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| Number | Title | Issue Date |
| 7431901 | Apparatus and method for deodorizing confined air spaces which utilize baking soda Apparatus and methods for removing malodor from the air, particularly from confined spaces are disclosed. Such devices and methods are useful for example for storing and preserving food in closed compartments such as refrigerators. The apparatus and methods utilize ... | 10/07/2008 |
| 7309384 | Method and apparatus for filtering gas with a moving granular filter bed A method and apparatus for filtering gas (58) with a moving granular filter bed (48) involves moving a mass of particulate filter material (48) downwardly through a filter compartment (35); tangentially introducing gas into the compartmen... | 12/18/2007 |
| 7178384 | Method and apparatus for measuring ultralow permeation Method and apparatus for testing ultralow moisture permeation through a sample such as a thin barrier film by exposing one surface of a sample to be tested for moisture permeation to a predetermined humidity of HTO. The HTO permeating therethrough is collected in a ... | 02/20/2007 |
| 7077888 | Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be ... | 07/18/2006 |
| 6932850 | Pleated filter and a method for making the same A filter may comprise a plurality of pleats, at least one pleat including a pair of pleat legs and pleat tip region. In some embodiments, a thickness of pleat tip region at a point spaced about one to four pleat leg thicknesses from the end of the pleat tip region m... | 08/23/2005 |
| 6312489 | Filter element for an air filter and a method for the production thereof A filter element for an air filter, including a filter insert (2; 8; 10) and a seal (6) extending around the outer edges of the filter insert on the flat side thereof; the filter insert being folded in a zig-zag or pleated form and being composed of filte... | 11/06/2001 |
| 6269681 | Group of particles for air filter test and method of air filter test The present invention provides a novel group of particles for air filter inspection which solves problems caused by volatilization and scattering of those particles at the downstream side of the air filter in use, enables an air filter inspection with sup... | 08/07/2001 |
| 6042628 | Cyclone type dust collector A cyclone type dust collector having a raw air intake aperture, an air separating chamber including a cylinder of upper part and a reversed circular cone of lower part, inner and outer clean air exhaust ducts, the bottom of the air exhaust ducts being clo... | 03/28/2000 |
| 5968215 | Combined inlet outlet air filter element An air filter element for internal combustion engines includes a filter media having an inlet portion and an outlet portion positioned adjacent to one another, so that a single filter element may be used with an air filter assembly; the filter element hav... | 10/19/1999 |
| 5964085 | System and method for generating a gaseous fuel from a solid fuel for use in a gas turbine based power plant A system and method for generating power by producing a clean gaseous fuel from a solid fuel, such as coal. A flow of oxygen enriched compressed air is formed by combining compressed ambient air from a gas turbine compressor and a flow of oxygen from a ai... | 10/12/1999 |
| 5846274 | Manhole biofilter A biofilter for use in a manhole of a sanitary sewer system which allows sewer gases to escape from the system driven by the pressure differential between the aboveground atmosphere and the underground pressure. Sewer gases are chemically changed by their... | 12/08/1998 |
| 5607649 | Method and apparatus for processing a particulate material in a fluidized bed chamber An apparatus for processing a particulate material containing an inflammable component, such as ethanol or another solvent, comprises a fluidized bed chamber with a perforated bed plate arranged therein. The particulate material may be fluidized on the be... | 03/04/1997 |
| 5545240 | Deodorants and gas filters therefor Deodorant comprising 5 to 100% by weight of a calcium phosphate compound having a molar ratio of Ca/P of 0.8 to 2.0, a deodorant sheet and filter sheet containing such calcium phosphate compound, and a functional paper containing 10 to 80% by weight of a ... | 08/13/1996 |
| 5330726 | Device for the separation of undesired exhaust gas components A device for separating undesired exhaust gas components from a fluid comprises a reactor with a reaction chamber and having a top and a bottom. The top has a device for introducing a granular adsorption medium. The bottom comprises first and second oppos... | 07/19/1994 |
| 5238659 | Moving granular bed dust removal and reaction apparatus A moving granular bed dust removal and reaction apparatus using glanular reaction agent as a granular bed material comprises a generally cylindrical, air-tight vessel disposed vertically, which has a gas outlet port, a reaction agent supply port and a rea... | 08/24/1993 |
| 5203892 | Coke filter The invention relates to a coke filter for cleansing a gas stream, containing a temperature measuring arrangement having a photoconductor which is supplied with pulsed laser light and is passed in a loop through the filter chamber near the outlet openings... | 04/20/1993 |
| 5130106 | Moving bed radial flow reactor for high gas flow Void blowing by gas flow through a bed of particulate material is avoided by the use of a cover plate that eliminates void spaces at the top of the bed and a vertical duct that allows a head of particulate material to be maintained above the cover plate. ... | 07/14/1992 |
| 5110329 | Filtering device for dust and exhaust gases of glass melting furnaces containing sulfurous compounds A filtering device for dust and exhaust gases of glass melting furnaces containing sulfurous compounds wherein the filtering medium is mineral wool which can be passed across the exhaust gas flow by means of a temperature-stable belt that matches the open... | 05/05/1992 |
| 5000770 | Shaft having a moving bed of pourable material Device for the separation of components, preferably heavy metals, sulfur dioxide, contained in gas and for dust removal in gaseous media charged with solids, especially in cold and hot preparation gases and combustion gases by means of a pourable granular... | 03/19/1991 |
| 4973342 | Device with granular bed filters for raw gas purification A device for separating coarse and/or fine particles from raw gas, including a filter shell with an inlet and an outlet for bulk material, granular bed filters reaching into the raw gas inlet duct, and purified gas outlets communicating with a common outl... | 11/27/1990 |
| 4963166 | Vapor purification apparatus Apparatus for removing contaminants from vapor utilizing a vertical flow passage through an adsorption bed vertically arranged in an upright housing. The adsorption bed may comprise several layers of gas-adsorbing media particularly suitable for removing ... | 10/16/1990 |
| 4960447 | Reactor with moving layer for the removal of undesirable gaseous components from gases A reactor having a moving layer for the removal of undesirable components for gases has an upright moving-adsorber chamber flanked by jalousie arrays of shutters laterally separating that chamber from a gas inlet chamber and a gas outlet chamber communica... | 10/02/1990 |
| 4946486 | Scrubber system for the removal of contaminants from a fluid stream A scrubber which dries and removes contaminants from a fluid stream (a gas-liquid stream) using as a media, particulate material which can be char obtained from a gasifier, the scrubber system processing the gas and cooling liquid combined with the gas wh... | 08/07/1990 |
| 4880608 | Contactor/filter improvements A contactor/filter arrangement for removing particulate contaminants from a gaseous stream includes a housing having a substantially vertically oriented granular material retention member with upstream and downstream faces, a substantially vertically orie... | 11/14/1989 |
| 4877426 | Method and apparatus for unloading vapor adsorbers The draft forcing fan system in a vapor adsorber is used to extract spent powdered or granular adsorbent from the contacting column by blocking the normal air route intake and discharge ducts. Auxiliary fittings mounted on the intake and discharge ducting... | 10/31/1989 |
| 4874585 | Economic recovery and utilization of boiler flue gas pollutants Improved methods and apparatus for removing unwanted pollutants from flue gases are disclosed. A sequence of at least three vertical beds of particulates is disposed in the flue gas exhaust duct. A first bed comprises boiler ash or sand. Lime in the fly a... | 10/17/1989 |
| 4848992 | Gas filter system A gas filter system, suitable for use in a safety installation for nuclear reactor confinement vessels, comprises a generally cylindrical enclosure having a closed bottom. In an upper part of the enclosure is an inlet for the gas to be filtered. There is ... | 07/18/1989 |
| 4726821 | Apparatus for the treatment of substrates in a gas stream In an apparatus for the treatment of substances in a gas stream, in particular for the absorption and/or adsorption or filtering of gases, a plurality of annular treatment spaces, which are arranged concentric to a vertical axis in each case and are used ... | 02/23/1988 |
| 4725290 | Method for the purification of air or gas streams by a multi-path adsorption principle and moving-bed filtering apparatus for performing the method For the purification of air or gas streams the air or gas is conducted across a multi-zone adsorption apparatus through which a particulate filter material is moved downwardly by gravity. The gas stream is first admitted to the adsorption apparatus adjace... | 02/16/1988 |
| 4652289 | Purification of effluent gases The disclosure describes a method and a system for treating gaseous effluents to remove impurities therefrom, these gaseous effluents flowing out from a high temperature reactor, into which a particulate material is being fed. The method comprises directi... | 03/24/1987 |
| 4650647 | Apparatus for removing acid constituents from waste-gas An apparatus for removing acid constituents such as HCl and/or SOx from the waste-gas generated by furnaces,incinerators and the like wherein the calcium-containing powder material is blown into a waste-gas duct to form a lean fluidized flow un... | 03/17/1987 |
| 4629480 | Stratified bulk material filter The housing of the stratified bulk material filter contains several vertical bulk material layers which may be traversed transversely by crude gas flow, and are enflanked at both sides by delimitations and which may be supplied with particulate bulk mater... | 12/16/1986 |
| 4624748 | Catalyst system for use in a distillation column reactor A novel catalyst system for use in a distillation column reactor is disclosed including annularly-defined spaces within the reactor comprised of vapor-permeable material with packed catalyst and alternately positioned vapor barrier means.... | 11/25/1986 |
| 4622210 | Sulfur oxide and particulate removal system A system is provided in which particulates and sulfur oxides are simultaneously removed from flue gases in a granular bed filter with special sulfur oxide-capturing and particulate-removing material. The spent sulfur oxide-capturing and particulate-removi... | 11/11/1986 |
| 4622052 | Stratified bulk material filter Within its dust gas space, the stratified bulk material filter receives the layers of bulk material which are bordered at either side by delimitations, may be traversed transversely by a flow of flue gas or dust gas, and which are combined in pairs to def... | 11/11/1986 |
| 4601736 | Dynamic gas filter apparatus An apparatus (1) for filtering dust from a gas has a dynamic gas treatment region (54) defined by inflow screen (3) and outflow screen (53). A quantity of filter medium (5) from hopper (13) vertically traverses the gas treatment region (54) as dust-laden ... | 07/22/1986 |
| 4566882 | Filter for cleaning gases A filter structure including a circular housing and annularly disposed individual filter chambers each containing a layer of bulk filter material with a centrally located waste channel having openings leading from each of the chambers above the surface of... | 01/28/1986 |
| 4548623 | Perforated trough conditioning device An apparatus for conditioning a fluid stream or a flow of granular solids at high volume and low velocity comprising a substantially closed cylindrical body having its side walls defined by a permeable helical trough joined to a vertically inclined baffle... | 10/22/1985 |
| 4505723 | Filter apparatus Electrified filter bed apparatus includes inner and outer cylindrical bed-retaining structures for confining a granular bed therebetween. The inner cylindrical structure may comprise a cage of superposed frusto-conical louvers and the outer structure may ... | 03/19/1985 |
| 4482358 | Granular bed filtering device Apparatus is disclosed for use in the removal of molten particles from a hot gas. The hot gas carrying the molten particles is passed through a granular bed comprising, in succession, a stack of larger and a stack of smaller solids. Gas exiting the stack ... | 11/13/1984 |
