Patent ID: 8794585

Claim:
A coulomb damper in combination with an exhaust system, the combination comprising: a canister having an inner member with a curved inner surface and an outer member with a curved inner surface, said inner member and said outer member defining a closed chamber; an impact media disposed within said chamber, said impact media being selected from one of metal shot and sand, said impact media extending entirely between said curved inner surfaces and being in direct contact with both of said curved inner surfaces over an entire circumferential length of said curved surfaces in said chamber, said impact media extending over a portion of said canister in an axial direction; a component of said exhaust system separate from said canister, a curved concave outer surface of said inner member of said canister being in close proximity with an outer surface of said component of said exhaust system; wherein said outer surface of said inner member of said canister defining a first convex portion at a first side of said inner member, the first convex portion extending over an entire length of said canister in the axial direction; said outer surface of said inner member of said canister defining a second convex portion at a second side of said inner member opposite to said first side, the second convex portion extending over the entire length of said canister in the axial direction; and the first and second convex portions are in direct contact with said outer surface of said component of said exhaust system.