Abstract: An economical air purification system and process that greatly reduces concentrations of dust and noxious gases to provide for a cleaner and healthier enviroment for people, plants, poultry and other animals. Desirably, the special air purification system and process has a set of modules arranged for emitting overlapping flow patterns of ions. The modules can include parallel arrays of ionizers which are preferably arranged in a matrix or grid pattern. For even better results, the ionizers can comprise self-cleaning ionizers. One or more fans can be spaced from the modules to circulate the ions and air as well as draw influent air through the intake ports and exhaust purified air through the outlet ports. Heaters can also be provided to heat the circulating air.

Abstract: An apparatus for removing particles from a gas in a high purity flowing gas system is provided which includes a flow tube inserted inline in the flowing gas system having an inlet and an outlet, a pressure sealed, electrically insulated feed-through integral to the flow tube, an emitter inserted through the feed-through into the flow tube to create a plasma in the gas to charge particles in the gas, and a collector surface in proximity to the emitter; whereby an electric field between the emitter and the collector surface draws the particles in the gas to the collector surface.

Abstract: The invention relates to an ionization filter for purifying air that is enriched with dust particles and other inorganic and organic pollutants. The filter has at least one electrically charged emission electrode for producing electrically conductive particles, and at least one passive electrode for collecting the pollutant particles that are in movement in the electric field between the emission electrode and the passive electrode. In accordance with the invention, an extra layer having denaturing properties is placed in the flow path of the pollutant particles that are to be precipitated. This layer is preferably composed of strongly acidic and strongly alkaline layers, or vice versa, with a neutral intermediate layer between layers of different pH values in each case. Micro-organisms, such as bacteria, fungi, spores and/or allergens which move in the electric field of the ionization filter are simultaneously destroyed by this denaturing property.

Abstract: The invention relates to a device for producing active oxygen ions in the air for improved air quality, comprising at least one air ionizer and an electric transformer producing sufficient electrical high voltage for air ionization. The air ionizer is coupled to a sensor which detects the oxidizable gas content in the air (air pollution sensor). On the basis of the detected content of such oxidizable gases, the electrical energy which is guided to the air ionizer is transformed by an electrical control device in such a way that only low-level ionization occurs at low concentration of oxidizable gases. Said ionization is sensor-controlled and can automatically be increased to a maximum value when the concentration of oxidizable gases rises.

Abstract: In a disclosed electric dust-collecting unit, needle electrodes face laterally against openings, so that a person in charge of replacement or maintenance/inspection of the electric dust-collecting unit can be prevented in safety from being injured on his fingers or body by needles. Therefore, this type of the electric dust-collecting unit can be applied in an air cleaner not only in offices but also in homes. In addition, this type of the electric dust-collecting unit does not employ a conventional box-pillar type needle support, so that its air flow path is not suppressed with a resultant remarkable decrease in a pressure loss, thus contributing to compacting of the electric dust-collecting unit and hence the air cleaner.

Abstract: The present invention relates to a method for cleaning of a gaseous fluid from particles being present in the fluid, the gaseous fluid being ionized, i.e. the particles are subjected to a charging, and that the ionized gaseous fluid is brought to pass through a precipitator unit (2) including a filter medium. The invention also relates to a device for cleaning of a gaseous fluid. Filters for cleaning of air often require expensive filter medium and complicated arrangements as regards ionization of the air and charging of the filter medium. The present invention is characterized by an extremely simple method where the air is ionized and then the ionized air is brought to pass through a filter medium of polypropylene.

Abstract: A DC/AC air cleaner for a vehicle includes a chassis having a bottom plate and two side plates formed on two sides of the bottom plate, respectively. An insertion slot is defined in the bottom plate, and two inner plates are mounted between the side plates and configured to define a clamping slot, a positioning slot, and an engaging slot. A lower end of a face plate is held by the insertion slot. A lower end of an activated filtering mesh is held by the clamping slot. A lower end of a static discharger is held by the positioning slot, and the lower end of a fan is held by the engaging slot. An upper cover is provided to retain the upper end of the face plate, upper end of the activated filtering mesh, upper end of the static discharger, and upper end of the fan.

Abstract: A hand-holdable electro-kinetic electro-static ionic air refreshener-conditioner for a pet shelter or litter box 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 whose output pulses are coupled between first and second electrode arrays. Preferably the first array comprises one or more pin-like electrodes and the second array comprises one more washer-like electrodes. Preferably a ratio between effective area of an electrode in the second array compared to effective area of an electrode in the first array exceeds about 15:1 and preferably is about 20:1. An electric field produced by the high voltage pulses between the arrays produces an electrostatic flow of ionized air containing safe amounts of ozone. Optionally, a sensor detects odor adjacent the refreshener-conditioner causes the ion generator to be activated when sensed odor exceeds a predetermined threshold.

Abstract: A dehumidifier uses high voltage to cause moisture to condense out of an airflow in contact with a series of needles and a screen forming the cathode and anode respectively of a diode structure. Condensate is sucked into small holes in either or both of the needles and/or the screen by a vacuum. Ultra-violet light is applied to reduce the incidence of ozone.

Abstract: A condensing wet electrostatic precipitator for cleaning hot gases is constructed of collection electrode modules which establish longitudinally extending collection electrodes and a cooling jacket, each collection electrode module having a configuration including at least one part-tubular section and a cooling fluid chamber integral with the part-tubular section for containing cooling medium for cooling the part-tubular section. In some arrangements, the collection electrode modules are spaced apart laterally to enable the passage of the hot gases through the collection electrodes in a direction transverse to the longitudinal direction in which the collecting electrodes extend.

Abstract: Structures for V-bank electrostatic air filters are described. The V-bank air filters are assembled from two side panels, perforated top and bottom plates, a narrow end wall and an open wide end for the intake of air to be filtered. A pair of enclosure plates are pivotally mounted to the side panels in a parallel relationship to the respective top and bottom plates to form a pair of rectangular enclosures for respectively supporting electrostatic filter pads. The enclosure plates pivot open for removal and replacement of the filter pads. The side panels, top and bottom plates and rear wall are made from sheet metal blanks using cutting, bending and stamping processes. The enclosure plates are made from sheet metal blanks or welded wire structures. The advantage is that the structures are manufactured using simple automated processes and are quickly assembled without sub-assembly, thus time and labour are saved and costs are reduced.

Abstract: Apparatus for the purification of air, flue gases in which apparatus the air, flue gases or equivalent are directed into a duct, in which apparatus the air, flue gases are ionized, and in which apparatus charged impurity particles (7) present in the air, flue gases or equivalent are attracted by one or more collector surfaces (2) by virtue of a difference in the states of charge, causing the particles to settle on the surface. The air, flue gases are ionized by virtue of one or more ionizing electrodes (5) directed at a collector surface. The distance between the ionizing electrode or equivalent and the collector surface and the difference between the state of electric charge of the collector surface and the charged impurity particles are so adjusted that the impurity particles will move essentially directly towards the collector surface and settle on it.

Abstract: A fan assembly includes a tubular housing and electrodes which ionize air and cause the air to be filtered and to move through the tubular housing without use of moving parts, such as an impeller, thereby providing air filtration and ventilation without generation of vibrations and acoustic disturbances. An electric potential is applied between a longitudinally-oriented needle electrode and a planar or curved transversely-oriented net electrode disposed within the housing downstream of the needle electrode, thereby forming a longitudinally asymmetric electric field that ionizes and accelerates air molecules toward the net electrode, carrying the air molecules past the net electrode and through the air outlet. The assembly further includes a tubular duct electrode disposed within the housing on the outlet side ofthe net electrode, which collects ionized particles precipitated from the air.

Abstract: A method and an apparatus for separating solid or drop-like particles from an air flow is provided. The air flows through a separator chamber between an electrode, ion generating means or like particle charging device disposed in the separator chamber, and a grounded collector surface, so that the particles are charged by the charging device and accumulate on the collector surface. The air flows along a substantially spiral path around the charging device in at least a part of the separator chamber so that due to the action of centrifugal force at least a portion of the particles pass toward the grounded collector surface at the periphery of the chamber. A small flow of purified air flows downwardly in a central part of the separator chamber so that it washes the charging device in the separator chamber.

Abstract: An electrical apparatus includes a reaction chamber. A stream of contaminated gasses flows through the chamber. An elongated coronating electrode is positioned in the reaction chamber for producing a corona discharge within the chamber. A multi-stage Fitch generator connected to the electrode produces a high level, rapidly pulsating voltage in the electrode. Controlled amounts of an inert gas or inert gas-air mixture are combined with the contaminated gases to provide a high concentration of inert gas in the reaction chamber. In the inert gas-enriched atmosphere, the pulsating corona discharge produces a high concentration of metastable intermediates that greatly increase the rate of chemical conversion of the contaminants. Switching circuitry allows the pulsating voltage output of the Fitch generator to be superimposed on a constant direct current voltage in the electrode, setting up an electrostatic field in the reaction chamber for removing conversion byproducts from the gas stream.

Abstract: An electric dust collecting apparatus includes at least one needle electrode for charging floating particles in air by generating a corona discharge around needle points; at least one collecting electrode provided on cell-liked arrangement corresponding to the needle electrodes, for attracting and collecting the charged floating particles by an electrostatic force; and at least one deflection electrode having a rectangularly hollow longitudinal structure having a front plate portion and side plate portions wherein the needle electrodes are fixed on the front plate portion, for applying a deflection force to the charged floating particles to move toward the collecting electrodes by a potential applied from the side plate portions, and wherein the at least one deflection electrode having the rectangularly hollow longitudinal structure is obtained by bending a profile plate punched up a sheet metal by a predetermined punch press process, accordingly, the plurality of deflection electrodes can be integratedly for

Abstract: A fan device comprises a front fan cover, a blade device, a rear fan cover and a rotary front net. The front fan cover is installed with a first motor and a second motor therewithin. The blade means is installed behind the front fan cover and secured to the center of the shaft of the first motor for being driven to rotate by the first motor. The rear fan cover is installed behind the front fan cover and the blade device. The rear fan cover is combined with the front fan cover. The rotary front net has many lattices. The rotary front net is properly connected to the shaft center of the second motor and is driven to rotate by the second motor. The front fan cover is installed with a fragrant piece groove, a mosquito-repellent incense piece groove and an electric heat piece, and a fan leg frame is pivotally mounted to the rear fan cover. Thereby, the output wind can be diffuse uniformly and smoothly.

Abstract: An electric dust collector that is capable of enhancing collection efficiency. An exhaust pipe (4) consists of a steel pipe (14) whose exterior surface is lined with refractory material (15). A supporting member (5) is supported outside the exhaust pipe (4) and is inserted into the exhaust pipe (4). A discharge electrode (7) is fixed to the supporting member (5) so that it is electrically insulated from the exhaust pipe (4). A surface electrode (6) is fixed to the discharge electrode (7) and has a pyramid-shaped mesh (6c). The mesh (6) is arranged coaxially with the exhaust pipe (4) so that it spreads within the exhaust pipe (4) toward the exit of the exhaust pipe (4). The discharge electrode (7) penetrates the center line of the surface electrode (6) and protrudes downward from the vertex of the mesh (6c).

Abstract: Apparatus for purification of a discharge gas, wherein the discharge gas is selected from a group of noble gases, and most preferably is helium or argon. The purification of the discharge gas is achieved by attraction and removal of at least one ionized contaminant in the discharge gas, wherein the contaminant exhibits an ionization potential that is less than the excitation potential of the discharge gas. A discharge gas purification system may be constructed to include a discharge ionization detector that employs a discharge chamber and discharge source for effecting a discharge to provide photons and metastables for ionization of an analyte in an adjacent ionization chamber, wherein the discharge chamber includes a bleed flow for attracting and removing ionized contaminants present in the discharge chamber.

Abstract: An electrode panel-drawing device of a static ion discharger, including a box body. A top section of the box body is formed with an opening. A bottom section of the box body is disposed with a connecting seat. The box body is disposed with ventilators, an activating switch and an adjustment button. A motor, a fan and an AC-to-DC circuit board are disposed in the box body. A drawer body is fitted into the opening of the box body. The drawer body is disposed with discharge needles and electrode panels at equal intervals. The positive terminal of the circuit board is connected to the discharge needles, while the negative terminal of the circuit board is connected to the electrode panels. The positive discharge needles ionize the air to eliminate the static electricity. The drawer body can be drawn out of the box body for directly washing the discharge needles and the electrode panels.

Abstract: A dust reduction system for reducing airborne contaminants such as, for example, dust, smoke, microorganisms, etc., includes at least one ion generator made up of at least one ionizer bar and a ground plane which is parallel and proximate to at least one bar. The system can also include a dust collection device such as a tray containing an aqueous composition optionally containing a degreaser, and/or a metal sheet with a water rinse system, and/or the surfaces of a room-sized enclosed space. The system can be applied to any enclosed space where it is desired to obtain high efficiency reduction of airborne dust and microorganisms. The system is especially useful in poultry production and processing areas such as hatching cabinets, throwing rooms, and controlled environment poultry rearing rooms.

Abstract: An air filter assembly includes an ion source positioned adjacent to the front face of an air filter to inject ions into the arriving air flow. The ions penetrate upstream sufficiently far to have ionized the air and charge particles before their arrival at the filter trapping medium. The ion source is preferably sufficiently thin as to allow the filter with the ion source mounted thereon to be inserted into a filter slot in a duct of an air handling unit.

Abstract: An electric dust collector that does not need an exhaust fan or special equipment for preventing dust from flying off. An incinerator is formed on a building, and a smokestack is raised so that it is integrated with the wall of the incinerator. The smokestack is formed from metallic sheeting and lined with refractories. A beam is installed over the smokestack. The beam is electrically insulated using insulatores. A discharge electrode is suspended form the beam at the center of the smokestack. The discharge electrode has many needle-like discharge pins almost in its lower half part. The negative pole of a DC high-voltage power supply is connected with the discharge electrode, while the positive pole is grounded and connected with the metallic sheeting constituting the smokestack.

Abstract: An apparatus for ionizing air to remove particulate matter. The apparatus including an ionizer and a bracket for mounting the ionizer and a bracket for mounting the ionizer in a duct or enclosure. The ionizer includes a series of electrodes which span a portion of the duct. The electrodes are energized by a high voltage circuit and an ionic wind is created between the electrode and duct. The ionic wind sweeps particles in the air to the duct which provides a collector electrode. In another embodiment, a ring collector electrode is also provided for spanning the inner portion of the duct. The high voltage circuit includes a DC power supply, a high voltage transformer, a high voltage multiplier stage and a push-pull switching circuit. The DC power supply receives AC power and generates a DC output which is coupled to the primary of the transformer. The push-pull switching circuit produces a controlled and efficient AC output in the transformer by alternately switching the primary winding.

Abstract: A miniature air purifier produces a corona discharge surrounding a needle-like emitter point connected to a negative DC power supply. The power supply operates from a nine volt battery and contains a step-up voltage inverter having a single transformer outputting high voltage spikes with a voltage multiplier operating on the output of the inverter. The production of high voltage spikes of about 200 Hz rather than a sinusoidally varying voltage significantly reduces current consumption. The needle-like emitter point is located about 1/4-inch from an 80% open mesh metallic grid held at ground potential. Corona discharge at the emitter point ionizes the air and creates ozone, and nitric oxide both of which combine with direct electron impact decomposition to detoxify and destroy a wide variety of airborne pollutants including pathogens, chemicals and allergens.

Abstract: An apparatus (10) to carry out a process for the in situ generation of agglomerate structures and the controlled influencing of the resulting agglomerates contains a closed flow duct (12) through which is directed an aerosol containing particles (14). For the purpose of the bipolar charging of the aerosol, at least one electrode pair (20, 22) is arranged in the flow duct (12), the electrode (20) being wired, so as to be ungrounded, to the negative pole of a current source, the strength of which is sufficient to produce a corona discharge between the electrodes (20 and 22). The electrodes (20 and 22) of each electrode pair are designed to be needle-shaped and are arranged to be insulated with respect to the flow duct walls, such that their tips (26) are disposed opposite each other.

Abstract: An air cleaning apparatus, especially for cleaning of room air, includes an ionizing device (14) having a unipolar ion source formed by a corona discharge electrode, an electrostatic precipitator (12) connected to a high-voltage source (15) and having a flow-through passageway (18) for air to be cleaned and two groups of electrode elements (16, 17) disposed in the flow-through passageway, the electrode elements (16) of one group being interleaved with and spaced from the electrode elements (17) of the other group and arranged to be at a potential different from that of the said other group. The corona discharge electrode (21) is arranged such that the ions generated at the electrode can diffuse essentially freely away from the electrode and thereby diffuse substantially freely throughout the room in which the ionizing device (14) is positioned.

Abstract: An air-cleaning apparatus is mounted on a wall to collect particulates suspended in the air through electrical control. In the air-cleaning apparatus, a box is mounted on a wall to house therein a dust-collection unit and an air fan such as cross-flow fan for blowing air. The dust-collection unit collects the particulates suspended in the air by imparting a corona electric charge to these particulates, i.e., by rendering them an electrostatic charge. The box of the air-cleaning apparatus is provided with an air outlet in its lower section and also provided with a forward-protruding air duct in its upper section. The forward-protruding air duct is provided with an air inlet in its leading edge portion.

Abstract: A process for the scrubbing of undesirable substances from an exhaust gas stream which comprises passing the stream through a hollow cathode.

Abstract: Method and apparatus for purification of a discharge gas, wherein the discharge gas is selected from a group of noble gases, and most preferably is helium or argon. The purification of the discharge gas is achieved by attraction and removal of at least one ionized contaminant in the discharge gas, wherein the contaminant exhibits an ionization potential that is less than the excitation potential of the discharge gas. A discharge gas purification system may be constructed to include a discharge chamber, an inlet for supplying a pressurized flow of discharge gas into the discharge chamber, a discharge device for effecting a discharge in the discharge chamber to effect ionization of a contaminant in the discharge gas, and a bleed flow device located with respect to the discharge and to the discharge cathode for electrically attracting and removing a bleed flow of the discharge gas in the discharge chamber. A disproportionate amount of the ionized contaminants thus created are captured in the bleed flow.

Abstract: An ionization field is produced across the intake air flow to an internal combustion engine to increase the content of oxygen in the stream, and the stream reactivity. This ionization field may be produced between a sharp electrode and a grid or sheet, positioned in a shielded structure like the filter housing on the engine intake. Alternatively, an ultraviolet light source may be used to ionize the oxygen in the air stream. In either form the ionization field may be also used across the ventilation air stream fed to the passenger compartment as an air conditioning function, and the ionization power may be modulated along with the demand. Thus the throttle position may be sensed to modulate the voltage multiplier levels across the filter housing air stream, and the ionization power to the heater plenum chamber may be modified in accordance with the fan speed.

Abstract: An electric dust-collection unit including needle electrodes for the purpose of charging particulates within the air by causing corona discharges around their tips, collector cells (collector electrodes) arranged in tubular shape corresponding to the needle electrodes for the purpose of attracting and collecting the charged particulates by static electricity, and deflecting electrodes which are arranged in such a way as to be inserted within the collector cells for the purpose of imparting a deflecting force on the charged particles in the direction of the collector cells. The deflecting electrodes being configured in the form of a hollow column including a forward plate section having a mounting hole for the purpose of fitting and retaining the needle electrode, and side plate sections facing the collector cell at a prescribed distance.

Abstract: An electric dust-collection unit including needle electrodes for the purpose of charging particulates within the air by causing corona discharges around their tips, collector cells (collector electrodes) arranged in tubular shape corresponding to the needle electrodes for the purpose of attracting and collecting the charged particulates by static electricity, and deflecting electrodes which are arranged in such a way as to be inserted within the collector cells for the purpose of imparting a deflecting force on the charged particles in the direction of the collector cells. The deflecting electrodes being configured in the form of a hollow column including a forward plate section having a mounting hole for the purpose of fitting and retaining the needle electrode, and side plate sections facing the collector cell at a prescribed distance.

Abstract: The present invention relates to a method and an apparatus for electrostatically precipitating suspended matter from a gas flow, wherein a precipitation electrode which is flown through by the gas flow is provided in the form of a perforated plate behind an ionization source in the direction of flow. The perforated plate has openings which are tapered on their edges in the manner of cutting edges towards the opening.

Abstract: An apparatus (10) to carry out a process, in particular for the electrically induced agglomeration of gas-borne particles, contains a closed flow duct (12) through which is directed an aerosol containing particles (14). For the purpose of the bipolar charging of the aerosol, at least one electrode pair (20, 22) is arranged in the flow duct (12), the electrode (20) being wired, so as to be ungrounded, to the negative pole of a current source, the strength of which is sufficient to produce a corona discharge between the electrodes (20 and 22). The electrodes (20 and 22) of each electrode pair are designed to be needle-shaped and are arranged to be insulated with respect to the flow duct walls, such that their tips (26) are disposed opposite each other.

Abstract: An air cleaner having an improved dust collector is provided. The dust collector can be readily removed for cleaning since the dust collector is directly attached to the rear cover of the filter, such that it can be removed together with the rear cover for cleaning. As a result, the rear cover and the dust collector can be removed in a more safe manner, such that an electric shock can be advantageously avoided. The air cleaner is provided with a processing chamber in the rear portion of the housing and an anion generating plate is disposed within the processing chamber. A locking tab and one lead of a power cord are fixedly attached to one side of the anion generating plate. The other end of the locking tab is provided with a hook from which a spring extends. A rear cover is provided to enclose the processing chamber. The rear cover is provided with a plurality of mounting posts by which a dust collector is mounted thereon.

Abstract: A miniature air purifier produces a corona discharge surrounding a needle-like emitter point connected to a negative DC power supply. The power supply operates from a nine volt battery and contains a step-up voltage inverter having a single transformer outputting high voltage spikes with a voltage multiplier operating on the output of the inverter. The production of high voltage spikes of about 200 Hz rather than a sinusoidally varying voltage significantly reduces current consumption. The needle-like emitter point is located about 1/4-inch from an 80% open mesh metallic grid held at ground potential. Corona discharge at the emitter point ionizes the air and creates ozone, and nitric oxide both of which combine with direct electron impact decomposition to detoxify and destroy a wide variety of airborne pollutants including pathogens, chemicals and allergens.

Abstract: A ceiling fan for cleaning air in a room wherein each blade of the ceiling fan has a cavity open to the top and bottom surfaces of each fan blade and a filter unit in each of the cavities but within the confines of the fan blade such that, when the ceiling fan is operated, the airflow created by the ceiling fan will be forced through the filter unit from the bottom surface through to the top surface, wherein the filter units can collect airborne particles.

Abstract: An electrostatic precipitator including a cylindrical tube the upper end of which is provided with a gas outlet while the lower end is provided with a gas inlet. Mounted adjacent the upper end of the tube is an ion source. Adjacent the lower end of the tube is a diaphragm which is vibrated by an ultrasonic transducer. A liquid is supported on the diaphragm and caused to vibrate in order to produce a mist. An electric potential is established between the ion source and the liquid so that carbon particles contained in the gas stream passing through the precipitator are trapped by liquid droplets which are then conveyed back to a reservoir for the liquid.

Abstract: An ionization unit is placed in an engine exhaust system. The ionization unit comprises an inlet to a first chamber and an outlet from a second chamber. Within the first chamber there is located an anode mesh and a grid mesh adapted to place a negative charge upon particulate matter passing through the first chamber. Within the second chamber there is located an anode element positively charged to attract the negatively charged particulate matter. Relatively clean air is exhausted at the outlet.

Abstract: In electric filters with a negative corona, an aerosol is formed in the entrance area if ammonia is present in the flue gas, reducing the separation performance of the filter. To avoid this, spray electrodes and separation electrodes provided in the entrance area of the filter are wired so that a positive corona forms there. In sections downstream in the flow direction of the gas, spray electrodes and separation electrodes are wired such that a negative corona forms there.

Abstract: An attractive portable air cleaner effectively purifies air in a room or office for added comfort and a healthier environment. Instead of using expensive custom-made filters, the air cleaner uses regular toilet paper or paper towels for customer convenience and lower customer costs. A quiet blower system circulates air through the air cleaner. Ion emitters are positioned near the intake and collector plates support and charge the paper media.

Abstract: A corona discharge reactor (10) and method for chemically activating various constituents of a gas stream by use of corona discharge is provided. The corona discharge reactor (10) includes within a conduit a discharge plate (30a,b) having a plurality of through openings (33) and a plurality of projecting corona discharge electrodes (31,31',35,35'), and an electrode plate (40a,b,c) having a plurality of through openings (43) displaced from and opposing the tips (32) of the corona discharge electrodes (31,31',35,35'). A pulsed energization scheme is employed to intermittently generate a uniformly distributed corona discharge cloud (1000) between the plurality of corona discharge electrode tips (32) and the electrode plate (40a,b,c) during passage of the gas stream through the conduit.

Abstract: Improved ionizing structure for ambient air treatment wherein the structure incorporates an ionizing needle directed in the direction of airflow; the needle is negatively charged to produce an electrostatic field, preferably pulsating, whereby to ionize air constituent molecules, lint, and other entrained constituents, allowing the latter simply to precipitate out of the air and fall to the ground or floor beneath; in such manner ambient air within a room enclosure, for example, is cleaned for maximizing occupant enjoyment as well as for health and other reasons.

Abstract: An electrostatic precipitation system (100) utilizes laminar flow of a particulate-laden gas in order to enhance the removal of sub-micron sized particulates. The system incorporates a vertically oriented housing (105) through which the gas flows downwardly therethrough to a lower outlet port (110). The gas, which may be a flue gas enters the laminar flow precipitator (102) through an inlet port (108) for passage through a charging section (104). The charging section (104) imparts a charge to the particulates carried by the flue gas. The flue gas and charged particles then flow to a collecting section (106) which is downstream and below the charging section (104). The collecting section (106) is formed by a plurality of substantially parallel tubular members, each tubular member defining a collecting passage therein.

Abstract: An automatic air cleaner has a case and a base; wherein the case has a central cavity provided with a number of receiving grooves defined by ribs disposed at both inner lateral walls of the central cavity for a dust collecting plate and a filter plate to be inserted therein. Dirty air pumped into the case body is cleaned in sequence, moving from the dust collecting plate having rectangular dust collecting members cooperating with electric discharge rods, the filter plate made up of non-woven fabric and provided with an odoriferous agent, and then an ozone tube whose generation of ozone contributes to the termination of bacteria existing in the air. Finally anion pins are adapted to electrify the dust left over in the air so that when the fresh air blown out of the through slots of the case by fans driven by motors, the dust will drop onto the ground. In addition, the dust collecting plate, filter plate, and ozone tube can be easily replaced or withdrawn for cleaning in maintenance.

Abstract: A system incorporating an agglomerator is provided for removing fine particulates from a gas stream. The agglomerator (100) is coupled to a flue (12) for agglomerating fines (30) entrained in a gas stream, the agglomerates (40) reentrained into the gas stream are carried by ductwork (14) to an existing particulate removal system (20). Agglomerator (100) includes at least two screen electrodes (102, 104) for charging the particulates (30) and temporarily collecting the charged particles on the collection electrode screen (104). The charging electrode (102) is provided with a plurality of spaced pointed electrode elements (108), the spacing therebetween being proportional to a spacing between the two screen electrodes (102, 104). The screen electrodes (102, 104) have a grid spacing sufficiently large to insure reentrainment of the agglomerates (40) back into the bulk gas stream for separation by the existing particulate removal system (20).

Abstract: A miniature air purifier produces a corona discharge surrounding a needle-like emitter point connected to a novel negative 8,000-volt DC power supply. The power supply operates from a nine volt battery and contains a step-up voltage inverter having a single transformer outputting high voltage spikes with a voltage multiplier operating on the output of the inverter. The production of high voltage spikes of about 200 Hz rather than a sinusoidally varying voltage significantly reduces current consumption. The needle-like emitter point is located about 1/4-inch from an 80% open mesh metallic grid held at ground potential. Corona discharge at the emitter point ionizes the air and creates ozone, and nitric oxide both of which combine with direct electron impact decomposition to detoxify and destroy a wide variety of airborne pollutants including pathogens, chemicals and allergens.

Abstract: An air ionization device for use in industrial, commercial or residential settings which includes a core section shaped to provide internal venturi action in order to force air outwardly from an ozone manifold. Air fins are provided at the front of the cabinet to prevent turbulence of air as it exits the cabinet. The device further includes electronics for providing controlled negative ozone and ionization output, and a 12 VDC power supply for operating system fans and relays. The device can operate as a master unit to control up to four slave units (i.e. up to five units on one system) for providing even distribution of ions and ozone over large industrial areas. In addition, various features are provided to allow for facile servicing of the device, including a purging hose mounted inside the core, removably replaceable ionization needles, and ozone relief holes positioned directly behind the ionization needles for constantly purging the needles and keeping them clean.

Abstract: An air cleaner with separate ozone gas and ionized air outputs, and method of purifying air is provided. The air cleaner includes an exterior housing which houses an ozone generator component and a ionized air generator component. In operation, air is drawn through the air cleaner by means of a blower and is first passed through a multi-layered filter. The air then passes through an ionizer which ionizes the air and induces on it a net negative electric charge. As the ionized air is recirculated back into the device, the negatively charged air is electrostatically precipitated by the filter which maintains a net positive electric charge. The ozone generator component within the housing draws in air via an air pump which produces an output of pressurized air to the ozone generator. Within a mixing chamber of the ozone generator, the pressurized air is mixed with ozone produced therein and is then output through an independent ozone outlet tube.