EP0634229B1 - Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen - Google Patents
Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen Download PDFInfo
- Publication number
- EP0634229B1 EP0634229B1 EP94810410A EP94810410A EP0634229B1 EP 0634229 B1 EP0634229 B1 EP 0634229B1 EP 94810410 A EP94810410 A EP 94810410A EP 94810410 A EP94810410 A EP 94810410A EP 0634229 B1 EP0634229 B1 EP 0634229B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- fluid
- mixture
- liquid
- abrasive
- 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
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000004140 cleaning Methods 0.000 title claims abstract description 50
- 238000000576 coating method Methods 0.000 title claims abstract description 15
- 239000011248 coating agent Substances 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000000203 mixture Substances 0.000 claims abstract description 46
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 5
- 239000000057 synthetic resin Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000003082 abrasive agent Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 230000001133 acceleration Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 206010010774 Constipation Diseases 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0326—Using pulsations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/057—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices being entrained discrete elements, e.g. balls, grinding elements, brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
- B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface
Definitions
- the present invention relates to a method and a device for Interior cleaning and renovation of pipes, especially installed ones Pipelines, by means of a fluid and a jet or Abrasive.
- Such treatment of pipes is in principle from GB-A-1 236 205 known (see preamble of claims 1 and 18).
- a disadvantage with the method described above is that Abrasive at the end of the lines at high speed exit. In order to create a large amount of dust prevent the abrasive in a separate Dedusting system, also because the harmful effects of dust, especially of Quartz dust, is known.
- Another disadvantage of the process according to DE-A-3 235 506 is that the cleaning effect in generally gets worse the longer the pipeline is. This is due to the fact that the grains of sand after one certain route less and less often to the pipe walls bounce and also their impulse directed at the pipe walls presumably decreases.
- a characteristic of the known Sandblasting is also that at the Cleaning a branched piping system Abrasives are always added to the smaller pipe diameter and must be eliminated in the case of the larger pipe diameter, because in the opposite case there would be a risk of constipation. This procedure inevitably shows that the Main pipes of larger diameter several times and excessively to be cleaned, causing undesirable pipe bends Material removal can come.
- the invention aims at a cleaning method and a To propose cleaning composition by the beginning mentioned disadvantages can be largely avoided.
- the procedure should be easier to use than that known methods.
- a device for Implementation of the process in a simple and inexpensive manner Be acquisition.
- the beneficial effect of the liquid additive can be explained with the fact that the liquid quasi as "Braking agent" for the abrasive grains works and therefore one allows more gentle cleaning of pipes.
- the cleaning effect can be increased by a larger one
- the proportion of abrasive grains with a larger diameter is increased will.
- the tubes in any Direction, as well as sector resp. cleaned in sections can be. This means that "defined" pipe sections can be cleaned with a similar diameter and thus a uniform cleaning effect is achieved. This is the risk of undesired material removal or Pipe penetration largely eliminated.
- Another advantage The inventive method is that, in contrast to known prior art no more dedusting system is because no dust is generated.
- the procedure can be used Cleaning of pipes of any kind can be applied especially of installed pipes for liquids or Gases, their cleaning with other methods because of bad Accessibility is difficult.
- Liquid and gas can also be used for pipes in which flammable media is transported will.
- the procedure is suitable due to the gentle Cleaning especially for pipes made of softer or sensitive materials, such as copper or plastic pipes.
- the process compared to the known Dry processes also have the advantage of being cleaned Pipes no longer need to be dried beforehand.
- the abrasive, the liquid and the gaseous fluid are advantageously applied under approximately the same pressure, which is between 2.0265 and 12.159 x10 5 Pa (2 and 12 bar), preferably between 4.053 and 8.106 x10 5 Pa (4 and 8 bar).
- the abrasive can be accelerated to a speed at which it causes the desired abrasive effect.
- the effect depends essentially on the type and possibly the composition of the abrasive, the amount of liquid and the speed of the abrasive.
- an air compressor can be used to generate an excess pressure.
- the high pressure water required can be branched off directly from a high pressure water connection.
- the abrasive, the liquid and the gaseous fluid can also be conveyed through the pipe by applying an overpressure and / or a vacuum.
- the pressure is expediently applied intermittently. This can increase the abrasive effect of the abrasive will.
- the pressure is advantageously set so that the Mixture of abrasive, liquid and gaseous Fluid pulsates in the tube. This also has an improvement the grinding effect. It is appropriate that Direction of the mixture during the cleaning process to reverse at least once. This also allows the pipe to Places to be cleaned in a certain direction lie in a blind spot. In contrast, can the drying process mentioned in the introduction the direction of rotation not be reversed because when cleaning in the direction of Block the pipes from larger to smaller diameters.
- the abrasive used and / or the Liquid circulated and used several times. Thereby may the disposal costs incurred for a Contaminated abrasive / liquid mixture low being held.
- the coating is advantageously done by Suction of a resin plug using a vacuum.
- the other connection points only need can be closed without having to do this like when coating is the case by means of an overprint, for the rest Line system can also be set an overpressure should. If this was not the case with the latter procedure, the resin plug would become uncontrolled in Spread the pipe system.
- a device for performing the method has one Container for holding an abrasive, one a Dosing device or a mixing tube having a dosing valve, which connects the container to a pipe to be cleaned, and at least one feed line and / or Connection point on the container and / or on the mixing tube Feed in at least one gaseous and one liquid Fluids, and means for generating a super and / or Vacuum to the abrasive with the liquid and the swirl and accelerate gaseous fluid.
- This Device is inexpensive and only requires a small one Space requirements.
- a separator is expediently provided, which via a first, a pump line with the Supply lines, respectively. Connection points for the liquid Fluid, and via a second valve-provided line communicates with the pressure vessel. This has the Advantage that the liquid fluid used and Abrasive can be used several times.
- a suitable cleaning composition for Internal cleaning of pipes, especially of installed ones Piping includes 1 volume of abrasive, 1 to 12 Parts by volume, preferably 3 to 7 parts by volume of a liquid and 80 to 3000 parts by volume, preferably 600 to 1,200 Parts by volume of a gaseous fluid (at normal pressure), where the mixture of abrasive, liquid and gaseous fluid by applying an overpressure and / or a vacuum a pipe to be cleaned is sent.
- This composition is particularly effective and allows gentle cleaning of Pipes. By cleaning with this wet or damp The mixture is neither predrying nor vacuuming at the end of the pipe required. The mixture filling the pipe ensures uniform all-round cleaning without the risk of Penetration of pipe bends. Damage is also caused by static charges avoided.
- the liquid fluid water and the gaseous one are advantageous Fluid air. It is also advantageous if the abrasive is a mixture of different grain sizes. It has namely shown that the cleaning effect is the better, ever is larger than the grain diameter. A mix of different Grain sizes has the advantage of having a good cleaning effect can be achieved with little risk of constipation. In this Context should not go unmentioned that use of grain sizes of e.g. 6 mm in the conventional and dry cleaning methods mentioned at the beginning would be unthinkable, since such grain sizes inevitably damage the would lead pipes.
- an inhibitor and / or to the mixture
- Add cleaning additives It can also be a Binders are added so that a paste is formed, that can be pushed through the pipes.
- a device 11 for performing the inventive 1 has a pressure vessel 13 for Inclusion of an abrasive 15, lines 17, 19, 20 for Supply of a liquid and a gaseous fluid in the Pressure vessel 13 and in a mixing tube 21 which the Pressure vessel 13 and a pipe 23 to be cleaned connects, as well as pressure medium, e.g. an air compressor 25, for generation an overpressure.
- the cleaning effect in the deposits having tube 23 is achieved in that a Abrasive 15 and a liquid fluid with the gaseous Fluid swirls, accelerates and is sent through tube 23 becomes. It goes without saying that the gaseous and the liquid fluid is at approximately the same pressure need to prevent the two fluids used to displace each other.
- line 17 the gaseous fluid, and through the lines 19, 20 the liquid fluid supplied.
- the liquid fluid e.g. Water from a high pressure water connection is already under pressure and can be shut off by valve 27.
- a Pressure reducer 29 allows the setting of a certain one Pressure.
- a portion of the liquid Fluids, usually water, are fed into the mixing tube 21, the rest is through line 20 in the lower part of the Container 13 passed.
- the water led into the container 13 has the purpose of wetting the abrasive, so that it from the container 13 can be rinsed.
- line 20 can another high pressure pump (not shown) is provided be.
- the line 17 through which a compressed gas in the Usually air that is supplied is at the outlet of the container 13 the mixing tube 21 connected.
- the line 17 has a Shut-off valve 16 and a pressure regulator 18.
- the Abrasive 15 can by an adjustable valve 32 or a flap can be passed into the mixing tube 21. Will that Valve 32 opened, so arises in pressure vessel 13 practically instantaneously the same pressure as in the mixing tube 21 a.
- Fig.2 shows a typical installation for cleaning an over pipeline system 31 extending over several floors of an apartment building.
- the device of Fig.2 differs from that of Fig.1 essentially only in that means are provided to the abrasive and to use the water used several times.
- the presentation is therefore, as far as possible and expedient, the same reference numbers are used in FIG. 2 as in FIG. 1.
- a separator 33 e.g. a Cyclone separator, provided, in which the from the Pipe system 31 with emerging cleaning composition the contaminants.
- the separator 33 stands via a valve 35 or a slide with the pressure container 13 in connection. Through the valve 35, the remote Abrasive can be drained back into the pressure vessel 13.
- a line 37 also allows the excess water of the To pass separator 33 into a water tank 39.
- the Water tank 39 mainly has a storage function, can however be used as a further separator. From Water tank 39 can the water via a line 41 and a Pump 43 can be fed back into lines 19, 20.
- a drain valve 45 on the bottom, which Can serve cleaning purposes or the supply of water.
- the piping system 31 to be cleaned has a large number of water connection points 47, which are located on different Floors.
- the piping various Floors are interconnected by a main line 49 connected.
- the cleaning device 11 ' is by means of Flow lines 22 and return lines 51 to the Water connection points 47 connected.
- the supply lines 22 serve to supply the cleaning composition, and the return lines 51 of the return of the Cleaning composition in the container 33. It has proven to be Proven to be useful at adjacent water connection points 47 alternately flow lines 22 and return lines 51 to be connected. This has the advantage that Pipe system 31 can be cleaned in sections.
- a distributor battery 53 intended. There are a large number of this distributor battery 53 of supply lines 22, advantageously in blocks, can be connected.
- a connection battery (not shown) to which the return lines are provided 51 can be connected in blocks. With this design you can the supply lines 22 and return lines 51 each quickly either on the separator 33 or on the distributor battery 53 be connected. This allows the running direction of the Quickly turn the cleaning composition over by turning the Connection flanges can be changed.
- the pre and Return lines 22, 51 point to their respective Shut-off valves 55 on the water connection-side ends.
- the cleaning process can be used as follows: In the pressure vessel 13, an abrasive such as quartz sand is filled with water in a suitable ratio.
- the output side of the mixing tube 21 is connected to a pressure jet hose or flow line 22 and the line pipe 23 to be cleaned or inserted into the line pipe.
- the pressure e.g. about 5,573 x10 5 Pa or 5 bar
- the pressure e.g. about 5,573 x10 5 Pa or 5 bar
- compressed air e.g. 4,053 x10 5 Pa or 4 bar
- the mixture is carried away and hurled through the conduit.
- At the end of the line it can exit directly in a separator container to recover the blasting media. Suction at the end of the line is not necessary.
- the conveying direction can then be switched on or off reversed several times to make blind spots, e.g. Pipe fittings, to reach in both directions, because a jamming of the Sandes at the transition to smaller pipe cross sections through the Water as a means of transport is avoided.
- blind spots e.g. Pipe fittings
- shut-off valves 55 For cleaning, two adjacent shut-off valves 55 are now opened and the pipe section between the two water connections is first appropriately rinsed with water (approx. 50 l / min, 5.5729 - 6.0795 x 10 5 Pa or 5 - 6 bar).
- the next step is to convey the abrasive with compressed air and water through the pipe section to be cleaned. Approx. 8 - 10 Nm 3 (normal cubic meters) of air are blown into the mixing tube 21 under a pressure of approximately 6.0795 - 8.106 x10 5 Pa (6 to 8 bar) per minute. About 3 liters of water per minute (5.5729 - 8.103 x10 5 Pa or 5.5 to 8 bar) are added to the abrasive in the pressure vessel 13 via line 20.
- high pressure water (30 to 80 l / min; 5.5729 - 8.103 x10 5 Pa or 5.5 to 8 bar) is added to the abrasive / water / air mixture.
- the abrasive / water mixture is advantageously accelerated to a speed of approximately 1 to 10 m / s by the compressed air.
- the air used flows through the pipe at a speed between approximately 30 and 100 m / s. In a specific case (pipe 3/8 "to 5/4") speeds of approx. 3 m / s for the abrasive and the liquid, and approx. 60 m / s for the air were calculated.
- a particularly efficient cleaning effect can be achieved be when a pulsating in the supply lines 22 or vibrating flow.
- This "pulsation" can achieved by varying the air pressure and / or water pressure will.
- this pulsation can also be caused by the Pump 43 are amplified.
- the pump 43 can e.g. a compressed air powered Water high pressure pump.
- the cleaning of the Pipe section with the abrasive takes about 5 minutes.
- the supply and return lines 22 and 51 exchanged, i.e. the flow lines 22 are on the separator 33 and the return lines 51 connected to the valve manifold 53, so the direction of the cleaning composition is just the opposite.
- the process described above is repeated for all pipe sections until the whole pipe system 31 is cleaned.
- the Flow line or delivery hose with a special Nozzle head and inserted into the pipes.
- the nozzle outlet openings are advantageously to the rear (with regard to the direction of conveyance), which is all-round Centrifuging the mixture under pressure against the pipe walls and at the same time promotes the forward movement of the hose.
- the Mixing ratio water / abrasive can be the pipe diameter and the degree of incrustation from "wet blasting" to "Wet rays" can be adjusted so that an optimal and gentle interior cleaning is achieved.
- the rinse water can be a Passivation agent can be added, which is the preparation of Flash rust on the bare metal inner surfaces during prevent the drying process.
- a suitable alkaline passivating agent is e.g. the product 31.00 the Company CM, CH-5612 Villmergen.
- the rinse water can also be heated to speed up the subsequent drying process.
- the piping system After rinsing / passivation, the piping system preferably dried with preheated air and the lines are warmed up to a temperature of 20 to 40 ° C.
- the Heated air can come from an air manifold at the same time all water connections are distributed and the air outlet through the line 49 take place.
- the drying process takes approx. 30 up to 60 minutes.
- the required amount of a synthetic resin preferably an epoxy resin
- each pipe section approximately 80 g per running meter of a 1/2 "pipe
- the water connection is installed, blown into the pipes by means of compressed air.
- the pressure and the amount of air must be adapted to the pipe diameter and the viscosity of the resin (eg overpressure coating: 2,533 x10 5 Pa or 2.5 bar, 5 to 8 Nm 3 , pipe diameter: 3 / 8 "to 5/4").
- the setting of the pressure can be done beforehand without resin.
- a second coating method is one on the whole Piping system calculated amount of synthetic resin at the most distant water connection and by means of the Blow compressed air to the nearest, closer water connection.
- the Arrival of the synthetic resin at the next water connection can e.g. through a plugged on the water connection transparent tube can be observed. Once the resin appears, the same is blown back and to the next one Water connection promoted.
- a third and very simple coating method is by means of a vacuum pump to suck the coating material.
- the negative pressure is applied to the main line or sucked and the corresponding amount of resin with each water connection Open a valve entered.
- the advantage of this method consists in the fact that there are no plugs on blind lines etc. can form and no blockages occur. This The method can be advantageous, particularly in the case of ring lines many water connections and outlets can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cleaning In General (AREA)
- Detergent Compositions (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
- Fig.1
- eine vereinfachte, schematische Darstellung der erfindungsgemässen Vorrichtung,
- Fig.2
- eine typische Installation zur Reinigung eines Rohrsystems, z.B. eines Mehrfamilienhauses, mit einer Vorrichtung mit Fluid- und Abrasivmittelrückführung.
Claims (21)
- Verfahren zur Sanierung von Rohren eines Rohrleitungssystems mit einer Mehrzahl von Anschlussstellen, bei welchem zur Entfernung von Ablagerungen ein Abrasivmittel mit einem flüssigen Fluid benetzt und das Flüssigkeit/Abrasivmittel-Gemisch durch ein gasförmiges Fluid verwirbelt und beschleunigt und durch das zu reinigende Rohrleitungssystem gefördert wird, dadurch gekennzeichnet, dass zuerst das Rohrleitungsystem mit Flüssigkeit gefüllt wird, dass anschliessend das benetzte Abrasivmittel dosiert in ein Mischrohr (21) abgelassen oder gedrückt wird, wo dem Gemisch weitere Flüssigkeit zugeführt wird und dass damit das mit Flüssigkeit gefüllte Rohrleitungssystem zwischen zwei Anschlussstellen sektoren- respektive abschnittweise gereinigt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Abrasivmittel/Flüssigkeitsgemisch mit einer Geschwindigkeit von ungefähr 1m/s bis 10 m/s durch das Rohr oder die Rohre befördert wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Abrasivmittel, das flüssige und das gasförmige Fluid unter ungefähr gleichem Druck, welcher zwischen 2.0265 und 12.159 x105 Pa (2 und 12 bar), vorzugsweise zwischen 4.053 und 8,106 x105 Pa (4 und 8 bar) liegt, beaufschlagt werden.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Druck intermittierend angelegt wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Druck so eingestellt wird, dass das Gemisch aus Abrasivmittel, dem flüssigen und dem gasförmigen Fluid im Rohr pulsiert.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Laufrichtung des Gemischs während des Reinigungsprozesses wenigstens einmal umgekehrt wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Abrasivmittel, das flüssige und das gasförmige Fluid durch Anlegen eines Über- und/oder eines Unterdrucks durch das Rohr gefördert wird
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das eingesetzte Abrasivmittel und oder die Flüssigkeit im Kreis geführt und mehrfach verwendet wird.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das gereinigte Rohr trockengeblasen und anschliessend mit einem Kunststoff beschichtet wird.
- Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Beschichtung durch Ansaugen eines Kunstharzpfropfens mittels eines Unterdruckes geschieht.
- Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das gereinigte Rohr mit einer zweiten Kunststoffschicht versehen wird, nachdem die erste Schicht wenigstens bereits teilweise polymerisiert ist.
- Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass sich das abrasive Gemisch auswobei die Mischung aus Abrasivmittel, flüssigem und gasförmigem Fluid durch Anlegen eines Ueber- und/oder eines Unterdruckes durch ein zu reinigendes Rohr geschickt wird.1 Volumenteil Abrasivmittel,1 bis 12 Volumenteilen, vorzugsweise 3 bis 7 Volumenteilen eines flüssigen und80 bis 3000 Volumenteilen, vorzugsweise 600 bis 1'200 Volumenteilen eines gasförmigen Fluids (bei Normaldruck) zusammengesetzt,
- Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das flüssige Fluid Wasser und das gasförmige Fluid Luft ist.
- Verfahren nach einem der Ansprüche 12 oder 13, dadurch gekennzeichnet, dass die Mischung Korngrössen von bis zu ungefähr 10 mm, vorzugsweise bis ungefähr 6 mm aufweisen kann.
- Verfahren nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass dem Gemisch ein Bindemittel beigemischt ist.
- Verfahren nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass Vor- und Rücklaufleitungen (22,51) jeweils alternierend an benachbarten Wasseranschlussstellen (47) des Rohrleitungssystems (31) angeschlossen werden und dass jeweils eine Reinigung des zwischen zwei benachbarten Anschlussstellen liegenden Rohrabschnitts erfolgt. (10/letzter A. und .....)
- Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die Vor- und Rücklaufleitungen (22,51) jeweils blockweise an die Reinigungsvorrichtung angeschlossen werden und dass die Laufrichtung der Reinigungszusammensetzung umgedreht wird, indem die Vor- und Rücklaufleitungen (22,51) blockweise gewechselt werden. (9/2.Abschnitt)
- Vorrichtung zur Sanierung von Rohren mit einem Behälter (13) zur Aufnahme eines Abrasivmittels, einem Mischrohr (21), welches über ein als Dosiereinrichtung oder Dosierventil (32) ausgebildetes Absperrmittel mit dem Behälter (13) in Verbindung steht und an wenigstens ein zu reinigendes Rohr anschliessbar ist, einer Pumpe (43), wenigstens einer am Behälter (13) vorgesehenen Zuführungsleitung (20) zur Einspeisung eines flüssigen Fluids, einer am Mischrohr vorgesehenen Zuführungsleitung (17) zur Einspeisung eines gasförmigen Fluids und mit dieser Zuführungsleitung (17) in Verbindung stehenden Druckmitteln zur Beschleunigung des gasförmigen Fluids, gekennzeichnet durch eine weitere am Mischrohr (21) vorgesehene Zuführungsleitung (19) zur Einspeisung eines flüssigen Fluids wobei das zu reinigende Rohr Teil eines Rohrleitungssystems mit einer Mehrzahl von Anschlußstellen ist.
- Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, dass ein Abscheider (33) sowie Vor- und Rücklaufleitungen (22,51) vorgesehen sind, wobei die Vorlaufleitungen (22) der Zuführung der Reinigungszusammensetzung zu den Wasseranschlussstellen (47) und die Rücklaufleitungen (51) der Rückführung der Reinigungszusammensetzung von den Wasseranschlussstellen (47) in den Abscheider (33) dienen.
- Vorrichtung nach Anspruch 19, dadurch gekennzeichnet, dass der Abscheider (33) über eine erste, eine Pumpe (43) aufweisende Leitung (41) mit den Leitungen (19) und/oder (20) für das flüssige Fluid, und über eine zweite ein Ventil (35) aufweisende Leitung mit dem Behälter (13) in Verbindung steht, und dass die Rücklaufleitungen mit dem Abscheider (33) und die Vorlaufleitungen (22) mit dem Mischrohr in Verbindung stehen.
- Vorrichtung nach Anspruch 19 oder 20, gekennzeichnet durch eine Verteilbatterie (53) am Mischrohr (21) und eine Anschlussbatterie am Abscheider (33), an welche die Vor- und Rücklaufleitungen (22,51) austauschbar anschliessbar sind
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2079/93 | 1993-07-12 | ||
| CH207993 | 1993-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0634229A1 EP0634229A1 (de) | 1995-01-18 |
| EP0634229B1 true EP0634229B1 (de) | 1998-10-07 |
Family
ID=4225415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94810410A Expired - Lifetime EP0634229B1 (de) | 1993-07-12 | 1994-07-12 | Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0634229B1 (de) |
| AT (1) | ATE171886T1 (de) |
| DE (1) | DE59407036D1 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857436B2 (en) | 1997-06-23 | 2005-02-22 | Princeton Trade & Technology, Inc. | Method of cleaning passageways using a mixed phase flow of a gas and a liquid |
| US6945257B2 (en) | 1997-06-23 | 2005-09-20 | Princeton Trade & Technology | Method for cleaning hollow tubing and fibers |
| WO2005099918A1 (en) * | 2004-04-16 | 2005-10-27 | Normand Lauzon | Cleaning method and apparatus |
| US7862660B2 (en) | 2007-01-12 | 2011-01-04 | Princeton Trade & Technology, Inc. | Device and method for fluid dynamics cleaning of constrained spaces |
| US8696823B1 (en) * | 2002-08-28 | 2014-04-15 | Pipe Restoration Technologies, Llc | Methods and systems for abrasive cleaning and barrier coating/sealing of pipes |
| US9492853B2 (en) | 2008-09-30 | 2016-11-15 | Olympus Corporation | Method for composition for cleaning tubular systems employing moving three-phase lines |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4430334A1 (de) * | 1994-08-29 | 1996-03-07 | Gevi Gmbh | Verfahren zur Sanierung von Rohrleitungen |
| DE19513150C1 (de) * | 1995-04-07 | 1996-08-29 | Aqua Protect Ges Fuer Wasserle | Verfahren zum Reinigen und Beschichten von insbesondere zur Wasserführung bestimmten Rohrleitungen oder Rohrleitungssystemen |
| DE19701010A1 (de) * | 1997-01-14 | 1998-07-16 | Josef Stoeckl | Verfahren zur Sanierung der Innenwände festverlegter Rohrleitungen |
| WO1998058768A1 (de) * | 1997-06-20 | 1998-12-30 | Gevi Gesellschaft Für Entwicklung Und Vertrieb Industrieller, Zerstörungsfreier Und Umweltfreundlicher Verfahrenstechniken Zur Innensanierung Von Rohrleitungen Mbh | Verfahren zur sanierung von rohrleitungen mittels trockeneis |
| US6027572A (en) | 1997-06-23 | 2000-02-22 | Princeton Trade And Technologt, Inc | Cleaning method for removing biofilm and debris from lines and tubing |
| JP3855213B2 (ja) * | 1997-08-25 | 2006-12-06 | 日本ペイント株式会社 | 分散方法及び分散機 |
| DE19745642C5 (de) * | 1997-10-15 | 2004-12-02 | Michael Schaaf | Verfahren zur Sanierung von zur Wasserführung bestimmten inkrustierten Rohrleitungen durch Reinigung und Beschichtung |
| NO307453B1 (no) | 1998-06-29 | 2000-04-10 | Intel Sampling As | Fremgangsmõte og anordning for behandling i form av fjerning eller põføring av belegg põ innvendige flater i et lukket fluidsystem |
| EP0987085A1 (de) * | 1998-08-21 | 2000-03-22 | Elsen Rohrsanierung Gesellschaft zur Entwicklung und Anwendung von Systemen für Umwelt- und Sanierungstechniken mbH | Verfahren zur Reinigung von Rohrleltungen |
| FI108995B (fi) * | 1998-11-18 | 2002-05-15 | Taifun Engineering Oy Ltd | Menetelmä ja laitteisto teollisuusputkistojen puhdistamiseksi |
| DE19909377C2 (de) * | 1999-03-04 | 2002-03-21 | Kurt Hoerger | Verfahren und Vorrichtung zum Schneiden und Abtragen von Hindernissen und Ablagerungen in nichtbegehbaren und begehbaren Rohren oder Kanälen |
| US6739956B2 (en) * | 2001-10-30 | 2004-05-25 | Valiant Corporation | Apparatus for cleaning engine block passages |
| US8399813B2 (en) | 2002-08-28 | 2013-03-19 | Pipe Restoration Technologies, Llc | Portable heating apparatus for heating interior piping systems |
| US9611973B2 (en) | 2002-08-28 | 2017-04-04 | Pipe Restoration Technologies, Llc | Process for coating the interior surface of water service lines |
| US7160574B1 (en) | 2002-08-28 | 2007-01-09 | Pipe Restoration Technologies, Llc | Barrier coating corrosion control methods and systems for interior piping systems |
| US7858149B2 (en) | 2002-08-28 | 2010-12-28 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside piping systems |
| US8524320B1 (en) | 2002-08-28 | 2013-09-03 | Pipe Restoration Technologies, Llc | Process for coating the interior surface of water service lines |
| US6739950B1 (en) | 2002-12-09 | 2004-05-25 | Joerg Kruse | Pipe renovating system and method |
| WO2004078373A1 (en) * | 2003-01-13 | 2004-09-16 | The Boeing Company | Foam pellet catcher and retriever and method implementing the same |
| US7348039B2 (en) | 2005-12-21 | 2008-03-25 | Jak Aklian | Method of making a newly installed plumbing system renewable |
| EP1872877B1 (de) * | 2006-06-29 | 2010-07-28 | Fluidor Equipment B.V. | Verfahren und Vorrichtung zum Reinigen von Röhren |
| ES2430202T3 (es) * | 2007-01-04 | 2013-11-19 | Pipe Restoration Technologies, Llc | Métodos y sistemas para recubrir y sellar el interior de sistemas de tuberías |
| US8402637B2 (en) | 2008-11-04 | 2013-03-26 | Chief Automotive Technologies, Inc. | Vehicle fixture with alignment target |
| DE102010013167A1 (de) * | 2010-03-27 | 2011-09-29 | Hammann Gmbh | Verfahren und Vorrichtung zur Entfernung von Ablagerungen und/oder Biofilmen in Wasser- oder Produktleitungen oder Rohrleitungssystemen |
| PT2674228E (pt) | 2012-06-11 | 2014-10-20 | Hammann Gmbh | Processo para a remoção de depósitos e/ou de biofilmes numa tubagem através de impulsos de pressão moduladores |
| HU229851B1 (en) * | 2013-04-16 | 2014-10-28 | Duna Kut Kft | Method and device for cleaning the inner surface of pipelines |
| EP2815816B1 (de) | 2013-06-20 | 2017-08-02 | Hammann GmbH | Verfahren zur Optimierung der Reinigung von flüssigkeitsdurchströmten Leitungen oder Anlagen |
| US20150165495A1 (en) * | 2013-12-16 | 2015-06-18 | Terrell H. Yon, III | Abrasive cleaning of inner cooled generator coils |
| DE102017119610A1 (de) * | 2017-08-26 | 2019-03-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Erzeugung einer Folge von Strahlabschnitten eines diskontinuierlichen, modifizierten Flüssigkeitsstrahls |
| DE102020122674A1 (de) * | 2020-08-31 | 2022-03-03 | HOGATRON Deutschland GmbH | Verfahren und Vorrichtung zur Reinigung von Getränkeleitungen einer Schankanlage |
| IT202200009122A1 (it) * | 2022-05-04 | 2023-11-04 | Co In Service S R L | Apparato per il trattamento di una tubazione |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1236205A (en) * | 1967-08-17 | 1971-06-23 | Abrasive Dev | Improvements in or relating to abrading |
| US3914815A (en) * | 1974-09-20 | 1975-10-28 | Fuji Seiki Machine Works | Pipe inside cleaning device |
| US4243699A (en) * | 1977-12-20 | 1981-01-06 | Gibson Jack Edward | Method of powder coating the inside of pipes with a continuous film of plastic material |
| FR2495028A1 (fr) * | 1980-12-01 | 1982-06-04 | Alsthom Atlantique | Element de nettoyage et installation de nettoyage mettant en oeuvre cet element |
| JPS5918635B2 (ja) * | 1981-07-22 | 1984-04-28 | 出光興産株式会社 | 分岐配管における管内付着物の除去方法 |
| JPS58206371A (ja) * | 1982-05-25 | 1983-12-01 | Nippon Plant Service Center:Kk | パイプ内壁のクリ−ニング方法 |
| CH674172A5 (de) * | 1987-07-09 | 1990-05-15 | Intertechno Ag | |
| DE3803410A1 (de) * | 1988-02-05 | 1989-08-17 | Karl Mueller | Verfahren zur reinigung und beschichtung von zur wasserfuehrung bestimmten rohrleitungen |
| JPH01288385A (ja) * | 1988-05-17 | 1989-11-20 | Shinichi Matsuda | 管の清掃方法及び装置 |
| DE4119947A1 (de) * | 1991-06-18 | 1992-12-24 | Joachim Pflamm | Verfahren und einrichtung zur beseitigung von ablagerungen in wasserleitungen |
-
1994
- 1994-07-12 AT AT94810410T patent/ATE171886T1/de not_active IP Right Cessation
- 1994-07-12 DE DE59407036T patent/DE59407036D1/de not_active Expired - Fee Related
- 1994-07-12 EP EP94810410A patent/EP0634229B1/de not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857436B2 (en) | 1997-06-23 | 2005-02-22 | Princeton Trade & Technology, Inc. | Method of cleaning passageways using a mixed phase flow of a gas and a liquid |
| US6945257B2 (en) | 1997-06-23 | 2005-09-20 | Princeton Trade & Technology | Method for cleaning hollow tubing and fibers |
| US7367346B2 (en) | 1997-06-23 | 2008-05-06 | Princeton Trade & Technology, Inc. | Method for cleaning hollow tubing and fibers |
| US8696823B1 (en) * | 2002-08-28 | 2014-04-15 | Pipe Restoration Technologies, Llc | Methods and systems for abrasive cleaning and barrier coating/sealing of pipes |
| WO2005099918A1 (en) * | 2004-04-16 | 2005-10-27 | Normand Lauzon | Cleaning method and apparatus |
| AU2005232788B2 (en) * | 2004-04-16 | 2010-09-16 | Normand Lauzon | Cleaning method and apparatus |
| US7862660B2 (en) | 2007-01-12 | 2011-01-04 | Princeton Trade & Technology, Inc. | Device and method for fluid dynamics cleaning of constrained spaces |
| US9492853B2 (en) | 2008-09-30 | 2016-11-15 | Olympus Corporation | Method for composition for cleaning tubular systems employing moving three-phase lines |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE171886T1 (de) | 1998-10-15 |
| DE59407036D1 (de) | 1998-11-12 |
| EP0634229A1 (de) | 1995-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0634229B1 (de) | Verfahren, Zusammensetzung und Vorrichtung zur Innenreinigung und Beschichtung von Rohrleitungen | |
| EP1890823B1 (de) | Sprühdüse, sprühanordnung und verfahren zum betreiben einer sprühdüse und einer sprühanordnung | |
| DE202006000969U1 (de) | Reinigungsmolch | |
| AT405308B (de) | Verfahren und vorrichtung zum reinigen einer rohrleitung mit fallstrang | |
| EP0078960B1 (de) | Verfahren und Vorrichtung zum Beleimen von teilchenförmigem Gut,. insbesondere von Spänen | |
| EP0490117A1 (de) | Verfahren zum Reinigen einer Rohrleitung | |
| DE102010013167A1 (de) | Verfahren und Vorrichtung zur Entfernung von Ablagerungen und/oder Biofilmen in Wasser- oder Produktleitungen oder Rohrleitungssystemen | |
| EP0027980B1 (de) | Verfahren und Einrichtung zur Spülung, Reinigung, Desinfektion und Innenbeschichtung einer Rohrleitung, insbesondere einer Wasserleitung in einem Neubau | |
| DE2417580A1 (de) | Verfahren und vorrichtung zum richten eines feste abriebpartikel enhaltenden fluessigkeitsstrahls auf die oberflaeche eines werkstuecks | |
| DE19701010A1 (de) | Verfahren zur Sanierung der Innenwände festverlegter Rohrleitungen | |
| DE10358253B4 (de) | Verfahren zur Sanierung von inkrustierten Wasserrohrleitungen mit mehreren Leitungsabschnitten | |
| DE4444405A1 (de) | Spritzbetonstrahler | |
| WO1985004614A1 (fr) | Procede et appareil pour soumettre des pieces, des elements de construction ou analogues a un jet d'air charge de particules granuleuses | |
| DE10323298B4 (de) | Verfahren zur Sanierung von inkrustierten Wasserrohrleitungen | |
| DE4420579A1 (de) | Verfahren zum Reinigen von Rohrleitungen | |
| DE102011055772A1 (de) | Vorrichtung und Verfahren zum Nassstrahlen von Strahlgut | |
| DE4201860C1 (de) | ||
| DE10152057C1 (de) | Verfahren zum Reinigen von Rohrleitungen, insbesondere Abwasserleitungen und eine entsprechende Einrichtung dazu sowie ein Reinigungsmittel für die Reinigung | |
| DE651289C (de) | Verfahren zum Reinigen der Innenwandung von in Gebaeuden verlegten Wasserleitungen | |
| DE10311137B4 (de) | Strahlgerät | |
| EP0942803A1 (de) | Einrichtung zum strahlen mit trockenem und feuchtem strahlmittel | |
| DE4012435A1 (de) | Feuchtsandstrahler | |
| DD158617A1 (de) | Verfahren und einrichtung zur behandlung von hohlkoerpern,insbesondere rohren | |
| DE1601298C (de) | Abgasreiniger mit Einfuhrung des Abgases in einen Flüssigkeit enthalten den Behalter | |
| DE4436765C2 (de) | Verfahren und Vorrichtung zur Reinigung von Flüssigkeitsbehältern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE ES FR GB IT LI NL |
|
| 17P | Request for examination filed |
Effective date: 19950712 |
|
| 17Q | First examination report despatched |
Effective date: 19960326 |
|
| APAB | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPE |
|
| APAB | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPE |
|
| APBJ | Interlocutory revision of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOS IRAPE |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE ES FR GB IT LI NL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19981007 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19981007 |
|
| REF | Corresponds to: |
Ref document number: 171886 Country of ref document: AT Date of ref document: 19981015 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: DR. CONRAD A. RIEDERER PATENTANWALT |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19981008 |
|
| REF | Corresponds to: |
Ref document number: 59407036 Country of ref document: DE Date of ref document: 19981112 |
|
| ET | Fr: translation filed | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020715 Year of fee payment: 9 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030712 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030905 Year of fee payment: 10 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20030712 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20040728 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050712 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050712 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050712 Year of fee payment: 12 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20070330 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060731 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: RIEDERER HASLER & PARTNER PATENTANWAELTE AG |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20100622 Year of fee payment: 17 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110731 |