FR2786877B1 - WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD - Google Patents

WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD

Info

Publication number
FR2786877B1
FR2786877B1 FR9815347A FR9815347A FR2786877B1 FR 2786877 B1 FR2786877 B1 FR 2786877B1 FR 9815347 A FR9815347 A FR 9815347A FR 9815347 A FR9815347 A FR 9815347A FR 2786877 B1 FR2786877 B1 FR 2786877B1
Authority
FR
France
Prior art keywords
detection device
implementation method
electromagnetic detection
warning grid
warning
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 - Fee Related
Application number
FR9815347A
Other languages
French (fr)
Other versions
FR2786877A1 (en
Inventor
Jean Marc Poignon
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.)
Intermas France SAS
Original Assignee
Nortene Technologies SAS
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 Nortene Technologies SAS filed Critical Nortene Technologies SAS
Priority to FR9815347A priority Critical patent/FR2786877B1/en
Priority to FR9904248A priority patent/FR2786878B1/en
Priority to FR9907348A priority patent/FR2786879B1/en
Priority to EP99403021A priority patent/EP1006371A1/en
Priority to CA 2291505 priority patent/CA2291505A1/en
Priority to JP11376332A priority patent/JP2000206265A/en
Publication of FR2786877A1 publication Critical patent/FR2786877A1/en
Application granted granted Critical
Publication of FR2786877B1 publication Critical patent/FR2786877B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
FR9815347A 1998-12-04 1998-12-04 WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD Expired - Fee Related FR2786877B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9815347A FR2786877B1 (en) 1998-12-04 1998-12-04 WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD
FR9904248A FR2786878B1 (en) 1998-12-04 1999-04-06 WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD
FR9907348A FR2786879B1 (en) 1998-12-04 1999-06-10 ELECTROMAGNETIC DETECTION DEVICE, METHOD AND STRUCTURE TO BE BURIED
EP99403021A EP1006371A1 (en) 1998-12-04 1999-12-03 Electromagnetic detection device, process and structure to be buried
CA 2291505 CA2291505A1 (en) 1998-12-04 1999-12-03 Electromagnetic device for detecting buried structures and procedure for using it
JP11376332A JP2000206265A (en) 1998-12-04 1999-12-06 Electromagnetic detection device and method, and structure for burying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9815347A FR2786877B1 (en) 1998-12-04 1998-12-04 WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD

Publications (2)

Publication Number Publication Date
FR2786877A1 FR2786877A1 (en) 2000-06-09
FR2786877B1 true FR2786877B1 (en) 2001-02-02

Family

ID=9533601

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9815347A Expired - Fee Related FR2786877B1 (en) 1998-12-04 1998-12-04 WARNING GRID, ELECTROMAGNETIC DETECTION DEVICE, AND IMPLEMENTATION METHOD

Country Status (1)

Country Link
FR (1) FR2786877B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642818A1 (en) * 1989-02-08 1990-08-10 Eurextrusion Sa Device in elongate web form for identifying buried works, particularly non-metallic ones
FR2644248B1 (en) * 1989-03-07 1991-10-31 Hureau Jacques IMPROVEMENT IN UNDERGROUND GRIDS FOR LOCATING UNDERGROUND PIPES
US5106175A (en) * 1989-12-28 1992-04-21 At&T Bell Laboratories Locatable object suitable for underground use and methods of locating same
FR2667952A1 (en) * 1990-10-15 1992-04-17 Plymouth Francaise Sa Device for detecting, identifying and tracking underground pipelines or other optically invisible objects
FR2667953A1 (en) * 1990-10-15 1992-04-17 Plymouth Francaise Sa DETECTABLE DEVICE FOR IDENTIFYING OPTICALLY INVISIBLE OBJECTS.
GB2289602B (en) * 1994-05-12 1998-02-11 Roke Manor Research Improvements in or relating to detection systems
FR2755767B1 (en) * 1996-11-14 1998-12-11 Telecommunications Sa LOCATION, IN PARTICULAR OF NON-METALLIC CABLE

Also Published As

Publication number Publication date
FR2786877A1 (en) 2000-06-09

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Legal Events

Date Code Title Description
ST Notification of lapse