Global Patent Index - EP 0633637 A1

EP 0633637 A1 19950111 - A spark plug.

Title (en)

A spark plug.

Title (de)

Zündkerze.

Title (fr)

Bougie d'allumage.

Publication

EP 0633637 A1 19950111 (EN)

Application

EP 94110340 A 19940704

Priority

IT TO930494 A 19930706

Abstract (en)

The plug (1) has a layer (13) of fluorocarbon polymer on the surfaces (11) of the insulating element (3) which are directly exposed to the atmosphere near the central electrode (4) and/or which face the outer tubular metal body (2) so as to prevent the insulating element (3) from being fouled by carbon residues. <IMAGE>

IPC 1-7

H01T 13/14; H01T 13/38

IPC 8 full level

H01T 13/14 (2006.01); H01T 13/38 (2006.01)

CPC (source: EP)

H01T 13/14 (2013.01); H01T 13/38 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB SE

DOCDB simple family (publication)

EP 0633637 A1 19950111; IT 1261082 B 19960508; IT TO930494 A0 19930706; IT TO930494 A1 19950106

DOCDB simple family (application)

EP 94110340 A 19940704; IT TO930494 A 19930706