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Patent Searching and Data


Matches 801 - 850 out of 7,734

Document Document Title
WO/2001/034281
The invention relates to a device for separating and converting soot particles into gaseous substances from a stream of exhaust gas, in particular of a diesel internal combustion engine. According to the invention, the exhaust gas is pas...  
WO/2001/030504
The invention refers to an ion particle classifier and a method for classifying coarse solid particles from an air suspension of micronized particles, said ion particle classifier comprising a housing surrounding an electrically conducti...  
WO/2001/028692
An electrofiltration apparatus is provided having at least one electrostatically charged polymeric film layer having surface structures. The film layers may be configured as a collection cell that has the structured film layer defining a...  
WO/2001/028656
There is disclosed an electrostatically charged filter material comprising a blend of polyester fibres and electrostatically chargeable fibres of at least one other kind.  
WO/2001/026778
A method for imparting an electrostatic charge to a nonwoven fibrous web (20). The fibrous web (20) is wetted with a wetting liquid (24), followed by being saturated with an aqueous polar liquid (30) and drying (31). The resulting dried ...  
WO/2001/027371
A method and apparatus for charging fibers that contain a nonconductive polymer. A polar liquid (32, 34) is sprayed onto free-fibers (24), and the free-fibers (24) are then collected to form an entangled nonwoven fibrous web (25) that ma...  
WO/2001/027381
A method of charging fibrous webs with nonaqueous polar liquids. A web (20) that contains nonconductive fibers is wetted with a nonaqueous polar liquid (14). The web (20) is then substantially dried (22) to provide a fibrous electret web...  
WO/2001/027965
An electrostatic fluid accelerator having a multiplicity of closely spaced corona electrodes (1). The close spacing of such corona electrodes (1) is obtainable because such corona electrodes (1) are isolated from one another with excitin...  
WO/2001/022421
The present invention is an improved molded filter which performs multiple filtration functions within an enclosed environment, such as within a computer hard disk drive. In a first embodiment, the filter is capable of removing particula...  
WO/2001/019525
The invention concerns a device comprising at least an electrostatic filter (20) with corona effect comprising an emitting structure (29, 32, 33) and a collector structure (24). The invention is characterised in that the collector struct...  
WO/2001/019419
An air cleaner which is free from a conventional disadvantage that, when an ionizing unit is removed from a body housing for cleaning, an ionizing wire is broken at an erroneous touch of it, wherein a pre-filter (7) is installed removabl...  
WO/2001/020076
The present invention relates to high dielectric non-woven fabrics and their synthetic process. Particularly, the present invention relates to a process for preparing high dielectric non-woven fabrics comprising the steps of (a) mix-spin...  
WO/2001/015800
Methods and devices are provided for producing dense arrays of chemical entities. A substrate comprises a plurality of microlocations having microelectrodes connected to a network for connection to a computer to control the voltage and p...  
WO/2001/015811
An air cleaner comprises a grounding electrode (51) of sheet metal on the charger side and a grounding electrode (49) on the dust-collecting side, which consists of a conductive resin mold formed separately from the grounding electrode (...  
WO/2001/014784
The invention relates to an insulating enclosure (1) comprised of basic units (2) that can be assembled with one another. Said basic units consist of an outer covering (4), of an insulating material (3) having two or more layers, and of ...  
WO/2001/010537
There is provided a filter device with a housing having an air delivery fan (1), preferably a fan having an axial air inlet (6) and a radial air outlet (7). An axially rotating fan and filter unit is located between the air inlet and air...  
WO/2001/008804
A ground conductor for grounding systems of electrostatic separators, comprising an electroconductive core with a plastic or rubber sheath. In order to prevent the liquids from flowing therethrough, the inventive ground conductor consist...  
WO/2001/007670
The invention concerns a method for the preparation of fine-grain ore (2) in which the ore (2) is subjected to wind screening using a gas. Two fractions are formed (6, 8): a crude fraction (6) and a primary fine fraction (8), whereby the...  
WO/2001/005010
A method and apparatus for detecting electromagnetic noise generated by an arc and controlling a power supply that powers the arcs. In an embodiment of the invention, the apparatus includes an arc detection circuit (100) and a power supp...  
WO/2001/002081
Combined system for the removal of contaminants from gas effluents, of the type comprising at least an electronic bombardment operation and at least an electrostatic interaction operation, wherein an operation for heat diffusion and mole...  
WO/2001/000301
This invention relates to a filtering device (10) and method for extracting pollutants from a zone. This invention further relates to a corona discharge reactor (16) and filtration unit for treating a polluted air stream. This invention ...  
WO/2000/078463
The method and apparatus of the present invention are directed to conditioning particulate-containing gas streams (36) using novel additives (10). The additive (10) is an organometallic salt, preferably of a carboxylic acid, that decompo...  
WO/2000/078430
An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha v...  
WO/2000/074188
The invention concerns an ion generating device in gaseous medium, comprising one or several needles (40), having a body (40-1) and an emitting end (40-2), a composite material sleeve (42) comprising an unsaturated polyester, reinforced ...  
WO/2000/062936
The invention relates to an arrangement and method for purification of flowing gas. The invention comprises at least one flow duct (1, 5, 6, 7), with a first potential, which has an internal dimension and through which the gas is arrange...  
WO/2000/061293
A particle precipitation device for removing particles entrained in a gas stream comprises an array of passages (10) through which the gas stream can pass relatively freely, the passages being provided between plastics walls, means for u...  
WO/2000/056461
The invention relates to an electrodeposition device, having two or more emission electrodes that can be connected to a common electrical supply line and an electrically insulating electrode holder, wherein the electrode holder is made o...  
WO/2000/053325
The invention relates to a method and device for separating materials in the form of particles and/or drops from a gas flow, in which method the gas flow is directed through a collection chamber the outer walls of which are grounded, and...  
WO/2000/051742
The invention relates to an electric filter which comprises emission and separation systems, which are intended for separating particles from a gaseous, particle-containing medium passing through the electric filter, and a filter chamber...  
WO/2000/047326
Gas scrubbing apparatus and method, employing highly charged liquid droplets (22) for removal of both particulates and pollutant gases from the gas to be cleaned, having spreading liquid sheet electrodes (20) emitting the droplets (22) f...  
WO/2000/033945
A method and a device are described for employing low temperature plasma and electrostatic filter technology to remove particles and other pollutants from effluent from incinerators, especially from furnaces and combustion chambers which...  
WO/2000/030732
The present invention relates to an air cleaner comprising a fan unit (1; 1') and a filter unit (3). It is significant for the air cleaner according to the present invention that the fan unit (1;1') and the filter unit (3) are mutually c...  
WO/2000/030755
An electrostatic precipitator (10, 82, 98) has a high voltage electrode assembly (14, 100, 120, 214) including multiple wire segments (36, 77, 113A, 126, 228) that are positioned within a surrounding electrically conductive media (26, 11...  
WO/2000/025909
An electro-kinetic electro-static air conditioner (100) includes a self-contained ion generator that provides electro-kinetically moved air with ions and safe amounts of ozone. The ion generator includes a high voltage pulse generator wh...  
WO/2000/019609
The invention relates to a pulse generator for generating a voltage pulse for an inductive or capacitive load (C3), notably for an electrostatic dust separator (F). The pulse generator comprises a storage capacitor (C1), which is connect...  
WO/2000/016906
A method of operating an electrostatic precipitator (7), comprises feeding the precipitator with electric power generated by a power supply (10) according to a regime adapted to impart between the precipitator electrodes a voltage having...  
WO/2000/013801
An electric dust collector and a gas treating method using the electric dust collector, the electric dust collector having a gas distributor (2) at a gas introduction unit for gas containing moisture and water-soluble powder, the gas dis...  
WO/2000/010236
The invention relates to a dust suppressor comprising corona electrodes (7) to which a high voltage is supplied. The voltage supply means comprise an intermediate voltage unit (2) and a voltage multiplier (6). The intermediate voltage un...  
WO/2000/007732
The invention relates to an air purification filter that in a common unit includes a prefiltering filter wall (1) and a set of elongated, flimsy elements (7) of electrostatically chargeable material, said elements (7), when passed by air...  
WO/2000/006954
A filtration system that rotates in conjunction with a blower wheel (40), and a method of attaching the same. The blower wheel (40) typically has a plurality of fan blades (46) arranged in a spaced relationship radially around a blower c...  
WO/2000/006304
A dust reduction system (40) for reducing airborne contaminants such as, for example, dust, smoke, microorganisms, etc., includes at least one ion generator (50) made up of at least one ionizer bar (11) and a ground plane (4) which is pa...  
WO/2000/006672
In a method of producing a clean gas from hydrocarbons, hot air and steam are mixed in a reaction zone with carbonaceous residue, whereby carbon reacts with oxygen to form CO┬┐2? and CO under heat release. Hydrocarbon is added to release...  
WO/2000/004996
The invention relates to a precipitating tube bundle for wet electrofilters. Said precipitating tube bundle consists of several single-piece precipitating tubes which are held, at a distance from each other, by an upper support collar, a...  
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...  

Matches 801 - 850 out of 7,734