Back to results
US 4,890,691 AGranted
Muffler
OwnerChen Ching-hoinventor
Life of this patent
Estimating the term…
Abstract
A muffler for impeding and reflecting exhaust to reduce the formation of sound waves through a plurality of cone and barrier assemblies alternately and longitudinally spaced in a cylindrical body, with the apex of a conical member of each cone assembly and an outwardly extending cylindrical portion of each barrier assembly being directed towards the input end of the body. Exhaust flow paths for dissipating exhaust noise are defined by orifices formed in the conical members and cylindrical portions, and spaces between spokes joining each conical member to a circular member.
Claims10
A muffler comprising:
- (a) a hollow cylindrical body having an input end and an output end;
- (b) a plurality of cone assemblies longitudinally spaced along an interior of the body, each cone assembly including a conical member having an apex directed towards the input end of the body and aligned with a longitudinal axis thereof;
- (c) a plurality of barrier assemblies longitudinally spaced along the interior of the body and alternately disposed between the cone assemblies, each barrier assembly including a round plate provided with a central circular opening and an open ended hollow cylindrical portion surrounding the opening and extending outwardly of the plate towards the input end of the body;
- and
- (d) each cone assembly and each barrier assembly being provided with a plurality of exhaust flow paths therethrough.
2 more elements
Dependencies are inferred from the claim text.