Electric lamp or space discharge component or device manufacturi – Process – Spark plug or spark gap making
Patent
1985-07-19
1991-06-11
Rowan, Kurt
Electric lamp or space discharge component or device manufacturi
Process
Spark plug or spark gap making
H01T 2102
Patent
active
050228811
ABSTRACT:
In a method for making a spark plug (10 and 86) with a predetermined spark gap (37), a method for mounting a center electrode assembly (34 and 85) in an insulator bore (25 and 65). A center electrode blank (48 and 80) is positioned in the insulator bore with a tip (36 and 81) projecting to a predetermined location relative to an external shoulder (22 and 62) on the insulator (11 and 55). A thin walled section (49 and 83) of the center electrode blank located above a step (28 and 67) in the insulator bore is heated and deformed to form a shoulder (39 and 84) contacting the bore step.
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Cooper Industries Inc.
Rowan Kurt
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