| Document |
Document Title |
|
WO/2000/004216 |
There is disclosed an electrostatically charged filter material comprising a blend of polypropylene fibres and: i) halogen free acrylic fibres or ii) PVC fibres or iii) a mixture of halogen free acrylic fibres and PVC fibres.
|
|
WO/2000/003808 |
In a two-stage, electrostatic precipitator for extracting airborne particles, charged plates (2) are electrically connected to each other and physically separated from each other by ferrite spacers (14) so that an impedance of the spacer...
|
|
WO/2000/001737 |
An electret that includes a surface modified polymeric article having surface fluorination produced by fluorinating the polymeric article. The electret may be a nonwoven fibrous web that comprises electrically charged microfibers where t...
|
|
WO/2000/001429 |
A method of denaturing or deactivating an airborne allergen comprising directing at the airborne source of the allergen liquid droplets from a spray device containing a liquid composition which includes an allergen denaturant or allergen...
|
|
WO/2000/000291 |
An electrostatic wet precipitator for removing particulate contaminants from a gaseous stream passing through a collector tube (3) having a discharge electrode assembly (16) coaxially disposed therein and a moving liquid film on the inne...
|
|
WO/1999/065608 |
Method and device for generating voltage peaks in an electrostatic precipitator (7) via generation of current pulses, where each voltage peak is generated by a group of current pulses. A device (200) according to the invention comprises ...
|
|
WO/1999/065609 |
A membrane (8) is used as a collection substrate in an electrostatic precipitator. Possible material choices include fibers in the form of woven mats, screens made from stainless steel wires or fiber reinforced polymer composite membrane...
|
|
WO/1999/061159 |
An electrostatic filter includes a disposable sheet of conductive media to which an earthed or high voltage power supply is attached. The disposable filter is positioned adjacent a charged plate inside an insulated frame, so that an elec...
|
|
WO/1999/061160 |
A method and an apparatus for separating solid or drop-like particles from an air flow, in which method the air flow is arranged to flow through a separator chamber (24). The air flow is arranged to flow between on one hand an electrode,...
|
|
WO/1999/059724 |
The invention relates to a method for cleaning the emission electrode of an electrofilter, whereby a cleaning body moves along along the emission electrode and strips it. The electrofilter is used in an internal combustion engine. Accord...
|
|
WO/1999/048611 |
An electrostatic air cleaner comprises a corona charging section and a precipitation section. The charging section comprises a first and a second array of substantially parallel earth wires, each array being disposed in a respective plan...
|
|
WO/1999/047268 |
The present invention relates to a gas cleaning process and apparatus for removing solid and liquid aerosols entrained in a gas stream. The gas to be treated is passed through a wetted, electrostatically charged filter media. In accordan...
|
|
WO/1999/037126 |
An air ionizer (10) has at least two electrodes (26) contained within a recessed region (18) of an insulating housing (12). When high voltages are applied to the electrodes (26), nearby air molecules are ionized and generally move toward...
|
|
WO/1999/028967 |
A box (21) for transferring a semiconductor wafer, having an opening/closing mechanism for putting in/taking out a wafer, characterized by comprising a gas cleaning device A¿-2? which uses photoelectrons produced by irradiation with lig...
|
|
WO/1999/025478 |
An air filter body (FB) includes a plurality of discs (10, 20) of electrically insulating material arranged in a stack and having ribbed contacting faces (11, 12, 21, 22) defining small filtering passageways between the contacting faces ...
|
|
WO/1999/019072 |
A dust-collecting element (24) detachably attached to an air-cleaning apparatus body (12) and provided with an ionizing unit (22) for electrically charging dust in the air and a filter (23d) serving as a dust-collecting unit, wherein a c...
|
|
WO/1999/017883 |
Methods and apparatus implementing a technique for electrostatically transporting a particle (130) through a medium. In general, one implementation includes a substrate (130); a first insulation layer (120) formed on the substrate (130);...
|
|
WO/1999/016532 |
Novel electret articles containing a polymer and a performance-enhancing additive can be identified by their thermally stimulated conductivity characteristics or their filtration properties. Electret articles such as nonwoven filter webs...
|
|
WO/1999/015731 |
The present invention relates to a method and assembly for controlling the behaviour of particulate matter such as mist and dust occurring in the manufacture of paper and board. In the method, a web (1) is passed to web treatment equipme...
|
|
WO/1999/014435 |
There is described a method for controlling the amount of ionised gases and/or particles suspended in the air above roads, streets, open spaces or the like. This is done by establishing an electrical field between the top layer of a road...
|
|
WO/1999/013961 |
A particle separator (10) having a housing (21), a radially centered core (66), helical augers (21) which force a fluid stream in a helical flow direction, and separator devices (24, 30, 32, 34, 36) for the progressive separation of part...
|
|
WO/1999/012649 |
In a method for use in an electrostatic precipitator unit, comprising discharge electrodes and collecting electrodes between which a varying high voltage is maintained, to control a pulsating direct current supplied to the electrodes, th...
|
|
WO/1999/010273 |
A deodorizing/sterilizing device having a cylindrical electrode formed of a sintered metal which mainly contains titanium oxide and can be easily machined by rolling and cutting and a needle-like electrode located generally on the center...
|
|
WO/1999/010103 |
A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements (24). Betwe...
|
|
WO/1999/007475 |
An apparatus (10) for charging an electrostatic precipitator (12), powered by a power supply (18) and having a plurality of corona electrodes (14) and a plurality of collector electrodes (16), such that a precipitator capacitance (Cp) ma...
|
|
WO/1999/007474 |
Device for cleaning air from charged particles (aerosols) in an air flow duct including one or several precipitator panels (11; 11') comprising one or more precipitator units that are arranged in such a way that their inlet area, perviou...
|
|
WO/1999/003590 |
Filter apparatus (100) for trapping particles suspended in a gaseous fluid stream generally includes a first and a second electrode (116, 118) with a porous filter (112) therebetween along with electrical contacts (144, 146) for applying...
|
|
WO/1999/002241 |
The invention relates to a flue gas conditioning device (1) comprising an inlet (2), a diffuser (3) in extension of the inlet, and an essentially cylindrical pipe area (4) in extension of the diffuser, said pipe area being equipped with ...
|
|
WO/1999/001224 |
Filter plates (2) in an electro-filter can with advantage be cleaned of fly ash by a method according to the invention comprising cleaning water via nozzles (5) which, during the spraying, are displaced (11) longitudinally with the side ...
|
|
WO/1998/058744 |
An electric precipitator in which a plurality of discharge poles are divided into groups and arranged at each of gas flow passages divided by a plurality of electric precipitation electrodes (11-15). The discharge electrodes in each grou...
|
|
WO/1998/058743 |
The invention comprises an electrostatic precipitator capable of separating sub-micron size particulate matter from a gaseous stream. In a preferred embodiment, alternating high voltage plates and ground collector plates are placed in a ...
|
|
WO/1998/057750 |
An electrostatic dust filter comprises plane, rectangular metal frames (1) where said metal frames are provided with discharge electrodes (16) stretched therein and collecting plates (18) mounted in the spaces between and on the outer si...
|
|
WO/1998/056489 |
The invention relates to an ionisation filter for purifying air that is enriched with dust particles and other anorganic and organic pollutants. The filter has at least one electrically charged emission electrode for producing electrical...
|
|
WO/1998/053915 |
The present invention relates to a filter for separating particles from air, more precisely down to submicron particles, said filter comprising on one hand a set (10; 10'; 10''; 10''') of elongated, flexible or floppy elements of electro...
|
|
WO/1998/053914 |
A filter for separating particles from air comprises a set of elongated, flexible elements (6) of electrostatically chargeable material, said filter being intended to operate in a duct (3) through which flowing air is passing in order to...
|
|
WO/1998/050162 |
The present invention relates to a method for cleaning of a gaseous fluid from particles being present in said fluid, said gaseous fluid being ionised, i.e. the particles are subjected to a charging, and that said ionised gaseous fluid i...
|
|
WO/1998/046359 |
The invention relates to a method for cleaning waste process gases containing water vapour and dust, in a wet-type electrostatic filter. According to this method, the gases which pass through said wet-type electrostatic filter are charge...
|
|
WO/1998/046358 |
The present invention relates to a device in connection with a filter, especially an active electret filter for air cleaning, said filter comprising an ionisation portion (10; 10'), said portion (10; 10') having a high voltage source at ...
|
|
WO/1998/046360 |
The invention relates to an electrostatic filter, especially a wet-type electrostatic filter, for separating liquids and/or solids from gases, with collecting electrodes which are tubular in shape and are interconnected electroconductive...
|
|
WO/1998/043525 |
The invention concerns an electrical general dust collection system which, in order to agglomerate and capture the particles with high efficiency, uses for the initial agglomeration of particles in the admission duct into the cyclone and...
|
|
WO/1998/042444 |
In an electrostatic precipitator unit, comprising discharge electrodes and collecting electrodes between which a varying high voltage is maintained, a pulsating direct current supplied thereto is controlled. The frequency, the pulse heig...
|
|
WO/1998/039100 |
The present invention relates to a device (1; 1''; 1'''; 1''''; 1''''') for air cleaning, especially from electrically charged particles, said device (1; 1'; 1''; 1'''; 1''''; 1''''') including an air flow channel (2; 2'; 2''; 2'''; 2'''...
|
|
WO/1998/039082 |
A process is disclosed for eliminating pollutants from combustion gas from waste incineration plants and power plants. The combustion gas is treated with an aqueous Ca(OH)�2? suspension in a spray absorber, then supplied to a solid sep...
|
|
WO/1998/037973 |
An electrostatic precipitator comprising an exhaust pipe (4) formed by covering the inner surface of a steel pipe (14) with a refractory (15), a support member (5) fitted into the exhaust pipe (4) while being electrically insulated from ...
|
|
WO/1998/033596 |
An ionizer (12) for electrification of particles in the air, a collector (13) for trapping charged particles, an ozone decomposition filter (14) for decomposition of ozone generated on the ionizer (12), and a fan (15) for feeding the air...
|
|
WO/1998/025690 |
The invention concerns a method of reducing the concentration of PCDD and PCDF (polychlorinated dibenzodioxins and polychlorinated dibenzofurans) in the flow of waste gases from a sintering plant, in particular an iron-ore sintering plan...
|
|
WO/1998/024552 |
Disclosed is an improved filter formed from a non-dielectric material which has been coated with a dielectric material and electret treated by, for example, DC corona discharge treatment. Also disclosed is a method for the formation of t...
|
|
WO/1998/022223 |
To homogenize the electric field in the filter channel, that is defined by two precipitation electrodes (1), of a filter structure for the separation of dustlike or drop-shaped impurities from a flow of gas, corona electrodes (3) are use...
|
|
WO/1998/022222 |
The invention relates to a device in connection with an electrostatic filter for air purifying, said filter including an ionizing portion (1) and a precipitating portion (2). The precipitating portion (2) consists of a unit (10) that is ...
|
|
WO/1998/020979 |
An air filter assembly includes an ion source (38) positioned adjacent to the front face of an air filter to inject ions into the arriving air flow. The ions penetrate upstream sufficiently far to have ionized the air and charge particle...
|
