| Patents for B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor (33,527) |
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| 04/23/1992 | DE4033223A1 Foamer-type water purifier for e.g aquarium water - which mixes water drawn from pump with air and fed to sepn. chamber having downwardly sloping partition |
| 04/22/1992 | EP0481391A2 Backwash method and apparatus |
| 04/22/1992 | EP0481390A1 Backwash method and apparatus |
| 04/22/1992 | CN2102148U Cellular filting tube filter for water treatment |
| 04/22/1992 | CN2102147U Impeller screw roll automatic filter |
| 04/21/1992 | US5106506 Filter stack for insertion in a filter device |
| 04/21/1992 | US5106501 Multi-function filter cartridge with flow distribution control |
| 04/21/1992 | US5106500 Portable water purification system including a filter cleaning mechanism |
| 04/21/1992 | CA1298949C Filtering device for thermoplastic material |
| 04/20/1992 | WO1992006762A1 Filters |
| 04/20/1992 | CA2093209A1 Filters |
| 04/17/1992 | CA2037888A1 Backwash method and apparatus |
| 04/17/1992 | CA2037799A1 Backwash method and apparatus |
| 04/16/1992 | DE4031915A1 Cleaning of coolant-lubricants from wet-cutting machine tools - in automatically controlled filter belt with return to machine tool for reuse |
| 04/15/1992 | EP0480491A1 Method of treating waste liquids; plant and hollow filter member for using the same |
| 04/15/1992 | EP0480298A2 Filtration apparatus |
| 04/14/1992 | US5104538 Liquid strainer |
| 04/14/1992 | US5104534 Filter design |
| 04/14/1992 | US5104533 Filtration unit with pressure compensation |
| 04/14/1992 | US5103871 One-end closed ceramic double tube and method of manufacturing the same |
| 04/14/1992 | CA1298795C Water filtering system |
| 04/08/1992 | EP0479077A1 Pressure filter with continuous cleaning of the filter surfaces |
| 04/08/1992 | EP0478596A1 Process for the preparation of samples for chemical analysis of liquids by infrared spectroscopy of dry extract and devices for this purpose. |
| 04/08/1992 | CN2100934U Drinking water purifier |
| 04/08/1992 | CN2100933U Candle type fitter machine |
| 04/08/1992 | CN2100932U Filter machine for wines or drinks |
| 04/07/1992 | US5102545 Pleated, sealed with end caps |
| 04/07/1992 | US5102541 Supporting tube construction for filter modules |
| 04/07/1992 | US5102539 Method of producing a membrane and a membrane for microfiltration, ultrafiltration, pervaporation or reverse osmosis of suspensions, emulsions and for gas separation |
| 04/07/1992 | US5102534 Automatic filter cleaning device by ultrasound generator modulated thru device side wall |
| 04/05/1992 | CA2052614A1 Method and apparatus for filtering dry cleaning solvent |
| 04/02/1992 | DE4128331A1 Purificn. of soils contaminated with hydrocarbon(s) - by crushing, predrying, solvent extn. and post-drying |
| 04/02/1992 | DE4030304A1 Filter zum filtern von gasfoermigen und fluessigen medien Filters for filtering of houses on gaseous and liquid media |
| 04/01/1992 | EP0477196A1 Filter and process for manufacturing filters using material cured by ultraviolet radiation for end caps. |
| 04/01/1992 | CN2100248U Tubular filter for polymer melt |
| 04/01/1992 | CN1059960A 阀门 Valve |
| 03/31/1992 | US5100551 Segmented filter disc with slotted support and drainage plate |
| 03/31/1992 | US5100550 Filter nozzle with annular filter discs |
| 03/31/1992 | US5100541 In-line debris trap for swimming pool filtration system |
| 03/31/1992 | US5100540 Water saving system |
| 03/31/1992 | US5100444 Hollow body, in particular a pipe segment or a cylindrical body |
| 03/31/1992 | CA1298069C Separating device comprised of modular components assembled in ceramic base plates |
| 03/26/1992 | WO1992004960A1 Filter for filtering gaseous and liquid media |
| 03/26/1992 | DE4030084A1 Cleaning fluid filters by low pressure filtrate reverse flow - using turntable mounted rinser rotated by drive unit and drawing filtrate from inlet |
| 03/25/1992 | EP0476546A1 Multi-way valve |
| 03/24/1992 | US5098583 Wet classification of kaolin, dewatering, filtration by flowing through a filter plate |
| 03/24/1992 | US5098565 Filter apparatus |
| 03/19/1992 | WO1992004099A1 Method of washing an upflow filter and filter bed employed in said filter |
| 03/19/1992 | DE4105210C1 Cross-flow micro-filter for particle concn. in suspension - is cyclically backflushed to prevent passage of small particles through funnel-shaped pores |
| 03/18/1992 | EP0475708A1 Depth filter media |
| 03/18/1992 | EP0475610A1 Fuel tank filter |
| 03/18/1992 | EP0475338A1 Apparatus to separate gaseous substances from a liquid |
| 03/18/1992 | EP0284620B1 Device for detection, analysis, identification and characterization by filtration and immunofiltration |
| 03/18/1992 | CN2098960U Filter with stacked tooth-shaped lamination |
| 03/18/1992 | CN2098959U Filter of basket chamber type |
| 03/17/1992 | US5096575 Disposable filter unit |
| 03/17/1992 | US5096127 Apparatus for pressurized screening of a fibrous material liquid suspension |
| 03/17/1992 | US5095740 System for monitoring and analyzing solid contaminents in fluids |
| 03/17/1992 | CA1297425C Apparatus for filtering fluid medium |
| 03/11/1992 | EP0474365A1 Filter cleaning |
| 03/11/1992 | EP0473975A2 Scraper filter system |
| 03/11/1992 | EP0473841A1 Filling funnel |
| 03/11/1992 | EP0253899B1 Periodic action device for filtration of liquid medium |
| 03/11/1992 | CN2098321U Drinking water treating unit |
| 03/11/1992 | CA2050991A1 Procedure for cleaning filter |
| 03/10/1992 | US5094751 Self-cleaning filter assembly |
| 03/10/1992 | US5094360 Screen basket |
| 03/06/1992 | WO1992004094A2 Apparatus for separating liquids and solids |
| 03/06/1992 | CA2072991A1 Apparatus for separating liquids and solids |
| 03/05/1992 | WO1992003208A1 Industrial filtration apparatus and method for the separation of solids from a fluid stream |
| 03/05/1992 | DE4021085C1 Reversible flow filter for coarse contamination - has concave screen element with backwashing rotor below, which operates in cooling waterline |
| 03/04/1992 | EP0473354A1 Apparatus for pressurised screening of a fibrous material liquid suspension |
| 03/04/1992 | CN2097678U Paper filter |
| 03/03/1992 | US5093000 Filtration apparatus |
| 03/03/1992 | US5092999 Filtering means |
| 03/03/1992 | US5092994 Membrane filter system |
| 03/03/1992 | US5092990 Filter device |
| 03/03/1992 | US5092351 Multi-layer filter cartridge |
| 03/01/1992 | WO1992004095A1 Filter apparatus for machine tool coolant |
| 02/25/1992 | US5091129 Polymerizing polyethylene with granular elements |
| 02/25/1992 | US5091082 Apparatus for diverting fluid-entrained solids around a centrifugal pump |
| 02/25/1992 | US5090887 Sieve arrangement for cleaning synthetic plastic melts |
| 02/25/1992 | US5090721 Process for manufacturing a screen basket and screen basket made by this process |
| 02/25/1992 | CA1296262C Filtering method and apparatus |
| 02/20/1992 | WO1992002649A1 Liquid metal filter |
| 02/20/1992 | DE4036551A1 Vehicle engine spin-on-filter - comprises cellulose and/or glass fibre, wool, propylene], etc., bound with plastic to form pores converging in flow direction |
| 02/20/1992 | DE4036191A1 Safe disposal spin-on oil filter for IC engine - has loosely fitted filtered cartridge on mandrel, with polygonal end with screw connector to press filtered housing and top plate together |
| 02/20/1992 | DE4025827A1 Filter for oil suction unit preventing tank sludge entry - has edged, rounded or profiled sheet, plastics, wire or tube shapes arranged in longitudinal or flow direction on suction devices |
| 02/19/1992 | EP0471420A2 Filter device |
| 02/19/1992 | EP0471195A1 Screen plates and methods of manufacture |
| 02/19/1992 | CN2096402U Polypropylene reinforced vacuum absorption straining flat |
| 02/18/1992 | US5089202 Method for the production of a filter cartridge |
| 02/18/1992 | US5089143 Method of filtering industrial liquids and apparatus therefor |
| 02/18/1992 | US5089134 Silica glass filter |
| 02/18/1992 | US5089132 Filter assembly |
| 02/18/1992 | US5089131 Corrosion resistant filter unit |
| 02/18/1992 | US5089108 Strainer |
| 02/18/1992 | US5088554 Sintered metal sand screen |
| 02/12/1992 | EP0470894A1 Device with tube bundle mounted on a calander, both having a different expansion coefficient |
| 02/12/1992 | EP0470485A2 A filter |