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1 340 825 documents amended

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EP 0171153 A1 19860212 - Spark plug.

Title (en)

Spark plug.

Title (de)

Zündkerze.

Title (fr)

Bougie d'allumage.

Publication

EP 0171153 A1 19860212 (EN)

Application

EP 85304243 A 19850614

Priority

US 62917084 A 19840709

Abstract (en)

A cool operating spark plug (10) is disclosed comprising a fused seal (34) between a spark plug centre electrode (24) and a surrounding insulator body (16). The seal (34) comprises a glassy matrix containing metal particles and provides a heat transfer path from the electrode (24) to the insulator (16).

IPC 1-7

H01T 13/34

IPC 8 full level

H01T 13/20 (2006.01); H01T 13/34 (2006.01)

CPC (source: EP)

H01T 13/34 (2013.01)

Citation (search report)

[Y] GB 1114000 A 19680515 - FORD MOTOR CO
[Y] FR 1009771 A 19520603
[A] US 2047302 A 19360714 - XARDELL CHARLES A
[A] FR 972817 A 19510205

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0171153 A1 19860212; JP S6134877 A 19860219

DOCDB simple family (application)

EP 85304243 A 19850614; JP 14940185 A 19850709