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Class Information
Number: 181/262
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With disparate fluid mingling > Induced by suction
Description: Subject matter wherein the device is provided with openings for admitting the fluid through said opening as a result of a vacuum created by the moving exhaust fluids.










Sub-classes under this class:

Class Number Class Name Patents
181/263 Motion induced 21


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8485313 Muffler and engine system Jul. 16, 2013
8210309 Channeling gas flow tube Jul. 3, 2012
8141679 Absorptive muffler suspension Mar. 27, 2012
8136350 Catalytic muffler having crossover passageway for secondary air Mar. 20, 2012
8056327 Micro-venturi exhaust cooling device Nov. 15, 2011
7971432 Flow diffuser for exhaust pipe Jul. 5, 2011
7958966 Exhaust stack fairing Jun. 14, 2011
7854296 Passive secondary air muffler Dec. 21, 2010
7845465 Vehicular exhaust resonator with cooling feature Dec. 7, 2010
7806230 Absorptive muffler suspension Oct. 5, 2010
7703573 Ported aerodynamic exhaust tailpipe Apr. 27, 2010
7559406 Acoustic fluid machine Jul. 14, 2009
7487858 Acoustic fluid machine Feb. 10, 2009
7353909 Acoustic fluid machine Apr. 8, 2008
7316291 Suction muffler for a hermetic refrigerant compressor Jan. 8, 2008
7299894 Acoustic fluid machine Nov. 27, 2007
7252178 Acoustic fluid machine Aug. 7, 2007
7147082 Suction muffler for a reciprocating hermetic compressor Dec. 12, 2006
6845843 Suction muffler for a refrigerating machine Jan. 25, 2005
6715582 Suction muffler Apr. 6, 2004
6691823 Suction muffler in reciprocating compressor Feb. 17, 2004
6591939 Marine engine silencer Jul. 15, 2003
6385968 Exhaust discharge system with low IR signature May. 14, 2002
6164066 Muffler for internal combustion engine Dec. 26, 2000
5971097 Muffler for motor vehicles Oct. 26, 1999
5902971 Muffler for internal combustion engine May. 11, 1999
5887424 Exhaust apparatus for engine Mar. 30, 1999
5857327 Muffler for an internal combustion engine Jan. 12, 1999
5738184 Muffler for a two-stroke engine Apr. 14, 1998
5431013 Engine exhaust apparatus Jul. 11, 1995
5304748 Methods and apparatuses for muffling power plant steam exhaust Apr. 19, 1994
5284018 Internal combustion engine with exhaust turbine Feb. 8, 1994
5174113 Exhaust outlet with venturi Dec. 29, 1992
5162620 Dual flow turbine engine muffler Nov. 10, 1992
5058704 Turbo jet muffler Oct. 22, 1991
4964383 Water-cooled type internal combustion engine for farming motor vehicle Oct. 23, 1990
4938309 Built-in vacuum cleaning system with improved acoustic damping design Jul. 3, 1990
4907546 Air-cooled type cooling system for engine working machine assembly Mar. 13, 1990
4890690 Exhaust gas muffler for a two-stroke engine Jan. 2, 1990
4867270 Exhaust gas muffler for a two-stroke engine Sep. 19, 1989
4846301 Silencer Jul. 11, 1989
4807439 Exhaust gas system with silencer for a turbocharged internal combustion engine Feb. 28, 1989
4766983 Muffler for V-type engine Aug. 30, 1988
4741411 Muffler system May. 3, 1988
4697668 Aspirating muffler Oct. 6, 1987
4579194 Muffler with catalyst for internal combustion engine Apr. 1, 1986
4471853 Mounting arrangement for an exhaust system Sep. 18, 1984
4444288 Muffler for internal combustion engine Apr. 24, 1984
4388804 Exhaust assembly for tractors Jun. 21, 1983
4355507 System for infrared emission suppression (sires) Oct. 26, 1982

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