| Patents for B01D 33 - Filters with filtering elements which move during the filtering operation (10,149) |
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| 10/13/1987 | US4699716 Variable-thickness sector for a rotary disc-type filter |
| 10/08/1987 | WO1987005824A1 Rotating filter apparatus for separating fine particles of solids from a liquid |
| 10/08/1987 | WO1987005823A1 Adjustable ramp for dewatering device |
| 10/08/1987 | DE3706273A1 Filter apparatus |
| 10/06/1987 | US4698156 Stacks of sintered filter discs mounted on shaft |
| 10/06/1987 | US4697292 Shower pipes for rotary drum filter |
| 09/30/1987 | EP0239312A1 Method and apparatus for washing pulp |
| 09/29/1987 | US4696751 Vibratory screening apparatus and method for removing suspended solids from liquid |
| 09/23/1987 | EP0238335A2 Apparatus for plasmapheresis |
| 09/23/1987 | EP0237674A2 Filter for centrifuge tube |
| 09/22/1987 | US4695381 Filter for continuous filtering of a suspension under pressure |
| 09/22/1987 | US4695015 Improvements relating to belts of inter-woven spiral wires |
| 09/15/1987 | US4693879 Ultrasonic vibration sieving apparatus and process for purifying carbon black by using the apparatus |
| 09/15/1987 | US4693836 Filter apparatus with bypass prevention |
| 09/09/1987 | EP0235654A1 Process and apparatus to purify contaminated sulphur |
| 09/08/1987 | US4692248 Drum filter with resin bound particulate filter media |
| 09/08/1987 | US4692242 Screen comprising a travelling endless screening band |
| 08/27/1987 | DE3605384A1 Insert in a container for the collection of an embryo-containing rinsing liquid |
| 08/18/1987 | US4687583 Controlled continuous rotation to deposit lime sludge on drum, then detaching |
| 08/13/1987 | WO1987004640A1 Filter device |
| 08/12/1987 | EP0231877A2 Cleaning device for an endless belt |
| 08/11/1987 | US4686040 Disc filter element for a rotatable disc filter |
| 08/11/1987 | US4686005 Method of washing stock suspensions by removing undesired material through an endless revolving wire |
| 08/05/1987 | EP0230683A1 Basic sediment and water content measurement apparatus and method |
| 08/04/1987 | CA1225040A1 Method and apparatus for collecting and separating solids and/or insoluble liquids from a liquid body |
| 08/04/1987 | CA1225038A1 Apparatus and process for zeolite suspensions |
| 07/30/1987 | WO1987004474A1 Screen cylinder |
| 07/28/1987 | US4683059 Vacuum breaker valve-discharge elbow assembly for rotary drum filters |
| 07/28/1987 | US4683058 Insertable pressure filter |
| 07/21/1987 | US4681689 Wastewater treatment sludge |
| 07/21/1987 | US4681679 Filtering device for separating solids from liquids |
| 07/21/1987 | US4681659 Further dehydration of material |
| 07/21/1987 | CA1224346A1 Leak detection for bs and w apparatus |
| 07/16/1987 | WO1987004196A1 Filter |
| 07/16/1987 | DE3600492A1 Filter apparatus |
| 07/14/1987 | US4680115 Filtrate discharge accelerator system for center valve filter drums |
| 07/14/1987 | US4680104 Apparatus for dewatering clay filter cake |
| 07/14/1987 | CA1224079A1 Multi-nip high pressure press |
| 07/14/1987 | CA1224033A1 Filtering drum for a metallurgical slag filtering installation |
| 07/14/1987 | CA1224032A1 Filtering apparatus effecting uniform charging of a conveyer |
| 07/08/1987 | EP0228210A1 Filter unit |
| 07/07/1987 | US4678575 Rotatable filter disc assembly |
| 07/07/1987 | US4678574 Disc filter |
| 07/02/1987 | WO1987003823A1 Device for filtration of fluid medium |
| 07/02/1987 | WO1987003821A1 Device for filtration of fluid medium |
| 07/02/1987 | DE3546133A1 Process and appliance for washing and/or filtering and/or screening a slurried mineral mixture having various screen sizes in a rotary, perforated drum |
| 06/30/1987 | US4676903 Screening apparatus |
| 06/30/1987 | US4676902 Separation apparatus including relatively movable presser module and filtration belts |
| 06/30/1987 | US4676901 Rotating disc filter |
| 06/30/1987 | US4676893 Water jets forming single liquid stream into channel trough |
| 06/24/1987 | EP0225906A1 Improvements in filters. |
| 06/23/1987 | US4675110 Filter device and apparatus with multiple gas return passages |
| 06/23/1987 | US4675107 For separating slurries |
| 06/23/1987 | CA1223217A1 Filter bag with integral agitator |
| 06/23/1987 | CA1223216A1 Drum filter assembly for extracting filtrate from a fiber suspension |
| 06/19/1987 | DE3544352A1 Drum cell filter |
| 06/16/1987 | US4673514 Air cushion |
| 06/16/1987 | US4673502 Fixed filter drum and movable scraper |
| 06/16/1987 | US4673496 Drum filter take-off |
| 06/16/1987 | EP0185736A4 Apparatus for dewatering clay filter cake. |
| 06/16/1987 | CA1222899A1 Continuous counterflow belt washer |
| 06/10/1987 | EP0225204A1 Extractor for substances containing a liquid, and relevant extraction method |
| 06/10/1987 | EP0225017A1 Filter Apparatus |
| 06/09/1987 | US4671876 Belt filter device with pivotal suction casing |
| 06/09/1987 | US4671874 Electrokinetics; sludges, landfill operations |
| 06/04/1987 | DE3542331A1 Filter apparatus for liquids |
| 06/03/1987 | EP0223893A1 Self-cleaning filter and raked bar screen for canals and industrial applications |
| 06/02/1987 | US4670143 Horizontal drum filter having a drive wheel and interfitting tube sections |
| 06/02/1987 | US4670099 Method and apparatus for washing a mat of pulp stock on a drum filter |
| 05/21/1987 | DE3539419A1 Filter apparatus |
| 05/20/1987 | EP0221991A1 A device for collecting and discharging solid particles carried by flowing water. |
| 05/19/1987 | US4666602 Manure separator |
| 05/13/1987 | EP0221565A2 An apparatus for separation of solid from liquid |
| 05/12/1987 | US4664813 Pollution control |
| 05/12/1987 | US4664749 Method of washing cellulosic pulp submerged in washing liquid |
| 05/12/1987 | US4664391 Apparatus for retaining a liquid phase, between a wall and a rotary member passing therethrough |
| 05/07/1987 | WO1987002595A1 Means for purifying water and use of the means |
| 05/05/1987 | US4663040 Rotary drum filter grid extension and method |
| 04/30/1987 | DE3631968A1 Device for a rotary drive for filter sieves in horizontal sieve filters |
| 04/28/1987 | US4661252 Semi-submergeable for industrial waste recovery |
| 04/28/1987 | US4661251 Continuous loop filter sheets; solids from liquids |
| 04/23/1987 | WO1987002266A1 Filter arrangement |
| 04/21/1987 | US4659469 Tightness device between the conveyor belt and the collecting box with one or more compartments of a vacuum belt filter |
| 04/21/1987 | CA1220616A1 Methods of and apparatus for recovering a constituent of a process effluent |
| 04/14/1987 | US4657682 Method for dehydrating sludge |
| 04/09/1987 | DE3535714A1 Process and apparatus for thickening sludge |
| 04/08/1987 | EP0160069B1 Rotatable disc filter |
| 04/07/1987 | US4655937 Blocking spray rinse |
| 04/07/1987 | US4655920 Rotating disc filter |
| 04/01/1987 | EP0216011A2 A method of and apparatus for drying slurry |
| 03/31/1987 | US4653648 Disk screen or like shaft assemblies and method of making the same |
| 03/25/1987 | EP0215653A2 Filtration apparatus control |
| 03/24/1987 | CA1219530A1 Rotatable filter assembly |
| 03/17/1987 | US4650582 Apparatus for consistency control of manufactured tomato pulp |
| 03/12/1987 | DE3530583A1 Disc filter for separating suspensions |
| 03/10/1987 | US4648970 Easy removal of filter cakes |
| 03/03/1987 | US4647376 Microporous membrane, tangential flow |
| 03/03/1987 | US4647375 Rotation, filters, baskets, regeneration, coagulation, backwashing, conduits |
| 03/03/1987 | CA1218549A1 Flow distributer |
| 02/26/1987 | DE3529755A1 Dewatering process for sludge |