Multi-point spark plug

Details Multi-point spark plug Multi-point spark plug

2006-04-04

2006-04-04

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Plural parallel gaps

C313S141000

Reexamination Certificate

active

07023127

ABSTRACT:
The present invention relates to a multi-point spark plug capable of facilitating the attachment of a plug cap. The multi-point spark plug is made up of two center electrodes, an insulator for accommodating the center electrodes, a housing for holding the insulator and earth electrodes located at one end portion of the housing and each disposed in opposed relation each of the center electrodes in a state where a discharging gap is interposed therebetween. Moreover, first and second terminals to be electrically connected to the center electrodes are provided in a head portion of the insulator. In an outside configuration composed of the head portion and the first and second terminals, a contour between a location of the second terminal and a location of the first terminal is formed axis-symmetrically with respect to an axis of the head portion.

REFERENCES:
patent: 50-14933 (1975-02-01), None
patent: 57-208084 (1982-12-01), None

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