Patent ID: 8853926
Filing Date: 2014-10-07
Classification: H01T

Abstract:
1. A spark plug, comprising: a body comprising a first end, a second end, an insulating portion and a shell portion, wherein the shell portion comprises an exterior threaded section, a nut section positioned below the threaded section, and an electrically conductive tubular firing ring positioned above and axially extending a predetermined distance from the threaded section, the firing ring including at least one aperture formed therethrough and terminating at an upper surface; and a center electrode having a tubular portion extending through the body and comprising a terminal end extending beyond the first end of the body, the terminal end being configured for communicating with an ignition system of a vehicle, and a firing end extending beyond the second end of the body, the firing end comprising a plurality of elongated and substantially rectangular tines, each tine comprising a first section extending radially from the firing end and a second section substantially perpendicular to the first section and extending axially and substantially parallel with a central axis of the body toward the upper surface of the firing ring and terminating at a tip, wherein the insulating portion electrically isolates the shell portion from the center electrode, the insulating portion extending upward axially above the threaded section and about the center electrode to a height spaced apart from the first section and substantially corresponding to the tip, and wherein the tubular portion and the plurality of tines are integrally formed from a unitary piece of material.