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公开(公告)号:EP3676527B1
公开(公告)日:2021-09-29
申请号:EP18773091.6
申请日:2018-08-30
IPC分类号: F16L55/46 , B08B9/055 , F16L101/12
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公开(公告)号:EP3110573B1
公开(公告)日:2021-04-14
申请号:EP15704694.7
申请日:2015-02-10
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公开(公告)号:EP3019285B1
公开(公告)日:2021-04-07
申请号:EP14744457.4
申请日:2014-07-03
发明人: DANILOV, Andrey , BEUKER, Thomas
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公开(公告)号:EP3475603A1
公开(公告)日:2019-05-01
申请号:EP17735356.2
申请日:2017-06-26
申请人: TDW Delaware, Inc.
发明人: MORROW, John R.
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公开(公告)号:EP3099968B1
公开(公告)日:2018-12-26
申请号:EP15702961.2
申请日:2015-01-14
申请人: Rosen Swiss AG
CPC分类号: F16L55/40 , B08B9/055 , B08B9/0557 , F16L2101/30
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公开(公告)号:EP1807195B1
公开(公告)日:2017-01-04
申请号:EP05804619.4
申请日:2005-10-28
CPC分类号: B01J19/002 , B01J19/0026 , B01J19/2435 , B01J2219/00247 , B08B9/055
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公开(公告)号:EP2653238A3
公开(公告)日:2016-06-01
申请号:EP13164479.1
申请日:2013-04-19
申请人: Cokebusters Limited
发明人: Phipps, John , Lewis, Hugh
CPC分类号: B08B9/0551 , B08B9/0557 , F16L55/26 , G01M3/005 , G01M3/246
摘要: An intelligent pig for pipeline monitoring comprises a single body (1) containing signal transmitters and receivers provided with replaceable rings (5, 6, 7, 8) for centering the body (1) within the pipeline, the rings (5, 6, 7, 8) may be provided with brushes (9) which help centre the pig within the pipeline and also aid its passage through pipelines which may contain bends and/or be of variable diameter, the pig may be used in combination with a cleaning pig to provide combined activities using a common driving force.
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公开(公告)号:EP1779937B1
公开(公告)日:2014-08-27
申请号:EP06022434.2
申请日:2006-10-26
申请人: Galloway Company
发明人: Galloway, Tod R.
CPC分类号: B08B9/0551 , B08B9/032 , B08B9/04 , C11D11/0041 , F16L55/46
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公开(公告)号:EP2760597A1
公开(公告)日:2014-08-06
申请号:EP12836891.7
申请日:2012-08-30
申请人: Doig, Ian Dracup
发明人: Doig, Ian Dracup
CPC分类号: B08B9/055 , B08B9/0553 , F16L55/1283 , F16L55/38 , F16L55/44
摘要: Pigs (10) are propelled forwards by a propulsion fluid in a pipeline (21). The pigs (10) have an upstream end (13), a downstream end (11), and an intermediate section (12). The intermediate section has a variable geometry chamber (16) associated therewith and one or more outwardly extending external pawl teeth (15). The pawl teeth are automatically displaceable outwardly relative to a longitudinal axis (9) in response to a pressure differential between a downstream pressure and an upstream pressure. The pig is configured such that a change in a geometry of the chamber in response to the pressure differential between the downstream pressure and the upstream pressure causes the one or more pawl teeth to automatically displace outwardly when the upstream pressure is less than the downstream pressure. When the pawl teeth are deployed, upstream displacement of the pig is inhibited. Various related systems (5) and methods are also disclosed.
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