Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8128743 | Gas scrubber with adapted drop separators Gas scrubber, with at least one drop separator level which spans a cross section of the gas scrubber, the gas scrubber comprising at least one edge rest and a plurality of carrying beams, spanning the cross section, for the mounting of drop separators which jointly ... | 03/06/2012 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 7309062 | Fixed wet type dehumidification and energy recovery device A dehumidification and energy recovery device includes a casing defining an interior that is divided into two vertically stacked sections, a channel extending vertically between the sections and forming upper and lower openings, absorption devices arranged inside th... | 12/18/2007 |
| 7275737 | Device for simultaneously cooling and removing liquid from a gas from a compressor Device for simultaneously cooling and removing liquid from compressed gas of a compressor element (1) or of several compressor elements (1) which are connected either or not in parallel or in series, which device includes a pressure vessel (2) w... | 10/02/2007 |
| 7264044 | Heat exchange structure A heat exchange structure includes at least three wave-shaped non-woven cloth layers. Each wave-shaped non-woven cloth layer has a plurality of crest tops and trough bottoms. Adjacent wave-shaped non-woven cloth layers are interconnected at intersections of crest to... | 09/04/2007 |
| 7101425 | Washer and method for purifying gases In a washer for cleaning gases that contain particulate and/or gaseous impurities, the gases are conveyed through an absorption column that is sprayed with washing fluid. An additionally provided jet pump (7) operates with the washing fluid, wherein said jet ... | 09/05/2006 |
| 7025808 | Reduction of the aerosol-related discharge from a separation column and apparatus therefor A process is proposed for reducing the aerosol-related discharge from a separation column (1) in which one or more components are separated off from a gaseous or liquid starting mixture (G) at actively separating internals (2), aerosols being present o... | 04/11/2006 |
| 6924140 | Closed loop work station bioremediation using mini-reactor cartridges A system for capturing and neutralizing HAP's (hazardous air pollutants) and VOC's (volatile organic compounds) at the source point by providing a closed loop remediation system which utilizes an air collection, treatment and control module containing a predetermine... | 08/02/2005 |
| 6919000 | Diffusion driven desalination apparatus and process A diffusion driven desalination apparatus and related method includes structure for receiving a heated water stream and creating at least one region having a thin film of water and structure for forcing a low humidity air stream over the thin film of water, wherein ... | 07/19/2005 |
| 6451096 | Air cleaner for removing air pollutants by water spray type of dust collecting system An air cleaner for removing air pollutants by a water spray type of dust collecting system, which includes a dust collecting part and an air and water separating part in the interior of an air duct, the dust collecting part composed of primary and seconda... | 09/17/2002 |
| 6409157 | Air treatment unit An air treatment unit for treatment of an air stream, including a pad having a multitude of narrow air-flow channels, the walls of which are formed by corrugated sheets of a stiff material, the sheets being positioned and fixed generally in parallel plane... | 06/25/2002 |
| 6387165 | Airborne molecular contaminant removing apparatus A pair of jet nozzles are constructed for vapor-liquid contact removal in a gaseous molecule impurity removal apparatus, with one of the nozzles producing a counter flow to an upstream direction and the other nozzle producing a flow parallel to a downstre... | 05/14/2002 |
| 6248155 | Combination humidifier and air purifier A humidifier/air purifier including a housing defining a water reservoir, an air inlet opening and an air outlet opening; a generally V-shaped wicking element in fluid communication with the reservoir; an air filter with a generally V-shaped air filter me... | 06/19/2001 |
| 6174510 | Multi-pass cocurrent flow sulfuric acid tower process A process for the absorbing of a hot, dry gas stream of sulfur trioxide (SO3) in a stream of strong sulfuric acid. The process includes the steps of passing the hot, dry gas stream of SO3 into a sulfuric acid absorption tower above a... | 01/16/2001 |
| 6059866 | Air washer Washer media are disposed in an air inlet and an air outlet of a water spray chamber. A basic unit is formed by first stage nozzles from which spraying water that reaches the inlet washer media is sprayed in the reverse direction to an air flow; a water s... | 05/09/2000 |
| 6019816 | Systems and methods for removing residue from process gases exhausted from microelectronic device fabrication processes Process gases from microelectronic device fabrication processes are pumped through a filter unit including a plurality of absorbers for absorbing water entrained within the process gases. Residues deposited within the filtering unit are removed by sprayin... | 02/01/2000 |
| 5993522 | Compressed air strainer and drying treatment A compressed air strainer and drying treatment is provided in which a filter core of the strainer can be used successively without replacement. The strainer includes a strainer main trunk, an admitting pipe stretching into the inside of the main trunk, a ... | 11/30/1999 |
| 5980617 | Gas processing contactor tower A contraflow gas/liquid contactor tower having a gas diffuser to provide uniform gas flow in the tower, a set of partial helical membrane sheets running generally parallel to the tower axis and the gas flow, supported between an upper liquid distributing ... | 11/09/1999 |
| 5879434 | Multi-washer and method of total cleaning of gases The invention relates to a multi-washer, and to a method of cleaning synthesis gases obtained by the gasification of wastes of the most varied composition. Such multi-washers are used to remove lumpy and adhesive materials from the synthesis gas, such as ... | 03/09/1999 |
| 5743944 | Fluid clathrate system for continuous removal of heavy noble gases from mixtures of lighter gases An apparatus and method for separation of heavy noble gas in a gas volume. An apparatus and method have been devised which includes a reservoir containing an oil exhibiting a clathrate effect for heavy noble gases with a reservoir input port and the reser... | 04/28/1998 |
| 5660615 | Exhaust gas scrubbing process Exhaust gas is brought into contact with a washing liquid chiefly consisting of water in at least two washing stages. In the last washing stage, fresh water and/or a washing liquid containing fresh water is sprayed into the exhaust gas. In the penultimate... | 08/26/1997 |
| 5634962 | Method for removing hazardous gases from enclosed structures A method for removing hazardous gases having water solubility from storage tanks by scrubbing steps is described. Additionally, a method for removing ethylene dichloride contamination from soil is disclosed.... | 06/03/1997 |
| 5558687 | Vertical, packed-bed, film evaporator for halide-free, silicon-containing compounds A vaporizer (film evaporator) (13) for halide-free, silicon-containing liquid reactants used in producing preforms is provided. The vaporizer includes a plurality of packed-bed columns (22) surrounding a central tube (24). A mixture of liquid reactant, e.... | 09/24/1996 |
| 5393314 | Horizontal pass, multiple packed-bed gas scrubber A horizontal pass, multiple packed-bed gas scrubber features relatively low pressure drop flow paths for both the gas flow and the scrubbing liquid flow, allowing large scale mass transfer of solute from the gas to the liquid. The scrubber is volumetrical... | 02/28/1995 |
| 5300131 | Compact scrubber A small modular portable flooded bed scrubber suitable for installation in confined areas is disclosed. The scrubber may be formed in a plurality of modular units, such as two or three units, and requires of minimum of accessory devices. The scrubber effl... | 04/05/1994 |
| 5209766 | Laboratory gas scrubber A laboratory gas scrubber for removing soluble contaminant gases from the exit air from laboratory extractor hoods comprises a cabinet which is assigned to a laboratory extractor hood and is placed close beside the latter to form a closed subassembly and ... | 05/11/1993 |
| 5139544 | Gas-liquid contact column with improved mist eliminator and method A gas-liquid column and method having improved mist elimination particularly for the treatment of corrosive fluids which comprises directly introducing a liquid from a liquid distributor resting on a top structured packing layer into the upright flow pass... | 08/18/1992 |
| 5116393 | Absorber for dehydrating gas with liquid desiccant An improved absorber for contacting gas having water entrained therein with a liquid desiccant the absorber being in the form of an upright vessel having a generally horizontal partition dividing the vessel interior into a treating zone and a collection z... | 05/26/1992 |
| 4968335 | Gas absorption tower A gas absorption tower comprising a primary desulfurization absorption section and a secondary desulfurization section are mounted in lower and higher portions, respectively, of the inside of the tower body. The primary absorption section mounted in the l... | 11/06/1990 |
| 4968336 | Plasma etch vaporous exhaust collection system A system for treating and removing toxic by-products of semiconductor plasma etching processes utilizes a collection box having various treatment chambers in seriatim. A heated inlet conducts a vaporous process stream into an expansion chamber where the g... | 11/06/1990 |
| 4806148 | Apparatus for biological treatment of waste gases An apparatus for removal of malodorous and/or toxic components from wast gases by biological treatment of the same. Such removal is accomplished by passing the gas stream through a humidifying temperature conditioning section and then through a filter bed... | 02/21/1989 |
| 4787920 | Scrubber filter A scrubber filter used, for example, in connection with a flooded bed scrubber system, characterized as a series of nylon or plastic brushes arranged, in rows, within a frame and overlaid with mesh, where the filter is disposed, during use, in a tilted re... | 11/29/1988 |
| 4511379 | Apparatus for treating flue gas and methanol containing effluents A gas scrubber is provided which is particularly useful for scrubbing flue gas and condensate effluent from a kraft pulp mill. The scrubber comprises a first chamber having inner and outer looped parallel side walls, and first and second end walls extendi... | 04/16/1985 |
| 4312646 | Gas scrubbing tower A gas scrubbing tower is described which has a top region, a sump region and at least two washing stages between these regions. The tower comprises gas entry means between the the sump region and the lowermost of the washing stages; gas exit means in the ... | 01/26/1982 |
| 4249778 | Methods and apparatus for removing moisture from air A mining machine of the type comprising a body, a driven cutter mounted on the body, and an air-cleaning system comprising ducting for conducting dust-laden air, a scrubber for applying liquid to the dust-laden air, and a demister for thereafter removing ... | 02/10/1981 |
| 4210428 | Gas scrubbing plant and baffles therefor A gas scrubbing plant having a gas scrubbing stage, a washing liquid separating stage and a stage for washing out suspended matter therebetween. This latter stage includes a plurality of gas baffles which accelerates the gas and then decelerates it while ... | 07/01/1980 |
| 4166730 | Scrubber This invention relates to a scrubber for removing or neutralizing pollutants from air or other gaseous media by means of water and/or suitable chemicals. The construction embodying the invention is simple, compact and susceptible to prefabrication and pro... | 09/04/1979 |
| 4050912 | Apparatus for cooling hot gases There is provided an efficient, economical apparatus for cooling hot gases which includes three generally cylindrical, tubular members arranged in an upstanding U-shaped configuration. The hot gases are introduced downwardly into the first leg or member o... | 09/27/1977 |
| 4045192 | Mobile filtering apparatus for keeping patients under aseptic conditions A mobile air filtering apparatus for hospital rooms, comprises a housing having an inlet and an outlet. A pre-filter is located at the inlet and a fan for directing air in succession through a heater, a diffusion foil moistener and a mechanical filter. Th... | 08/30/1977 |
| 3955932 | Inert gas generator An inert gas generator arrangement in which a rotationally symmetric burner is substantially vertically oriented with respect to a cylindrical housing having within it a heatresistant steel cylindrical wall enclosing a firing chamber, the cylindrical hous... | 05/11/1976 |
