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1. (WO1998053540) SPARK PLUG

Pub. No.:    WO/1998/053540    International Application No.:    PCT/GB1998/001434
Publication Date: Fri Nov 27 00:59:59 CET 1998 International Filing Date: Wed May 20 01:59:59 CEST 1998
IPC: H01T 13/32
Applicants: DAWSON ROYALTIES LTD.
DAWSON, Joseph, Gibson
Inventors: DAWSON, Joseph, Gibson
Title: SPARK PLUG
Abstract:
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.