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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 4901816 |
Light weight hybrid exhaust muffler |
Feb. 20, 1990 |
| 4901815 |
Stamp formed mufflers |
Feb. 20, 1990 |
| 4884657 |
Muffler |
Dec. 5, 1989 |
| 4860852 |
Assembly for mounting an exhaust system on an exhaust gas source source of an internal combustion engine |
Aug. 29, 1989 |
| 4860853 |
Stamp formed muffler with nonplanar array of tubes |
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 |
| 4565260 |
Mechanical lock joint for vehicular exhaust system muffler and the like |
Jan. 21, 1986 |
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