Global Patent Index - EP 1257689 A1

EP 1257689 A1 2002-11-20 - DEVICE FOR SHORT CIRCUITING ELECTROLYTIC CELL

Title (en)

DEVICE FOR SHORT CIRCUITING ELECTROLYTIC CELL

Title (de)

EINRICHTUNG ZUM KURZSCHLIESSEN VON ELEKTROLYSEZELLEN

Title (fr)

DISPOSITIF DE COURT-CIRCUITAGE DE CELLULE D'ELECTROLYSE

Publication

EP 1257689 A1 (FR)

Application

EP 01907741 A

Priority

  • FR 0100375 W
  • FR 0001925 A

Abstract (en)

[origin: WO0159184A1] The invention concerns a device for short-circuiting an electrolytic cell (18), connected in series to at least another electrolytic cell in an electrolysis room, designed to be connected to the terminals of the electrolytic cells such that it is no longer powered. Said device comprises a variable resistance (20) whereof the value is defined by a controller (24) on the basis of the voltage value at the terminals of the cell detected by a sensor (22) so that said voltage should have a value at least equal to a predetermined minimum value for preventing the formation of a backward current inside the cell, said backward current being due to an electromotive force produced inside the cell when the latter is no longer powered.

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

C25B 15/00; C25B 9/04

IPC 8 full level (invention and additional information)

C25B 9/04 (2006.01); C25B 15/00 (2006.01)

CPC (invention and additional information)

C25B 9/045 (2013.01); C25B 15/00 (2013.01)

Citation (search report)

See references of WO 0159184A1

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

WO 0159184 A1 20010816; AU 3563801 A 20010820; EP 1257689 A1 20021120; FR 2805098 A1 20010817; FR 2805098 B1 20031017

INPADOC legal status


2004-11-03 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040423

2004-01-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031212

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020909

2002-11-20 [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

2002-11-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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