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Patent Searching and Data


Matches 801 - 850 out of 7,711

Document Document Title
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/2000/010713
The invention relates to a device for cleaning gases, notably air, which in an air-tight housing (1) has several electrostatic filter units (11) arranged parallel to each other. The filter units are each fitted with an air-tight covering...  
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...  
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);...  

Matches 801 - 850 out of 7,711