Patent ID: 8534056

Claim:
A temperature control device for an exhaust apparatus for a motor vehicle, comprising: a generally cylindrical body having an entrance tube at one end, and an exit tube at an opposite end; plates being in an approximately parallel, spaced apart relationship and being approximately perpendicular to the generally cylindrical body, and a vent being located between the plates; wherein the plates comprise a first plate and a second plate; each plate having a peripheral edge, a central aperture, and peripheral apertures arranged radially between the central aperture and the peripheral edge; a central aperture wall surrounding the central aperture and extending from the first plate and through the central aperture of the second plate; peripheral aperture walls surrounding the peripheral apertures and extending from the first plate and through the peripheral apertures of the second plate; a central aperture wall surrounding the central aperture of the second plate and extending from the second plate; peripheral aperture walls surrounding the peripheral apertures and extending from the second plate; a first shield extending radially and outwardly from the peripheral edge of the first plate; wherein the first plate and the second plate are nested; and wherein the first shield extends outwardly from the body toward the exit tube.