| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 096380000 | WITH SOUND DAMPING MEANS (I.E., NOISE ATTENUATION) | 18 |
| 20110023721 | AIR FILTRATION DEVICE - An air filtration device comprises a housing assembly having at least one first mounting surface and having at least one air outlet, a blower positioned in the housing assembly for blowing air towards the at least one outlet, and a motor for driving the blower. At least one air intake has at least two intake mounting surfaces which are the same as each other and the same as the first mounting surface, wherein the air intake is attached to the housing assembly at one of the first mounting surfaces. At least one of the two intake mounting surfaces is positioned at an acute angle with respect to the other of the two intake mounting surfaces. Also, a muffler can be positioned adjacent the at least one air outlet. The muffler defines an opening operatively connected to the air outlet and the opening has a first cavity having a first volume, a second cavity having a second volume, and a third cavity having a third volume. The second cavity is between the first cavity and the third cavity, and the second volume is greater than both the first volume and the third volume. | 02-03-2011 |
| 20120304867 | OXYGEN CONCENTRATOR - To provide an oxygen concentrator that can reduce pressure loss when suctioning raw air and that can increase the amount of suctioned raw air by an amount of reduction in pressure loss, and moreover that can reduce noise without significantly changing a basic structure of a compressor. The oxygen concentrator includes: a compressor that has a plurality of suction ports suctioning raw air and that generates compressed air by compressing suctioned raw air; a conduit through which the compressed air is sent; a silencer that has a suction side end introducing the raw air and a discharge side end discharging the raw air, with the silencer being connected with the conduit; and a plurality of connection conduits directly connecting the discharge side end of the silencer and the respective suction ports of the compressor. | 12-06-2012 |
| 20130263744 | FILTER ASSEMBLIES; COMPONENTS AND FEATURES THEREOF; AND, METHODS OF USE AND ASSEMBLY - Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. Also, an advantageous resonator/sonic choke arrangement, which is optional and which can be used without the advantageous housing seal, is described. Methods of assembly and use are described. | 10-10-2013 |
| 20130319251 | AIR PURIFIER WITH NOISE CANCELLATION - A method and system for noise cancellation in an air purifier is disclosed. The air purifier employed with a noise cancellation system comprises at least one microphone connected to the air purifier. At least one microprocessor programmable and adaptable to operate with a noise cancellation software is connected in a way to receive signals from the microphone placed inside or near the air purifier. A plurality of speakers connected to the microprocessor outputs the noise cancelled sound waves. The system is adaptable to operate with any conventional air purification filters and is capable to achieve optimum effectiveness without generating undesirable noise. The frequency of the noise cancelling sound waves matches the frequency of unwanted sound. | 12-05-2013 |
| 20150096446 | DUST-COLLECTING DEVICE OF A SECONDARY DUST-COLLECTING MACHINE - A dust-collecting device of a secondary dust-collecting machine includes a wind guide barrel having a wind intake and a bottom disposed with a dust-collecting barrel. The wind guide barrel further has its topside mounted with a wind duct installed thereon with a blowing fan and connected with a dust-collecting box, which has a plurality of centrifugal type dust collectors set therein. Thus, outside dust accompanying air can be sucked into the wind guide barrel through the wind intake by the suction of the blowing fan to have the dust with comparatively large diameter first collected by the dust-collecting barrel. Then, the remaining dust with lighter mass will be collected for a second time by the centrifugal type dust collectors and filtrated by the filter screen for completely filtrating and removing the dust from the operation environment. | 04-09-2015 |
| 20150107458 | PARTICLE FILTER - A particle filter ( | 04-23-2015 |
| 096381000 | Sound absorbing material | 8 |
| 20090044705 | Apparatus for Collecting Smoke and Dust With a Deodorizing Function and a Deodorizing and Filtering Unit - This invention can provide the apparatus for collecting smoke and dust with a deodorizing function which has an excellent capability of maintenance, an improved deodorizing and silencing effect. | 02-19-2009 |
| 20090084268 | MAT MEMBER, METHOD OF FABRICATING MAT MEMBER, EXHAUST GAS TREATING APPARATUS, AND SILENCING DEVICE - A mat member includes inorganic fibers, a first main surface, a second main surface opposite to the first main surface, an edge surface surrounding the first main surface and the second main surface, and an inorganic fiber scattering reduction unit. The inorganic fiber scattering reduction unit is provided on at least a part of the edge surface of the mat member and configured to reduce scattering of the inorganic fibers. | 04-02-2009 |
| 20130167727 | AIR FILTER AND SILENCER - Air filter and silencers comprise an air filter element having an annular body with openings at opposed ends. A top is attached over one of ends, has an outer flange sealed to the element, and includes a central section extending across the air filter element end. The top central section has a convex-shaped geometry with a radius of curvature projecting outwardly and away from the air filter element. The top central section includes a sound deadening material directed towards the air filter element. The top central section has a radius of curvature greater than the radius of an inside diameter of the air filter element. The air filter and silencer is used with an air filter assembly that includes a housing removably attached to the air filter and silencer, and that has an internal chamber projecting axially into the air filter and silencer with a sound deadening material disposed therein. | 07-04-2013 |
| 20150128808 | Filter Component For Motor Vehicle Air Conditioning - A filter component for motor vehicle air conditioning, according to the invention, the filter is comprising a filtration part made of a material able to filter air and a noise reduction part made of a material able to reduce noise. Also disclosed is a filtration assembly comprising the filter component, and a motor vehicle air conditioning device comprising the filtration assembly. | 05-14-2015 |
| 20150135961 | OIL SEPARATOR - An oil separator includes a casing that has an inlet for air and an outlet for air, and an impingement member that is provided inside the casing. Air that contains oil is introduced through the inlet into the casing and caused to strike the impingement member so that the oil is separated from the introduced air and is recovered. The outlet opens in the horizontal direction of the casing. The oil separator further includes an L-shaped elbow member that is attached to the outlet. The elbow member protrudes in the horizontal direction from the outlet and is bent upward. | 05-21-2015 |
| 096382000 | For vacuum cleaner | 1 |
| 20140090563 | CYCLONIC SEPARATOR - A cyclonic separator for a vacuum cleaner that includes a cyclone stage, a chamber and a silencer. The chamber has a plurality of ports through which fluid from the cyclone stage enters the chamber. The silencer is located in the chamber and includes a plurality of baffles. Fluid entering the chamber through the ports collides with the baffles, which act to reduce noise. | 04-03-2014 |
| 096383000 | For internal combustion engine | 2 |
| 20140102304 | FILTER ASSEMBLY WITH SOUND ATTENUATION MEMBER AND RELATED METHOD OF MANUFACTURE - An air filter assembly for an engine includes a filter element, a sound attenuation member and an end cap. The filter element may be a cylindrical filter element defining a hollow interior. The sound attenuation member may extend into the hollow interior of the cylindrical filter element. The sound attenuation member may include a flange at a first end thereof. The flange may have a diameter greater than a diameter of the hollow interior. The end cap may be secured to the cylindrical filter element and may function to fix the sound attenuation member relative to the filter member. The sound attenuation member is operative for reducing engine noise travelling through the air filter assembly. | 04-17-2014 |
| 20140130677 | AIR FILTERING DEVICE IN AN AIR INTAKE LINE OF AN INTERNAL COMBUSTION ENGINE - A filtering device including an inlet orifice, an outlet orifice, and a housing, the housing including an inlet compartment and a filtering element arranged in the housing between the inlet compartment and the outlet compartment so as to filter the flow of air, where the filtering device includes a deflector arranged in the inlet compartment and opposite the inlet orifice so as to deflect the flow of dirty air penetrating into the inlet compartment. | 05-15-2014 |
| 096384000 | Sound attenuating gas flow path | 4 |
| 20150300677 | AIR PURIFICATION APPARATUS - The invention relates to an air purification apparatus. The apparatus is disposed in a window for separating an indoor space and an outdoor space. The apparatus comprising: an inlet chamber having a first inlet, a second inlet and an outlet, wherein the first inlet is operatively open to the outdoor space and the second inlet is operatively open to the indoor space; an air pumping unit for pumping air from the inlet chamber to the indoor space through the outlet, wherein the air is pumped into the inlet chamber through the first inlet or through the second inlet; and a filtering unit disposed upstream of the air pumping unit, for filtering pollutants in the air. | 10-22-2015 |
| 096385000 | Baffle in flow path | 1 |
| 20130305930 | AIR CLEANER ASSEMBLY AND FILTER ELEMENT PROVIDING IMPROVED DYNAMIC WALL STIFFNESS - An air cleaner assembly and a filter element reduce wall noise by rigidly coupling the movement of opposing air cleaner housing sidewalls through the installed filter element. The sidewalls are rigidly coupled through the filter element with the sidewalls coupled to move together in unison such that wall deflection forces created by the pressure pulsations tend to cancel each resulting in improved dynamic stiffening of the air cleaner walls and reduced wall noise. | 11-21-2013 |
| 096387000 | Perforated surface | 1 |
| 20160058254 | Exhaust Turbulence Attenuator for Industrial and Shop Vacuum Cleaning Units - The invention disclosed is an appliance which, when attached as an accessory to a heavy-duty vacuum cleaning unit such as may be used in industrial applications, as well as in professional and home workshop environments, attenuates exhaust port turbulence on such machines, providing an overall cleaner and safer work environment. | 03-03-2016 |
| 096388000 | Expansion chamber | 1 |
| 20090025564 | Silencer and oxygen concentrator having silencer - Provided are an expansion-type silencer ( | 01-29-2009 |
