High thread spark plug with undercut insulator

Details High thread spark plug with undercut insulator High thread spark plug with undercut insulator

2010-04-01

2011-10-04

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

C313S144000

Reexamination Certificate

active

08030831

ABSTRACT:
A spark plug for an internal combustion engine, the spark plug having an elongated center electrode having a center electrode tip at one end and a terminal proximate to another end of the center electrode; an insulator surrounding a portion of the center electrode, the insulator having a channel formed in an exterior surface of the insulator; and a jamb nut surrounding the insulator, the jamb nut being aligned with the channel such that a distal end of the jamb nut does not contact the insulator.

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patent: 2009/0189505 (2009-07-01), Below
patent: 2009/0189506 (2009-07-01), Below

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