Global Patent Index - EP 0991820 A1

EP 0991820 A1 2000-04-12 - ELECTRICALLY-CONDUCTING ELEMENT

Title (en)

ELECTRICALLY-CONDUCTING ELEMENT

Title (de)

ELEKTRISCH LEITFÄHIGES ELEMENT

Title (fr)

ELEMENT ELECTRIQUEMENT CONDUCTEUR

Publication

EP 0991820 A1 (EN)

Application

EP 98930933 A

Priority

  • GB 9801841 W
  • GB 9713235 A

Abstract (en)

[origin: WO9859117A1] A land drain (1) to be used for the electrokinetic drainage of soil is made by integrally extruding a biplanar mesh structure tube (2) of electrically-conducting plastics material so that the tube (2) is of trellis construction. Every alternate longitudinal outer strand (3) contains a tinned copper wire (4) which is passed through the stationary outer die of the die head as the respective strand (3) is extruded. The tube or core (3) so formed is wrapped with a suitable drainage filter fabric (6).

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

E02D 3/11; B29D 28/00; E02D 31/02

IPC 8 full level (invention and additional information)

E02D 3/11 (2006.01); B29C 47/02 (2006.01); B29C 70/88 (2006.01); E02D 3/10 (2006.01); E02D 31/02 (2006.01)

CPC (invention and additional information)

E02D 3/10 (2013.01); B29C 47/027 (2013.01); B29C 70/885 (2013.01); B29C 47/0026 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/737 (2013.01); E02D 2200/17 (2013.01)

Citation (search report)

See references of WO 9859117A1

Designated contracting state (EPC)

DE IT SE

EPO simple patent family

WO 9859117 A1 19981230; AU 8120998 A 19990104; EP 0991820 A1 20000412; GB 2327686 A 19990203; GB 2342363 A 20000412; GB 2342363 B 20020327; GB 9713235 D0 19970827; GB 9813432 D0 19980819; GB 9930073 D0 20000209; HK 1026930 A1 20020719; JP 2002506494 A 20020226

INPADOC legal status


2003-10-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030423

2000-06-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000428

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE IT SE