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Class Information
Number: 181/231
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With solid particle separator (e.g., spark arrestor, vacuum cleaner, etc.)
Description: Subject matter wherein there is provided additional means which at the same time remove from the moving fluids (exhaust) all entrained dirt particles, sparks, and the like.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8585372 |
Motor/pump assembly |
Nov. 19, 2013 |
| 8522828 |
Insulated double-walled exhaust system component and method of making the same |
Sep. 3, 2013 |
| 8360200 |
Muffler |
Jan. 29, 2013 |
| 8336301 |
Exhaust gas treatment unit |
Dec. 25, 2012 |
| 8307944 |
Muffler |
Nov. 13, 2012 |
| 8210309 |
Channeling gas flow tube |
Jul. 3, 2012 |
| 8132646 |
Exhaust gas muffler |
Mar. 13, 2012 |
| 8091683 |
Motorcycle |
Jan. 10, 2012 |
| 7879142 |
Cyclone dust collector and vacuum cleaner |
Feb. 1, 2011 |
| 7854296 |
Passive secondary air muffler |
Dec. 21, 2010 |
| 7788763 |
Fan motor noise reduction device and vacuum cleaner with the same |
Sep. 7, 2010 |
| 7775323 |
Silencer with fin outlet |
Aug. 17, 2010 |
| 7753979 |
Filter assembly with adjustable inlet opening |
Jul. 13, 2010 |
| 7726443 |
Muffler and working machine |
Jun. 1, 2010 |
| 7601209 |
Multiple flow filter with acoustic silencing |
Oct. 13, 2009 |
| 7601191 |
Apparatus for venting a transmission case |
Oct. 13, 2009 |
| 7537083 |
Silencer containing one or more porous bodies |
May. 26, 2009 |
| 7530428 |
Exhaust deflector for a muffler |
May. 12, 2009 |
| 7530427 |
Exhaust deflector for a muffler |
May. 12, 2009 |
| 7513924 |
Cyclonic separating apparatus |
Apr. 7, 2009 |
| 7487633 |
Device for exhaust gas purification for spark-ignited engines |
Feb. 10, 2009 |
| 7357221 |
Exhaust gas muffler |
Apr. 15, 2008 |
| 7337876 |
Suction apparatus with noise reduction means |
Mar. 4, 2008 |
| 7296657 |
Engine exhaust muffler with exhaust emission control function |
Nov. 20, 2007 |
| 7293629 |
Exhaust apparatus for small-sized engine |
Nov. 13, 2007 |
| 7287622 |
Exhaust muffler |
Oct. 30, 2007 |
| 7228935 |
Attachment pin for an exhaust-gas muffler |
Jun. 12, 2007 |
| 7191849 |
Pneumatic tool |
Mar. 20, 2007 |
| 7191868 |
Combined silencer and spark arrester |
Mar. 20, 2007 |
| 7174991 |
Muffler for internal combustion engine |
Feb. 13, 2007 |
| 7141101 |
Filter assembly with noise attenuation |
Nov. 28, 2006 |
| 7127884 |
Muffler with an integrated catalytic converter |
Oct. 31, 2006 |
| 7062908 |
Construction for exhaust emission control |
Jun. 20, 2006 |
| 6991043 |
Pneumatic tool |
Jan. 31, 2006 |
| 6978605 |
Exhaust emission control system for engine |
Dec. 27, 2005 |
| 6968922 |
Exhaust apparatus for vehicle |
Nov. 29, 2005 |
| 6941751 |
Exhaust muffler and muffler system for use with an internal combustion engine |
Sep. 13, 2005 |
| 6932188 |
Silencer for vacuum cleaner |
Aug. 23, 2005 |
| 6868938 |
Noise-reducing engine enclosure |
Mar. 22, 2005 |
| 6715582 |
Suction muffler |
Apr. 6, 2004 |
| 6702880 |
Inlet silencer/filter for an oxygen concentrator |
Mar. 9, 2004 |
| 6540046 |
Compact economical spark arrestor and muffler |
Apr. 1, 2003 |
| 6467570 |
Spark arrester with spark filter |
Oct. 22, 2002 |
| 6467569 |
Spark arresting muffler with exhaust path parallel to muffler centerline |
Oct. 22, 2002 |
| 6422338 |
Exhaust gas muffler for internal combustion engines |
Jul. 23, 2002 |
| 6393835 |
Exhaust muffler comprising a catalytic converter |
May. 28, 2002 |
| 6170604 |
Exhaust gas muffler |
Jan. 9, 2001 |
| 6164066 |
Muffler for internal combustion engine |
Dec. 26, 2000 |
| 6094774 |
Silencer for a suction cleaner |
Aug. 1, 2000 |
| 6048386 |
Integrated resonator and filter apparatus |
Apr. 11, 2000 |
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