Pneumatic tire with tread having electrically conductive component underlying and extending through its tread

摘要

This invention relates to a pneumatic rubber tire having a circumferential tread containing an outer tread rubber layer, wherein said outer tread rubber layer contains an outer tire running surface, comprised of an electrically insulating (poorly electrically conducting) rubber composition and wherein said tread additionally contains a circumferential tread component in a form of an inverted“T”configuration comprised of a relatively electrically conducting rubber composition (relative to said outer tread rubber strip) wherein the stem of said inverted“T”configured tread component extends through said outer tread rubber layer to its running surface to thereby provide a path of least electrical resistance through said outer tread strip to its running surface and wherein the base of said“T”configured tread component underlies a portion of said outer tread rubber layer and is less than, and therefore not entirely co-extensive with, the axial width of said outer tread rubber layer.