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| Number | Title | Issue Date |
| 7534288 | High performance electrostatic precipitator Electrostatic system is for optimal charging of aerosols and particulates. In order to improve their collection, the system uses a combination of DC field and AC fields produced by multiple AC electrodes. The system minimizes the size and power consumption of the de... | 05/19/2009 |
| 7404847 | Apparatus and method for enhancing filtration Disclosed is a filtration enhancement apparatus and an associated method. The apparatus includes a number of electromagnetic grids that are placed in series. The first grid conditions ambient particles to generate particles with both a positive and a negative charge... | 07/29/2008 |
| 7377957 | Method and construction of filters and pre-filters for extending the life cycle of the filter bodies therein A method of utilizing a filter having a filter body removing solid particles from a fluid, in order to extend the life cycle of the filter body before cleaning or replacement thereof is required, characterized in applying to the fluid, upstream of the filter body, a... | 05/27/2008 |
| 7364606 | Exhaust emission control device Provided are a hollow inner electrode constituted by an electrically conductive filter capable of capturing particulates, a cylindrical outer electrode circumferentially surrounding the electrode, a housing incorporated in a flow passage of exhaust and accommodating... | 04/29/2008 |
| 7319222 | Mass spectrometer and mass analysis method A linear trap which allows for charge separation and ion mobility separation in a speedy manner, and enables measurement with high duty cycle. A mass spectrometer comprises an ion source, an ion trap for trapping ions ionized by the ion source, an ion trap controlle... | 01/15/2008 |
| 7316735 | Dust collector An apparatus, which collects particulate matter contained in a gas flowing through a flow path formed in a cylindrical shape having an outer surface and an inner surface, includes: an outer shell that forms the outer surface of the flow path; a ground electrode that... | 01/08/2008 |
| 7300496 | Methods and apparatus for air pollution control A method for filtering particle-laden gas includes electrostatically precipitating particles from the particle-laden gas to produce a gas having residual particulates, agglomerating the residual particulates, and using a fabric filter to filter the agglomerated resi... | 11/27/2007 |
| 7297184 | Apparatus and method for separating gases An apparatus and method to separate a mixture of gases—such as carbon dioxide and methane—by an inorganic membrane comprising a ceramic support and a silica layer made from a silicon elastomer sol. The apparatus and method can efficiently separate the gaseous mi... | 11/20/2007 |
| 7279028 | Electrostatic filter An electrostatic filter having an improved dielectric is described. The dielectric constitutes a dielectric mat formed from high porosity non-woven fibers having pores that have a void fraction of at least 97%. The dielectric mat is sandwiched by a pair of porous el... | 10/09/2007 |
| 7270314 | Method for treating a fluid to increase oxygen concentration and reduce surface tension using a direct current generator or an electromagnetic field generator A method for treating a fluid to increase oxygen content while reducing surface tension. The first step is flowing a fluid into a surface tension modification device at a first pressure and applying a direct current or an electromagnetic wave to modify a physical ch... | 09/18/2007 |
| 7261765 | Electrostatic precipitator An electrostatic precipitator having a plurality of electrostatic precipitation units positioned within the electrostatic precipitator. Each of the electrostatic precipitation units includes a plurality of negative wire electrodes and a plurality of positive electro... | 08/28/2007 |
| 7258730 | Air purifier Disclosed is an air purifier with a small size, having an excellent air purifying capacity, capable of preventing a large amount of ozone from being generated, the ozone harmful to a human body. The air purifier includes a case, a pair of discharge electrodes provid... | 08/21/2007 |
| 7175695 | Apparatus and method for enhancing filtration Disclosed is a filtration enhancement apparatus and an associated method. The apparatus includes a number of electromagnetic grids that are placed in series. The first grid conditions ambient particles to generate particles with both a positive and a negative charge... | 02/13/2007 |
| 7160364 | Discharge electrode A discharge electrode for an electrostatic precipitator has a collar having two oppositely disposed arms extending radially therefrom, with each radially extending arm terminating in a number of tines at its free end. Each tine is pointed and is curved relative to a... | 01/09/2007 |
| 7141098 | Air filtration system using point ionization sources A filtration system for filtering particulates from air. A plurality of point ionization sources are positioned in the proximity of the periphery of an air flow channel and being oriented to generate ions in the proximity of the air flow channel in a direction gener... | 11/28/2006 |
| 7112232 | Air cleaning apparatus An air cleaning apparatus includes a blowing unit and a filtering unit which are easily removed from and installed in a cabinet, allowing the air cleaning apparatus to be easily cleaned. The cabinet included in the air cleaning apparatus may be used as a table. The ... | 09/26/2006 |
| 7105041 | Grid type electrostatic separator/collector and method of using same An electrical type grid electrostatic collector/separator removes particles from an air stream. The apparatus includes multiple parallel grids that act as the porous material, enclosed in a sealed compartment so that the entrained air flows parallel and between one ... | 09/12/2006 |
| 7090717 | Air purifier An air purifier has a simply manufactured and assembled ionizer, which improves the charging efficiency for dust particles using multi-directional discharge and prevents electrical accidents. The air purifier includes an ionizer and a collector. The ionizer includes... | 08/15/2006 |
| 7086401 | Respiratory mask with inserted spacer A respiratory mask that conforms to N95 performance and other high performance standards with improved air permeability for improved air circulation. The respiratory mask has a mask body and a headband for putting on the respiratory mask to the face of a wearer, the... | 08/08/2006 |
| 7048786 | Apparatus for treating a fluid to increase oxygen concentration and reduce surface tension An apparatus for treating a fluid so as to increase oxygen content while reducing surface tension, The apparatus comprises a surface tension modification generator (STMG) comprising an STMG chamber for receiving a pressurized fluid at a first pressure. Probes dispos... | 05/23/2006 |
| 7048780 | Air purifier An air purifier has a simply manufactured and assembled ionizer, which increases the charging efficiency for dust particles through maximally increased discharge spaces and prevents electrical accidents. The air purifier includes an ionizer and a collector. The ioni... | 05/23/2006 |
| 7045734 | Spark induction power conditioner for high tension physical separators A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The ... | 05/16/2006 |
| 7041157 | Filter system for spreading soot particles from a stream of exhaust gas An apparatus for separating and converting exhaust particulates from a stream of exhaust gas, especially a diesel engine, into gaseous substances, in which the exhaust gas is guided through a honeycomb filter (6) made from a porous ceramic material whose axia... | 05/09/2006 |
| 7025939 | Power supply for processing of gaseous media A reactor (1) particularly for the plasma treatment of internal combustion engine exhaust gases, in which a power supply (10) and a reactor bed (2) of the dielectric barrier discharge type are connected directly and enclosed in an earthed metal ... | 04/11/2006 |
| 6958134 | Electro-kinetic air transporter-conditioner devices with an upstream focus electrode An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The conditioner includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector el... | 10/25/2005 |
| 6954995 | Drying/washing machine A washer-dryer has a tub, a drum rotatably disposed inside the tub, and warm air feeding means for feeding warm air to dry laundry put in the drum. The washer-dryer further has an ion generating device that generates ions for sterilizing the laundry. The ion generat... | 10/18/2005 |
| 6955075 | Portable liquid collection electrostatic precipitator A portable liquid collection electrostatic collection precipitator for analyzing air is provided which is a relatively small, self-contained device. The device has a tubular collection electrode, a reservoir for a liquid, and a pump. The pump pumps the liquid into t... | 10/18/2005 |
| 6932857 | Multi-stage collector and method of operation A multi-stage collector of the type used to collect particles from industrial gas. The collector can contain multiple narrow and wide zones formed by a plurality of parallel corrugated plates. Contained in the narrow zones can be elongated electrodes with sharp lead... | 08/23/2005 |
| 6926758 | Electrostatic filter An electrostatic filter (1) has a chamber (11) into which a gas stream is introduced. An ioniser (19) in the form of an electrode array (20) is located in the chamber (11) and creates an ionising zone through which the gas stream p... | 08/09/2005 |
| 6919053 | Portable ion generator and dust collector This invention relates to a portable, battery-operated ion generator featuring an electronic high voltage system which uses extremely low battery power. The ion generator can be made in the form of a pendant using a standard 9-volt alkaline battery, which can last f... | 07/19/2005 |
| 6919698 | Electrostatic fluid accelerator for and method of controlling a fluid flow An electrostatic fluid accelerator includes a first number of corona electrodes and a second number of accelerating electrodes spaced apart from and parallel to adjacent ones of the corona electrodes. An electrical power source is connected to supply the corona and ... | 07/19/2005 |
| 6506348 | Heavy oil fired boiler exhaust gas treatment apparatus There is provided a heavy oil fired boiler exhaust gas treatment apparatus which removes soot and dust and SO3 in the heavy oil fired boiler exhaust gas efficiently at a low cost without using an excessively large apparatus. The treatment appar... | 01/14/2003 |
| 5707428 | Laminar flow electrostatic precipitation system 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 downward... | 01/13/1998 |
| 5655210 | Corona source for producing corona discharge and fluid waste treatment with corona discharge A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the lengt... | 08/05/1997 |
| 5593560 | Fluid-filtering device for filtering out particulates in fluid A method of charging, coagulating, and filtering out particulates in a fluid. In this method, impurity particulates typified by coloring matter particulates can be efficiently removed without inducing clogging and without the need of maintenance for a lon... | 01/14/1997 |
| 5547493 | Electrostatic precipitator An electrostatic precipitator, and more particularly an electrostatic precipitator having a sets of improved plate type electrodes having opposing surfaces defining collecting and ionization zones therebetween, and with one of the electrodes in each pair ... | 08/20/1996 |
| 5492677 | Contaminated air purifying apparatus A contaminated air purifying apparatus capable of decreasing particles such as dust floating in air, soot produced by a combustion engine and the like and air pollutants such as nitrogen oxides (NOx) contained in exhaust gas. Particulates such as dust, so... | 02/20/1996 |
| 5439513 | Device for focussing particles suspended in a gas stream A device for controlling the motion of particles suspended in a gas stream is provided, including a pipe, through which at least a fraction of the gas stream flows, a source of AC voltage, a source of DC voltage, and a plurality of electrode sets position... | 08/08/1995 |
| 5435837 | Ion generation structure in environmental systems Ionization systems in and for laundry dryers and other contexts, whereby to neutralize static electricity build-up and acidic conditions, and thereby create environmentally friendly systems for drying clothes and other fabrics, generally prolonging fabric... | 07/25/1995 |
| 5405434 | Electrostatic particle filtration An on board electrostatic filter for a vacuum cleaner is disclosed. The filter includes a pair of conductive filaments insulated from one another and disposed close together in a substantially parallel, side-by-side relationship. Circuitry is provided for... | 04/11/1995 |
