Patents for B01D 24 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (8,047) |
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03/18/1998 | EP0828544A1 A device for filtration and a method for conversion |
03/18/1998 | CN2276365Y 过滤器 Filter |
03/18/1998 | CN1176633A Electrocoalescent system for decontaminating water streams |
03/18/1998 | CN1037749C Water purification device |
03/17/1998 | US5728303 Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization |
03/17/1998 | US5727908 Air lift pump for wet particulates |
03/11/1998 | CN2276019Y Ultrafiltration water purifier |
03/11/1998 | CN2275897Y 酸浴浮体过滤器 Acid bath float filter |
03/11/1998 | CN2275896Y Fully automatic siphon water supply filtering equipment |
03/11/1998 | CN1175556A Facilities for treating waste water on large scale |
03/10/1998 | US5725766 Sewage dewatering equipment |
03/05/1998 | WO1998008586A1 Fluidized bed filter |
03/05/1998 | DE19634792A1 Pond filter |
02/25/1998 | CN2275092Y Household water purifier |
02/24/1998 | US5720875 Waste treatment system having means for controlling filtered backwash |
02/19/1998 | WO1998006473A1 Device for continuous filtration of liquids |
02/19/1998 | DE19632447A1 Beseitigungsvorrichtung Removing device |
02/18/1998 | CN1173381A Liquid purifying unit |
02/11/1998 | EP0823276A1 Filter device with meshed insert |
02/09/1998 | CA2182934A1 Filtration bag |
02/06/1998 | CA2211221A1 Filter means with fabric insert |
02/05/1998 | WO1998004332A1 Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in flat bottom flumes |
02/04/1998 | CN2273613Y Fiber filtering apparatus for eddy washing |
02/04/1998 | CN1171975A Wooden filtering material water purification method and structure of filter element |
02/03/1998 | US5714077 Liquid filtration system |
01/27/1998 | US5711874 Ceramic grains |
01/27/1998 | CA2134749C A device for separation of solid particles from a liquid mixture |
01/21/1998 | EP0819100A1 Water filtration cartridge |
01/15/1998 | WO1998001205A1 Sealing shoe for celless traveling bridge filter |
01/15/1998 | DE19622727C1 Appts. for purifying rainwater |
01/14/1998 | EP0817666A1 Method of separating solids from liquids and/or separating emulsions |
01/14/1998 | EP0687194B1 Improved strainer |
01/14/1998 | CN1036975C Reverse washing method of water processing apparatus using floating filtering material |
01/13/1998 | US5707536 Multicompartment housings with caps and septums |
01/08/1998 | WO1998000219A1 Microcolumn for extraction of analytes from liquids |
01/07/1998 | EP0814908A1 Apparatus for purification of liquids |
01/07/1998 | EP0708676B1 Method and apparatus for thickening lime mud with a disc filter |
01/07/1998 | CN2271921Y 重力滤池 Gravity Filter |
01/07/1998 | CN2271920Y Water-mineralizing minifilter |
01/07/1998 | CN2271919Y 可调纤维密度过滤器 Adjustable fiber density filters |
01/06/1998 | US5705068 Feeding suspension to a disc filter |
12/31/1997 | CN2271401Y Mobile sewage purifying apparatus |
12/29/1997 | EP0813502A1 Electrocoalescent system for decontaminating water streams |
12/17/1997 | EP0695383A4 Post-treatment of nonwoven webs |
12/17/1997 | CN2270728Y Mercury sewage treatment pot |
12/17/1997 | CN2270549Y Filter separating device |
12/17/1997 | CN1167731A Apparatus for producing deoxygenized hot water for tyre plant |
12/16/1997 | US5698106 Countercurrent flow |
12/16/1997 | US5698097 Oil filter including replaceable primary and secondary flow filter elements |
12/11/1997 | WO1997046493A1 A method and a device for the purification of fluids |
12/10/1997 | CN2269888Y 污水净化器 Water purifier |
12/09/1997 | US5695638 Liquid filter |
11/27/1997 | WO1997044111A1 Radial-flow fluidizable filter |
11/26/1997 | EP0696227B1 Rotating filter |
11/26/1997 | CN2268566Y 净水器 Water Purifier |
11/19/1997 | EP0689521A4 Compact clarifier system for municipal waste water treatment |
11/12/1997 | EP0642373B1 Method and apparatus for separating gaseous bubbles and sand fro m a liquid flow |
11/12/1997 | CN1164433A Closed horizontal-flow type filter capable of automatically cleaning filtering layer and its filtering method |
11/06/1997 | WO1997040907A1 Fluid treatment media support system |
11/05/1997 | CN2266447Y Vortex gravity pouring float filtering device |
11/04/1997 | US5683583 Sewage dewatering equipment |
10/28/1997 | US5681472 Method and apparatus for separating gaseous bubbles and sand from a liquid flow |
10/28/1997 | US5681465 Filtration equipment with filtrate recovery process |
10/22/1997 | CN2265364Y Drinking-water purifying storage device |
10/22/1997 | CN2265230Y Vertical clamp-board type filter with fabric filter material |
10/22/1997 | CN2265229Y Filter for water treatment |
10/22/1997 | CN2265228Y high-effciency filter |
10/22/1997 | CN2265227Y High-effciency energy-saving filter pot |
10/22/1997 | CN1036176C Method for supplying a suspension to a filter and device therefor |
10/15/1997 | EP0776244A4 Lateral member assembly for underdrain lateral system |
10/15/1997 | EP0755292A4 Apparatus and method for improving gas backwash in lateral underdrains |
10/14/1997 | US5676847 Supplying crystals to rotary filter under pressure, filtering, washing filter cake, recycling washing liquid |
10/08/1997 | EP0799083A1 Method and device for purifying liquids, in particular polluted water for fighting fires |
10/08/1997 | CN2264174Y Filter with fibre density adjusted |
10/07/1997 | US5674383 Filter for the purification of water |
10/07/1997 | US5674380 Oil filter and filter blockage alarming system |
10/07/1997 | US5674117 Compression belt separation apparatus |
10/07/1997 | US5673481 Air grid for underdrains and similar systems |
10/01/1997 | EP0798026A1 Reaction vessel |
10/01/1997 | EP0798025A2 Filtering device |
09/24/1997 | EP0690739B1 Method for supplying a suspension to a filter and device therefor |
09/24/1997 | EP0651671B1 Air-liquid separator assembly and system |
09/17/1997 | CN2262449Y 连续砂滤器 Continuous sand filter |
09/17/1997 | CN2262448Y Carbon granule rod type melted sizing liquor filter |
09/16/1997 | US5667670 Wastewater effluent management system using a sand filter |
09/11/1997 | DE19608372A1 Water rises through drinking water filter insert expelling air bubbles |
09/10/1997 | EP0793988A2 Filter for a motorized sweeper and related machine |
09/10/1997 | EP0793750A1 Apparatus and process for screening a fibre suspension and process for producing paper utilizing the same |
09/10/1997 | EP0641239B1 Filtering apparatus |
09/10/1997 | CN1158750A Device for filtering, washing and drying solid material-liquid mixture |
09/09/1997 | US5665224 Filter jug |
09/03/1997 | CN2261285Y Aerated gas-water back-impacting filtering pool |
09/03/1997 | CN2261284Y High performance fiber cellless mechanical filter |
08/26/1997 | US5660733 Sewage dewatering process |
08/26/1997 | US5659973 Device and method for removing liquid on a gauze conveyor |
08/20/1997 | CN2259936Y Filtration apparatus with fiber packings |
08/20/1997 | CN2259935Y Siphon filtering tank for tap water |
08/19/1997 | US5658459 Dual velocity strainer |
08/14/1997 | WO1997028881A1 Pelletized composition for treatment of storm water runoff |
08/14/1997 | WO1997028877A1 Water purification cartridge assembly with unidirectional flow through filter media |