| Patents for B01D 36 - Filter circuits or combinations of filters with other separating devices (7,816) |
|---|
| 11/12/1991 | CA1291953C Buoyant filter media |
| 10/30/1991 | CN2087530U Bilateral extra quality pressure filter |
| 10/23/1991 | EP0452435A1 Method and device for filtering of suspensions. |
| 10/22/1991 | US5059331 Solids-liquid separation |
| 10/17/1991 | WO1991015282A1 Filter |
| 10/17/1991 | DE4105605A1 Pre-clarification of waste water contg. faecal material |
| 10/16/1991 | EP0452181A1 Oil deaerator |
| 10/15/1991 | CA1290644C Fluid filter drain assembly |
| 10/03/1991 | WO1991014491A1 Oil de-aeration system |
| 10/02/1991 | DE4022315A1 Self-contained gravity filter - uses disposable filter material |
| 10/01/1991 | US5053140 Injecting gases in wastewater at bottom of tower; forming an overflowing of fat and impurities; poultry; countercurrent flow; reuse |
| 10/01/1991 | US5053120 Arrangement for draining water collecting in the container of a water separator of an internal-combustion engine |
| 10/01/1991 | CA1289893C Purification of oils containing solid matters in suspension |
| 09/25/1991 | CN2085252U Dual-speed waste water filtering tank |
| 09/24/1991 | US5051167 Apparatus for screening a suspension of fibrous cellulose material |
| 09/18/1991 | EP0446926A1 Apparatus for waste water clarification |
| 09/17/1991 | US5049267 Filter arrangement for a fuel tank comprising shaped mesh sections |
| 09/17/1991 | US5049263 Fluid strainer with blockage detection |
| 09/10/1991 | US5047157 Flexible tubular conduit; flushing port |
| 09/10/1991 | US5047123 Apparatus for clarifying liquids |
| 09/05/1991 | WO1991013030A1 Processing mixed waste |
| 09/05/1991 | WO1991012873A1 Filter for a fuel system |
| 09/05/1991 | WO1991012869A1 Two-chamber fluid/solids treatment vessel |
| 09/04/1991 | EP0444141A1 Dry cleaning solvent filtration and recovery system |
| 08/28/1991 | EP0193565B1 Apparatus for clarification of water |
| 08/27/1991 | CA1288059C Method and system for cleansing a filter bed |
| 08/22/1991 | DE4021350A1 Paper sorting sieve - consists of drum on horizontal axis to divide the tank into two chambers |
| 08/21/1991 | EP0442697A2 Method and apparatus for removing liquid from thickeners, filters, washers and corresponding devices |
| 08/21/1991 | EP0175702B1 Improvement to vacuum rotary filters with horizontal filtration plane |
| 08/14/1991 | EP0440679A1 Filter for removing hydrophobic substances from electrophoretic enamel coatings |
| 08/14/1991 | CA2036096A1 Method and apparatus for removing liquid from thickeners, filters, washers and corresponding devices |
| 08/07/1991 | EP0439901A1 Oil filter |
| 08/02/1991 | CA2026860A1 Oil filter |
| 07/30/1991 | US5035811 Filter pump system |
| 07/30/1991 | US5035799 Filter assembly |
| 07/25/1991 | WO1991010493A1 Multi-function filter cartridge with flow distribution control |
| 07/24/1991 | EP0438283A1 Oil filter |
| 07/23/1991 | US5034127 Filter assembly for purifying brine |
| 07/19/1991 | CA2034245A1 Oil filter |
| 07/16/1991 | US5032261 Compact biofilter for drinking water treatment |
| 07/04/1991 | DE4013080C1 Cleaning particulate filter bed - using appts. having vertical tube with filter chamber and inlet |
| 07/04/1991 | DE3943416A1 De-watering very dilute materials e.g. liquid manure etc. - by agglomeration and sedimentation while liq. flows in thin layer over suitable surface and is then filtered using porous rubber membrane |
| 07/03/1991 | EP0434671A1 Liquid separator |
| 07/03/1991 | CN2079993U Three-circle water purifier |
| 06/26/1991 | EP0434406A2 Trickle filtration apparatus |
| 06/26/1991 | EP0433664A1 Liquid filter |
| 06/26/1991 | EP0433587A2 Screen changer apparatus with cylindrical screens |
| 06/19/1991 | EP0432276A1 Method of concentrating and dehydrating slurried sludge |
| 06/13/1991 | WO1991008174A1 Processing plant for i.a. sanitary slaughtering |
| 06/11/1991 | CA1284757C Produce hydration system |
| 05/29/1991 | EP0428711A1 Method and apparatus for clarifying liquids |
| 05/29/1991 | CN2077745U Cyclone filter |
| 05/22/1991 | CN2077325U Gas-liquid separating tower for vacuum oil purifier |
| 05/21/1991 | US5017285 Fuel filter and cartridge assembly |
| 05/07/1991 | US5013882 Labyrinth filter for dielectric of spark erosion systems |
| 05/07/1991 | US5013432 Filter system for liquids with particles in suspension |
| 05/07/1991 | US5013415 Liquid purification system |
| 05/02/1991 | EP0424486A1 Filter for continuous filtration |
| 05/01/1991 | WO1991006703A1 Pulseless screen |
| 04/24/1991 | EP0423609A1 Stack of filters for fitting in a cross flow fluid filter device |
| 04/23/1991 | US5009774 Pulseless screen |
| 04/23/1991 | US5009758 Closed noncontinuous electrodeposition painting system |
| 04/18/1991 | WO1991004778A1 Method and device for filtering of suspensions |
| 04/09/1991 | US5006251 First step of upward flow solid-liquid separator; non-clogging |
| 04/09/1991 | US5006240 Water-treatment system |
| 04/03/1991 | EP0419590A1 An apparatus for dewatering and squeezing material |
| 04/03/1991 | CN2074202U Filtering device for exhaust fume |
| 03/27/1991 | EP0419030A2 Fuel filter with positive water shutoff |
| 03/21/1991 | WO1991003301A1 Fuel filter |
| 03/13/1991 | EP0416146A1 Device for the separation of solid particles and fluids with an elevated density from fluids having a lower density |
| 03/13/1991 | EP0375739A4 Water clarification system adapted for removing particulate matter of greater than a predetermined size |
| 03/13/1991 | CN2072863U Miniature water cleaner |
| 03/13/1991 | CN2072860U Movable filtering machine with double purpose |
| 03/12/1991 | US4999115 Treating waste from coal processing, flocculation, clarification |
| 03/12/1991 | US4999108 Having embedded wire which conducts away charge taken from liquid to be filtered |
| 03/06/1991 | EP0414879A1 Filter for continuous filtration. |
| 03/06/1991 | CN2072428U Waste water recovery saving device |
| 03/05/1991 | US4997556 Oil filter I |
| 03/05/1991 | US4997555 Fuel filter assembly with heater |
| 02/27/1991 | CN2071978U Multifunctional mini oil purifier |
| 02/21/1991 | WO1991001944A1 Process and apparatus for recycling food processing water |
| 02/19/1991 | US4994332 Continuous removal of precipitate |
| 02/15/1991 | EP0434671A4 Liquid separator. |
| 02/13/1991 | EP0412210A1 Decanter prefilter for diesel engine fuel |
| 02/12/1991 | US4992641 Apparatus for preparing a machining liquid of an electroerosion machine |
| 02/06/1991 | EP0411939A1 Liquid waste separator |
| 02/06/1991 | EP0410961A1 A method and an apparatus for separating solid particles from a liquid. |
| 02/06/1991 | CN1011485B Method and device for purifying oil |
| 01/29/1991 | US4988448 Method for removing substances from a solution |
| 01/23/1991 | CN1048663A Multifunctional continuous pressure filter for fluid with high efficiency |
| 01/22/1991 | US4986910 Apparatus for dehydrating sludge |
| 01/15/1991 | US4985152 Process for separating solvents used in the purification of products |
| 01/15/1991 | US4985146 Filtering system |
| 01/07/1991 | WO1991000768A1 Method and apparatus for treating fiber suspension |
| 01/04/1991 | WO1991000249A1 Method of concentrating and dehydrating slurried sludge |
| 01/02/1991 | EP0405447A2 Fuel filter |
| 12/27/1990 | WO1990015655A1 Filter for continuous filtration |
| 12/27/1990 | EP0404573A2 Water dispenser |
| 12/27/1990 | EP0404276A1 Mixer reactor |
| 12/27/1990 | EP0404160A1 Centrifugal separator for coagulable liquid, particularly Diesel fuel |