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Class Information
Number: 181/236
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With muffler cut-out
Description: Subject matter comprising a valve device which can be utilized for diverting the moving fluid away from the fluid conducting attenuating device which performs the muffling operation.










Patents under this class:

Patent Number Title Of Patent Date Issued
7896130 Snap action valve with inertia damper Mar. 1, 2011
7325651 Motorcycle exhaust system Feb. 5, 2008
7244108 Hermetic compressor with an improved cylinder head-suction muffler assembly Jul. 17, 2007
7240768 Flapper finger valve Jul. 10, 2007
6899199 Flapper finger valve assembly May. 31, 2005
6382348 Twin muffler May. 7, 2002
5959263 Bypass muffler Sep. 28, 1999
5804777 Suction noise muffler for hermetic compressor Sep. 8, 1998
5743088 Triad exhaust system Apr. 28, 1998
5452578 Exhaust cutout device Sep. 26, 1995
5097664 Method for controlling exhaust system of vehicle Mar. 24, 1992
4926636 Engine-control apparatus May. 22, 1990
4926635 Exhaust system for multi-cylinder engine May. 22, 1990
4920747 Header dump assembly May. 1, 1990
4913260 Gas silencing system with controlling sound attenuation Apr. 3, 1990
4903486 Performance responsive muffler for internal combustion engines Feb. 27, 1990
4901528 System for suppressing noise due to exhaust gas from motor vehicle Feb. 20, 1990
4866933 Exhaust silencer Sep. 19, 1989
4840030 Tail pipe structure of control type muffler Jun. 20, 1989
4779705 Header exhaust adapter Oct. 25, 1988











 
 
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