Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01N - Gas-flow silencers or exhaust apparatus for machines or engines in general; Gas-flow silencers or exhaust apparatus for internal-combustion engines › F01N 1 - Silencing apparatus characterised by method of silencing
Patents for F01N 1 - Silencing apparatus characterised by method of silencing (8,998)
09/1980
09/16/1980US4222456 Sound-suppressing and back pressure-reducing apparatus and method
09/16/1980CA1085740A1 Noise silencer
09/02/1980US4220219 Lightweight muffler and method for muffling noise
08/1980
08/26/1980US4219100 Muffler for exhaust air or other gas
08/20/1980EP0014257A2 Fluid silencer
08/12/1980CA1083486A1 Louver flow muffler
07/1980
07/22/1980US4213414 Engine exhaust means for motor propelled boats
07/15/1980US4212370 Sound absorber for an intermittently discharged gaseous working medium
07/15/1980US4212369 Sound-absorbing covering, especially radiator covering for motor vehicles
07/15/1980US4212259 Marine vessel noise attenuating structure
07/08/1980US4211305 Sound absorbing device
07/08/1980US4211304 Sound absorbing device
07/08/1980US4211303 Sound absorbing device
07/08/1980US4211302 Sound absorbing device
06/1980
06/24/1980US4209493 Combination catalytic converter and muffler for an exhaust system
06/24/1980US4209076 Exhaust silencer for an agricultural tractor
06/10/1980CA1079201A1 Sound suppressor liners
06/10/1980CA1079198A1 High frequency diffusion muffler for gas jets
06/03/1980US4206177 Exhaust silencer including a catalyst
05/1980
05/20/1980US4203503 Exhaust silencer for a railway locomotive
05/20/1980US4203502 Muffler
05/20/1980US4203407 Internal combustion engine with a sound-reducing encapsulation
05/13/1980US4202426 Exhaust gas splitter construction
05/01/1980WO1980000861A1 Noise damping device for piston motored aircraft
04/1980
04/29/1980US4199936 Gas turbine engine combustion noise suppressor
04/15/1980CA1075610A1 Fluid-flow noise reduction systems
04/08/1980US4196793 Method of and device for attenuating the noise radiated by gas jets
03/1980
03/11/1980US4192404 Muffler for internal combustion engines
03/11/1980US4192403 Muffler for internal combustion engines
03/11/1980US4192402 Muffler for internal combustion engines
03/11/1980US4192401 Complete louver flow muffler
02/1980
02/20/1980EP0008281A1 Exhaust system for a pulsating heat source
02/12/1980CA1071537A1 Muffler for portable power chain-saws and the like
02/07/1980WO1980000167A1 Exhaust system
02/05/1980US4186819 Exhaust system for a two-stroke engine
01/1980
01/29/1980US4185715 Sound-attenuating muffler for exhaust gases
01/29/1980CA1070617A1 Exhaust muffler having an attenuater can assembly
01/23/1980EP0006955A1 Packless silencer.
01/22/1980US4184638 Low noise level, pressure fluid spouting device
01/22/1980US4184565 Exhaust muffler
01/22/1980US4184564 Combination muffler and air filter
01/15/1980US4183344 Low-noise level internal combustion engines
12/1979
12/25/1979US4180141 Distributor for gas turbine silencers
12/18/1979US4178760 Filter dust ejector and check valve arrangement in exhaust system of internal combustion engine
12/11/1979US4177875 Muffler for internal combustion engine
11/1979
11/20/1979CA1066627A1 Method and apparatus to attenuate noise radiated by gas jets
10/1979
10/30/1979US4172508 Exhaust silencers
09/1979
09/18/1979US4167987 Multiple flow marine muffler constructed of resilient material
09/04/1979CA1061642A1 Fluid operated hydraulic pump including noise reduction means
08/1979
08/28/1979US4165798 Muffler for internal combustion engine
08/21/1979US4164989 Muffler, especially for portable internal combustion engine
08/14/1979US4164266 Exhaust gas muffler
07/1979
07/31/1979US4162904 For entrained liquids in high velocity exhaust gas stream
07/24/1979US4161996 Exhaust muffler
05/1979
05/31/1979WO1979000286A1 Packless silencer
05/16/1979EP0001781A1 Process and apparatus for the manufacture of felt from mineral and metallic fibres and article for the lining of exhaust mufflers
05/15/1979CA1054524A1 Air pulse noise damper for a pneumatic tool
05/08/1979US4153136 Muffler
05/01/1979CA1053401A1 Muffler for an explosive powder driven stud setting device
04/1979
04/17/1979US4149611 Device for silencing the exhaust noise of internal combustion engines
04/03/1979US4147230 Combination spark arrestor and aspirating muffler
03/1979
03/27/1979US4145988 Exhaust system for outboard marine propulsion unit
03/13/1979US4143739 Concentric pass-type muffler construction
03/13/1979CA1050436A1 Muffler converter
03/06/1979US4142607 Silencer, especially for portable motor chain saws
02/1979
02/20/1979US4140204 Two-tube muffler and method of manufacture
01/1979
01/30/1979US4136757 Absorption muffler construction
01/23/1979US4135603 Sound suppressor liners
01/23/1979US4135602 Selectively positioned muffler
01/23/1979CA1047071A1 Variable two stage air nozzle
01/16/1979US4134472 Combination muffler and air filter
01/09/1979US4133479 Exhaust gas muffler for an internal combustion engine
01/02/1979US4132286 Muffler
01/02/1979CA1045558A1 Nozzle noise silencer
12/1978
12/26/1978US4131432 Apparatus for the treatment of gas turbine exhaust gas
12/26/1978CA1045043A1 Exhaust system of an internal combustion engine
12/19/1978US4130173 Apparatus and method for reducing flow disturbances in a flowing stream of compressible fluid
12/12/1978US4129196 Fluid acoustic silencer
11/1978
11/28/1978US4127183 Silencer device
11/21/1978US4126205 Automobile exhaust gas muffler construction
11/21/1978CA1042809A1 Free flow sound attenuating device and method of using
11/21/1978CA1042808A1 Exhaust means for internal combustion engines
11/14/1978US4125171 Exhaust gas silencer
11/14/1978CA1042352A1 Exhaust silencer apparatus for internal combustion engine
11/07/1978US4124092 Muffler for automobiles
11/07/1978US4124091 Silencer for an internal combustion engine
10/1978
10/31/1978US4122914 Muffler
10/31/1978US4122913 Silencer
10/24/1978US4121686 Hollow sound-dampened structure
10/24/1978US4121683 Noise silencer assembly
10/10/1978US4119174 Engine muffler
10/10/1978CA1040105A1 Exhaust muffler
10/03/1978CA1039589A1 Exhaust relief silencing apparatus for marine propulsion systems
09/1978
09/26/1978US4116303 Exhaust muffler
09/19/1978CA1038771A1 Muffler
09/19/1978CA1038770A1 Method and device for silencing the exhaust noise of internal combustion engines
09/12/1978US4113052 Unitary elastic muffler assembly for a pneumatic device
09/12/1978US4113051 Engine muffler and spark arrester
09/12/1978US4113050 Fluid-flow noise reduction systems
09/12/1978US4113048 Method of and device for attenuating the noise radiated by gas jets
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