| Patents for B03C 3 - Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect (12,140) |
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| 09/11/1990 | US4956162 Pollution control for coal furnaces for generation of electricity |
| 09/11/1990 | US4956152 Emission control unit |
| 09/11/1990 | US4955991 Arrangement for generating an electric corona discharge in air |
| 09/07/1990 | WO1990009838A1 Cyclonic separator for removing and recovering airborne particles |
| 09/05/1990 | CN2061483U High-voltage electrostatic dust-clean and recovery device |
| 09/04/1990 | CA1273584A1 Process and device for the removal of solid or liquid particles in suspension from a gas stream by means of an electric field |
| 08/30/1990 | DE3905825A1 Centrifugal soot separation |
| 08/29/1990 | EP0383918A1 Pulsed voltage source for gas-cleaning electrofilters |
| 08/23/1990 | WO1990009227A1 Exhaust gas cleaning method |
| 08/23/1990 | DE3905454A1 Process and plant for heat-treating fine-grained material |
| 08/23/1990 | DE3905453A1 Process and plant for heat-treating fine-grained material |
| 08/16/1990 | DE4003565A1 Vorrichtung zur entfernung partikelfoermiger stoffe aus auspuff- und rauchgasen Device for distance partikelfoermiger materials from an exhaust and flue gases |
| 08/16/1990 | DE4003564A1 Removing particulates from exhausts and flue gases |
| 08/14/1990 | US4948399 Corona electrode for dust-collecting electrostatic precipitator |
| 08/14/1990 | CA1272758A1 Impulse high voltage generator |
| 08/07/1990 | CA1272453A1 Electronic air filter |
| 08/01/1990 | EP0380037A2 Apparatus and method for establishing selected environmental characteristics |
| 08/01/1990 | EP0379760A1 Device for continuously reducing concentration of carbon monoxide and other harmful types of emission |
| 08/01/1990 | CN2059856U Wide-polar distance high-wind speed plate type electric duster |
| 07/31/1990 | US4944778 Electrostatic dust collector |
| 07/26/1990 | WO1990007982A1 Arrangement for cleaning ventilation air polluted with paint particles |
| 07/26/1990 | DE3901663A1 Apparatus for filtering, in particular for filtering out dust from a gas stream |
| 07/18/1990 | EP0377794A1 Electrofilter made from plastics and/or metal, in particular lead |
| 07/18/1990 | EP0377683A1 Circuit arrangement for the high-voltage supply of an electrostatic filter |
| 07/18/1990 | CN1008795B Electrostatic lens type electric dust-collecting method and its apparatus |
| 07/12/1990 | DE3900139A1 Device for filtering an air stream which is fed into a passenger compartment of a vehicle |
| 07/11/1990 | EP0377004A1 Coagulator for equipment for cleaning exhaust gases from fossil fuels |
| 07/11/1990 | CN1008694B High-voltage silicon controlled rectifier with spark frequency automatic control system |
| 07/11/1990 | CA2007256A1 Lead-plate electrofilter |
| 07/10/1990 | US4940471 Device for cleaning two-stage electrostatic precipitators |
| 07/10/1990 | US4940470 Single field ionizing electrically stimulated filter |
| 07/10/1990 | CA1271516A1 Method of automatically controlling an electrostatic precipitator |
| 07/04/1990 | WO1990007382A1 Filter for separating particles from gases |
| 07/04/1990 | EP0376915A2 Electrostatic soot converter |
| 07/04/1990 | CN1043590A Improvement in corona discharge arrangement for removal of harmful substances generated by corona discharge |
| 07/04/1990 | CA2045146A1 Filter for separating particles from gases |
| 07/03/1990 | US4938786 Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus |
| 06/27/1990 | EP0375234A1 Nonwoven filter material |
| 06/27/1990 | EP0374347A1 Double filter insert for an electrostatic air cleaning device |
| 06/26/1990 | US4936876 Method and apparatus for detecting back corona in an electrostatic filter with ordinary or intermittent DC-voltage supply |
| 06/21/1990 | DE3842001A1 High-voltage (high-tension) electrode for an exhaust gas purification device |
| 06/19/1990 | US4935113 Spraying effluent over an electric field, draining and density separation of coloring particles |
| 06/14/1990 | WO1990006181A1 Device for electrostatic separation of solid particles and aerosols from gases |
| 06/14/1990 | WO1990006180A1 An improvement in corona discharge arrangements for the removal of harmful substances generated by the corona discharge |
| 06/13/1990 | DE3841766A1 Electrostatic filter (precipitator) |
| 06/12/1990 | US4932985 Rapper construction |
| 06/08/1990 | CA2004828A1 Corona discharge arrangements for the removal of harmful substances generated by the corona discharge |
| 06/07/1990 | DE3915748C1 Waste gas purificn. appts. from solid particles - comprises candle mounting plate below hood, protection plate inside in hood with central ventilation passage, etc. |
| 06/07/1990 | CA2004748A1 Apparatus for precipitating solid particles and aerosols from gases |
| 06/06/1990 | EP0371945A1 A method for separating dioxins from gases |
| 06/05/1990 | US4931265 Oxidizing sulfur to sulfur trioxide |
| 05/31/1990 | CA2001130A1 Method for separating dioxins from gases |
| 05/30/1990 | EP0370044A1 An arrangement for transporting air. |
| 05/29/1990 | US4928456 Process for rapping of electrostatic precipitator surfaces |
| 05/23/1990 | EP0369016A1 Source of alternating voltage for gas-cleaning electrofilters |
| 05/23/1990 | EP0368858A1 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same. |
| 05/23/1990 | EP0265451B1 Electrostatic separation device |
| 05/23/1990 | DE3910123C1 Method for optimising the energy consumption when operating an electrostatic precipitator |
| 05/23/1990 | DE3844140C1 Electrostatic exhaust-gas purification device for combustion gases |
| 05/23/1990 | CN2057371U Power unit of high voltage electrostatic duster |
| 05/22/1990 | US4927437 Cyclonic separator for removing and recovering airborne particles |
| 05/17/1990 | WO1990005027A1 Device at wet electrostatic precipitator |
| 05/15/1990 | US4925487 Dust collection in sintering of metallurgical products |
| 05/09/1990 | EP0367587A2 Diesel engine exhaust oxidizer |
| 05/09/1990 | CN2056870U Steel wire brush cleaner of horizontal dry-type electric duster |
| 05/01/1990 | US4922099 Electric field device |
| 05/01/1990 | CA2001226A1 Diesel engine exhaust oxidizer |
| 05/01/1990 | CA1268429A1 Two-stage electrostatic precipitator |
| 04/24/1990 | US4919693 Electrostatic air cleaner |
| 04/17/1990 | US4917942 Nonwoven filter material |
| 04/11/1990 | EP0363329A2 Conveyor unit for hoods with manual and automatic ionic filter |
| 04/10/1990 | CA1267677A1 Air transporting arrangement |
| 03/27/1990 | US4911737 Generating an electrostatic field |
| 03/20/1990 | US4909812 Device for power supply of gas-cleaning electrical precipitators |
| 03/13/1990 | US4908047 Soot removal from exhaust gas |
| 03/08/1990 | WO1990001993A1 Pulsed voltage source for gas-cleaning electrofilters |
| 03/08/1990 | WO1990001992A1 Pulsed voltage source for gas-cleaning electrofilters |
| 03/08/1990 | WO1990001991A1 Pulsed-voltage source for gas-cleaning electrofilters |
| 03/06/1990 | US4905470 Electrostatic filter for removing particles from diesel exhaust |
| 02/27/1990 | US4904283 Enhanced fabric filtration through controlled electrostatically augmented dust deposition |
| 02/21/1990 | CN2053112U H-shaped tri-electrode duster |
| 02/21/1990 | CN1006898B Method for cleaning gas produced from solid carbonaceous material in a twostage gas producer |
| 02/20/1990 | US4902316 Oven including a ventless exhaust system |
| 02/20/1990 | US4902306 Dual-dipole electrostatic air filter |
| 02/14/1990 | EP0354613A1 Process for cleaning exhaust gases from a sintering installation |
| 02/07/1990 | CN2052303U Electrical dust remover with a device preventing insulators from dewing |
| 02/06/1990 | US4898105 For removing entrained fine solid particles from a gas stream |
| 01/31/1990 | EP0352451A2 Electrofilter |
| 01/25/1990 | DE3827062A1 Process for cleaning the exhaust air of a paint spray booth and a paint spray booth for carrying out this process |
| 01/17/1990 | CN1038777A Energy-saving type narrow-pulse high-voltage power source |
| 01/11/1990 | DE3838272C1 Injecting (coupling in) laser radiation |
| 01/10/1990 | CN2050783U Air ion clarifier |
| 01/04/1990 | DE3902812C1 Electrostatic precipitator for the removal of particulates from the exhaust of internal-combustion devices or internal combustion engines and the catalytically initiated combustion of said particulates by means of an electric heating device |
| 01/03/1990 | CN2050346U Complex filtration type decontamination plant with fabric filtration layer and pipe form electric field |
| 01/03/1990 | CN1038414A Air treatment system |
| 01/03/1990 | CN1006283B Auto-discharge type pulse charging electrostatic cleaner |
| 01/02/1990 | US4890455 Coagulator for an exhaust gas scrubbing system for internal combustion engines |
| 12/28/1989 | WO1989012731A1 Coagulator for equipment for cleaning exhaust gases from fossil fuels |
| 12/28/1989 | DE3900553C1 Electric separator made of plastic and/or metal, for example lead |
| 12/27/1989 | EP0348085A1 Vacuum deposition apparatus |