Global Patent Index - EP 1100981 A1

EP 1100981 A1 2001-05-23 - CATHODIC PROTECTION METHODS AND APPARATUS

Title (en)

CATHODIC PROTECTION METHODS AND APPARATUS

Title (de)

KATHODISCHE SCHUTZVERFAHREN UND VORRICHTUNG

Title (fr)

PROCEDES ET APPAREIL DE PROTECTION CATHODIQUE

Publication

EP 1100981 A1 (EN)

Application

EP 98907386 A

Priority

  • US 9802308 W
  • US 6066697 P

Abstract (en)

[origin: WO9918261A1] Apparatus, compositions and methods provide cathodic protection to a structure by placing an anode layer (10) directly between the structure (22) and its underlying foundation (30). Structures contemplated to be protected in this manner include especially very large structures such as above ground storage tanks. In one aspect of preferred embodiments, the anode layer (10) comprises sheets of at least 85 % aluminum with other alloying elements such as magnesium (0.05 to 6 %), zinc (0.1 to 8 %), indium (0.005 to 0.03 %) and tin (0.05 to 0.2 %) added for the purposes of optimizing current yield, polarization and ease of manufacturing the sheet. In another aspect of preferred embodiments, the anode layer (10) comprises at least two overlapping sheets.

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

C23F 13/00

IPC 8 full level (invention and additional information)

B65D 90/04 (2006.01); C23F 13/00 (2006.01); C23F 13/14 (2006.01); C23F 13/16 (2006.01)

CPC (invention and additional information)

C23F 13/16 (2013.01); C23F 13/14 (2013.01); C23F 2201/00 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9918261 A1 19990415; AU 6320298 A 19990427; AU 746899 B2 20020502; BR 9812714 A 20000822; CA 2305357 A1 19990415; CA 2305357 C 20040427; CN 1207443 C 20050622; CN 1309727 A 20010822; EP 1100981 A1 20010523; EP 1100981 A4 20020731; JP 2001519478 A 20011023; JP 3645180 B2 20050511; KR 20010030856 A 20010416

INPADOC legal status


2008-04-16 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: FLUOR TECHNOLOGIES CORPORATION

2002-12-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021025

2002-07-31 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020614

2002-07-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2002-07-31 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 23F 13/00 A, 7C 23F 13/16 B, 7C 23F 13/14 B

2001-05-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010331

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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