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Class Information
Number: 181/204
Name: Acoustics > Sound-modifying means > Housing or enclosure (e.g., sound confining and absorbing) > Machine type enclosure > Internal-combustion engine
Description: Subject matter wherein the type of machine enclosure is for internal-combustion engines, e.g., automobiles, tractors, lawnmowers, etc.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621370 |
Sound increase apparatus |
Nov. 24, 2009 |
| 7490697 |
Portable acoustic diffuser for portable generators |
Feb. 17, 2009 |
| 7485019 |
Molded motor silencing system having a vibro-acoustic material |
Feb. 3, 2009 |
| 7430992 |
Engine-driven work machine |
Oct. 7, 2008 |
| 7431128 |
Noise absorbing structure of instrument panel |
Oct. 7, 2008 |
| 7395799 |
Primary housing assembly for a motorcycle engine |
Jul. 8, 2008 |
| 7364014 |
Sound absorbing body, sound absorbing structural body, and method of manufacturing these bodies |
Apr. 29, 2008 |
| 7320299 |
Cooling system for liquid-cooled machines |
Jan. 22, 2008 |
| 7201254 |
Machine housing component with acoustic media grille and method of attenuating machine noise |
Apr. 10, 2007 |
| 7201253 |
Soundproofing assembly and a part comprising a wall which if covered with said assembly |
Apr. 10, 2007 |
| 7191753 |
Cover structure for engine |
Mar. 20, 2007 |
| 7188703 |
Device for establishing noise in a motor vehicle |
Mar. 13, 2007 |
| 7182172 |
Sound insulation system |
Feb. 27, 2007 |
| 7131422 |
Construction machine |
Nov. 7, 2006 |
| 7107959 |
Air intake apparatus |
Sep. 19, 2006 |
| 7080619 |
Air intake apparatus |
Jul. 25, 2006 |
| 7080712 |
Soundproof material for vehicle and method of manufacturing the material |
Jul. 25, 2006 |
| 7055649 |
Multi-density sound attenuating laminates and methods of making same |
Jun. 6, 2006 |
| 7011181 |
Sound insulation system |
Mar. 14, 2006 |
| 6988585 |
Sound insulation assembly for mounting in a tubular part, and a tubular part fitted with such assemblies, in particular a motor vehicle part |
Jan. 24, 2006 |
| 6983822 |
Sound absorptive protective mat |
Jan. 10, 2006 |
| 6971475 |
Vehicle trim components with selectively applied foam and methods of making same |
Dec. 6, 2005 |
| 6973193 |
Fan and compressor noise attenuation |
Dec. 6, 2005 |
| 6951263 |
Sound absorber, especially for motor vehicles, and a method for producing a sound absorber |
Oct. 4, 2005 |
| 6896098 |
Lid for muffling noises produced by an internal combustion engine, and method for producing such lid |
May. 24, 2005 |
| 6875066 |
Sound insulation for outboard motors |
Apr. 5, 2005 |
| 6848410 |
Sound transmission device for a motor vehicle |
Feb. 1, 2005 |
| 6817441 |
Shape memory foam member and method of producing the same |
Nov. 16, 2004 |
| 6808045 |
Secondary acoustic attenuator for vehicle |
Oct. 26, 2004 |
| 6805219 |
Engine cover |
Oct. 19, 2004 |
| 6769510 |
Engine cover |
Aug. 3, 2004 |
| 6691667 |
Casing cover having an acoustically decoupled stop |
Feb. 17, 2004 |
| 6688424 |
Noise absorbing device and device for taking air into engine room of a construction machine |
Feb. 10, 2004 |
| 6666297 |
Acoustic shielding article |
Dec. 23, 2003 |
| 6644004 |
Electric riding mower with motor generator set and noise abatement |
Nov. 11, 2003 |
| 6631785 |
Sound attenuating composite articles incorporating scrim material and methods of making same |
Oct. 14, 2003 |
| 6619425 |
Soundproof cover |
Sep. 16, 2003 |
| 6619276 |
Positive crankcase ventilation orifice muffler |
Sep. 16, 2003 |
| 6601673 |
Sound absorbing structure |
Aug. 5, 2003 |
| 6601556 |
Noise insulation structure of synthetic resin made chamber |
Aug. 5, 2003 |
| 6581720 |
Noise attenuating insulated heat shield |
Jun. 24, 2003 |
| 6550571 |
Noise reduction structure for cab of working vehicle |
Apr. 22, 2003 |
| 6512831 |
Noise abatement apparatus for appliance cabinet and method for reducing noise generated by an appliance |
Jan. 28, 2003 |
| 6491133 |
Soundproof type engine driven work machine |
Dec. 10, 2002 |
| 6488001 |
Engine with soundproof cover of injector |
Dec. 3, 2002 |
| 6449934 |
Electric riding mower with motor generator set and noise abatement |
Sep. 17, 2002 |
| 6419535 |
Outboard engine with acoustic seals installed in motor housing opening |
Jul. 16, 2002 |
| 6405825 |
Noise absorption blade mounting structure for working vehicles |
Jun. 18, 2002 |
| 6358106 |
Vibro-acoustic treatment for engine noise suppression |
Mar. 19, 2002 |
| 6340068 |
Use of a material with a high internal damping for a component of a sound-emitting machine |
Jan. 22, 2002 |
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