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Class Information
Number: 181/246
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > Corrosion prevention > Nonmetallic
Description: Subject matter wherein the fluid conducting device is constructed of organic materials.










Patents under this class:

Patent Number Title Of Patent Date Issued
8505682 Lightweight polymeric exhaust components Aug. 13, 2013
8490745 Exhaust system component Jul. 23, 2013
8485314 Exhaust muffler Jul. 16, 2013
8424636 Muffler assembly and process of manufacture Apr. 23, 2013
8418805 Muffler for vehicle Apr. 16, 2013
8146708 Muffler with integrated catalytic converter and polymeric muffler body Apr. 3, 2012
8047328 Plastic muffler and method for making same Nov. 1, 2011
7942237 Long fiber thermoplastic composite muffler system with integrated reflective chamber May. 17, 2011
7934580 Long fiber thermoplastic composite muffler system May. 3, 2011
7810609 Muffler Oct. 12, 2010
7730996 Long fiber thermoplastic composite muffler system with integrated crash management Jun. 8, 2010
7543683 Vehicle resonator structure and attachment method Jun. 9, 2009
7325652 Bumper/muffler assembly Feb. 5, 2008
6543577 Silencer Apr. 8, 2003
5723828 Hollow plastic product having a sound attenuator Mar. 3, 1998
5542824 Refrigerant compressor having interconnected muffler section Aug. 6, 1996
5468923 Molded muffler Nov. 21, 1995
5424494 Noise-attenuating internal combustion engine air intake system Jun. 13, 1995
5321214 Arrangement for disposing silencer of automobile Jun. 14, 1994
5302783 Resonator Apr. 12, 1994
5052513 Noise reductive resin muffler for exhaust system in combustion engine Oct. 1, 1991
4993513 Muffler Feb. 19, 1991
4988268 Air compressor Jan. 29, 1991
4880078 Exhaust muffler Nov. 14, 1989
4844193 Noise absorber for drive shafts Jul. 4, 1989
4474260 Fluid operated vacuum device having improved exhaust muffler Oct. 2, 1984
4449610 Muffler for compressor for refrigerating apparatuses May. 22, 1984
4408679 Sound attenuator Oct. 11, 1983
4239091 Muffler Dec. 16, 1980











 
 
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