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Class 181/244 - Corrosion prevention


Subclass of Class 181 - Acoustics
Definition: Subject matter comprising means for preventing chemical
No. of patents: 28
Last issue date: 06/29/2010


NumberTitleIssue Date
7743883Noise eliminator for fuel cell
A noise eliminator for a fuel cell, where an outer shell has a reception section in which a sound absorption material is placed between the outer shell and an inner pipe and has a water discharge section that is positioned so as to face a lower portion in the vertic...
06/29/2010
7347044Exhaust water trap
A vertical exhaust water trap assembly has an outer housing and an internal housing or exhaust tube defining an annular water collection spaced therebetween bypassing a central exhaust flow area. ...
03/25/2008
7331422Vortex muffler
A muffler includes an inner passage residing in an outer shell, and a stationary fan residing in the inner passage. The fan creates a vortex in a flow through the inner passage thus improving the flow and reducing the exhaust sound level. The inner passage includes ...
02/19/2008
7249613Energy attenuation device
An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is provided with at least one aperture, for example in a surface th...
07/31/2007
7228888Rotatable liquid reservoir for computer cooling
In a system for liquid cooling of electronics, where the electronics are subject to rotation in space, a liquid coolant storage tank includes a degassing and vortex-preventing structure to allow bubbles to float to the surface of the liquid inside the tank, and also...
06/12/2007
7166367Titanium alloy having excellent high-temperature oxidation and corrosion resistance
A titanium alloy having excellent high-temperature oxidation and corrosion resistance is disclosed which comprises, by mass, Al: 0.30–1.50%, and Si: 0.10–1.0%. Preferably, amass ratio Si/Al is not less than 1/3. More preferably, the titanium alloy further compri...
01/23/2007
7152633Heat shield
The present invention relates to a heat shield for pipes and tubes that is flexible, has an interior insulating layer, and has an exterior reflective layer. A shield may include a flap extending from the shield body for covering a portion of the component not alread...
12/26/2006
7104359Muffler having a baffle with angled plates
A muffler having a baffle with angled plates includes a one piece baffle, a container and two end caps. The one piece baffle has at least three different configurations. The baffle preferably has two, three or four plates, namely “V”, “Z” or “W” shapes. ...
09/12/2006
7036530Energy attenuation device for a fluid-conveying line and method of attenuating energy in such a line
An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of e...
05/02/2006
6668972Bumper/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 elem...
12/30/2003
6582835Coated ferrite stainless steel sheet usable in the automobile exhaust sector
Dip-coated ferrite stainless steel sheet usable in the automobile exhaust sector, characterized in that it comprises a steel core with the following composition by weight: 10.5%ࣘchromiumࣘ20% 0%ࣘaluminumࣘ0.6% 0.003%ࣘcarbonࣘ0.06% 0.003%ࣘnitrogenࣘ...
06/24/2003
6531091Muffler made of a titanium alloy
A muffler of a muffler made of a titanium alloy wherein advantages of lightness and corrosion-resistance that the titanium alloy originally has are used, and heat-resistance and oxidization-resistance are heightened without damaging costs or workability s...
03/11/2003
5739485Motor vehicle exhaust muffler
The invention relates to an exhaust muffler for a motor vehicle, consisting of an external casing (1), an internal casing (2) and a central part (3) consisting of perforated tubing (4) and transverse partitions (5) assembled together to form a chicane, ca...
04/14/1998
5477014Muffler device for internal combustion engines
Layered adsorbent-substrate composites are prepared by methods comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened ...
12/19/1995
4909346Jet engine noise suppression system
A noise suppression system for use with a jet aircraft engine having a plug support cylinder affixed to the engine, a tubular ejector shroud affixed to the engine and encompassing the plug support, the shroud having a reduced internal diameter adjacent th...
03/20/1990
4851298Multi-layer tube of a muffler for an internal combustion engine
A tube of a muffler for an internal combustion engine includes at least two generally rectangular sheets which are joined together at one end by crimping and wound in a tubular configuration to constitute two consecutive layers. In the tubular configurati...
07/25/1989
4729929Highly corrosion resistant aluminized steel sheet for the manufacture of parts of exhaust gas system
A highly corrosion resistant aluminized steel sheet comprising a steel substrate consisting essentially of, in % by weight, up to 0.08% of C, from 0.10 to 1.50% of Si, up to 0.50% of Mn, from 0.10 to 0.50% of Cu, preferably from 0.10 to 0.50% of Ni and/or...
03/08/1988
4695516Heat resistant precoated steel sheet and process for the production thereof
A heat resistant precoated steel sheet suitable for use in the manufacture of a muffler of an automobile exhaust gas system comprising: a hot dip aluminized steel sheet, a chromate pretreatment layer formed on at least one surface of said hot dip aluminized st...
09/22/1987
4598791Exhaust silencer
An exhaust silencer for an internal combustion engine, has an inlet, a noise-attenuation chamber containing a noise-attenuation matrix, and an outlet. The noise-attenuation chamber is of rectangular cross-section, and has one transverse dimension which is...
07/08/1986
4550799Muffler for exhaust gases
A muffler for dissipating the sound component in exhaust gases from an internal combustion engine or the like is disclosed which has an enhanced useful life. The muffler includes a partition positioned across an incoming stream of exhaust gases. The parti...
11/05/1985
4527659Thermally-responsive muffler drainhole valve mechanism
A muffler assembly having a thermally-responsive valve mechanism is disclosed which facilitates draining of moisture from within the muffler assembly without compromise of its sound-attenuating characteristics. The muffler includes an outer muffler body w...
07/09/1985
4421202Sound attenuator
A sound attenuator comprising concentric inner and outer tubular members having sound absorbing material positioned therebetween. The inner tubular member comprises a lattice of reinforcing strand material coated with solidified resin wherein the strand m...
12/20/1983
4402714Method for retarding corrosion in mufflers
A non-catalytic method for extending the life of the metal parts of an automobile muffler which comprises placing an adsorbent mass, preferably of crystalline zeolitic molecular sieve, in the internal space thereof, in sufficient amount to prevent condens...
09/06/1983
4341842Method of coating automotive parts with silicone compositions
A method of coating an automotive part with a room temperature vulcanizable silicone rubber composition comprising applying to the automotive part a thin layer of a composition comprising a silanol end-stopped polysiloxane polymer, an alkyl silicate as th...
07/27/1982
4249375Heat exchanger
A heat exchanger for use with two media, one of which is to be heated up and the other of which is to be cooled down. The heat exchanger has an inlet and an outlet for the medium which is to be cooled down, as well as a plurality of parallel conduits whic...
02/10/1981
4239091Muffler
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
4064963Exhaust for internal-combustion engine
The exhaust of an internal-combustion engine comprises a muffler of malleable aluminum or aluminum alloy with a heat-resistant inner layer extending at least along a wall portion confronting an inlet for the hot exhaust gases. The heat-resistant layer may...
12/27/1977
4026381Exhaust system cover assembly
The present invention provides a cover assembly for an exhaust muffler and tail pipe to reduce noise and eliminate corrosion. The cover assembly is advantageously formed from a pair of molded rigid fiber glass shells that can be fastened together about bo...
05/31/1977
 
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