GB2361069B - Pipeline mapping and interrupter therefor - Google Patents

Pipeline mapping and interrupter therefor

Info

Publication number
GB2361069B
GB2361069B GB0107083A GB0107083A GB2361069B GB 2361069 B GB2361069 B GB 2361069B GB 0107083 A GB0107083 A GB 0107083A GB 0107083 A GB0107083 A GB 0107083A GB 2361069 B GB2361069 B GB 2361069B
Authority
GB
United Kingdom
Prior art keywords
pipeline mapping
interrupter therefor
interrupter
therefor
mapping
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
Application number
GB0107083A
Other versions
GB0107083D0 (en
GB2361069A (en
Inventor
David William Flatt
Stephen John Petherick
Robert Ashworth Worsley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RADIODETECTION Ltd
Radiodetection Ltd
Original Assignee
RADIODETECTION Ltd
Radiodetection Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RADIODETECTION Ltd, Radiodetection Ltd filed Critical RADIODETECTION Ltd
Priority to GB0207128A priority Critical patent/GB2370583B/en
Priority to GB0207125A priority patent/GB2370648B/en
Priority to GB0207126A priority patent/GB2370582B/en
Publication of GB0107083D0 publication Critical patent/GB0107083D0/en
Publication of GB2361069A publication Critical patent/GB2361069A/en
Application granted granted Critical
Publication of GB2361069B publication Critical patent/GB2361069B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
GB0107083A 2000-03-24 2001-03-21 Pipeline mapping and interrupter therefor Expired - Lifetime GB2361069B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0207128A GB2370583B (en) 2000-03-24 2001-03-21 Pipeline mapping and interrupter therefor
GB0207125A GB2370648B (en) 2000-03-24 2001-03-21 Pipeline mapping
GB0207126A GB2370582B (en) 2000-03-24 2001-03-21 Pipeline mapping and interrupter therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0007216A GB0007216D0 (en) 2000-03-24 2000-03-24 Pipeline mapping and interrupter therefore

Publications (3)

Publication Number Publication Date
GB0107083D0 GB0107083D0 (en) 2001-05-09
GB2361069A GB2361069A (en) 2001-10-10
GB2361069B true GB2361069B (en) 2002-10-02

Family

ID=9888376

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0007216A Ceased GB0007216D0 (en) 2000-03-24 2000-03-24 Pipeline mapping and interrupter therefore
GB0107083A Expired - Lifetime GB2361069B (en) 2000-03-24 2001-03-21 Pipeline mapping and interrupter therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0007216A Ceased GB0007216D0 (en) 2000-03-24 2000-03-24 Pipeline mapping and interrupter therefore

Country Status (1)

Country Link
GB (2) GB0007216D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034704B2 (en) * 2004-05-24 2006-04-25 Mahowald Peter H System powered via signal on gas pipe
US8298382B2 (en) * 2010-12-15 2012-10-30 Abriox Limited Apparatus for use with metallic structures
CN102262173B (en) * 2011-04-19 2013-11-20 天津市嘉信技术工程公司 Method for measuring buried depth of buried pipeline, size and direction of stray current and geomagnetic azimuth angle
NO20160104A1 (en) * 2016-01-20 2017-07-21 Force Tech Norway As Method for detection of electric fields surrounding a structure in an electrically conducting medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356444A (en) * 1980-12-15 1982-10-26 Saenz Jr Alfredo Test system for cathodic protection circuit of an underground pipeline
WO1991020002A1 (en) * 1990-06-18 1991-12-26 The Charles Machine Works, Inc. An improved system for locating concealed underground objects
US5077486A (en) * 1988-03-21 1991-12-31 Gary Marson Power supply for cathodic protection system
GB2245370A (en) * 1989-02-13 1992-01-02 Radiodetection Ltd Conductor tracing system
JPH0712950A (en) * 1993-06-17 1995-01-17 Japan Steel & Tube Constr Co Ltd Method and device for detecting position of buried pipe and corrosion preventing current
WO1996003664A1 (en) * 1994-07-22 1996-02-08 Radiodetection Limited Identification of buried cables
WO1998054601A1 (en) * 1997-05-30 1998-12-03 Radiodetection Limited Identification of buried cables

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356444A (en) * 1980-12-15 1982-10-26 Saenz Jr Alfredo Test system for cathodic protection circuit of an underground pipeline
US5077486A (en) * 1988-03-21 1991-12-31 Gary Marson Power supply for cathodic protection system
GB2245370A (en) * 1989-02-13 1992-01-02 Radiodetection Ltd Conductor tracing system
WO1991020002A1 (en) * 1990-06-18 1991-12-26 The Charles Machine Works, Inc. An improved system for locating concealed underground objects
JPH0712950A (en) * 1993-06-17 1995-01-17 Japan Steel & Tube Constr Co Ltd Method and device for detecting position of buried pipe and corrosion preventing current
WO1996003664A1 (en) * 1994-07-22 1996-02-08 Radiodetection Limited Identification of buried cables
WO1998054601A1 (en) * 1997-05-30 1998-12-03 Radiodetection Limited Identification of buried cables

Also Published As

Publication number Publication date
GB0107083D0 (en) 2001-05-09
GB0007216D0 (en) 2000-05-17
GB2361069A (en) 2001-10-10

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20210320