Patent ID: 7513681

Claim:
A mixing element comprising: a body having: an outside surface comprising a reduced diameter section that is interposed between a first flanged end section positioned adjacent a first axial end and a second flanged end section positioned adjacent a second axial end opposite the first axial end; a fluid inlet port disposed within the body and defined by a first wall portion, the fluid inlet port extending axially a distance inwardly into the body from a fluid inlet port opening positioned at the first axial end; a fluid outlet port disposed within the body and defined by a second wall portion, the fluid outlet port extending axially a distance inwardly into the body from a fluid outlet port opening positioned at the second axial end, wherein the body includes an inner wall that separates the fluid inlet port from the fluid outlet port; a single set of fluid outlet passages extending radially through the first wall portion, each of the fluid outlet passages extending substantially within a first plane perpendicular to a longitudinal axis of the body; and a single set of fluid inlet passages extending radially through the second wall portion, each of the fluid inlet passages extending substantially within a second plane perpendicular to the longitudinal axis.