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US 8,348,709 B1Granted
Method of making a spark plug
AssigneeFram Group IP LLC
InventorsEric Passman, Martin Carlin Baker, Jeffrey Boehler
Life of this patent
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Abstract
A method of making a spark plug includes providing a metal shell, an insulator at least partially disposed in the metal shell, a ground electrode coupled to the metal shell, and a center electrode disposed within the insulator. The method also includes depositing a tip substance on the spark plug to form an electrode tip.
Claims19
A method of making a spark plug comprising:
- providing a metal shell;
- an insulator at least partially disposed in the metal shell;
- a ground electrode coupled to the metal shell;
- and a center electrode disposed within the insulator;
- and
- depositing a tip substance on the spark plug, melting the tip substance, and laser deposition welding the tip substance to the spark plug to form an electrode tip, wherein the steps of depositing the tip substance, melting the tip substance, and laser deposition welding the tip substance to the spark plug are performed in a single operation.
3 more elements
A method of making a spark plug comprising:
- providing a metal shell;
- an insulator at least partially disposed in the metal shell;
- a ground electrode coupled to the metal shell;
- and a center electrode disposed within the insulator;
- laser depositing a tip substance on the center electrode;
- and
- melting the tip substance to form an electrode tip, wherein the step of depositing the tip substance and the step of melting the tip substance are performed in a single operation.
4 more elements
Dependencies are inferred from the claim text.