NO20032462L - Traktor med forbedret ventilsystem - Google Patents
Traktor med forbedret ventilsystemInfo
- Publication number
- NO20032462L NO20032462L NO20032462A NO20032462A NO20032462L NO 20032462 L NO20032462 L NO 20032462L NO 20032462 A NO20032462 A NO 20032462A NO 20032462 A NO20032462 A NO 20032462A NO 20032462 L NO20032462 L NO 20032462L
- Authority
- NO
- Norway
- Prior art keywords
- tractor
- valve system
- improved valve
- improved
- valve
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/042—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/18—Anchoring or feeding in the borehole
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Fluid-Pressure Circuits (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Actuator (AREA)
- Fluid-Driven Valves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25084700P | 2000-12-01 | 2000-12-01 | |
| PCT/US2001/046729 WO2002044509A2 (en) | 2000-12-01 | 2001-12-03 | Tractor with improved valve system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20032462D0 NO20032462D0 (no) | 2003-05-30 |
| NO20032462L true NO20032462L (no) | 2003-07-30 |
| NO339998B1 NO339998B1 (no) | 2017-02-27 |
Family
ID=22949395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20032462A NO339998B1 (no) | 2000-12-01 | 2003-05-30 | Traktorsammenstilling og fremgangsmåte for bevegelse av traktorsammenstillingen inne i et borehull |
Country Status (6)
| Country | Link |
|---|---|
| US (6) | US6679341B2 (no) |
| AU (2) | AU2002230623B2 (no) |
| CA (1) | CA2436944C (no) |
| GB (2) | GB2413816B (no) |
| NO (1) | NO339998B1 (no) |
| WO (1) | WO2002044509A2 (no) |
Families Citing this family (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6347674B1 (en) * | 1998-12-18 | 2002-02-19 | Western Well Tool, Inc. | Electrically sequenced tractor |
| US6464003B2 (en) | 2000-05-18 | 2002-10-15 | Western Well Tool, Inc. | Gripper assembly for downhole tractors |
| GB0028619D0 (en) | 2000-11-24 | 2001-01-10 | Weatherford Lamb | Traction apparatus |
| GB2413816B (en) * | 2000-12-01 | 2006-01-04 | Western Well Tool Inc | Tractor with improved valve system |
| US8245796B2 (en) * | 2000-12-01 | 2012-08-21 | Wwt International, Inc. | Tractor with improved valve system |
| US7121364B2 (en) | 2003-02-10 | 2006-10-17 | Western Well Tool, Inc. | Tractor with improved valve system |
| RU2274725C2 (ru) * | 2001-01-10 | 2006-04-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Устройство для закрепления в скважине бурильной колонны |
| GB0206246D0 (en) * | 2002-03-15 | 2002-05-01 | Weatherford Lamb | Tractors for movement along a pipepline within a fluid flow |
| GB2414499B (en) * | 2003-02-10 | 2006-06-28 | Western Well Tool Inc | Tractor with improved valve system |
| CA2465926C (en) | 2003-04-30 | 2009-08-25 | Weatherford/Lamb, Inc. | A traction apparatus |
| US7150318B2 (en) * | 2003-10-07 | 2006-12-19 | Halliburton Energy Services, Inc. | Apparatus for actuating a well tool and method for use of same |
| US7392859B2 (en) * | 2004-03-17 | 2008-07-01 | Western Well Tool, Inc. | Roller link toggle gripper and downhole tractor |
| US7172026B2 (en) * | 2004-04-01 | 2007-02-06 | Bj Services Company | Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| US7273108B2 (en) * | 2004-04-01 | 2007-09-25 | Bj Services Company | Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| US9500058B2 (en) | 2004-05-28 | 2016-11-22 | Schlumberger Technology Corporation | Coiled tubing tractor assembly |
| US20080066963A1 (en) * | 2006-09-15 | 2008-03-20 | Todor Sheiretov | Hydraulically driven tractor |
| US7617873B2 (en) | 2004-05-28 | 2009-11-17 | Schlumberger Technology Corporation | System and methods using fiber optics in coiled tubing |
| US7334642B2 (en) | 2004-07-15 | 2008-02-26 | Schlumberger Technology Corporation | Constant force actuator |
| EP1640556B8 (en) * | 2004-09-20 | 2008-10-15 | Services Petroliers Schlumberger | Dual tractor drilling system |
| GB0515070D0 (en) * | 2005-07-22 | 2005-08-31 | Moyes Peter B | Downhole tool |
| US8863824B2 (en) | 2006-02-09 | 2014-10-21 | Schlumberger Technology Corporation | Downhole sensor interface |
| US7516782B2 (en) | 2006-02-09 | 2009-04-14 | Schlumberger Technology Corporation | Self-anchoring device with force amplification |
| US7624808B2 (en) | 2006-03-13 | 2009-12-01 | Western Well Tool, Inc. | Expandable ramp gripper |
| US7661477B2 (en) * | 2006-03-31 | 2010-02-16 | Schlumberger Technology Corporation | System and method for unsticking a tool stuck in a wellbore |
| US20080053663A1 (en) * | 2006-08-24 | 2008-03-06 | Western Well Tool, Inc. | Downhole tool with turbine-powered motor |
| US20080217024A1 (en) * | 2006-08-24 | 2008-09-11 | Western Well Tool, Inc. | Downhole tool with closed loop power systems |
| US7748476B2 (en) | 2006-11-14 | 2010-07-06 | Wwt International, Inc. | Variable linkage assisted gripper |
| US9133673B2 (en) | 2007-01-02 | 2015-09-15 | Schlumberger Technology Corporation | Hydraulically driven tandem tractor assembly |
| US8770303B2 (en) | 2007-02-19 | 2014-07-08 | Schlumberger Technology Corporation | Self-aligning open-hole tractor |
| CA2630084A1 (en) * | 2007-04-30 | 2008-10-30 | Mark Andreychuk | Coiled tubing with retainer for conduit |
| US9194512B2 (en) | 2007-04-30 | 2015-11-24 | Mark Andreychuk | Coiled tubing with heat resistant conduit |
| US7770667B2 (en) | 2007-06-14 | 2010-08-10 | Wwt International, Inc. | Electrically powered tractor |
| WO2009089187A2 (en) * | 2008-01-03 | 2009-07-16 | Western Well Tool, Inc. | Anti-stall tool for downhole drilling assemblies |
| US8529222B2 (en) * | 2009-05-05 | 2013-09-10 | National Oilwell Varco, L.P. | Surface pump assembly having a thrust chamber with a telescoping shaft |
| US8919459B2 (en) * | 2009-08-11 | 2014-12-30 | Schlumberger Technology Corporation | Control systems and methods for directional drilling utilizing the same |
| WO2011037588A1 (en) * | 2009-09-28 | 2011-03-31 | Halliburton Energy Services, Inc. | Pipe conveyed extendable well logging tool |
| US8485278B2 (en) | 2009-09-29 | 2013-07-16 | Wwt International, Inc. | Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools |
| US20120199399A1 (en) * | 2009-10-12 | 2012-08-09 | John Andrew Henley | Casing rotary steerable system for drilling |
| DK179473B1 (en) * | 2009-10-30 | 2018-11-27 | Total E&P Danmark A/S | A device and a system and a method of moving in a tubular channel |
| DK177946B9 (da) | 2009-10-30 | 2015-04-20 | Maersk Oil Qatar As | Brøndindretning |
| DK178339B1 (en) | 2009-12-04 | 2015-12-21 | Maersk Oil Qatar As | An apparatus for sealing off a part of a wall in a section drilled into an earth formation, and a method for applying the apparatus |
| US8353354B2 (en) * | 2010-07-14 | 2013-01-15 | Hall David R | Crawler system for an earth boring system |
| US9045946B2 (en) * | 2010-09-23 | 2015-06-02 | Baker Hughes Incorporated | Apparatus and method for drilling wellbores |
| DK177547B1 (da) | 2011-03-04 | 2013-10-07 | Maersk Olie & Gas | Fremgangsmåde og system til brønd- og reservoir-management i udbygninger med åben zone såvel som fremgangsmåde og system til produktion af råolie |
| US9447648B2 (en) | 2011-10-28 | 2016-09-20 | Wwt North America Holdings, Inc | High expansion or dual link gripper |
| US9659113B2 (en) | 2012-03-15 | 2017-05-23 | Schlumberger Technology Corporation | Technique for establishing predictive reach through a deviated well |
| EP2650662B1 (en) * | 2012-04-10 | 2015-05-27 | Geoservices Equipements | Tension meter for measuring a mechanical tension along a longitudinal direction in a well and related subassembly and method. |
| BR112014031321A2 (pt) * | 2012-06-14 | 2017-06-27 | Halliburton Energy Services Inc | trator de poço |
| US9322239B2 (en) | 2012-11-13 | 2016-04-26 | Exxonmobil Upstream Research Company | Drag enhancing structures for downhole operations, and systems and methods including the same |
| US9488020B2 (en) | 2014-01-27 | 2016-11-08 | Wwt North America Holdings, Inc. | Eccentric linkage gripper |
| GB2530650B (en) * | 2015-08-19 | 2016-10-12 | Global Tech And Innovation Ltd | A hydraulic fluid driven tractor |
| US10934780B2 (en) | 2018-12-14 | 2021-03-02 | Weatherford Technology Holdings, Llc | Release mechanism for a whipstock |
| US11142999B2 (en) | 2019-04-30 | 2021-10-12 | Baker Hughes Oilfield Operations Llc | Downhole power generation using pressure differential |
| US11933122B2 (en) * | 2021-07-16 | 2024-03-19 | Halliburton Energy Services, Inc. | Systems and methods for power equalization for multiple downhole tractors |
| US11873690B2 (en) | 2021-07-16 | 2024-01-16 | Halliburton Energy Services, Inc. | System and methods for power maximization for downhole tractor |
| US12152467B2 (en) | 2022-03-18 | 2024-11-26 | NTS Amega West USA, Inc | Clutch assembly and related systems and methods |
| CN116838275B (zh) * | 2023-07-10 | 2025-09-19 | 大庆丹诺石油科技开发有限公司 | 一种液力往复式牵引器 |
| US12331603B1 (en) | 2024-07-17 | 2025-06-17 | Halliburton Energy Services, Inc. | Methods and apparatus to decouple downhole tool speed from conveyance tools |
Family Cites Families (67)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US28449A (en) * | 1860-05-29 | George w | ||
| US2167194A (en) | 1936-03-14 | 1939-07-25 | Lane Wells Co | Apparatus for deflecting drill holes |
| US2271005A (en) | 1939-01-23 | 1942-01-27 | Dow Chemical Co | Subterranean boring |
| US2946578A (en) | 1952-08-04 | 1960-07-26 | Smaele Albert De | Excavator apparatus having stepper type advancing means |
| US2946565A (en) | 1953-06-16 | 1960-07-26 | Jersey Prod Res Co | Combination drilling and testing process |
| US2946585A (en) * | 1956-12-14 | 1960-07-26 | Edgar N Rosenberg | Tape transport mechanism |
| US3180436A (en) | 1961-05-01 | 1965-04-27 | Jersey Prod Res Co | Borehole drilling system |
| US3180437A (en) | 1961-05-22 | 1965-04-27 | Jersey Prod Res Co | Force applicator for drill bit |
| US3225843A (en) | 1961-09-14 | 1965-12-28 | Exxon Production Research Co | Bit loading apparatus |
| US3138214A (en) | 1961-10-02 | 1964-06-23 | Jersey Prod Res Co | Bit force applicator |
| GB1035926A (en) | 1962-05-04 | 1966-07-13 | Wolstan C Ginies Entpr Proprie | Earth drilling machine |
| GB1044201A (en) | 1962-10-10 | 1966-09-28 | Post Office | Improvements in or relating to pneumatic self-propelled apparatus |
| US3224513A (en) | 1962-11-07 | 1965-12-21 | Jr Frank G Weeden | Apparatus for downhole drilling |
| US3376942A (en) | 1965-07-13 | 1968-04-09 | Baker Oil Tools Inc | Large hole vertical drilling apparatus |
| US3497019A (en) | 1968-02-05 | 1970-02-24 | Exxon Production Research Co | Automatic drilling system |
| US3606924A (en) | 1969-01-28 | 1971-09-21 | Lynes Inc | Well tool for use in a tubular string |
| US3599712A (en) | 1969-09-30 | 1971-08-17 | Dresser Ind | Hydraulic anchor device |
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| US3797589A (en) | 1973-04-16 | 1974-03-19 | Smith International | Self guiding force applicator |
| US3941190A (en) | 1974-11-18 | 1976-03-02 | Lynes, Inc. | Well control apparatus |
| US3992565A (en) | 1975-07-07 | 1976-11-16 | Belden Corporation | Composite welding cable having gas ducts and switch wires therein |
| US4095655A (en) | 1975-10-14 | 1978-06-20 | Still William L | Earth penetration |
| US3978930A (en) | 1975-11-14 | 1976-09-07 | Continental Oil Company | Earth drilling mechanisms |
| DE2604063A1 (de) | 1976-02-03 | 1977-08-04 | Miguel Kling | Selbstfahrende und selbstarretierende vorrichtung zum befahren von kanaelen bzw. von langgestreckten gebilden |
| SE414805B (sv) | 1976-11-05 | 1980-08-18 | Sven Halvor Johansson | Anordning vid don avsedda for uppberning resp forflyttning av en bergborrningsanordning som skall uppborra mycket langa, foretredesvis vertikala schakt i berggrunden |
| JPS56152558A (en) * | 1980-04-22 | 1981-11-26 | Yukio Okuno | Production method by division of work for multiple kind of article at multiple process |
| US4314615A (en) | 1980-05-28 | 1982-02-09 | George Sodder, Jr. | Self-propelled drilling head |
| US4365676A (en) | 1980-08-25 | 1982-12-28 | Varco International, Inc. | Method and apparatus for drilling laterally from a well bore |
| US4372181A (en) * | 1980-11-10 | 1983-02-08 | N-S-W Corporation | Compact power wrenching machine |
| CA1158182A (en) | 1981-02-25 | 1983-12-06 | De Buda, Eric G. | Pneumatically operated pipe crawler |
| US4385021A (en) | 1981-07-14 | 1983-05-24 | Mobil Oil Corporation | Method for making air hose bundles for gun arrays |
| US4440239A (en) | 1981-09-28 | 1984-04-03 | Exxon Production Research Co. | Method and apparatus for controlling the flow of drilling fluid in a wellbore |
| US4463814A (en) | 1982-11-26 | 1984-08-07 | Advanced Drilling Corporation | Down-hole drilling apparatus |
| FR2556478B1 (fr) | 1983-12-09 | 1986-09-05 | Elf Aquitaine | Procede et dispositif de mesures geophysiques dans un puits fore |
| GB8401452D0 (en) | 1984-01-19 | 1984-02-22 | British Gas Corp | Replacing mains |
| US4615401A (en) | 1984-06-26 | 1986-10-07 | Smith International | Automatic hydraulic thruster |
| US4558751A (en) | 1984-08-02 | 1985-12-17 | Exxon Production Research Co. | Apparatus for transporting equipment through a conduit |
| DE3561830D1 (en) | 1985-01-07 | 1988-04-14 | Smf Int | Remotely controlled flow-responsive actuating device, in particular for actuating a stabilizer in a drill string |
| GB8616006D0 (en) | 1986-07-01 | 1986-08-06 | Framo Dev Ltd | Drilling system |
| US4811785A (en) | 1987-07-31 | 1989-03-14 | Halbrite Well Services Co. Ltd. | No-turn tool |
| US4854397A (en) | 1988-09-15 | 1989-08-08 | Amoco Corporation | System for directional drilling and related method of use |
| DE3911467A1 (de) | 1989-04-08 | 1990-10-11 | Tracto Technik | Selbstantreibbares rammbohrgeraet, insbesondere fuer die herstellung von rohrfoermigen erdbohrungen |
| FR2648861B1 (fr) | 1989-06-26 | 1996-06-14 | Inst Francais Du Petrole | Dispositif pour guider un train de tiges dans un puits |
| US5184676A (en) | 1990-02-26 | 1993-02-09 | Graham Gordon A | Self-propelled apparatus |
| US5169264A (en) | 1990-04-05 | 1992-12-08 | Kidoh Technical Ins. Co., Ltd. | Propulsion process of buried pipe |
| US5363929A (en) | 1990-06-07 | 1994-11-15 | Conoco Inc. | Downhole fluid motor composite torque shaft |
| FR2679293B1 (fr) | 1991-07-16 | 1999-01-22 | Inst Francais Du Petrole | Dispositif d'actionnement associe a une garniture de forage et comportant un circuit hydrostatique en fluide de forage, methode d'actionnement et leur application. |
| NO306522B1 (no) | 1992-01-21 | 1999-11-15 | Anadrill Int Sa | Fremgangsmaate for akustisk overföring av maalesignaler ved maaling under boring |
| SE501283C2 (sv) | 1993-05-06 | 1995-01-09 | Lars Sterner | Bergborrmaskin |
| SE508950C2 (sv) | 1993-12-29 | 1998-11-16 | Lars Liw | Styrverktyg för bergborrning |
| US5519668A (en) | 1994-05-26 | 1996-05-21 | Schlumberger Technology Corporation | Methods and devices for real-time formation imaging through measurement while drilling telemetry |
| US5425429A (en) | 1994-06-16 | 1995-06-20 | Thompson; Michael C. | Method and apparatus for forming lateral boreholes |
| US5449047A (en) | 1994-09-07 | 1995-09-12 | Ingersoll-Rand Company | Automatic control of drilling system |
| GB2301187B (en) | 1995-05-22 | 1999-04-21 | British Gas Plc | Method of and apparatus for locating an anomaly in a duct |
| US6003606A (en) | 1995-08-22 | 1999-12-21 | Western Well Tool, Inc. | Puller-thruster downhole tool |
| DE19530941B4 (de) | 1995-08-23 | 2005-08-25 | Wagon Automotive Gmbh | Fahrzeugtür mit einem zur Halterung eines Außenspiegels vorgesehenen Spiegeldreieck |
| US5803193A (en) | 1995-10-12 | 1998-09-08 | Western Well Tool, Inc. | Drill pipe/casing protector assembly |
| US5758731A (en) | 1996-03-11 | 1998-06-02 | Lockheed Martin Idaho Technologies Company | Method and apparatus for advancing tethers |
| US5794703A (en) | 1996-07-03 | 1998-08-18 | Ctes, L.C. | Wellbore tractor and method of moving an item through a wellbore |
| US5752572A (en) | 1996-09-10 | 1998-05-19 | Inco Limited | Tractor for remote movement and pressurization of a rock drill |
| US5947213A (en) | 1996-12-02 | 1999-09-07 | Intelligent Inspection Corporation | Downhole tools using artificial intelligence based control |
| US6112809A (en) | 1996-12-02 | 2000-09-05 | Intelligent Inspection Corporation | Downhole tools with a mobility device |
| US6003605A (en) * | 1997-12-01 | 1999-12-21 | Halliburton Enery Services, Inc. | Balanced line tubing retrievable safety valve |
| US6347674B1 (en) * | 1998-12-18 | 2002-02-19 | Western Well Tool, Inc. | Electrically sequenced tractor |
| BR9908000A (pt) * | 1998-12-18 | 2002-01-15 | Western Well Tool Inc | Hélice de tração eletro-hidraulicamente controlada |
| US6467557B1 (en) | 1998-12-18 | 2002-10-22 | Western Well Tool, Inc. | Long reach rotary drilling assembly |
| GB2413816B (en) * | 2000-12-01 | 2006-01-04 | Western Well Tool Inc | Tractor with improved valve system |
-
2001
- 2001-12-03 GB GB0515483A patent/GB2413816B/en not_active Expired - Lifetime
- 2001-12-03 US US10/004,965 patent/US6679341B2/en not_active Expired - Lifetime
- 2001-12-03 WO PCT/US2001/046729 patent/WO2002044509A2/en not_active Ceased
- 2001-12-03 AU AU2002230623A patent/AU2002230623B2/en not_active Expired
- 2001-12-03 GB GB0313537A patent/GB2389135B/en not_active Expired - Lifetime
- 2001-12-03 AU AU3062302A patent/AU3062302A/xx active Pending
- 2001-12-03 CA CA2436944A patent/CA2436944C/en not_active Expired - Lifetime
-
2003
- 2003-05-30 NO NO20032462A patent/NO339998B1/no not_active IP Right Cessation
-
2004
- 2004-01-19 US US10/759,664 patent/US7080700B2/en not_active Expired - Lifetime
-
2006
- 2006-05-03 US US11/418,546 patent/US7188681B2/en not_active Expired - Lifetime
-
2007
- 2007-03-12 US US11/717,467 patent/US7353886B2/en not_active Expired - Lifetime
-
2008
- 2008-03-11 US US12/046,283 patent/US7607495B2/en not_active Expired - Lifetime
-
2009
- 2009-10-27 US US12/606,986 patent/US20100108387A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| GB2389135A (en) | 2003-12-03 |
| US7188681B2 (en) | 2007-03-13 |
| AU2002230623B2 (en) | 2007-03-29 |
| CA2436944C (en) | 2012-05-08 |
| GB0515483D0 (en) | 2005-08-31 |
| NO339998B1 (no) | 2017-02-27 |
| US20080217059A1 (en) | 2008-09-11 |
| US6679341B2 (en) | 2004-01-20 |
| WO2002044509A8 (en) | 2003-01-30 |
| GB2389135B (en) | 2005-11-30 |
| NO20032462D0 (no) | 2003-05-30 |
| CA2436944A1 (en) | 2002-06-06 |
| GB2413816B (en) | 2006-01-04 |
| US7080700B2 (en) | 2006-07-25 |
| US20020112859A1 (en) | 2002-08-22 |
| US7607495B2 (en) | 2009-10-27 |
| GB2413816A (en) | 2005-11-09 |
| US20100108387A1 (en) | 2010-05-06 |
| US7353886B2 (en) | 2008-04-08 |
| GB0313537D0 (en) | 2003-07-16 |
| US20070151764A1 (en) | 2007-07-05 |
| US20040144548A1 (en) | 2004-07-29 |
| WO2002044509A2 (en) | 2002-06-06 |
| US20070000693A1 (en) | 2007-01-04 |
| AU3062302A (en) | 2002-06-11 |
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| DE50004132D1 (de) | Wegeventil | |
| FI4713U1 (fi) | Venttiili |
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Owner name: WWT NORTH AMERICA HOLDINGS, US |
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| MK1K | Patent expired |