Global Patent Index - EP 0983621 A1

EP 0983621 A1 2000-03-08 - SPARK PLUG

Title (en)

SPARK PLUG

Title (de)

ZÜNDKERZE

Title (fr)

BOUGIE D'ALLUMAGE

Publication

EP 0983621 A1 (EN)

Application

EP 98921648 A

Priority

  • GB 9801434 W
  • GB 9710085 A
  • GB 9715035 A

Abstract (en)

[origin: WO9853540A1] A spark plug for an internal combustion engine is described. The spark plug includes at least a cathode and an anode ground electrode between which a spark is formed wherein the part of the ground electrode on which the spark impinges is in the form of at least one low area projection such as a spike and an end of the cathode adjacent the ground electrode may have a recessed form.

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

H01T 13/32; H01T 13/20

IPC 8 full level (invention and additional information)

H01T 13/20 (2006.01); H01T 13/32 (2006.01)

CPC (invention and additional information)

H01T 13/32 (2013.01)

Citation (search report)

See references of WO 9853540A1

Designated contracting state (EPC)

BE DE ES FR

EPO simple patent family

WO 9853540 A1 19981126; AU 7443098 A 19981211; EP 0983621 A1 20000308; JP 2001525982 A 20011211

INPADOC legal status


2002-06-19 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011201

2000-03-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991210

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FR