Global Patent Index - EP 1241280 A1

EP 1241280 A1 2002-09-18 - Process and apparatus for the cathodic protection of a metal structure

Title (en)

Process and apparatus for the cathodic protection of a metal structure

Title (de)

Verfahren und Vorrichtung zum kathodischen Schutz einer metallischen Stuktur

Title (fr)

Procédé et installation pour la protection cathodique d'une structure métallique

Publication

EP 1241280 A1 (FR)

Application

EP 01870041 A

Priority

EP 01870041 A

Abstract (en)

A method for the cathodic protection of a metal structure with the aid of a protective current obtained by the polarization of the structure by a sacrificial anode has the potential of the structure regulated by subjecting a circuit connecting the anode to the structure to some periodic cycles of opening and closing of the circuit in order to modulate the protective current. An Independent claim is also included for an installation for putting this method of cathodic protection into service.

Abstract (fr)

La présente invention se rapporte à un procédé pour la protection cathodique d'une structure métallique (1) à l'aide d'un courant de protection obtenu par polarisation de ladite structure au moyen d'au moins une anode sacrificielle (2), caractérisé en ce qu'on régule le potentiel de la structure en soumettant un circuit reliant l'anode à la structure à des cycles périodiques d'ouverture et de fermeture dudit circuit pour maintenir le potentiel de la structure égal à une valeur prédéterminée, en modulant le courant de protection. <IMAGE>

IPC 1-7 (main, further and additional classification)

C23F 13/04

IPC 8 full level (invention and additional information)

C23F 13/04 (2006.01)

CPC (invention and additional information)

C23F 13/04 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1241280 A1 20020918

INPADOC legal status


2007-03-28 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20061003

2003-06-04 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-04-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030218

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI