| 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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| 06/04/1985 | US4521314 Method and device for filtering yeast and other plant cell material on rotary vacuum filter |
| 06/04/1985 | CA1188435A1 Method for naturally drying mineral pulps |
| 05/21/1985 | US4518499 Apparatus for fractionating solid particles suspended in a liquid |
| 05/07/1985 | US4515697 Method for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and zooplankton and for the purification of used water |
| 05/07/1985 | US4515691 Filter lumps of short organic and inorganic fibers |
| 05/02/1985 | EP0139002A1 Mobile fluid purification unit. |
| 04/24/1985 | EP0138188A2 Pressure filter |
| 04/23/1985 | US4512901 Solvent addition to deep bed filter |
| 04/03/1985 | EP0135822A2 Diffusor and methods of using the same |
| 04/03/1985 | EP0135627A1 Filtering system |
| 04/02/1985 | CA1184857A1 Method for eliminating solids from a liquid |
| 03/26/1985 | CA1184513A1 Liquid treatment apparatus |
| 03/19/1985 | CA1184131A1 Method and apparatus for separating suspended solids from liquids |
| 03/13/1985 | EP0133904A2 Method for controlling the operation of rapid gravity operated filters |
| 02/19/1985 | US4500435 Backwashing |
| 01/29/1985 | US4496464 Filter apparatus and method |
| 01/15/1985 | US4493767 Conveyor belt for transporting slag material from a filtering apparatus |
| 01/08/1985 | CA1180828A1 Solids separation and liquid clarification system |
| 01/01/1985 | US4491520 Filter for water jugs |
| 12/19/1984 | EP0128234A1 Sand filtration apparatus |
| 12/04/1984 | US4486307 Filter apparatus having filter bed back-washing means |
| 11/14/1984 | EP0124880A2 Method and apparatus for cleaning liquids |
| 11/14/1984 | EP0016806B1 Oil reconditioning filter |
| 11/13/1984 | US4482457 Filtering apparatus |
| 11/06/1984 | US4481114 Sludge dewatering system |
| 10/30/1984 | US4479880 Method and apparatus for deflecting granular material away from the outlet of a filtration bed |
| 10/25/1984 | WO1984004087A1 Mobile fluid purification unit |
| 10/23/1984 | US4478726 Particulate filter backwash outlet |
| 10/23/1984 | US4478716 Mixed-bed device for producing pure water |
| 10/16/1984 | US4477359 Process for fractionating solid particles suspended in a liquid, in particular for treating paper-industry fiber suspensions |
| 10/10/1984 | EP0121143A2 Method and apparatus for the filtration of liquids containing solid particles |
| 10/10/1984 | EP0120988A2 Back-washing filter assembly |
| 10/09/1984 | US4476020 Strainer assembly for granular media filters |
| 09/11/1984 | CA1174179A1 Modular filter system |
| 09/04/1984 | CA1173793A1 Method and device for separating the constitutents of a solution through a continuously declogged sieve by alternating pressure and vacuum |
| 09/04/1984 | CA1173761A1 Method and equipment for thickening of suspension or pulp |
| 08/07/1984 | US4464255 Water purification device |
| 07/24/1984 | US4461708 Fluidized bed of fine particles, and agglomerate fibers as fixing base for bacteria |
| 07/24/1984 | CA1171562A1 Apparatus and method for clarification of water using combined flotation and filtration processes |
| 07/24/1984 | CA1171364A1 Method of simultaneous air-water wash of multiple- media filters |
| 07/17/1984 | US4460467 Water purification device |
| 07/03/1984 | US4458059 Liquid filtration system |
| 07/03/1984 | US4457849 Pollution control |
| 06/12/1984 | US4454040 Filter |
| 06/12/1984 | US4454034 Filter apparatus |
| 06/12/1984 | US4454033 Filtering apparatus |
| 06/12/1984 | US4454032 Fast filtering apparatus |
| 06/05/1984 | US4452705 Filter device for the softening and/or complete desalination of a liquid, particularly water |
| 05/22/1984 | US4450077 Granular media filter |
| 05/15/1984 | US4448695 Multicellular grid packed with activated carbon |
| 05/02/1984 | EP0107353A2 Filter |
| 05/01/1984 | US4446027 Buoyant media filter |
| 04/17/1984 | US4443341 Filtration, polyurethanes, regeneration, purification |
| 04/17/1984 | CA1165698A1 Method of removing fine suspended solids from effluent stream |
| 04/11/1984 | EP0105225A2 Process for cleaning a filter for liquid materials and the separation device containing this filter |
| 04/10/1984 | US4441998 Water purification device |
| 04/10/1984 | US4441997 Liquid filtration system |
| 04/04/1984 | EP0104341A2 Process for the cleaning of backwashable filter beds that contain particles |
| 04/04/1984 | EP0104307A2 Large-surface rotating disc filter element in a tank |
| 04/04/1984 | EP0104263A2 Device for the fixation of drain pipes |
| 04/03/1984 | CA1164809A1 Rotary drum filter |
| 03/20/1984 | US4438000 Method of filtration using semifluidized beds |
| 03/14/1984 | EP0102767A2 Granular media filter |
| 03/06/1984 | US4435286 Liquid filter device |
| 02/28/1984 | US4434054 Filter for separating discrete solid elements from a fluid stream |
| 02/22/1984 | EP0100994A2 Method of filtration using semifluidized beds |
| 02/21/1984 | CA1162489A1 Drainage deck assembly for rotary vacuum drum filter |
| 02/15/1984 | EP0100345A1 Screen machine. |
| 01/31/1984 | US4428836 Hydraulic discharge system |
| 01/31/1984 | CA1161369A1 Filtration system with bi-flow filter |
| 01/24/1984 | US4427552 Method of automatically controlling a continuously operating pressure filter |
| 01/24/1984 | US4427551 Solids separation and liquid clarification system |
| 01/04/1984 | EP0097577A1 Apparatus for rapid filtration, especially for biological liquids |
| 12/27/1983 | US4422929 Wastewater treatment plant |
| 12/21/1983 | EP0096670A1 Apparatus for separating solid particles from a liquid |
| 12/13/1983 | US4420403 Filter module |
| 11/22/1983 | US4416780 Method to upgrade sewage treatment plants overloaded in continuous operation |
| 11/22/1983 | US4416777 Separation of leukocytes or lymphocytes from leukocyte-containing suspension |
| 11/22/1983 | US4416773 Valve mechanism for multiple distributor fluid treatment system |
| 11/08/1983 | US4414109 Multi-ported valve with sealing network between valve body and rotor |
| 11/01/1983 | US4412919 Water purification device |
| 09/15/1983 | WO1983003060A1 Method to spread a pulp for its natural drying |
| 09/14/1983 | EP0088697A1 Process for setting sludge in view of its natural drying |
| 08/30/1983 | CA1152901A1 Environmental filters |
| 08/24/1983 | EP0086642A2 Filtration method and apparatus |
| 08/23/1983 | US4400273 Pressure filter for liquid, in particular water |
| 08/18/1983 | WO1983002731A1 Screen machine |
| 08/17/1983 | EP0085878A1 Method for regulating a continuously working pressure filter |
| 08/17/1983 | EP0085779A1 Method and apparatus for continuously and counter-currently contacting liquid and solid media |
| 08/16/1983 | US4399034 Movable filter bed |
| 08/10/1983 | EP0085629A1 Process for the flocculation of suspended particles in a liquid and application to the recovery of vegetable microalgae and zoological plankton, and to the purification of waste water |
| 07/07/1983 | WO1983002294A1 Procedure for clarifying liquid suspensions, particularly those produced in processes of the wood-processing industry |
| 07/05/1983 | CA1149523A1 Water purifier |
| 06/29/1983 | EP0082520A2 Apparatus for separating suspended materials from pressurized fluids |
| 06/28/1983 | US4390427 Plate-type filter |
| 06/28/1983 | CA1148873A1 Multilayered filter medium of varying porosity between two support jackets |
| 06/21/1983 | US4388938 Filter cleaning apparatus |
| 06/21/1983 | CA1148675A1 Upflow reactor filter assembly |
| 05/31/1983 | US4385998 Removal of suspended solids from water |
| 05/31/1983 | CA1147274A2 Filtering apparatus for liquids |