| Patents for B03C 3 - Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect (12,140) |
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| 05/15/1991 | CN2076878U Electric dust remover cleaning low-stickiness bug dust |
| 05/14/1991 | US5015267 Process for rapping of electrostatic precipitator surfaces |
| 05/10/1991 | CA2002785A1 Dust filter |
| 05/08/1991 | DE3936421A1 Successive sections of ceramic exhaust pipe collecting soot - for burning off soot, operates electrically, electrostatically or magnetically to catalytically purify fumes |
| 05/08/1991 | CN2076452U High-voltage electrostatic precipitator |
| 05/07/1991 | CA1283875C Method and device for purifying off-gases |
| 05/02/1991 | WO1991005611A1 Filtration of foreign particles from air |
| 05/02/1991 | EP0425433A1 Filter material for the filtration of soot particles |
| 05/02/1991 | DE4032974A1 Specimen material concentrating appts. - has hollow cylindrical collecting electrode, spray electrode and suction system raising sensitivity of analyser |
| 05/01/1991 | WO1991006372A1 Multiple rapper control for electrostatic precipitator |
| 04/30/1991 | US5012159 Arrangement for transporting air |
| 04/30/1991 | US5011516 Catalytic oxidation of SO2 to SO3 in the presence of fly ash |
| 04/30/1991 | US5010777 Apparatus and method for establishing selected environmental characteristics |
| 04/30/1991 | CA1283612C Rigid discharge electrode |
| 04/27/1991 | CA2028283A1 Filter material for filtering out soot particles |
| 04/24/1991 | EP0424335A2 Method and apparatus for the purification of air, flue gases or the like |
| 04/23/1991 | US5009683 Purifying air conditioner |
| 04/23/1991 | US5009677 Process for separating particulates in an electrostatic precipitator |
| 04/10/1991 | CN2074678U High votage static cleaner capable of eliminating frog on cement mill |
| 04/10/1991 | CN1012320B Variable intensity rapping |
| 04/09/1991 | US5006134 Coagulator for systems for the purifying of exhaust gases of fossil fuels |
| 04/04/1991 | WO1991004443A1 Method and apparatus for making solid waste material environmentally safe using heat |
| 04/02/1991 | US5005101 Electrical discharge generator |
| 04/02/1991 | US5003774 Apparatus for soot removal from exhaust gas |
| 03/28/1991 | DE3930872A1 Room air purifying electrostatic filter - has separator flow ducts as electrically conductive houses, spaced by insulators |
| 03/21/1991 | WO1991003631A1 Diesel exhaust gas filter |
| 03/20/1991 | EP0417771A1 High-voltage pulse generating circuit and electrostatic precipitator containing it |
| 03/20/1991 | EP0417181A1 An emission electrode. |
| 03/19/1991 | US5000762 Method for separating dioxins from gases |
| 03/13/1991 | EP0416629A2 A room air cleaner for use in automobiles |
| 03/13/1991 | CN1049803A Procedure and apparatus for purification of air, flue gases or equivalent |
| 03/06/1991 | EP0415486A1 Process and apparatus for electrostatic cleaning of noxious and dusty exhaust gases in multiple field separators |
| 03/06/1991 | CN2072440U Medium frequency electrostatic dust-collecting power source |
| 02/28/1991 | DE3927743A1 Electrostatic filter insulator cleaning - by compressed air jets controlled by voltage drop |
| 02/28/1991 | DE3927569A1 Conductive plastic forms electrofilter collector tubes - has ioniser wires surrounded by impure flowing gas |
| 02/26/1991 | US4996471 Controller for an electrostatic precipitator |
| 01/31/1991 | DE3923720A1 Electrostatic filtration by agglomerating charged contaminant particle - with opposite polarity carriers for later removal from entraining fluid stream |
| 01/29/1991 | US4987857 Vacuum deposition apparatus with dust collector electrode |
| 01/29/1991 | US4987839 Removal of particulate matter from combustion gas streams |
| 01/23/1991 | EP0408772A1 Exhaust gas cleaning method |
| 01/17/1991 | DE4004357C1 Gas electrostatic cleaning system - has linkage driven hammer operating against striker at bottom edge of screen |
| 01/09/1991 | EP0406570A2 Conditioning of gas streams containing particulate for electrostatic precipitation |
| 01/09/1991 | EP0406348A1 Coolant distribution pipes in a wet electrostatic separator. |
| 01/02/1991 | CN2068424U Protector of barrel high voltage electrostatic precipitator |
| 12/27/1990 | EP0404093A2 Photoelectron emitting member |
| 12/26/1990 | CN2068012U Negative pressure automatic cinder device |
| 12/25/1990 | US4980796 Gas ionization system and method |
| 12/25/1990 | US4980099 Airfoil lance apparatus for homogeneous humidification and sorbent dispersion in a gas stream |
| 12/25/1990 | US4979968 Apparatus for removing particles from exhaust gas |
| 12/25/1990 | US4979364 Method of separating soot particles from diesel fuel exhaust gases |
| 12/20/1990 | DE3923640A1 Filtering out soot particles from IC engine exhaust gas flow - using existing and specified polarity conditioned retention power and/or related reaction with positive and negative charged filters |
| 12/19/1990 | EP0403230A1 Fluids cleaner |
| 12/19/1990 | CN2067605U Uhv electric coke catcher |
| 12/19/1990 | CN1010836B Rapping mechanism for rapping electrodes of electrostatic precipitator |
| 12/19/1990 | CN1010835B Electrostatic dust remover for boiling furnace |
| 12/18/1990 | US4978372 Pleated charged media air filter |
| 12/18/1990 | US4978371 Compact hollow fiber filter in a housing having gas flowing through only in one direction |
| 12/18/1990 | CA1277927C Air filter |
| 12/12/1990 | EP0401489A2 Electrostratic attracting sheet |
| 12/12/1990 | CN2067187U Electric dust collector with characterization of pre-charge wide polar distance auxiliary dust-collecting |
| 12/11/1990 | US4976752 Arrangement for generating an electric corona discharge in air |
| 12/11/1990 | US4976749 Air filter and particle removal system |
| 12/05/1990 | CA2018084A1 Conditioning of gas streams containing particulate |
| 12/04/1990 | CA1277250C Gas conditioning for an electrostatic precipitator |
| 11/28/1990 | CN1047227A Rapping mechanism for electrostatic precipitators |
| 11/28/1990 | CN1010558B Control method for electrostatic precipitator |
| 11/27/1990 | US4973341 Cyclonic separator for removing and recovering airborne particles |
| 11/22/1990 | EP0398476A2 Rapping mechanism for electrostatic precipitator electrodes |
| 11/22/1990 | EP0398236A1 Emission electrode |
| 11/22/1990 | EP0397867A1 Pulsed voltage source for gas-cleaning electrofilters |
| 11/15/1990 | DE3928808C1 Treating chemical pollutants - by passage of waste gas through multiple passages between collector plates |
| 11/15/1990 | DE3915248A1 Room air cleaner and humidifier with electrostatic filter - has HV wires and metallic or metallised plastic plates between air inlet and liq. surface |
| 11/14/1990 | EP0397208A2 Electrostatic precipitator for gas cleaning |
| 11/14/1990 | CN1010385B Exhaust gas-purifying equipment |
| 11/14/1990 | CN1010384B Dust-collecting electrostatic precipitator |
| 11/14/1990 | CN1010383B Optimazing method for flue-gas tempering |
| 11/13/1990 | US4969328 Diesel engine exhaust oxidizer |
| 11/08/1990 | DE3914673A1 Cleaning waste gas from wood drier by electro:filter - with cooled electrodes condensing water-vapour to form aerosol scouring film |
| 11/07/1990 | CN1046694A Local purification of charged dust ion from electric welding |
| 11/06/1990 | US4968330 Apparatus for separating particulates in an electrostatic precipitator |
| 11/01/1990 | WO1990012649A1 Arrangement for cleaning ventilation air polluted with paint particles |
| 10/31/1990 | EP0395331A1 Electret filter material |
| 10/30/1990 | US4966610 Sulfur trioxide, ammonia, water vapor; electrostatic precipitation |
| 10/26/1990 | CA2015548A1 Electret filter material |
| 10/24/1990 | EP0393208A2 Electrical connector |
| 10/24/1990 | EP0330678B1 Insecticidal pyrazolines |
| 10/24/1990 | CN1046294A Dust-collecting polar-plate-type electric tar catcher |
| 10/02/1990 | US4960445 Process for removing SO2 and fly ash from flue gas |
| 10/02/1990 | US4960380 Method and apparatus for the reduction of solid waste material using coherent radiation |
| 10/02/1990 | CA1274790A1 Discharge electrode |
| 10/02/1990 | CA1274789A1 Arrangement for supporting a plurality of discharge electrodes, and a discharge electrode suited to the arrangement |
| 10/02/1990 | CA1274788A1 Process for removing solids from a gas containing the same |
| 09/29/1990 | WO1990011132A1 Method for controlling the current pulse supply to an electrostatic precipitator |
| 09/26/1990 | EP0368858A4 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same |
| 09/26/1990 | CN1009784B Arrangement for generating electric corona discharge in air |
| 09/26/1990 | CN1009710B Improvement of electrostatic collection |
| 09/19/1990 | EP0387434A1 Dust collecting element for electrostatic dust collector, and electrostatic dust collecting method using said element |
| 09/19/1990 | CN2062258U High voltage static cleaner |
| 09/18/1990 | US4957512 Method of cleaning gas from solid and gaseous matter and apparatus materializing same |
| 09/12/1990 | EP0386242A1 Pulsed-voltage source for gas-cleaning electrofilters |