Global Patent Index - EP 1831431 A4

EP 1831431 A4 2009-02-25 - REVERSIBLE POLARITY ELECTRODE SYSTEMS

Title (en)

REVERSIBLE POLARITY ELECTRODE SYSTEMS

Title (de)

ELEKTRODENSYSTEME MIT UMKEHRBARER POLARITÄT

Title (fr)

SYSTEMES D'ELECTRODES A POLARITE REVERSIBLE

Publication

EP 1831431 A4 (EN)

Application

EP 05813571 A

Priority

  • AU 2005001802 W
  • AU 2004906862 A

Abstract (en)

[origin: WO2006058369A1] A method for reversing electrode polarity in an electrolytic cell includes the steps of isolating electrodes of the cell from electrical charges applied thereto, effecting a controlled discharge to a predetermined value of residual charge carried on said electrodes, reversing the polarity of the applied electrical charge and then reapplying said electrical charge whereby the direction of current flow between electrodes is reversed. Suitably, the controlled discharge is effected by interrupting current flow from residual charges in said electrodes before a complete discharge occurs.

IPC 8 full level (invention and additional information)

C25B 15/00 (2006.01); C25B 1/26 (2006.01); C25B 9/00 (2006.01)

CPC (invention and additional information)

C25B 15/02 (2013.01); C02F 1/4608 (2013.01); C02F 2103/42 (2013.01); C02F 2201/46125 (2013.01); C02F 2201/4613 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 2006058369A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

EPO simple patent family

WO 2006058369 A1 20060608; EP 1831431 A1 20070912; EP 1831431 A4 20090225

INPADOC legal status


2009-02-25 [18W] APPLICATION WITHDRAWN

- Effective date: 20081205

2009-02-25 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20090123

2008-03-12 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2007-09-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070616

2007-09-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR