WO2012095414A1 - Dish for a pipe-cleaning tool - Google Patents
Dish for a pipe-cleaning tool Download PDFInfo
- Publication number
- WO2012095414A1 WO2012095414A1 PCT/EP2012/050298 EP2012050298W WO2012095414A1 WO 2012095414 A1 WO2012095414 A1 WO 2012095414A1 EP 2012050298 W EP2012050298 W EP 2012050298W WO 2012095414 A1 WO2012095414 A1 WO 2012095414A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circular
- pipe
- cleaning tool
- cup
- central core
- 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.)
- Ceased
Links
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
- B08B9/04—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
- B08B9/0554—Diablo shaped pigs
-
- 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
- B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup shaped pigs
Definitions
- the present invention relates to pipe cleaning tool cups, such as pipelines for the transport of fluids. It also relates to a pipe cleaning tool comprising at least one such cup.
- the pipes or pipelines referred to in this description are used for the transport of fluids, such as oil, kerosene, or gases such as hydrogen and oxygen. These pipes are for example provided between a well and a platform, or for the loading of fluids, for example between a platform and a boat. For safety reasons, these lines must be checked, monitored and cleaned regularly.
- cleaning tools that move in the pipes, and which include an axis on which are mounted different modules fulfilling different functions.
- One of these modules comprises at least one circular cup dimensioned to rub against the wall of the pipe to ensure sealing so that the fluid used can not bypass the cup. Indeed, in this case, the pressure of the fluid to advance the cleaning tool may no longer be sufficient so that the tool can be slowed or stopped in the pipe.
- the cup has the function of scraping the wall of the pipe in order to scrape deposits on the wall.
- An object of the present invention is therefore to overcome this disadvantage, by providing a cup of a pipe cleaning tool, and more particularly a bidirectional tool, to maintain the seal between the pipe and the tool and to work at the same pressure regardless of the direction of movement of the cleaning tool in the pipe.
- a conduit cleaning tool cup having a volume defined by two substantially parallel circular walls and a peripheral circular band connecting said circular walls.
- each of said circular walls comprises a central core having an orifice for the passage of an axis of the tool, a circular intermediate zone surrounding the central core and a circular outer edge surrounding said intermediate zone and bound to the peripheral circular band, said intermediate zone being arranged to define a groove constituting a more deformable zone than the central core and the outer edge.
- the intermediate zone can be deformed so that the cup occupies the entire section of the pipe so as to ensure sealing.
- the present invention also relates to a pipe cleaning tool comprising an axis, comprising at least one cup as defined above mounted on said axis.
- - Figures 1 to 3 respectively show a top view, a sectional view along the axis AA and an isometric view of a first variant of the cup according to the invention
- - Figures 4 to 6 respectively show a top view, a sectional view along the axis AA and an isometric view of a second variant of the cup according to the invention
- FIG. 7 represents an isometric view of a module of a cleaning tool comprising cups according to the invention.
- FIG. 1 to 3 there is shown a first variant of a cup according to the invention.
- Said cup 10 has a volume defined by two circular walls 1 and 2, substantially parallel and a circular peripheral band 3 connecting said circular walls 1 and 2.
- the cup 10 is intended to be mounted on an axis 4 of a module 5 of a pipe cleaning tool by means of fixing means provided for this purpose. These fixing means are known to those skilled in the art and will not be described in more detail. Module 5 is connected to other modules to form a complete cleaning tool.
- each of said circular walls 1, 2 of the cup 10 comprises:
- a central core 6 having an orifice 6a for the passage of the axis 4 of the cleaning tool
- Said intermediate zone 8 is arranged to define a groove constituting a more deformable zone than the central core 6 and the outer rim 12.
- the two walls 1 and 2 are arranged so that the orifices 6a are aligned for the passage of the axis 4 of the tool.
- the circular walls 1 and 2 are preferably symmetrical with respect to a transverse plane of the cup 10. It is obvious that the walls 1 and 2 may not be symmetrical, the presence of the groove being however respected. But symmetry is better to reduce manufacturing costs.
- the volume defined by the circular walls 1, 2 and the peripheral circular band 3 is full, with the exception of the orifice for the passage of the axis 4 of the cleaning tool. .
- the central core 6 has a height less than that of the outer edge 12.
- the central core 6 has a height greater than that of the outer edge 12. This allows the central core 6 to be used as a spacer.
- the cup according to the invention has a diameter greater than that of the pipe, preferably greater than 2% to 8%, and more preferably greater than 3 to 5% than that of the pipe.
- the cup is made of a polymeric material, such as polyurethane.
- the circular band 3 is preferably perpendicular to the circular walls 1 and 2.
- the circular band 3 can be molded to create a rougher surface.
- the present invention also relates to a pipe cleaning tool comprises at least one cup as described above.
- the number of cups is adapted according to the pipe to be treated.
- the cup according to the invention is particularly effective for bidirectional pipe cleaning tools.
- the cup When using the cleaning tool in one direction, the cup, larger than the pipe, tilts at an angle due to the pressure of the fluid exerted on the circular wall 1, while remaining in contact with the wall of the pipe to maintain the seal.
- the cup When the tool is returned in the other direction, the cup retains substantially the same inclination.
- the pressure of the fluid which is then exerted on the circular wall 2 causes a deformation at the intermediate zone 8 so that the cup is deformed to continue to occupy the entire section of the pipe.
- the seal is preserved and the work of the tool can be done at the same pressure as in the original direction.
- the cup according to the invention can be used on all pipe cleaning tools suitable for cleaning pipelines, but also loading lines, risers, etc.
- the tool can also be used as product separation pistons in a pipeline.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
Description
Description Description
COUPELLE D'OUTIL DE NETTOYAGE DE CONDUITE Domaine technique DRIVER CLEANING TOOL CUP Technical Area
[0001] La présente invention se rapporte aux coupelles d'outil de nettoyage de conduite, telle que les pipelines pour le transport de fluides. Elle concerne également un outil de nettoyage de conduite comprenant au moins une telle coupelle. The present invention relates to pipe cleaning tool cups, such as pipelines for the transport of fluids. It also relates to a pipe cleaning tool comprising at least one such cup.
Etat de la technique State of the art
[0002] Les conduites ou les pipelines visés dans la présente description, sont utilisés pour le transport de fluides, tels que du pétrole, du kérosène, ou des gaz tels que de l'hydrogène et de l'oxygène. Ces conduites sont par exemple prévues entre un puits et une plate-forme, ou pour le chargement de fluides, par exemple entre une plate-forme et un bateau. Pour des raisons de sécurité, ces conduites doivent être contrôlées, surveillées et nettoyées régulièrement. The pipes or pipelines referred to in this description, are used for the transport of fluids, such as oil, kerosene, or gases such as hydrogen and oxygen. These pipes are for example provided between a well and a platform, or for the loading of fluids, for example between a platform and a boat. For safety reasons, these lines must be checked, monitored and cleaned regularly.
[0003] Pour cela, on utilise des outils de nettoyage qui se déplacent dans les conduites, et qui comprennent un axe sur lequel sont montés différents modules remplissant différentes fonctions. Un de ces modules comprend au moins une coupelle circulaire dimensionnée pour frotter contre la paroi de la conduite pour garantir l'étanchéité de manière à ce que le fluide utilisé ne puisse pas contourner la coupelle. En effet, dans ce cas, la pression du fluide pour faire avancer l'outil de nettoyage pourrait ne plus être suffisante de sorte que l'outil peut être ralenti, voire être arrêté dans la conduite. En même temps, la coupelle a pour fonction de racler la paroi de la conduite afin de gratter les dépôts apparus sur la paroi. For this, we use cleaning tools that move in the pipes, and which include an axis on which are mounted different modules fulfilling different functions. One of these modules comprises at least one circular cup dimensioned to rub against the wall of the pipe to ensure sealing so that the fluid used can not bypass the cup. Indeed, in this case, the pressure of the fluid to advance the cleaning tool may no longer be sufficient so that the tool can be slowed or stopped in the pipe. At the same time, the cup has the function of scraping the wall of the pipe in order to scrape deposits on the wall.
[0004] Par ailleurs, dans le cas des outils bidirectionnels, il est important d'avoir une étanchéité au niveau de l'outil de nettoyage de manière à pouvoir travailler à la même pression dans les deux sens de déplacement de l'outil. Moreover, in the case of bidirectional tools, it is important to have a seal at the cleaning tool so as to work at the same pressure in both directions of movement of the tool.
[0005] Les outils de nettoyage bidirectionnels actuels comprennent des coupelles présentant la forme d'un disque plat qui n'a a priori aucune influence sur la mobilité de l'outil de nettoyage. Certains systèmes prévoient l'utilisation de disques de dimensions supérieures à celles de la conduite, présentant une certaine souplesse. Toutefois, l'inconvénient de ces coupelles est que, lorsque l'on inverse le fluide, ces coupelles ne se retournent qu'à l'aide d'une très grande pression. De plus, une fois retournées, elles ne sont plus parfaitement étanches. Current bi-directional cleaning tools include cups having the shape of a flat disc which has a priori no influence on the mobility of the cleaning tool. Some systems provide for the use of discs larger than those of the pipe, presenting a some flexibility. However, the disadvantage of these cups is that, when the fluid is reversed, these cups turn back with the help of a very great pressure. In addition, once returned, they are no longer perfectly waterproof.
[0006] Un but de la présente invention est donc de pallier cet inconvénient, en proposant une coupelle d'un outil de nettoyage de conduite, et plus particulièrement un outil bidirectionnel, permettant de maintenir l'étanchéité entre la conduite et l'outil et de travailler à la même pression quel que soit le sens de déplacement de l'outil de nettoyage dans la conduite. An object of the present invention is therefore to overcome this disadvantage, by providing a cup of a pipe cleaning tool, and more particularly a bidirectional tool, to maintain the seal between the pipe and the tool and to work at the same pressure regardless of the direction of movement of the cleaning tool in the pipe.
Divulgation de l'invention Disclosure of the invention
[0007] A cet effet, et conformément à la présente invention, il est proposé une coupelle d'outil de nettoyage de conduite présentant un volume défini par deux parois circulaires sensiblement parallèles et par une bande circulaire périphérique reliant lesdites parois circulaires. For this purpose, and in accordance with the present invention, there is provided a conduit cleaning tool cup having a volume defined by two substantially parallel circular walls and a peripheral circular band connecting said circular walls.
[0008] Selon l'invention, chacune desdites parois circulaires comprend un noyau central présentant un orifice destiné au passage d'un axe de l'outil, une zone intermédiaire circulaire entourant le noyau central et un rebord extérieur circulaire entourant ladite zone intermédiaire et lié à la bande circulaire périphérique, ladite zone intermédiaire étant agencée pour définir une gorge constituant une zone plus déformable que le noyau central et le rebord extérieur. According to the invention, each of said circular walls comprises a central core having an orifice for the passage of an axis of the tool, a circular intermediate zone surrounding the central core and a circular outer edge surrounding said intermediate zone and bound to the peripheral circular band, said intermediate zone being arranged to define a groove constituting a more deformable zone than the central core and the outer edge.
[0009] Ainsi, la zone intermédiaire peut se déformer pour que la coupelle occupe toute la section de la conduite de manière à garantir l'étanchéité. Thus, the intermediate zone can be deformed so that the cup occupies the entire section of the pipe so as to ensure sealing.
[0010] La présente invention concerne également un outil de nettoyage de conduite comprenant un axe, comprenant au moins une coupelle telle que définie ci- dessus montée sur ledit axe. The present invention also relates to a pipe cleaning tool comprising an axis, comprising at least one cup as defined above mounted on said axis.
Brève description des dessins Brief description of the drawings
[0011] L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée à titre d'exemples et faite en référence aux dessins dans lesquels: The invention will be better understood on reading the description which follows, given by way of examples and with reference to the drawings in which:
- les figures 1 à 3 représentent respectivement une vue de dessus, une vue en coupe selon l'axe AA et une vue isométrique d'une première variante de coupelle selon l'invention; - les figures 4 à 6 représentent respectivement une vue de dessus, une vue en coupe selon l'axe AA et une vue isométrique d'une deuxième variante de coupelle selon l'invention; et- Figures 1 to 3 respectively show a top view, a sectional view along the axis AA and an isometric view of a first variant of the cup according to the invention; - Figures 4 to 6 respectively show a top view, a sectional view along the axis AA and an isometric view of a second variant of the cup according to the invention; and
- la figure 7 représente une vue isométrique d'un module d'un outil de nettoyage comprenant des coupelles selon l'invention. FIG. 7 represents an isometric view of a module of a cleaning tool comprising cups according to the invention.
Mode(s) de réalisation de l'invention Mode (s) of realization of the invention
[0012] En référence aux figures 1 à 3, il est représenté une première variante d'une coupelle selon l'invention. Referring to Figures 1 to 3, there is shown a first variant of a cup according to the invention.
[0013] Ladite coupelle 10 présente un volume défini par deux parois circulaires 1 et 2, sensiblement parallèles et par une bande circulaire 3 périphérique reliant lesdites parois circulaires 1 et 2. Said cup 10 has a volume defined by two circular walls 1 and 2, substantially parallel and a circular peripheral band 3 connecting said circular walls 1 and 2.
[0014] Comme le montre la figure 7, la coupelle 10 est destinée à être montée sur un axe 4 d'un module 5 d'un outil de nettoyage de conduite grâce à des moyens de fixation prévus à cet effet. Ces moyens de fixation sont connus de l'homme du métier et ne seront pas décrits plus en détails. Le module 5 est connecté à d'autres modules pour former un outil de nettoyage complet. As shown in Figure 7, the cup 10 is intended to be mounted on an axis 4 of a module 5 of a pipe cleaning tool by means of fixing means provided for this purpose. These fixing means are known to those skilled in the art and will not be described in more detail. Module 5 is connected to other modules to form a complete cleaning tool.
[0015] Conformément à l'invention, chacune desdites parois circulaires 1 , 2 de la coupelle 10 comprend: According to the invention, each of said circular walls 1, 2 of the cup 10 comprises:
- un noyau central 6 présentant un orifice 6a destiné au passage de l'axe 4 de l'outil de nettoyage, a central core 6 having an orifice 6a for the passage of the axis 4 of the cleaning tool,
- une zone intermédiaire 8 circulaire entourant le noyau central 6, et an intermediate circular zone 8 surrounding the central core 6, and
- un rebord extérieur 12 circulaire entourant ladite zone intermédiaire 8 et lié à la bande circulaire 3. an outer circular rim 12 surrounding said intermediate zone 8 and connected to the circular band 3.
Ladite zone intermédiaire 8 est agencée pour définir une gorge constituant une zone plus déformable que le noyau central 6 et le rebord extérieur 12. Said intermediate zone 8 is arranged to define a groove constituting a more deformable zone than the central core 6 and the outer rim 12.
[0016] Les deux parois 1 et 2 sont disposées de sorte que les orifices 6a sont alignés pour le passage de l'axe 4 de l'outil. De plus, les parois circulaires 1 et 2 sont de préférence symétriques par rapport à un plan transversal de la coupelle 10. Il est bien évident que les parois 1 et 2 peuvent ne pas être symétriques, la présence de la gorge étant toutefois respectée. Mais la symétrie est préférable pour réduire les coûts de fabrication. [0017] D'une manière avantageuse, le volume défini par les parois circulaires 1 , 2 et la bande circulaire 3 périphérique est plein, à l'exception de l'orifice destiné au passage de l'axe 4 de l'outil de nettoyage. The two walls 1 and 2 are arranged so that the orifices 6a are aligned for the passage of the axis 4 of the tool. In addition, the circular walls 1 and 2 are preferably symmetrical with respect to a transverse plane of the cup 10. It is obvious that the walls 1 and 2 may not be symmetrical, the presence of the groove being however respected. But symmetry is better to reduce manufacturing costs. Advantageously, the volume defined by the circular walls 1, 2 and the peripheral circular band 3 is full, with the exception of the orifice for the passage of the axis 4 of the cleaning tool. .
[0018] Dans cette variante, le noyau central 6 présente une hauteur inférieure à celle du rebord extérieur 12. In this variant, the central core 6 has a height less than that of the outer edge 12.
[0019] Les figures 4 à 6 représentent une deuxième variante de l'invention. Les éléments sont représentés avec les mêmes références que celles des figures Figures 4 to 6 show a second variant of the invention. The elements are represented with the same references as those of the figures
1 à 3. 1 to 3.
[0020] Dans cette deuxième variante, le noyau central 6 présente une hauteur supérieure à celle du rebord extérieur 12. Cela permet d'utiliser le noyau central 6 comme écarteur. In this second variant, the central core 6 has a height greater than that of the outer edge 12. This allows the central core 6 to be used as a spacer.
[0021] D'une manière avantageuse, la coupelle selon l'invention présente un diamètre supérieur à celui de la conduite, de préférence supérieur de 2% à 8%, et plus préférentiellement supérieur de 3 à 5% à celui de la conduite. Advantageously, the cup according to the invention has a diameter greater than that of the pipe, preferably greater than 2% to 8%, and more preferably greater than 3 to 5% than that of the pipe.
[0022] De préférence, la coupelle est réalisée dans un matériau polymère, tel que du polyuréthane. Preferably, the cup is made of a polymeric material, such as polyurethane.
[0023] De manière à favoriser l'étanchéité et le raclage, la bande circulaire 3 est de préférence perpendiculaire aux parois circulaires 1 et 2. In order to promote sealing and scraping, the circular band 3 is preferably perpendicular to the circular walls 1 and 2.
[0024] De plus, toujours dans le but d'améliorer le raclage, la bande circulaire 3 peut être moulée de manière à créer une surface plus rugueuse. In addition, still for the purpose of improving the scraping, the circular band 3 can be molded to create a rougher surface.
[0025] La présente invention concerne également un outil de nettoyage de conduite comprend au moins une coupelle telle que décrite ci-dessus. Le nombre de coupelles est adapté en fonction de la conduite à traiter. Lorsque la conduite comprend des coudes, il est préférable de prévoir au moins deux coupelles. The present invention also relates to a pipe cleaning tool comprises at least one cup as described above. The number of cups is adapted according to the pipe to be treated. When the pipe includes elbows, it is preferable to provide at least two cups.
[0026] La coupelle selon l'invention est particulièrement efficace pour les outils de nettoyage de conduite bidirectionnels. The cup according to the invention is particularly effective for bidirectional pipe cleaning tools.
[0027] Lors de l'utilisation de l'outil de nettoyage dans un sens, la coupelle, plus grande que la conduite, s'incline selon un certain angle du fait de la pression du fluide exercée sur la paroi circulaire 1 , tout en restant au contact de la paroi de la conduite pour maintenir l'étanchéité. Lorsque l'outil est ramené dans l'autre sens, la coupelle conserve sensiblement la même inclinaison. La pression du fluide qui s'exerce alors sur la paroi circulaire 2 entraine une déformation au niveau de la zone intermédiaire 8 de sorte que la coupelle se déforme pour continuer à occuper toute la section de la conduite. Ainsi, l'étanchéité est préservée et le travail de l'outil peut se faire à la même pression que dans le sens initial. When using the cleaning tool in one direction, the cup, larger than the pipe, tilts at an angle due to the pressure of the fluid exerted on the circular wall 1, while remaining in contact with the wall of the pipe to maintain the seal. When the tool is returned in the other direction, the cup retains substantially the same inclination. The pressure of the fluid which is then exerted on the circular wall 2 causes a deformation at the intermediate zone 8 so that the cup is deformed to continue to occupy the entire section of the pipe. Thus, the seal is preserved and the work of the tool can be done at the same pressure as in the original direction.
La coupelle selon l'invention peut être utilisée sur tous les outils de nettoyage de conduite appropriés pour le nettoyage des conduites du type pipelines, mais aussi conduites de chargement, risers, etc. L'outil peut également servir comme pistons de séparation de produit dans une conduite. The cup according to the invention can be used on all pipe cleaning tools suitable for cleaning pipelines, but also loading lines, risers, etc. The tool can also be used as product separation pistons in a pipeline.
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES12700473.7T ES2527199T3 (en) | 2011-01-13 | 2012-01-10 | Duct cleaning tool cup |
| EP12700473.7A EP2663409B1 (en) | 2011-01-13 | 2012-01-10 | Dish for a pipe-cleaning tool |
| DK12700473.7T DK2663409T3 (en) | 2011-01-13 | 2012-01-10 | BUY A PIPE CLEANING TOOL |
| PL12700473T PL2663409T3 (en) | 2011-01-13 | 2012-01-10 | Dish for a pipe-cleaning tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00053/11A CH704330B1 (en) | 2011-01-13 | 2011-01-13 | Cup pipe cleaning tool. |
| CH00053/11 | 2011-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012095414A1 true WO2012095414A1 (en) | 2012-07-19 |
Family
ID=43981116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/050298 Ceased WO2012095414A1 (en) | 2011-01-13 | 2012-01-10 | Dish for a pipe-cleaning tool |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2663409B1 (en) |
| CH (1) | CH704330B1 (en) |
| DK (1) | DK2663409T3 (en) |
| ES (1) | ES2527199T3 (en) |
| PL (1) | PL2663409T3 (en) |
| PT (1) | PT2663409E (en) |
| WO (1) | WO2012095414A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057401A (en) * | 2013-01-14 | 2013-04-24 | 新乡职业技术学院 | Anti-theft fuel tank. |
| CN106890830A (en) * | 2015-12-18 | 2017-06-27 | 中国石油天然气股份有限公司 | Detection method of cup, pig and cup wear degree |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1966819A (en) * | 1932-10-08 | 1934-07-17 | Gulf Pipe Line Company | Slugging liquids through conduits and the like |
| DE1994891U (en) * | 1968-07-03 | 1968-10-17 | Oscar Menzel Nachf Dr | ELASTIC PIG OR SCRAPER, ESPECIALLY FOR FLEXIBLE LINES. |
| US3906576A (en) * | 1973-07-09 | 1975-09-23 | Mary M Knapp | Resilient element for a bi-directional pig |
| JPS6039388U (en) * | 1983-08-25 | 1985-03-19 | 東京電設サ−ビス株式会社 | Drainage tool for TV investigation inside pipes |
| US4984322A (en) * | 1989-11-07 | 1991-01-15 | Tdw Delaware, Inc. | Elastomeric disc for use on a pipeline pig |
-
2011
- 2011-01-13 CH CH00053/11A patent/CH704330B1/en not_active IP Right Cessation
-
2012
- 2012-01-10 ES ES12700473.7T patent/ES2527199T3/en active Active
- 2012-01-10 PT PT127004737T patent/PT2663409E/en unknown
- 2012-01-10 WO PCT/EP2012/050298 patent/WO2012095414A1/en not_active Ceased
- 2012-01-10 EP EP12700473.7A patent/EP2663409B1/en active Active
- 2012-01-10 PL PL12700473T patent/PL2663409T3/en unknown
- 2012-01-10 DK DK12700473.7T patent/DK2663409T3/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1966819A (en) * | 1932-10-08 | 1934-07-17 | Gulf Pipe Line Company | Slugging liquids through conduits and the like |
| DE1994891U (en) * | 1968-07-03 | 1968-10-17 | Oscar Menzel Nachf Dr | ELASTIC PIG OR SCRAPER, ESPECIALLY FOR FLEXIBLE LINES. |
| US3906576A (en) * | 1973-07-09 | 1975-09-23 | Mary M Knapp | Resilient element for a bi-directional pig |
| JPS6039388U (en) * | 1983-08-25 | 1985-03-19 | 東京電設サ−ビス株式会社 | Drainage tool for TV investigation inside pipes |
| US4984322A (en) * | 1989-11-07 | 1991-01-15 | Tdw Delaware, Inc. | Elastomeric disc for use on a pipeline pig |
Also Published As
| Publication number | Publication date |
|---|---|
| CH704330B1 (en) | 2016-11-30 |
| ES2527199T3 (en) | 2015-01-21 |
| EP2663409B1 (en) | 2014-10-15 |
| PT2663409E (en) | 2015-01-14 |
| CH704330A1 (en) | 2012-07-13 |
| PL2663409T3 (en) | 2015-04-30 |
| EP2663409A1 (en) | 2013-11-20 |
| DK2663409T3 (en) | 2015-01-19 |
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