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Class Information
Number: 181/263
Name: Acoustics > Sound-modifying means > Muffler, fluid conducting type > With disparate fluid mingling > Induced by suction > Motion induced
Description: Subject matter wherein the motion of the device on which the muffler is installed creates a vacuum by scooping a fluid as the device moves.

Patents under this class:

Patent Number Title Of Patent Date Issued
8434590 Muffler May. 7, 2013
8323001 Hermetic compressor Dec. 4, 2012
6050284 RV generator auxiliary exhaust system method Apr. 18, 2000
5839473 RV generator auxiliary exhaust system and method Nov. 24, 1998
5590524 Damped heat shield Jan. 7, 1997
5058703 Automotive exhaust noise attenuator Oct. 22, 1991
4792014 Tail pipe for drafting engine exhaust gas Dec. 20, 1988
4778029 Engine air inlet and silencer for motor vehicle Oct. 18, 1988
4766983 Muffler for V-type engine Aug. 30, 1988
4679395 Cleaning means for vehicle exhausting pipe Jul. 14, 1987
4616732 Silencing system for exhaust gases from internal combustion engines Oct. 14, 1986
4487289 Exhaust muffler with protective shield Dec. 11, 1984
4390079 Muffler and exhaust extractor Jun. 28, 1983
4335575 Exhaust back pressure reducer for internal combustion engine Jun. 22, 1982
4331213 Automobile exhaust control system May. 25, 1982
4323139 Energy saving exhaust siphon Apr. 6, 1982
4313523 Automotive exhaust system incorporating venturi to reduce back pressure Feb. 2, 1982
4303143 Exhaust gas control system Dec. 1, 1981
4231221 Exhaust silencer for exhaust systems of internal combustion engines, particularly internal combustion engine-operated manual appliances Nov. 4, 1980
4100994 Marine exhaust silencer Jul. 18, 1978
3952823 Vehicle gas extractor Apr. 27, 1976

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