Patents for B03C 3 - Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect (12,140)
12/1991
12/02/1991CA2043706A1 Use of anionic polymer nitrate compositions to lower the electrical resistivity of fly ash
11/1991
11/28/1991DE4114935A1 Vehicle exhaust filter for diesel engine - has electrostatic precipitator and mechanical collection of carbon
11/26/1991US5068811 Electrical control system for electrostatic precipitator
11/21/1991EP0457225A1 Control of addition of conditioning agents to flue gas
11/21/1991EP0457224A1 Removal of particulate matter from combustion gas streams
11/19/1991US5066316 Exhaust gas purifying apparatus
11/19/1991US5066313 Wire electrode replacement for electrostatic precipitators
11/19/1991US5065680 Method and apparatus for making solid waste material environmentally safe using heat
11/15/1991CA2042507A1 Removal of particulate matter from combustion gas streams
11/15/1991CA2042506A1 Control of addition of conditioning agents to flue gas
11/14/1991DE4014518A1 Multi-layer dust filer - has anti-bactericide and -fungicide action for allergy sufferer, using active metal filter
11/13/1991CN1014757B Arrangement for transporting air
11/13/1991CN1014682B Method and apparatus for detecting back corona in electrostatic filter with ordinary or intermittent dc-voltage supply
11/12/1991US5063906 Air filter for cooking apparatus
11/06/1991CN2087997U Electromagnetic hammer rapping means of electrostatic dust-remover
10/1991
10/31/1991WO1991016528A1 Process and device for removing particles from exhaust gases
10/30/1991CN1014497B Dust-collecting electrostatic precipitatar
10/30/1991CN1014496B So3 flue gas conditioning system
10/29/1991US5061296 Air purification system
10/29/1991US5060805 Photoelectron emitting member
10/29/1991US5060717 Air conditioner
10/29/1991CA1291520C Electronic air filtration system
10/23/1991EP0452387A1 Filter for separating particles from gases.
10/22/1991US5059224 Room air cleaner for use in automobiles
10/22/1991US5059219 Electroprecipitator with alternating charging and short collector sections
10/22/1991US5059218 Construction for supporting a flexible sheet
10/17/1991WO1991015297A1 Process for controlling the current supply device of an electrofilter
10/16/1991CN1055306A Blast furnace gas fully-dried type electric dust cleaning device and dust cleaning method
10/10/1991DE4108811A1 Regulating current supply to electro-filter - measuring parameters on primary side for regulation of filter voltage
10/09/1991EP0450517A2 Combustion system for suppressing emission of gases believed to cause green-house-effect
10/09/1991EP0450357A1 Control system for flue gas conditioning
10/08/1991US5055118 Dust-collecting electrode unit
10/08/1991US5055117 Air filtering apparatus
10/08/1991US5055115 Air cleaner including an electrostatic precipitator
10/02/1991DE4018488C1 Removing dust and hazardous materials from waste gases - by sepg. dust in dry multi-cyclone stage, and wet electrostatic precipitator stage
10/01/1991US5053914 Safety circuit for a high-voltage generator of an electrostatic filter
10/01/1991CA2038989A1 Wet wall electrostatic precipitator with liquid recycle
09/1991
09/29/1991CA2013266A1 Apparatus for reducing air pollution
09/25/1991EP0447436A1 Device for electrostatic separation of solid particles and aerosols from gases
09/25/1991EP0447418A1 An improvement in corona discharge arrangements for the removal of harmful substances generated by the corona discharge
09/24/1991US5051159 Melting a polymer, spinning fibers and putting in a binder and charging
09/24/1991US5051119 Rapping mechanism for precipitator electrodes
09/20/1991WO1991014503A1 Filter
09/20/1991CA2038451A1 Control system for flue gas conditioning
09/19/1991WO1991013685A1 Flue gas conditioning system
09/19/1991DE4008561A1 Operating voltage supply for electrofilter - using intermediate circuit converter and following oscillating circuit with inductance for HV transformer
09/18/1991EP0447166A2 Process for producing an electret, a film electret, and an electret filter
09/18/1991CN2084843U Anti-dew insulator
09/13/1991CA2037942A1 Process for producing an electret, a film electret, and an electret filter
09/12/1991DE4100957A1 Automatic equipment for removal of dust layers - has pulsating air jet and electrostatic collector
09/11/1991EP0445787A1 Photoelectron emitting member and uses thereof
09/11/1991EP0445766A1 Process and device for separation of admixtures from air
09/11/1991CN2084388U Powder heating stirrer
09/11/1991CN1013834B Gas conditioning installation with electrostatic precipitator
09/05/1991WO1991008368A3 A construction for supporting a flexible sheet
09/03/1991US5045095 Dust collector for an air cleaner
08/1991
08/28/1991EP0443254A1 Electrostatic particle filtration
08/27/1991US5043840 Apparatus and method for selective environmental conditioning of substantially enclosed areas
08/21/1991CN2083073U Driving electrostatic dust remover
08/20/1991US5041145 Bridged stream corona generator
08/20/1991CA1287707C Method and apparatus for removing dust from collector electrodes
08/13/1991US5039318 Device at wet electrostatic precipitator
08/13/1991US5039313 Method of and apparatus for the cleaning of the exhaust air of a paint-spray or lacquer-spray booth
08/06/1991US5037456 Electrostatic precipitator
08/06/1991US5037455 Air filter
08/01/1991DE4002456A1 Horizontal flow electrostatic dust filter with rhomboid collector - where electrodes discharge detached dust between gapped lower faces
07/1991
07/30/1991US5035728 Air cleaner assembly
07/24/1991EP0438213A2 Airfoil lance apparatus
07/24/1991EP0437849A1 Emission electrode in an electrostatic dust separator
07/23/1991US5034032 Air cleaner and air filter
07/16/1991US5032154 Flue gas conditioning system
07/11/1991WO1991009679A1 Electrostatic separation method and apparatus
07/09/1991US5030261 Two stage transition input section for dust collectors
07/09/1991US5030254 Lead-plate electric precipitator
07/09/1991US5029535 Control of addition of conditioning agents to flue gas
07/03/1991EP0435850A1 Collector electrode structure and electrostatic precipitator including same
07/02/1991CA1285606C Self-discharge type pulse charging electrostatic precipitator
06/1991
06/26/1991EP0433661A2 Polymeric microfiber filter medium
06/26/1991CN2079531U Ionization type purifier for cleaning room air
06/19/1991EP0433152A1 Electrofilter with cleaning system
06/18/1991US5024681 Flowing flue gases through electrostatic precipitator, retaining charges, then high speed filtration
06/16/1991WO1991008838A1 Compact hybrid particulate collector (cohpac)
06/13/1991WO1991008368A2 A construction for supporting a flexible sheet
06/13/1991WO1991008052A1 Electrical control system for electrostatic precipitator
06/12/1991WO1991008837A1 Method for reducing the risk of back-corona in an electrostatic precipitator
06/12/1991EP0431509A2 Method and arrangement for removing soot and condensible components from diesel exhaust gases
06/12/1991EP0406348A4 Coolant distribution pipes in a wet electrostatic separator.
06/12/1991EP0306489B1 An arrangement for generating an electric corona discharge in air
06/12/1991CN2078657U High-tension electrostatic rotary-umbrella-type dust-remover
06/12/1991CA2070661A1 Method for reducing the risk of back-corona in an electrostatic precipitator
06/04/1991US5021831 Filter for removing smoke and toner dust used in electrophotographic/electrostatic recording apparatus
05/1991
05/31/1991WO1991008053A1 Electrical control system for electrostatic precipitator
05/30/1991WO1991007230A1 Electrocyclone for gas cleaning
05/29/1991CN2077752U Electrostatic flue dust collector
05/28/1991US5019237 Metal-ion vapor accelerator cell
05/22/1991EP0428400A1 Filtration media and method of manufacture
05/22/1991CN2077329U High-voltage static dust collector with electrically isolated gate
05/16/1991WO1991006371A1 Multiple rapper control for electrostatic precipitator
05/16/1991DE4033679A1 Electric air cleaning filter - regulates ionisation current in dependence on flow velocity through filter
05/15/1991CN2076879U Electric dust remover cross electric halo wire