repaired is provided at the end opposite to that for the introduction of the film hose 3, with an end cap 4, which has venting means. The hold-back band 10 has approximately the same width as the folded film hose 3 and is constructed in the present embodiment as a hose for bringing about a water circuit. The blind flange 12 is provided with a water inflow and outflow.
I
This problem is solved by using a method for repairing pipelines, particularly the sealed inner timing of pi-pes using a film hose provided with an adhesive, which, via a transport hose, is pressed in inverting manner by means of a pressure medium into the pipe and is held in dimensionally stable manner until the adhesive cures, whereby the film hose is fixed in a reversal head by means of outer clamp pieces and inner clamp pieces, the reversal head is connected to a coupling piece fixed to the pipe to be repaired, the film hose is pressed in inverting manner into the pipe to be repaired by means of a pressure medium, and at the end of the pressing in process clamping is carried out outside the pipe to be repaired and an auxiliary pressure medium is supplied to the side of the clamping point facing the pipe as from the clamping point for the purpose of compensating pressure losses, characterized in that at the end of the pressing in process a clamp hose, which is firmly connected to the reversal head and through which the film hose is inserted into the reversal head, is clamped by means of a hose clamp and the hose clamp is closed in sealed manner behind the hose clamp, when considered from the pipe to be repaired, by means of a blind flange, after clamping has taken place.
Further to solve this problem, an apparatus is provided for repairing pipelines, particularly the sealed inner lining of pipes using a film hose provided with an ad-hesive, with a reversal head having outer clamp pieces - 2a - 2057341 and inner clamp pieces for fixing the film hose having a hold-back band and connected to a coupling piece fixed to the pipe to be repaired, and with a connecting piece for supplying an auxiliary pressure medium to the film hose, characterized in that a clamp hose, through which the film hose can be inserted into the reversal head, is firmly connected to the reversal head and a hose clamp is provided for clamping the clamp hose and there is a blind flange for the sealing closure of the clamp hose behind the hose clamp, when considered from the pipe to be repaired.
In conjunction with the inventive apparatus, the inven-tive method has the advantage that at the end of the pressing in process of the prefabricated film tube or hose coated with thé adhesive, the clamp or clip hose is pinched off or clamped by means of a hose or tube clip or clamp and subsequently closed by a blind flan-ge. This terminates the introduction phase of the film tube in the particular pipe section to be repaired. No further equipment or personnel are required for the curing phase of the adhesive-coated film tube. Instead the work team can immediately start to repair a new pipeline section. Through the use of a clamp hose and a hose clamp it is possible to bring about the clipping or clamping even when a hold-back band is passed through the clamping point. Pressure losses which occur are compensated by an auxiliary pressure medium.
The use of a movable pressure vessel, which contains the film tube coated on its inside with adhesive wound onto a drum, permits economic and effective working even in a confinded space, because the repair vehicles need not be directly located at the installation point.
In order to speed up the adhesive curing process, hot water can be used as the pressure medium. In place of I
- 2b - 205734 1 the hold-back band, use is then made of a hose for ob-taining a hot water circuit and the blind flange has a water inflow and outflow.
The invention is described in greater detail hereinaf-ter relative to non-limitative embodiments and the attached drawings, wherein show:
Fig. 1 The arrangement of the individual components for performing the inventive method.
Fig. 2 The phase of transporting the film tube to the installation point.
~; ~
,, .
Fig. 3 The start of the film tube pressing in pr~cess.
Fig. 4 The end of the pressing in process with the traversed film tube and hold-back band.
Fig. 5 The unclamped clamp hose provided with the blind flange and the supply of the ~lx;li~ry pressure me~
As can be gathered fr~m fig. 1, a movable pressure vessel 1 is in the immed-iate vicinity of the installation point of the pipe 8 to be repaired. m e movable pressure vessel 1 contains a drum laJ onto which is wcund the pre-fabricated film hose 3 provided on its inside with a cold-curing two-component adhesive. The film tube 3 is fabric-reinforced. A transport hose 15 supplies the film hose 3 to the install~tion point.
As can be seen in fig. 2, the transport hose 15 is connected by a flange oonnection to the clamp hose 4, which is firmly connected at its end facing the installation point to a reversal head 5. The reversal head 5 is used for firmly clamping the film hose 3 and for coupling to the coupling piece 9 arranged in tension-resistant manner on the pype 8 to be repaired. m e clamping of the film hose 3 takes place in such a way that it is inserted and tightly clamped between the outer clamp pieces 6 and the inner cl2mp pieces 7. The reversal head 5 is hung in tension-resistant manner on the coupling piece 9. m e end of the pipe to be repaired is closed by an end cap 14, which has venting means. As a result the film hose 3 cannot be pressed out of the pipe 8 to be repaired. This cn~c~ the preparatory phase for pressing in the film hose 3.
Fig. 3 shows the start of the pressing in process of the film hose 3. By means of the pressure vessel the film tube 3 is supplied with compressed air, so that it is inverted on the reversal head 5 and pressed into the pipe 8 to be repaired. m e pressing in process is continued until the film tube 3 has reached the end of the pipe 8 to be repaired.
m e pressing in pr~cess is regulated and oontrolled by means of the hold-back band 10 fixed to the film hose 3 and shown in fig. 4. m e hold-back band 10 preferably has the same width as the folded up film hose 3. As a result the joint winding of the film hose 3 and the hold-back band 10 onto the drum la in preparation for the repairs is facilitated. By regulating the pressing in process by means of the hold-back band 10, it is ensured that the film hose 3, particularly in the final phase of the pressing in process, is not pressed in too rapidly and ensures that the adhesive is uniformly distributed and the film hose 3 is always reliably pressed onto the inner wall of the pipe 8 to be repaired.
At the end of the pressing in process and as shown in Fig. 5, the film hose 4 is clamped by means of a hose clamp 11.
Simultaneously the side of the clamp hose 4 facing the pipe 8 to be repaired as from the clamping point is supplied in regulated manner by means of a connecting piece 13 with an auxiliary pressure medium in the form of compressed air for compensating pressure losses. The pressure losses can result from leaks at the clamping point, particularly through the also clamped in hold-back band 10.
After clamping the transport hose 15 is separated from the clamp hose 4 by releasing the flange, the hold-back band 10 is separated and the clamp hose 4 is tightly closed by means of a blind flange 12 behind the hose clamp 11, seen from the pipe 8 to be repaired. When the connections are completely tight the auxiliary pressure medium can be stopped. However, to provide security against any possible leaks, it can remain connected to the end of the curing process. The closure of the clamp hose 4 by the blind flange 12 terminates the introduction phase of the film hose 3 into the pipe 8 to be repaired.
Neither personnel, nor further equipment are required for the following curing phase.
`~ j ln order to speed up the adhesive curing process, it is possible to replace the compressed air as the pressure medium by hot water at the end of the pressing in process, it being advantageous to ensure a hot water circuit. For this purpose the hold-back band 10 is constructed as a hose connected by means of openings to the interior of the pressed in film hose 3. The blind flange 12 has water supply and discharge means.
The hose clamp 11 on the clamp hose 4 is opened again for replacing the compressed air by the hot water as the pressure medium and is kept open for obtaining the water circuit.
The inventive apparatus comprises a reversal head 5 fixed to the clamp hose 4. The reversal head 5 has outer clamp pieces 6 and inner clamp pieces 7, by means of which the film hose 3 is fixed. A coupling piece 9, connected to the reversal head 5, is fixed to the pipe 8 to be repaired. For clamping the clamp hose 4, a hose clamp 11 is provided and there is a connecting piece 13 for supplying an auxiliary pressure medium.
A blind flange 12 is used for sealing closure of the clamp hose 4. The pipe 8 to be repaired is provided at the end opposite to that for the introduction of the film hose 3, with an end cap 4, which has venting means. The hold-back band 10 has approximately the same width as the folded film hose 3 and is constructed in the present embodiment as a hose for bringing about a water circuit. The blind flange 12 is provided with a water inflow and outflow.
I
Claims (16)
1. In a method for repairing pipes using a film hose provided with an adhesive, which, via a transport hose, is pressed in an inverting manner by way of a pressure medium into the pipe and is held in a dimensionally stable manner until the adhesive cures, whereby the film hose is fixed in a reversal head by way of outer clamp pieces and inner clamp pieces, the reversal head is connected to a coupling piece fixed to the pipe to be repaired, the film hose is pressed in an inverting manner into the pipe to be repaired by way of a pressure medium, and, at the end of the pressing in process, clamping is carried out outside the pipe to be repaired and an auxiliary pressure medium is supplied to the side of the clamping point facing the pipe as from the clamping point for the purpose of compensating pressure losses, the improvement wherein at the end of the pressing in process a clamp hose, which is firmly connected to the reversal head and through which the film hose is inserted into the reversal head, is clamped by means of a hose clamp and the clamp hose is closed in sealed manner behind the hose clamp, when considered from the pipe to be repaired, by means of a blind flange, after clamping has taken place.
2. The method according to claim 1, wherein said film hose has an inside surface, said inside surface is provided with said adhesive and is wound onto a drum in a movable pressure vessel.
3. The method according to claim 1 or 2, wherein said film hose is fabric-reinforced.
4. The method according to claim 1, wherein the pressing in process is regulated and controlled by way of a hold-back band located in said film hose.
5. The method according to claim 1, wherein said pressure medium is air.
6. The method according to claim 1 or 2, wherein said adhesive is a cold-curing two-component adhesive.
7. The method according to claim 1, wherein the pressure in said film hose is maintained via connecting piece by way of an auxiliary pressure medium until closure of said clamp hose with said blind flange.
8. The method according to claim 1, wherein the pressure in said film hose is maintained via a connecting piece by way of an auxiliary pressure medium until said adhesive has cured.
9. The method according to claim 1, wherein said pressure medium is water.
10. The method according to claim 9, wherein said water is hot water in order to speed up the curing process.
11. In an apparatus for repairing pipes using a film hose provided with an adhesive, with a reversal head having outer clamp pieces and inner clamp pieces for fixing the film hose having a hold-back band and connected to a coupling piece fixed to the pipe to be repaired, and with a connecting piece for supplying an auxiliary pressure medium to the film hose, the improvement wherein a clamp hose, through which the film hose can be inserted into the reversal head, is firmly connected to the reversal head and a hose clamp is provided for clamping the clamp hose and there is a blind flange for the sealing closure of the clamp hose behind the hose clamp, when considered from the pipe to be repaired.
12. The apparatus according to claim 11, wherein an end of the pipe to be repaired opposite to that for introducing said film hose is closed with an end cap.
13. The apparatus according to claim 12, wherein said end cap has venting means.
14. The apparatus according to claim 11 wherein said hold-back band is in the form of a hose for providing a water circuit.
15. The apparatus according to claim 11, wherein said blind flange is provided with a water inflow and outflow.
16. The apparatus according to claim 14, wherein said hold-back band has approximately the same width as said film hose.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4042000.0 | 1990-12-27 | ||
| DE4042000A DE4042000A1 (en) | 1990-12-27 | 1990-12-27 | METHOD FOR RENOVATING PIPELINES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2057341A1 CA2057341A1 (en) | 1992-06-28 |
| CA2057341C true CA2057341C (en) | 1997-03-18 |
Family
ID=6421572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002057341A Expired - Lifetime CA2057341C (en) | 1990-12-27 | 1991-12-10 | Method and apparatus for repairing pipelines |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0493862B1 (en) |
| AT (1) | ATE130920T1 (en) |
| CA (1) | CA2057341C (en) |
| CH (1) | CH684210A5 (en) |
| DE (2) | DE4042000A1 (en) |
| DK (1) | DK0493862T3 (en) |
| ES (1) | ES2082122T3 (en) |
| GR (1) | GR3019078T3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520484A (en) * | 1995-02-03 | 1996-05-28 | Shonan Gosei-Jushi Seisakusho K.K. | Eversion nozzle, and a method for repairing an underground tubular conduit |
| DE102005025597B4 (en) * | 2004-09-20 | 2012-12-27 | Marquardt Kleb-, Dicht- und Beschichtungsstoffe e.K. | Method and device for lining a pipeline |
| FI9742U1 (en) * | 2012-03-08 | 2012-08-08 | Picote Oy Ltd | Throttle device for controlling the air pressure of the coating stock applied to the piping |
| CN108591670A (en) * | 2018-06-29 | 2018-09-28 | 江苏爱索新材料科技有限公司 | A kind of reparation of pipeline no-dig technique liner internal lining pipe fourth contact inflation sealing device and encapsulating method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1002131A (en) * | 1963-05-22 | 1965-08-25 | Wolff & Company Kommanditgesel | Improvements in or relating to apparatus for and method of turning inside out a flexible tube |
| DE1912478A1 (en) * | 1969-03-12 | 1970-10-01 | Bettaque Dipl Ing Sigrid | Adhering synthetics tubes in pipes for corro - sion protection |
| US4077610A (en) * | 1976-01-06 | 1978-03-07 | Senichi Masuda | Method and apparatus for passing an article through an interior of a pipe |
| GB1559323A (en) * | 1977-02-17 | 1980-01-16 | Balfour Beatty Ltd | Application of a fluid-impermeable lining of synthetic material to the internal surface of a passage |
| US4368091A (en) * | 1978-12-29 | 1983-01-11 | Tokyo Gas Co. Ltd. | Method for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure |
| HU204601B (en) * | 1986-02-20 | 1992-01-28 | Trest Juzhvodoprovod | Method for making protective coating on the inner surface of pipings and apparatus for carrying out the method |
| DE3906057A1 (en) * | 1988-07-21 | 1990-01-25 | Hans Mueller | METHOD FOR LINING A PIPE PUT IN GROUND |
-
1990
- 1990-12-27 DE DE4042000A patent/DE4042000A1/en active Granted
-
1991
- 1991-01-10 CH CH48/91A patent/CH684210A5/en not_active IP Right Cessation
- 1991-12-10 CA CA002057341A patent/CA2057341C/en not_active Expired - Lifetime
- 1991-12-18 EP EP91250337A patent/EP0493862B1/en not_active Expired - Lifetime
- 1991-12-18 AT AT91250337T patent/ATE130920T1/en not_active IP Right Cessation
- 1991-12-18 ES ES91250337T patent/ES2082122T3/en not_active Expired - Lifetime
- 1991-12-18 DE DE59106988T patent/DE59106988D1/en not_active Expired - Fee Related
- 1991-12-18 DK DK91250337.2T patent/DK0493862T3/en active
-
1996
- 1996-02-22 GR GR960400486T patent/GR3019078T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE59106988D1 (en) | 1996-01-11 |
| GR3019078T3 (en) | 1996-05-31 |
| DK0493862T3 (en) | 1996-02-12 |
| CH684210A5 (en) | 1994-07-29 |
| ES2082122T3 (en) | 1996-03-16 |
| EP0493862A1 (en) | 1992-07-08 |
| CA2057341A1 (en) | 1992-06-28 |
| ATE130920T1 (en) | 1995-12-15 |
| DE4042000C2 (en) | 1993-02-11 |
| EP0493862B1 (en) | 1995-11-29 |
| DE4042000A1 (en) | 1992-07-02 |
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Effective date: 20121202 |