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7399340 Replacement discharge electrode for electrostatic precipitators and method of assembly  
A replacement discharge electrode including a plurality of tubular telescopically assemblable discharge elements, and a tensioning element, tensioning the cable when the tubular telescopically...
7390351 Electrets and compounds useful in electrets  
An electret filter media that includes a thermoplastic resin and a compound of the formula Y 2 -A(R 1 ) n —Y 1 , where A is benzene, naphthalene or anthracene, Y 1 and Y 2 are each...
7361210 Methods and apparatuses for separating froth  
Methods and apparatuses are provided for separating froth into liquid and gas components. One apparatus includes a container that is configured to hold froth therein and change at least a portion...
7306648 Retainer for use with a corona ground element of an electrostatic precipitator  
A retainer for use with a corona ground element of an electrostatic precipitator is provided according to an embodiment of the invention. The retainer includes a body and a retainer aperture...
7300495 Utilization of high permeability filter fabrics to enhance fabric filter performance and related method  
A flue gas treatment system for a fossil-burning power plant having a fuel source and a boiler includes a barrier filter downstream of the boiler, the barrier filter including an...
7276106 Electrode wire retaining member for an electrostatic precipitator  
An electrode wire retaining member for an electrostatic precipitator is provided according to an embodiment of the invention. The electrode wire retaining member includes one or more flexible arm...
7241330 Air cleaner electrostatic precipitator cell  
An electrostatic precipitator cell is provided according to an embodiment of the invention. The electrostatic precipitator cell includes a connection rod including first and second ends, a length,...
7147821 Treatment process for a gaseous medium containing contaminating particles  
The invention relates to a method for treating a gaseous medium containing contaminating particles, such as microorganisms, bacteria, or viruses. The inventive method consists of generating an...
7094270 Composite filter and method of making the same  
The invention refers to a composite filter for filtering a stream of ambient air including at least one non-prebonded upstream tier and one non-prebonded downstream tier, wherein the ratio of...
7022296 Method for treating flue gas  
A multiple-field precipitator, flue-gas treating device, in accordance with the principles of the invention, includes a first section having a dual-function, sensible-cooling heat...
6984259 Air disinfection apparatus  
An air purification and disinfection apparatus incorporates an air inlet filter ( 1 ) spanning the intake of the apparatus, an ultraviolet light source ( 2 ) for treating the air within a chamber (...
6966939 Multi-layer filter structure and use of a multi-layer filter structure  
The invention describes a multi-layer filter structure and the use of a multi-layer filter structure for the dust removal from gases, wherein a coarse dust filter layer, a fine dust filter layer,...
6951580 Method for minimizing bowing of collector plates in an electrostatic precipitator, and a collector plate-clip combination  
A bow-reduced precipitator collector plate assembly and an appertaining method include a precipitator collector plate that contacts a spring-like stiffening element configured to be attached to a...
6926757 Method for the concentration of spent acid  
The invention relates to a method for the concentration of the spent acid produced in connection with the scrubbing smelter or roaster gas. The hot gas produced is scrubbed first by dry and then by...
6861036 Charging and capture of particles in coronas irradiated by in-situ X-rays  
An improved method for charging ultrafine particles in coronas (e.g., unipolar or bipolar corona discharges) by exposing the particles to X-ray irradiation. Experimental tests have verified that...
6841136 Lighting equipment having an anion generator  
A lighting equipment for purifying air, includes an anion generator generating anions to purify air; a housing including an electric power source supplying an electric power, an amplifier...
6730141 Device and method for selectively removing gaseous pollutants from the ambient air  
A method is for selectively removing gaseous pollutants from the ambient air, and a device is for implementing the method. Undesirable emissions may be selectively and completely removed from the...
6726743 Electrostatic deaeration method and apparatus  
This disclosure relates to a method for deaerating a liquid layer such as a coating solution using electrostatic forces. A flow of charged particles is created above and moved towards a low...
6706086 Dust filter bag including a highly porous backing material ply  
A dust filter bag having a highly porous backing material ply and a method for producing the dust filter bag. The dust filter bag includes at least one filter material ply and at least one backing...
6663690 Removal of elemental mercury by photoionization  
Elemental mercury is removed from emissions of coal-fired utilities by the selective photoionization of mercury atoms using ultraviolet light, followed by electrostatic precipitation of the mercury...
6602311 Method and apparatus for spinning a web of mixed fibers, and products produced therefrom  
A fiber spinning device and process for manufacturing a web of fibers including a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be...
6592642 Brake dust collection assembly  
A vehicle brake assembly includes a brake rubbing interface operative to slow a vehicle when activated. The interface produces airborne brake dust particles when activated. A dust collector plate...
6506348 Heavy oil fired boiler exhaust gas treatment apparatus  
There is provided a heavy oil fired boiler exhaust gas treatment apparatus which removes soot and dust and SO 3 in the heavy oil fired boiler exhaust gas efficiently at a low cost without using an...
6488731 Pleated filter made of a multi-layer filter medium  
The present invention relates to a pleated filter made of a multi-layer filter medium, including at least one filter paper layer having area weights of 30-100 g/m 2 , a microfiber nonwoven fabric...
6398847 Method of removing contaminants from an aerosol using a new electret article  
An electret is described that includes a surface modified polymeric article having surface fluorination produced by fluorinating the polymeric article.
6379427 Method for protecting exposed surfaces  
A method for protecting an exposed surface in an enclosed space, such as a building, medical room, manufacturing space or consultation room, from harmful airborne agents. Airborne agents are...
6364935 Method and device for cleaning of a gaseous fluid  
The present invention relates to a method for cleaning of a gaseous fluid from particles being present in the fluid, the gaseous fluid being ionized, i.e. the particles are subjected to a charging,...
6322615 High efficiency permanent air filter and method of manufacture  
A novel air filter design for use in residential and commercial heating and air conditioning systems comprising a laminated unit having a filter media where the upstream side of the filter media...
6315805 Single or multi-ply filter medium for air filtration and a filter element made therefrom  
A dual- or multi-layer filter medium for air filtration, having at least one meltblown layer (2, 2a and 5) at least one meltblown layer (2 and 2a) is placed on the inlet side of the filter medium....
6238466 Electret articles and filters with increased oily mist resistance  
Novel electret articles containing a polymer and a performance-enhancing additive can be identified by their thermally stimulated conductivity characteristics or their filtration properties....
6203710 Liquid decontamination method and apparatus  
A liquid decontamination system has a liquid treatment chamber having a liquid input and output and a gas input and output. A plurality of electrodes are positioned to place a voltage across the...
6183536 Enhanced performance vacuum cleaner bag and method of operation  
A vacuum filter bag is constructed of layers which include a high air permeability multipurpose layer positioned upstream in the direction of air flow of a second filtration layer. The second...
6171369 Vacuum cleaner bag construction and method of operation  
A disposable vacuum cleaner filter bag is constructed of layers which include a filtration grade meltblown fleece layer having a basis weight of about 10-50 g/m 2 and air permeability of about...
6126722 Electrostatic reduction system for reducing airborne dust and microorganisms  
A dust reduction system for reducing airborne contaminants such as, for example, dust, smoke, microorganisms, etc., includes at least one ion generator made up of at least one ionizer bar and a...
6080225 Process and device for separating liquid drops from a gas stream  
6056809 High efficiency permanent air filter and method of manufacture  
6004375 Process and apparatus to treat gasborne particles  
An apparatus (10) to carry out a process for the in situ generation of agglomerate structures and the controlled influencing of the resulting agglomerates contains a closed flow duct (12) through...
6003434 Process and device for influencing liquid drops in a gas stream  
A method for affecting liquid droplets in a gas stream includes the steps of flowing a gas stream containing liquid droplets through a housing and positioning at least one surface in the housing,...
5951742 Processes for the scrubbing of exhaust gas streams  
A process for the scrubbing of undesirable substances from an exhaust gas stream which comprises passing the stream through a hollow cathode.
5950424 Diesel engine exhaust particle collection device  
A collection device for collecting, under electrical control, particles (10) in an exhaust from a diesel engine is disclosed. The device has a needle electrode (8) having a needle tip (8a) for...
5944875 Triboelectric separator with mixing chamber and pre-separator  
A triboelectrostatic separation apparatus includes a mixing chamber having opposed first and second charging ports, a separator having a separation chamber, first and second electrodes, and a...
5935538 Apparatus and method for photocatalytic conditioning of flue gas fly-ash particles  
A process is provided for conditioning fly-ash present in flue gas which also contains sulfur dioxide and steam by subjecting the fly-ash containing flue gas to ultraviolet radiation so as to...
5824137 Process and apparatus to treat gas-borne particles  
An apparatus (10) to carry out a process, in particular for the electrically induced agglomeration of gas-borne particles, contains a closed flow duct (12) through which is directed an aerosol...
5529608 Spacer assembly for use in electrostatic precipitator  
The present invention relates to an improved spacer assembly for use in an electrostatic precipitator. The electrostatic precipitator collects solid particles carried by a flue gas from a source of...
5482540 Electrostatic precipitator frame stabilizer and method of operation  
A grid-frame stabilizer and method of operation for an electrostatic precipitator includes a rigid stand-off member that prevents oscillation of a grid frame used to keep discharge electrodes of...
5431714 Process for investigating particles situated in a gas  
In the process for investigating particles situated in a gas, a gas stream is guided past a miniaturized UV excimer radiator. In this case, the particles are ionized and subsequently filtered out,...
5419953 Multilayer composite air filtration media  
A composite filter media is formed of a plurality of layers. A central layer of electrostatically charged material formed of a carded mixture of polyolefin fibers such as polypropylene and...
5411576 Oily mist resistant electret filter media and method for filtering  
An oily mist resistant electret filter media is provided. The filter media includes polypropylene electret fibers and a melt processable fluorochemical additive. The additive has a melt temperature...
5332562 Method for removing particulate matter and gases from a polluted gas stream  
The steps of the method of the invention are preferably practice on apparatus consisting of components arranged in a closed system for removing particulate matter and gases from a polluted gas...
5302190 Electrostatic air cleaner with negative polarity power and method of using same  
An electronic air cleaner includes a housing having a fluid inlet and a fluid outlet for creating a fluid stream through the housing. Inside the housing is provided a set of first parallel...
Matches 1 - 50 out of 90 1 2 >