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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7384456 | Modular frame for air purification devices A modular frame for use in air purification devices is described. In one aspect of the invention, a plurality of frame members are arranged in a linked stack to form a housing for components of an air purification device. The frame members are arranged to define a f... | 06/10/2008 |
| 7377962 | Electric discharge device and air purifying device A discharge device for generating a streamer discharge includes a discharge electrode and a counter electrode. The discharge electrode is in a shape of a wire or rod and is disposed substantially parallel to the counter electrode. Thus, even when a tip of the discha... | 05/27/2008 |
| 7368002 | Ionic air conditioning system The air conditioning system includes a housing having a vent portion and an ion generating unit positioned in the housing. The ion generating unit includes a first electrode, at least one second electrode, and a voltage generator that provides a constant potential d... | 05/06/2008 |
| 7368004 | Electric dust collector The electric dust collector has an oblong holding unit provided on the air channel of an air conditioner or the like; a high-voltage applying device provided at an end of the holding unit; a front-open contact protector of substantially inverted U-shape that contain... | 05/06/2008 |
| 7361210 | Methods and apparatuses for separating froth Methods and apparatuses are provided for separating froth into liquid and gas components. One apparatus includes a container that is configured to hold froth therein and change at least a portion of the froth into substantially separate liquid and gas portions when ... | 04/22/2008 |
| 7361212 | Electrostatic precipitator An electrostatic precipitator is detailed. The precipitator includes a conduit for the passage of particles in an air flow and a generator of an electrostatic field substantially orthogonal to the air flow, and an ion supply, capable of charging the particles, in wh... | 04/22/2008 |
| 7361207 | System and method for electrostatically depositing aerosol particles A system useful for electrostatic deposition (ESD) of aerosol particles and methods of depositing the aerosol particles onto a substrate are disclosed. The ESD system and the method of the present invention are useful for electrostatically depositing nanoparticles p... | 04/22/2008 |
| 7356987 | Exhaust gas recirculation system having an electrostatic precipitator An exhaust gas recirculation system for a power source, has at least one inlet port configured to receive at least a portion of a flow of exhaust produced by the power source. The exhaust gas recirculation system also has an electrode disposed upstream of the at lea... | 04/15/2008 |
| 7354474 | Dry dust filter for using in operations endangered by gases The invention related to dust filters (1) which are especially used in operations endangered by gases and comprise filter elements (10) rendered antistatic by means of derivative constituents such as carbon fibres, salts or special steel fibres (26,... | 04/08/2008 |
| 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 |
| 7311762 | Air conditioner device with a removable driver electrode An air-conditioning device including a housing having at least one grill, an electrode assembly and a driver electrode. Both the electrode assembly and the driver electrode are supported by the housing. The electrode assembly includes a portion that is removable fro... | 12/25/2007 |
| 7294176 | Surface discharge type air cleaning device A surface discharge air cleaning device includes an insulating dielectric body, a discharge electrode formed at the upper surface of the insulating dielectric body, and a ground electrode formed at the lower surface of the insulating dielectric body, the discharge e... | 11/13/2007 |
| 7291207 | Air treatment apparatus with attachable grill Embodiments of the present invention are directed to a method and apparatus for moving air using an air treatment apparatus, the air treatment apparatus preferably including at least one first electrode, at least one second electrode, and at least one third electrod... | 11/06/2007 |
| 7276106 | Electrode wire retaining member for an electrostatic precipitator An electrode wire retaining member for an electrostatic precipitator is provided according to an embodiment of the invention. The electrode wire retaining member includes one or more flexible arm portions extending from the body and formed of an at least partially f... | 10/02/2007 |
| 7270698 | Discharge device and air purifier The distance between a discharge electrode and a counter electrode of a discharge device is set to not more than 10 mm such that a streamer discharge is caused between the electrodes. The frequency of sound made by the streamer discharge is raised to 6 kHz or higher... | 09/18/2007 |
| 7270697 | Electrostatic precipitator Electrostatic precipitators, including wet electrostatic precipitators, having a bank of conductive tubes which receive a gas stream having entrained particulates and an electrode connected to an electric current, wherein the tubes each include an internal restricti... | 09/18/2007 |
| 7267711 | Electrostatic precipitator for diesel blow-by A compact electrostatic precipitator is designed specifically for use in connection with eliminating particles from crankcase emissions of a Diesel engine. Such emissions may carry solid soot particles as well as suspended oil droplets. The electrostatic precipitato... | 09/11/2007 |
| 7264659 | Plate fastener for an electrostatic precipitator cell A plate fastener for an electrostatic precipitator cell is provided according to an embodiment of the invention. The plate fastener includes a fastener shaft including a head. The fastener shaft extends through the electrostatic precipitator cell. The head is adapte... | 09/04/2007 |
| 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 |
| 7261767 | Air purifier Disclosed is an air purifier having a small size so as to be easily mounted to various home appliances, and preventing ozone which is harmful to a human body from being generated, the air purifier including an insulating dielectric including a solid; a discharge ele... | 08/28/2007 |
| 7261764 | System and method for spatially-selective particulate deposition and enhanced deposition efficiency The present invention relates to a methods, apparatuses and systems that utilize electric currents to direct the deposition of particulate matter to various surfaces. ... | 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 |
| 7244289 | Air purifier with detachable ionizer unit An air purifier includes an outer casing and an ionizer module. The outer casing has a top portion, a bottom portion having an electrode opening, an air purifying cavity defining between the top and bottom portion, and a peripheral opening communicating with the air... | 07/17/2007 |
| 7238225 | Plasma air dust collector In a plasma air dust collector, the plasma air dust collector includes a first electrode fixing unit and a second electrode fixing unit respectively having a power terminal; at least two dust collecting electrodes; a discharge electrode arranged between the dust col... | 07/03/2007 |
| 7236290 | Electrophoretic medium with improved stability An electrophoretic medium comprises a liquid and at least one particle disposed within the liquid and capable of moving therethrough on application of an electric field to the medium. The medium further comprises a free radical scavenger selected from the group cons... | 06/26/2007 |
| 7212393 | Air ionization module and method An air ionizing module and method for generating ions of one and opposite polarities within a flowing stream of air or other gas includes a thin-filament electrode mounted within the flowing stream in regions thereof of maximum flow velocity. The thin-filament elect... | 05/01/2007 |
| 7160363 | Electrostatic filter construction This publication discloses an electrostatic filter construction, which includes electrodes connected to a first electrical potential, second electrodes, which are electrically insulated from the first electrodes, and an insulating material acting as a particle filte... | 01/09/2007 |
| 7160365 | Ion generating apparatus, air conditioning apparatus, and charging apparatus An ion generating apparatus is built by sandwiching a dielectric layer between an induction electrode and a discharge electrode. The induction electrode is formed of a metal substrate of, for example, aluminum. Even when the apparatus is made larger, it offers impro... | 01/09/2007 |
| 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 |
| 7156899 | Area wide municipal electronic air cleaner and method The present invention provides a power generation facility that is adapted to clean large air masses. Air from the environment, which normally contains the most pollutants, is directed into an air flow path through which large quantities of air are directed by a plu... | 01/02/2007 |
| 7101424 | Ionizer and use thereof in an exhaust gas purifying system for moisture-laden gases In an ionizer of an exhaust gas ionization system for ionizing moisture-laden gases in a channel comprising a nozzle plate having circular nozzle openings through which the gases are conducted, a high voltage electrode support grid arranged downstream of the nozzle ... | 09/05/2006 |
| 7098462 | Microfabricated device for selectively removing and analyzing airborne particulates from an air stream One embodiment of the present invention provides a system for ionizing airborne particulates. The system includes an insulating substrate and a first electroplated structure on the insulating substrate. This first electroplated structure includes an anchor and a pro... | 08/29/2006 |
| 7077890 | Electrostatic precipitators with insulated driver electrodes Electrostatic precipitator (ESP) systems and methods are provided. A system includes at least one corona discharge electrode and at least one collector (and likely, at least a pair of collector electrodes) that extend downstream from the corona discharge electrode. ... | 07/18/2006 |
| 7068928 | Method and apparatus for photographically recording an image A photographic imaging apparatus includes a housing defining an interior cavity, an opening at one end of the housing to allow light to enter the interior cavity, and a photographic imaging substrate located within the interior cavity opposite from the opening for r... | 06/27/2006 |
| 7056362 | Separator tank assembly A separator tank assembly including a separator tank having an interior chamber, a corrosion-resistant layer applied over at least a portion of the separator tank interior chamber, and a separator element positioned within the interior chamber of the tank. The separ... | 06/06/2006 |
| 7052531 | Local cleaning system for constructing clean shielded space with no need for dedicated partition wall, using charged air shower unit providing ion wind and local exhaust device A local cleaning system which uses a charged air shower unit for forming a shield curtain by means of an ion wind, and a local exhaust device for exhausting the air containing dirt and dust settled down on the floor by the ion wind to construct a clean shielded spac... | 05/30/2006 |
| 7014686 | Electrostatic air cleaner An air cleaner electrode assembly includes an elongated collector electrode and a plurality of elongated discharge electrodes arranged around the collector electrode. A fan may move air in a direction parallel to a length of the electrodes. The collector electrode m... | 03/21/2006 |
| 6958089 | Structure of an electrostatic precipitator An electrostatic precipitator includes a frame, several parallel square metallic rods securely disposed in the frame, and several metallic boards positioned parallel in the frame for charges to be deposited on, and spacing elements; the metallic boards have through ... | 10/25/2005 |
| 6951580 | Method for minimizing bowing of collector plates in an electrostatic precipitator, and a collector plate-clip combination A bow-reduced precipitator collector plate assembly and an appertaining method include a precipitator collector plate that contacts a spring-like stiffening element configured to be attached to a fixed anchor or an adjacent anchoring collector plate. The stiffening ... | 10/04/2005 |
| 6921423 | Separator tank assembly and method of manufacture A separator tank assembly including a separator tank having an interior chamber, a corrosion-resistant layer applied over at least a portion of the separator tank interior chamber, and a separator element positioned within the interior chamber of the tank. The separ... | 07/26/2005 |
