Muffler for internal combustion engine
Patent 4177875 Issued on December 11, 1979. Estimated Expiration Date: 
January 4, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 4, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2618354 2707525 2950777 3016972 3103256 3512607 3613830 3841841 InventorsAssigneeApplicationNo. 05/866828 filed on 01/04/1978US Classes:181/265, Retroverted181/266, And side branch chamber181/272, Plural chambers181/273, And side branch chamber181/276Side branchExaminersPrimary: Hix, L. T.Assistant: Fuller, Benjamin R. Attorney, Agent or FirmInternational ClassF01N 1/02 (20060101)Foreign Application Priority Data1977-08-15 JPAbstractA muffler for an internal combustion engine includes a cylindrical casing having end plates closing the interior thereof. At least one baffle extending perpendicularly to the central axis of the casing is provided for dividing the interior of the casing into a front chamber and a tuning chamber. A tuning tube extending through the baffle places the front chamber into flow communication with the tuning chamber, and at least one exhaust gas inlet pipe extends into the front chamber through one of the end plates in coaxial relationship with the tuning tube. At least one exhaust gas outlet pipe is provided through the one end plate in parallel relationship with the inlet pipe. Furthermore, one or more openings are provided in the baffle in coaxial relation to the exhaust gas outlet pipe.Field of SearchMultiple distinct inlets and/or outletsWith baffle or baffle structure And side branch chamber Multi-passage Expansion chamber type Plural chambers And side branch chamber And multi-passage Side branch Casings Outlets Manifold type Retroverted Coaxial foraminous walls With alternating partial baffles along the length of casing With adjustable or flexible wall | |
