| Patents for B01D 25 - Filters formed by clamping together several filtering elements or parts of such elements (5,131) |
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| 12/13/1988 | CA1246465A1 Method of filtering and a device for filtering solid- containing liquids |
| 12/06/1988 | US4789471 Pressure filters |
| 11/30/1988 | CN88211130U Sundries collecting device from waste water |
| 11/24/1988 | DE3816434A1 Filter module of sheet filter elements |
| 11/23/1988 | EP0291883A2 Filter module with filtering layers |
| 11/17/1988 | DE3742363C1 Shunting appliance for filter plates |
| 11/09/1988 | EP0289740A1 Fluid flow spacing element |
| 11/09/1988 | CN88200832U Plate frame of filter press for separating solid and liquid |
| 11/03/1988 | DE3716461C1 Device on a filter press for opening the filter chambers |
| 11/03/1988 | DE3713419A1 Process and apparatus for drying a filter cake in a filter press |
| 11/01/1988 | US4781829 One-piece, plastic carrier plate; rotationally symmetrical transition surface |
| 11/01/1988 | US4781828 No seals between feed liquid chambers |
| 10/26/1988 | CN87204603U Filter for filting impurity in conducit pipe |
| 10/13/1988 | DE3817394A1 Apparatus for the transport and latching of the plates of filter presses |
| 10/11/1988 | US4776955 Press wall for a filter element of a filter press |
| 10/05/1988 | EP0284906A1 Chamber filter press |
| 10/04/1988 | CA1242654A1 Multiple-disc filter |
| 09/27/1988 | US4773996 Apparatus for dewatering primary dewatered sludge pieces |
| 09/22/1988 | WO1988006941A1 Process for manufacturing fine-structured bodies |
| 09/21/1988 | CN88200831U Filleted corner plate frame of filter press for separating solid and liquid |
| 09/21/1988 | CN87212880U Filter press with dewatering mesh-belt |
| 09/13/1988 | CA1241922A1 Washing apparatus for filter presses |
| 08/31/1988 | CN88101118A Filter assembly for filtering contaminated liquids |
| 08/23/1988 | US4765859 Method of making filtercloths by induction heating |
| 08/18/1988 | DE3703696A1 Chamber filter press |
| 08/16/1988 | US4764273 Filter press guide device |
| 08/11/1988 | DE3702489A1 Filter apparatus |
| 08/10/1988 | CN87215438U Automatically-unloading diaphragm for plate-frame-type press filter |
| 08/04/1988 | DE3702156A1 Filter apparatus for filtering contaminated liquids |
| 08/03/1988 | EP0276795A2 Filtering device for polluted liquids |
| 08/03/1988 | EP0276355A1 Filter press with a number of membrane filter plates |
| 07/28/1988 | WO1988005335A2 Filtering apparatus for contaminated fluids |
| 07/26/1988 | US4759892 Positioning protrusion member against honeycomb surface simultaneously vibrating and rotating until protrusions engage selected openings of honeycomb surface |
| 07/12/1988 | US4756817 Electrolytic cell frame for electrolysis |
| 06/22/1988 | CN87201676U Filter cloth for plate-frame type filter presses |
| 06/21/1988 | US4752516 Apparatus for high speed manifolding of honeycomb structures |
| 06/14/1988 | US4751000 Multiple-disc type filters |
| 06/07/1988 | US4749482 Membrane plate for plate filter presses |
| 06/02/1988 | WO1988003832A1 Apparatus for shifting filter plates in a filter press |
| 06/01/1988 | EP0268761A2 Liquid filter, especially for motor fuels |
| 05/26/1988 | DE3640171A1 Process and apparatus for the automatic draining of filter presses |
| 05/24/1988 | US4746429 Membrane filter plate with a carrier plate and sealing rim |
| 05/24/1988 | US4746428 Filter plate |
| 05/19/1988 | WO1988003432A1 Dry sump liquid filter |
| 05/19/1988 | WO1988003431A1 Liquid filter apparatus |
| 05/11/1988 | CN87201581U Filter press of component plate and frame type |
| 05/04/1988 | EP0266106A1 Method of assembling filter press type structure |
| 05/04/1988 | EP0265794A2 Control process for the closure pressure between plates in filter presses, and apparatus for carrying out the process |
| 05/03/1988 | US4741826 Filter cloth securing device for a plate filter press |
| 04/27/1988 | CN87214095U Plastic millipore core |
| 04/26/1988 | US4740413 Vulcanization, curing of ethylene-paopylene polymer to polyolefin substrate; filter plates |
| 04/26/1988 | US4740315 Drying, removal metal hydroxide powder |
| 04/19/1988 | US4738775 Paper extractor for plate filter |
| 04/13/1988 | EP0263197A1 Apparatus for removing water und for drying particles dispersed in liquids |
| 04/13/1988 | CN87206298U Continue press-filter of mechanical extruding |
| 04/12/1988 | US4737285 Non-leaking from filter unit |
| 04/05/1988 | USRE32635 Easy removal of cakes from filter cloths between plates |
| 03/31/1988 | DE3631851A1 Filter cloth of plastic fabric |
| 03/30/1988 | EP0261437A2 Plate type membrane module |
| 03/30/1988 | EP0248080A4 Filter cloth cake removal device. |
| 03/22/1988 | CA1234357A1 Filter machine |
| 03/16/1988 | CN87106060A Nonconventional type plate frame of filter press and its moulding process |
| 03/09/1988 | EP0258844A2 Filter press |
| 03/09/1988 | CN85106702B Filter cloth hanging apparatus for filter press |
| 03/02/1988 | CN85105830B Automatic filter press of squeeze type |
| 03/01/1988 | US4728426 Filter pack |
| 02/25/1988 | DE3622103A1 Scheiben - membran - pressfilter Washers - membrane - press filters |
| 02/24/1988 | EP0256501A2 Pressure responsive seamless diaphragm installation |
| 02/24/1988 | CN87206628U Filter press plate frame |
| 02/23/1988 | CA1233129A1 Pressure filters |
| 02/16/1988 | CA1232843A1 Cleaning device for filter press |
| 02/02/1988 | US4722789 Openable for simultaneous removal of filter cake |
| 01/28/1988 | WO1988000495A1 Method and means for pressure filtering |
| 01/27/1988 | CN87102894A Method and apparatus for filtering slurry |
| 01/26/1988 | US4721040 Seamless pressure responsive diaphragm installation |
| 01/20/1988 | EP0253620A2 Filter apparatus |
| 01/20/1988 | EP0253315A1 Filter press |
| 01/14/1988 | WO1988000082A1 Rotary disc filter |
| 01/13/1988 | CN87200209U Inflating board-frame filter pressor |
| 12/29/1987 | US4715955 Ultrafiltration apparatus |
| 12/29/1987 | US4715801 Apparatus for high speed manifolding of honeycomb structures |
| 12/29/1987 | US4715576 Apparatus for forming a flexible mask |
| 12/16/1987 | EP0249327A2 Filter Assembly |
| 12/15/1987 | CA1230258A1 Filter press for thickening cellulose pulp or sludge |
| 12/09/1987 | EP0248080A1 Filter cloth cake removal device |
| 12/02/1987 | EP0247445A1 Washing apparatus for filter cloths |
| 12/02/1987 | EP0247288A2 Filter press |
| 12/02/1987 | EP0247242A1 Plate filter press |
| 12/01/1987 | US4710402 Method of making filter paper |
| 12/01/1987 | US4710293 Filter cloth cake removal device |
| 11/19/1987 | EP0245490A1 Filter press for separating liquids from sludge to obtain a high solid content. |
| 11/17/1987 | US4707258 Fine filtration; backwash cleanable |
| 11/17/1987 | CA1229311A1 Filter press plate separation devices |
| 11/04/1987 | CN86102426A Filter press with pressing unit |
| 11/03/1987 | US4704207 Filter cartridge including external cell separators |
| 10/29/1987 | DE3613844A1 Plate filter press |
| 10/28/1987 | EP0243091A2 Method of and apparatus for filtering a slurry |
| 10/08/1987 | DE3611515A1 Filter press having spreading and retaining apparatus for filter cloths |
| 09/30/1987 | EP0238668A1 Filter press |
| 09/23/1987 | EP0237869A2 Filter press |