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Class Information
Number: 181/243
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With repair, replacement, or quick disassembly
Description: Subject matter having means to facilitate the repair of damaged parts or elements of the muffling device.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
5280142 Heat shielded exhaust system component Jan. 18, 1994
5268541 Sound attenuator for low frequencies, in particular for air ducts in paper mills Dec. 7, 1993
5266755 Car silencer for absorbing sound and exhaust pollutants Nov. 30, 1993
5206467 Muffler with a catalyst Apr. 27, 1993
5146052 Muffler for internal-combustion engine exhaust gases and method of assembly thereof Sep. 8, 1992
5123816 Compressor suction noise attenuator and assembly Jun. 23, 1992
5121810 Muffler cover Jun. 16, 1992
5101886 Combination power and heat unit Apr. 7, 1992
5097924 Muffler for a compressed air driven motor Mar. 24, 1992
5080379 Muffler having a sheet-steel seal Jan. 14, 1992
5058381 Low restriction exhaust treatment apparatus Oct. 22, 1991
5036947 Exhaust pipe shield Aug. 6, 1991
5035211 Internal combustion engine Jul. 30, 1991
5025986 Heating system for a motor vehicle with an air-cooled rear engine Jun. 25, 1991
5004069 Stamp formed muffler with transverse baffle tube Apr. 2, 1991
4998597 Insulated exhaust pipe attachment means Mar. 12, 1991
4993513 Muffler Feb. 19, 1991
4972921 Muffler for internal combustion engines Nov. 27, 1990
4958701 Stamp formed muffler with pocket-free baffle crease Sep. 25, 1990
4924967 Exhaust manifold May. 15, 1990
4924968 Stamp formed muffler with reinforced outer shell May. 15, 1990
4921040 Power thermo-coupling unit May. 1, 1990
4909348 Stamp formed exhaust muffler with conformal outer shell Mar. 20, 1990
4905791 Light weight hybrid exhaust muffler and method of manufacture Mar. 6, 1990
4901815 Stamp formed mufflers Feb. 20, 1990
4901816 Light weight hybrid exhaust muffler Feb. 20, 1990
4884657 Muffler Dec. 5, 1989
4860853 Stamp formed muffler with nonplanar array of tubes Aug. 29, 1989
4860852 Assembly for mounting an exhaust system on an exhaust gas source source of an internal combustion engine Aug. 29, 1989
4858722 Self-contained muffler attachment and conversion kit for small two-cycle engines Aug. 22, 1989
4854417 Exhaust muffler for an internal combustion engine Aug. 8, 1989
4846301 Silencer Jul. 11, 1989
4846302 Acoustic muffler Jul. 11, 1989
4846300 Plastic air intake silencer box for marine engine Jul. 11, 1989
4832151 Muffler cover for internal combustion engine May. 23, 1989
4821840 Stamp formed exhaust muffler with conformal outer shell Apr. 18, 1989
4793544 Method of producing a multi-layer tube of a muffler Dec. 27, 1988
4756383 Muffler with adjustable bushing Jul. 12, 1988
4749058 Muffler Jun. 7, 1988
4745988 Device for conducting away the exhaust gases from internal combustion engines May. 24, 1988
4685534 Method and apparatus for control of fluids Aug. 11, 1987
4674594 Silencer and a method of manufacturing the silencer Jun. 23, 1987
4667770 Sound attenuator May. 26, 1987
4635752 Universal muffler construction assembly Jan. 13, 1987
4616732 Silencing system for exhaust gases from internal combustion engines Oct. 14, 1986
4609067 Heat shield for a vehicular muffler Sep. 2, 1986
4585091 Apparatus for repairing or protecting an engine exhaust system Apr. 29, 1986
4576247 Locking member Mar. 18, 1986
4570747 Mechanical lock joint for joining tubular products Feb. 18, 1986
4570322 Adapter for mounting an exhaust muffler to an internal combustion engine and method for installing same Feb. 18, 1986

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