Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent
1996-10-11
1998-11-17
Chilcot, Richard
Electric lamp and discharge devices
Spark plugs
Particular electrode structure or spacing
313 115, H01T 1302
Patent
active
058380949
ABSTRACT:
An igniter has an inner electrode extending with a forward and rear ceramic sleeve. The rear end of the forward sleeve projects as a sliding fit within the forward end of the rear sleeve. A nickel alloy flange with a flexible shoulder has an inner neck brazed to a nickel layer on the outside of the rear sleeve. An outer collar on the flange is welded to the inside of the outer electrode to form a seal between the outside of the sleeve and the inside of the outer electrode. A metal cap is brazed to a nickel layer at the rear end of the rear sleeve and is welded to the inner electrode to seal the rear end of the rear sleeve.
REFERENCES:
patent: 3745400 (1973-07-01), Meyer
Chilcot Richard
Patel Harshad
Smiths Industries PLC
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