Method of manufacturing a spark plug with ground electrode conce

Details Method of manufacturing a spark plug with ground electrode conce Method of manufacturing a spark plug with ground electrode conce

1999-08-05

2000-06-27

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

H01T 122

Patent

active

060800291

ABSTRACT:
A spark plug for an internal combustion engine is provided with a double ringed ground electrode permanently affixed to the spark plug base. One ring is used for the attachment and the other, held apart by one or more legs, is suspended circumferentially and perpendicular to the longitudinal axis of the spark plug a set distance from the center electrode. The method of manufacturing a spark plug comprises the steps of providing a spark plug base, providing a ring shaped ground electrode with enhancements to accomplish shielding and centering of the piece, providing a welding apparatus for rotable welding of said ring shaped ground electrode to said spark plug base, providing an alignment tool for aligning said ring shaped ground electrode with said spark plug base, aligning the ring shaped ground electrode with said spark plug base and welding the ring shaped ground electrode to said spark plug base to form a spark plug.

REFERENCES:
patent: 4268774 (1981-05-01), Forkum, Jr.
patent: 4810220 (1989-03-01), Moore
patent: 5092803 (1992-03-01), Johnson
patent: 5280214 (1994-01-01), Johnson
patent: 5408961 (1995-04-01), Smith
patent: 5430346 (1995-07-01), Johnson

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