GB2105041B - Pipeline traveller detection system - Google Patents

Pipeline traveller detection system

Info

Publication number
GB2105041B
GB2105041B GB08123002A GB8123002A GB2105041B GB 2105041 B GB2105041 B GB 2105041B GB 08123002 A GB08123002 A GB 08123002A GB 8123002 A GB8123002 A GB 8123002A GB 2105041 B GB2105041 B GB 2105041B
Authority
GB
United Kingdom
Prior art keywords
traveller
pipeline
detection system
detection
traveller detection
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
Application number
GB08123002A
Other versions
GB2105041A (en
Inventor
Andrew Guy Kerr
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB08123002A priority Critical patent/GB2105041B/en
Publication of GB2105041A publication Critical patent/GB2105041A/en
Application granted granted Critical
Publication of GB2105041B publication Critical patent/GB2105041B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles
    • 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
GB08123002A 1981-07-25 1981-07-25 Pipeline traveller detection system Expired GB2105041B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08123002A GB2105041B (en) 1981-07-25 1981-07-25 Pipeline traveller detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08123002A GB2105041B (en) 1981-07-25 1981-07-25 Pipeline traveller detection system

Publications (2)

Publication Number Publication Date
GB2105041A GB2105041A (en) 1983-03-16
GB2105041B true GB2105041B (en) 1985-03-27

Family

ID=10523507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08123002A Expired GB2105041B (en) 1981-07-25 1981-07-25 Pipeline traveller detection system

Country Status (1)

Country Link
GB (1) GB2105041B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9816083D0 (en) * 1998-07-24 1998-09-23 Jme Ltd Pipeline crawler control and/or tracking system
GB2355622A (en) * 1999-07-22 2001-04-25 Jme Ltd Signalling through steel walls

Also Published As

Publication number Publication date
GB2105041A (en) 1983-03-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20010724