Patent ID: 8237341
Filing Date: 2012-08-07
Classification: H01T

Abstract:
1. A spark ignition device, comprising: a ceramic insulator; a metal shell surrounding at least a portion of said ceramic insulator and extending along a central axis between an upper terminal end and a lower fastening end, said fastening end having a substantially planar surface extending transversely to said central axis and having a pair of projections diametrically opposite one another extending axially from said substantially planar surface away from said terminal end to free ends; a center electrode assembly received at least in part in said ceramic insulator; and an elongate ground electrode having opposite sides extending along a length of said ground electrode between opposite ends and having opposite faces with a sparking surface attached to one of said faces, said one face being sunk axially into said free ends of said projections with at least a portion of said opposite sides being surrounded by said projections.