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| Number | Title | Issue Date |
| 8146708 | Muffler with integrated catalytic converter and polymeric muffler body Disclosed is a muffler (1, 21, 41) integrated with a catalytic converter bed (9, 32, 52) including a polymeric muffler body (2, 22, 42), an inlet pipe (3, 23, 43) in flow communication with engine exhaust, said inlet pipe connected to a f... | 04/03/2012 |
| 8047328 | Plastic muffler and method for making same A muffler adapted for connection with an exhaust pipe of an internal combustion engine which has an outer housing constructed of a plastic material. The housing has an inlet and at least one inwardly protruding rib extends around the interior of the housing inlet. T... | 11/01/2011 |
| 7934580 | Long fiber thermoplastic composite muffler system The present invention relates to a muffler facia assembly including a muffler with at least one thermoplastic shell formed into a facia assembly on a motor vehicle. The facia may be any suitable body part of a motor vehicle, such as a bumper, a rocker panel, an air ... | 05/03/2011 |
| 7325652 | Bumper/muffler assembly A bumper/muffler assembly is provided comprising a bumper; and a muffler having an outer shell. The outer shell may be formed from a non-high impact resistant material, such as a thin metal or a composite material. The muffler may comprise a separate element from th... | 02/05/2008 |
| 7240768 | Flapper finger valve A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 07/10/2007 |
| 7052343 | Personal watercraft A personal watercraft is disclosed. The personal watercraft typically includes a body formed by a hull and a deck covering the hull from above and having an inner space defined by the hull and the deck, an engine accommodated in the inner space of the body, and an e... | 05/30/2006 |
| 6543577 | Silencer A silencer (10) includes a polymeric casing (12) spaced from at least one inlet pipe and at least one outlet pipe by polymeric spacers (52). The polymeric spacers are made from a different material to that of the polymeric casing. The polymeric spacers ar... | 04/08/2003 |
| 5723828 | Hollow plastic product having a sound attenuator A hollow plastic product having a sound/noise attenuating function is provided. The product includes a duct (1) defining a flow passage and extending over a length along a longitudinal axis, a resonator (1b) having an internal chamber (1b') and a connecto... | 03/03/1998 |
| 5542824 | Refrigerant compressor having interconnected muffler section A compressor includes a motor for reciprocating a piston which sucks-in refrigerant through an inlet, and discharges compressed refrigerant through an outlet. A cylinder head forms a discharge chamber communicating with the outlet, and also forms a recess... | 08/06/1996 |
| 5468923 | Molded muffler A polymeric muffler including two halves each with baffle walls and gas flow openings integrally molded therein. The gas flow openings do not intersect with the mating edges of the baffle walls. The muffler halves are joined along the mating edges of the ... | 11/21/1995 |
| 5424494 | Noise-attenuating internal combustion engine air intake system Noise is attenuated by a resonator having an inlet pipe leading to an expansion chamber and an outlet pipe leading from the expansion chamber. The two pipes are not aligned with each other at the expansion chamber. The portions of the two pipes proximate ... | 06/13/1995 |
| 5321214 | Arrangement for disposing silencer of automobile In an automobile, a silencer connected to an exhaust pipe includes a casing made of thermally resistant synthetic resin and provided at an inner surface with a thermally insulating material. The silencer is disposed between a side frame and a side body an... | 06/14/1994 |
| 5302783 | Resonator In general, sound resonators or mufflers are bulky self-contained metal bodies, which are expensive to produce and to install in an engine intake or exhaust system. A relatively simple substitute, which can be tailor made to attenuate sound at various fre... | 04/12/1994 |
| 5052513 | Noise reductive resin muffler for exhaust system in combustion engine In order to accomplish the aforementioned and other objects, a resin muffler, according to the invention, is formed of a heat-resistantive synthetic resin having a property of visco-elastic plasticity in a predetermined temperature range. In the visco-ela... | 10/01/1991 |
| 4993513 | Muffler A muffler includes an outer box fitted over and attached to an exhaust pipe. The muffler also has a connecting member of a noncircular cross section fixed to said exhaust pipe and interposed between the exhaust pipe and the outer box.... | 02/19/1991 |
| 4988268 | Air compressor An air compressor comprises an air-compressing section and a pulsation-absorbing tank which are arranged isolated from each other, a nozzle, provided for one of the compressing section and the pulsation-absorbing tank, for supplying compressed air from th... | 01/29/1991 |
| 4880078 | Exhaust muffler An exhaust muffler for use with an internal combustion engine has at least one internal suppression chamber, at least one inlet pipe for receiving exhaust gases from the internal combustion engine, and at least one outlet pipe vented to atmosphere. The ex... | 11/14/1989 |
| 4844193 | Noise absorber for drive shafts A drive shaft has a noise absorber consisting of a rubber cup-shaped element inserted in the drive shaft and a plastic insert that presses the cup-shaped element against the interior wall against the drive shaft.... | 07/04/1989 |
| 4474260 | Fluid operated vacuum device having improved exhaust muffler A fluid operated vacuum device for manipulating a workpiece includes a rectangularly shaped metal body having a plurality of fluid passageways therein. One passageway communicates with a suction cup for creating a vacuum between the cup and the workpiece.... | 10/02/1984 |
| 4449610 | Muffler for compressor for refrigerating apparatuses A muffler on the intake tube in a hermetically sealed compressor for refrigerating apparatuses in direct communication with the intake chamber located in the compressor cylinder head. The body of the muffler, preferably made of plastic material, consists ... | 05/22/1984 |
| 4408679 | Sound attenuator A sound attenuator for reducing noise and vibration generated by flow of air, particularly air laden with moisture, particulates and corrosive substances. The sound attenuator comprises a tubular housing and a layer of sound attenuating material, such as ... | 10/11/1983 |
| 4239091 | Muffler A muffler having a tubular cylindrical fiber-reinforced resin body with tapered extremities ending in short necks, through said body being disposed an axial aluminum tube with extremities projecting outwardly from the assembly, said tube being perforated ... | 12/16/1980 |
