| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 095079000 | Plural separate stages or zones (e.g., separate ionization and collection regions, etc.) | 20 |
| 20090049985 | AIR PURIFICATION SYSTEM, METHOD FOR PURIFYING AIR INSIDE A STRUCTURE - The invention relates to an air purification system for a structure comprising a first radiation source ( | 02-26-2009 |
| 20090235817 | ADSORPTIVE GAS SAMPLER USING IONIC NANO-DROPLETS - An air scrubber, system, and method of use are provided. The air scrubber includes an electrospray nozzle for creating an ionic fluid electrospray plume; an air sample intake positioned to provide an air sample interacting with the ionic fluid electrospray plume; and a counter electrode positioned to collect the electrospray plume. The selected chemicals in the air sample are captured by ionic fluid electrospray plume and accumulate on the counter electrode. | 09-24-2009 |
| 20090241777 | FILTER STRUCTURE FOR FILTERING A PARTICLE-CONTAINING GAS, METHOD OF ITS MANUFACTURE AND USE OF POROUS PAPER - The invention relates to a novel gas filter structure, a filtering method and a method of producing the filter structure. The structure according to the invention comprises a planar, porous isolation material layer ( | 10-01-2009 |
| 20090282974 | Systems and Methods for Inducing Swirl in Particles - Embodiments of systems and methods for inducing swirl in particles are provided. In one embodiment, a system for inducing swirl in particles may include a supply including a plurality of electrically charged particles, and at least one swirling chamber for creating at least one electrical field therein, which may include an entry path in communication with the supply and an exit path. According to this example embodiment, the plurality of electrically charged particles may flow through the swirling chamber or chambers, causing at least one of the plurality of electrically charged particles to rotate about a radial axis of the swirling chamber as a result of the electrical field. | 11-19-2009 |
| 20100116133 | OXYGEN SEPARATION ASSEMBLY AND METHOD - The present invention provides an electrically driven oxygen separation assembly and method of applying an electrical potential thereto in which one or more tubular membrane elements are provided having an anode layer, a cathode layer, an electrolyte layer and two current collector layers adjacent to and in contact with the anode layer and the cathode layer and situated on the inside and outside of the at least one tubular membrane element. The potential is applied to one of the two current collector layers at two central spaced locations of the at least one tubular membrane element and to the other of the two current collector layers at least at opposite end locations thereof. As a result the electric current flow through the tubular membrane element is divided into two parts flowing between the two central spaced locations and the opposite end locations. | 05-13-2010 |
| 20100126343 | Electrically Enhanced Air Filter Apparatus With A Perpendicular Field Ionizer - An electrically enhanced air filter apparatus for filtering particles from moving air is described. The apparatus includes a filter arranged so particles approach the filter a filter speed and pass through an ionizer at an ionizer speed, and is configured so the filter speed is less than the ionizer speed. The ionizer is arranged to guide the moving air in an ionizer airflow direction and generates an ionizing electric field having ionizer field direction substantially perpendicular to the ionizer airflow direction. | 05-27-2010 |
| 20100251889 | CHARGING DEVICE, AIR HANDLING DEVICE, METHOD FOR CHARGING, AND METHOD FOR HANDLING AIR - The present invention relates to a charging device having a charge section ( | 10-07-2010 |
| 20100263530 | AIR CONDITIONING SYSTEM WITH MODULAR ELECTRICALLY STIMULATED AIR FILTER APPARATUS - An air conditioning system includes an air flow pathway extending through a housing from an inlet to an outlet. Air conditioning apparatus is disposed in the airflow pathway between the inlet and the outlet conditioning an air stream passing through the air flow pathway from the inlet to the outlet. A modular electrically stimulated air filter apparatus is carried by opposed, parallel frameworks mounted in series in the air flow pathway between the inlet and the air conditioning apparatus filtering entrapping contaminants in the air stream flowing through the housing from the inlet to the outlet. The opposed parallel frameworks are mounted to opposed supports affixed to the housing. | 10-21-2010 |
| 20100269692 | Clean corona gas ionization for static charge neutralization - Clean corona gas ionization by separating contaminant byproducts from corona generated ions includes establishing a non-ionized gas stream having a pressure and flowing in a downstream direction, establishing a plasma region of ions and contaminant byproducts in which the pressure is sufficiently lower than the pressure of the non-ionized gas stream to prevent at least a substantial portion of the byproducts from migrating into the non-ionized gas stream, and applying an electric field to the plasma region sufficient to induce at least a substantial portion of the ions to migrate into the non-ionized gas stream. | 10-28-2010 |
| 20100294129 | METHOD AND DEVICE FOR PRECIPITATING IMPURITIES FROM A STREAM OF GAS - Liquid and/or particle-shaped impurities are precipitated from a stream of gas, for example, from a stream of gas that originates from a crankcase of an internal combustion engine and is directed to the engine's intake side. The stream of gas is passed through a gas discharge section between two electrodes. The stream of gas is passed between an emission electrode which is formed by electrode tips and an opposing electrode at a distance therefrom. A direct voltage which exceeds the breakdown voltage is applied to the electrodes using a direct current high voltage source, and the current which occurs over the gas discharge section between the electrodes is limited. A stable low energy direct current plasma is formed in the space between the two electrodes. The impurities are electrically charged and attracted to the opposing electrode by means of electrical field forces. | 11-25-2010 |
| 20110056372 | ELECTROSTATIC SCREEN DEVICE AND METHOD FOR EMISSION CONTROL - An electrostatic screen battery for emission control (ESBEC) system includes a plurality of screens. The screens are arranged in an alternating manner so that screens at a first electric potential are interposed with screens at a second electric potential. An ionizer is disposed upstream of the screens. An exhaust stream passes by the ionizer and then through the screens, where particulates are deposited onto the screens. In preferred embodiments the screens have hydrophobic surfaces. | 03-10-2011 |
| 20110315011 | SMALL AREA ELECTROSTATIC AEROSOL COLLECTOR - A small area electrostatic aerosol collector includes a collector housing, an inlet nozzle that extends from the housing and an exit port that provides an exit for air to flow back out of the housing. A pumping arrangement pulls air into the housing through the inlet nozzle. The sampled air is moved through ductwork such that particulates are collected on a substrate and the air is evacuated through the exit port after collection. The collector includes a charging device positioned within the ductwork to create an electric field defining a charging point that the air passes through between the inlet nozzle and the substrate. The substrate is held at a neutral or opposite charge relative to the electric field created by the charging device. Particulates are collected on the sample substrate by containing the aerosol in a small area and by forcing the aerosol to flow near the substrate. | 12-29-2011 |
| 20120180659 | METHOD AND DEVICE FOR GAS CLEANING - A method for separating particles from particle-laden gas. Charged particles are formed by charging particles of a particle-laden gas. A gas jet is provided by guiding the particle-laden gas by a flow guide. Particles from the gas jet are collected to a collecting electrode by an electric field. An effective collecting area of the collecting electrode is positioned such that gas velocity gradient at each point of the effective collecting area is smaller than 10% of the maximum gas velocity in the gas jet divided by the height dimension of the jet. | 07-19-2012 |
| 20120186447 | EXHAUST GAS TREATMENT DEVICE HAVING TWO HONEYCOMB BODIES FOR GENERATING AN ELECTRIC POTENTIAL, METHOD FOR TREATING EXHAUST GAS AND MOTOR VEHICLE HAVING THE DEVICE - An exhaust gas treatment device includes at least a first at least partially electrically conductive honeycomb body having a first front side and a first rear side, a second at least partially electrically conductive honeycomb body having a second front side and a second rear side, an intermediate space between the first honeycomb body and the second honeycomb body, a power supply for the formation of an electric potential between the first honeycomb body and the second honeycomb body, and a multiplicity of electrodes fastened to the first honeycomb body, extending beyond the first rear side over a first length into the intermediate space and positioned at a first distance from the second front side of the second honeycomb body. A method for treating motor vehicle exhaust gas containing particles and a motor vehicle are also provided. | 07-26-2012 |
| 20120255439 | Flying Air Purifier - A flying air purifier includes a flying unit configured to fly within a space at a first elevation. The flying unit is also configured to fly within the space at a second elevation. The flying air purifier also includes an air purifier mounted to the flying unit and configured to remove particles from air within the space at the first elevation and at the second elevation. The air purifier includes an air inlet having a first charge and an air outlet having a second charge, wherein the second charge is opposite of the first charge. | 10-11-2012 |
| 20130145932 | METHOD AND APPARATUS FOR REDUCING SOOT PARTICLES IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE - An apparatus for reducing soot particles in exhaust gas, particularly of an internal combustion engine, includes first and second at least partially electrically conductive structures with an intermediate space therebetween, a high voltage source forming a potential between the first and second structures and at least one at least partially electrically conductive intermediate structure in the intermediate space receiving an intermediate potential. A method for treating the exhaust gas includes conducting exhaust gas from the first to the second structure and applying a high voltage at least temporarily between the first and second structures. At least part of the soot particles in the exhaust gas is ionized or agglomerated and deposited on the second structure. A high voltage between potentials of the first and second structures is applied at least temporarily to the intermediate structure. An electric field is influenced favorably and disruptions from undesirable voltage flashovers are reduced. | 06-13-2013 |
| 20130192462 | ELECTROSTATIC AEROSOL CONCENTRATOR - Disclosed is an electrostatic aerosol concentrator for the concentration of aerosol particles and their collection for subsequent analysis. The concentrator comprises an airflow chamber that includes alternately energized and grounded electrode elements that work in concert to impart radial inward motion to charged aerosol particles and focusing them toward an enriched aerosol outlet. If desired, filtered air inlets may be used to provide a sheath of aerosol-free air along the chamber periphery and prevent deposition of particles onto electrode surfaces. Aerosol particles entering the airflow chamber may carry a positive or negative charge naturally, or a charge may be induced on the particles using a charging section located upstream of the aerosol inlet. Natural or induced charges on the aerosol particles may be used to selectively concentrate subpopulations of aerosol particles from a mixture of particles. For example, bacterial spores or aerosolized viruses may be selectively enriched without concentrating other aerosol particles. The particles of interest are focused and collected at an aerosol rich outlet in a small air volume, while the majority of the airflow, stripped of particles of interest, is purged to the atmosphere through an aerosol lean outlet. | 08-01-2013 |
| 20140041519 | ELECTROSTATIC SCREEN DEVICE AND METHOD FOR EMISSION CONTROL - An electrostatic screen battery for emission control (ESBEC) system includes a plurality of screens arranged in an alternating manner, so that screens at a first electric potential are interposed with screens at a second electric potential, with an ionizer disposed upstream of the screens, wherein a particulate-containing exhaust stream passing by the ionizer and then through the screens deposits particulates onto the screens. In preferred embodiments the screens have hydrophobic surfaces. | 02-13-2014 |
| 20150040760 | DIRECT IMPACT AEROSOL SAMPLING BY ELECTROSTATIC PRECIPITATION - The present disclosure provides apparatuses for collecting aerosol samples by ionizing an air sample at different degrees. An air flow is generated through a cavity in which at least one corona wire is disposed and electrically charged to form a corona therearound. At least one grounded sample collection plate is provided downstream of the at least one corona wire so that aerosol ions generated within the corona are deposited on the at least one grounded sample collection plate. A plurality of aerosol samples ionized to different degrees can be generated. The at least one corona wire may be perpendicular to the direction of the flow, or may be parallel to the direction of the flow. The apparatus can include a serial connection of a plurality of stages such that each stage is capable of generating at least one aerosol sample, and the air flow passes through the plurality of stages serially. | 02-12-2015 |
| 095080000 | Pulsing or time-varying electric field (e.g., AC, pulsed DC, etc.) | 1 |
| 20150135949 | WET ELECTROSTATIC PRECIPITATOR AND FLUE GAS TREATMENT METHOD - A wet electrostatic precipitator includes an electric field forming unit including a first electrode and a second electrode which form an alternating electric field. The first electrode is a flat plate, and has a plurality of discharge electrodes on a surface that opposes the second electrode. The second electrode includes a discharge frame, a first flat plate portion and a second flat plate portion. The first flat plate portion opposes the discharge electrode of the first electrode. A plurality of discharge electrodes are formed on a surface of the second flat plate portion that opposes the first electrode. The discharge electrodes alternately generate corona discharges having opposite polarities in a direction perpendicular to a flow direction of gas, and alternately apply charges having opposite polarities to mist and dust. The first electrode and the first flat plate portion trap the charged mist and the dust. | 05-21-2015 |
