A pilot burner assembly comprises a pilot burner, a flame responsive means, and an electrode, all attached in close relationship to a common mounting bracket. The electrode is frictionally attached co-axially with an insulating sleeve and the sleeve is frictionally attached to the mounting bracket so...http://www.google.com.au/patents/US4337029?utm_source=gb-gplus-sharePatent US4337029 - Pilot burner assembly
