| 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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| 02/21/1989 | US4805525 Apparatus for filtering liquids |
| 02/14/1989 | US4804510 Filtering system for use in coextrusion apparatus and method of use |
| 02/14/1989 | US4804481 Helical spring apparatus and process for detaching filter cake |
| 02/14/1989 | US4804470 Paint strainer |
| 02/14/1989 | US4804466 Fluid filter with internal spacer |
| 02/14/1989 | US4804464 System for in situ upgrading of the purity of a liquid and flushing a filtration system |
| 02/14/1989 | CA1249972A1 Disc shaped filter element |
| 02/09/1989 | WO1989000881A1 Filter |
| 02/09/1989 | DE3725070A1 Sludge vessel |
| 02/08/1989 | EP0302448A2 Purifying process for solvents and apparatus for carrying out this process |
| 02/08/1989 | EP0302184A1 Rotary vacuum filter |
| 02/02/1989 | DE3812136A1 Process and apparatus for collecting rainwater |
| 02/01/1989 | EP0301180A1 Pressure filtration device |
| 02/01/1989 | EP0301154A1 Equipment for folding paper webs and the like |
| 01/31/1989 | USRE32851 Fluid filter |
| 01/31/1989 | US4801383 Selective twist filtration roving |
| 01/31/1989 | US4801382 Filter means with a segmental construction |
| 01/31/1989 | US4801377 Debris separator unit for raingutter downspouts |
| 01/31/1989 | US4801094 In a shower head |
| 01/26/1989 | DE3729250A1 Process and apparatus for dewatering a filter cake |
| 01/26/1989 | DE3723285A1 Closure flap for the dirt chamber of a belt filter unit having a filter belt which can be advanced stepwise |
| 01/25/1989 | EP0300182A1 Tubular filter element with a supporting tube externally coated with filtering material |
| 01/24/1989 | US4800020 Piston filtering device |
| 01/19/1989 | DE3722562A1 Annular filter body |
| 01/19/1989 | DE3722238A1 Verfahren zur abreinigung von filterkerzen in anschwemmfiltern und vorrichtung zur durchfuehrung des verfahrens Precoat method for cleaning system of filter candles in and apparatus for performing the method |
| 01/18/1989 | EP0299258A1 A high flow capacity barrier type screening apparatus and method therefor |
| 01/18/1989 | EP0299105A1 Pressure filter |
| 01/18/1989 | EP0299035A1 Filtering apparatus for contaminated fluids |
| 01/18/1989 | CN1030395A Method of and arrangement for purifying contaminated water |
| 01/17/1989 | US4798575 Method and apparatus for the manufacture of filters |
| 01/17/1989 | CA1248879A1 Filtering unit |
| 01/12/1989 | WO1989000289A1 Filtration unit, in particular for medical specimens |
| 01/12/1989 | WO1989000288A1 Filtration unit with pressure compensation |
| 01/12/1989 | WO1989000074A1 Two-stage batch filter apparatus and filtration process |
| 01/12/1989 | WO1989000073A1 Process and device for cleaning filter candles in precoated filters |
| 01/12/1989 | WO1989000072A1 Filtrate evacuation system |
| 01/12/1989 | DE3822485A1 Filter unit for purifying cutting fluids |
| 01/12/1989 | DE3744712A1 Container for bulk material |
| 01/12/1989 | DE3721436A1 Method for the production of a composite screen plate and a composite screen plate |
| 01/11/1989 | EP0298735A2 Filter |
| 01/11/1989 | EP0298513A1 Filter unit, particularly for medical samples |
| 01/11/1989 | EP0298512A1 Filter unit with pressure equalisation |
| 01/11/1989 | EP0298443A1 Method and apparatus for keeping a screen or filter surface clear |
| 01/11/1989 | EP0298146A1 Process and apparatus for separating liquid matter from a suspension containing a biocatalyst and/or supporting particles |
| 01/10/1989 | US4797211 Cross flow microfilter |
| 01/05/1989 | DE3830157A1 Cross-flow filter module for treating liquids and gases |
| 01/04/1989 | CN1030024A Parallel filtering circuit |
| 01/03/1989 | US4795570 Two-stage batch filter apparatus and filtration process |
| 01/03/1989 | US4795560 Screen plates |
| 01/03/1989 | US4795524 Apparatus for fixing cap on end of filter element |
| 12/29/1988 | WO1988010335A1 An apparatus for screening pulp and a method of screening a pulp suspension |
| 12/28/1988 | EP0296336A1 Dynamic pressure filter |
| 12/27/1988 | US4793928 Polymer filtering apparatus |
| 12/27/1988 | US4793922 Filter element using non-woven mat and multi finger separators |
| 12/27/1988 | US4793161 Pulp treating apparatus |
| 12/27/1988 | US4793051 Method for construction of crimp seal pleated filter assembly |
| 12/21/1988 | EP0295335A2 Parallel filtering circuit |
| 12/20/1988 | US4792398 Disposable liquid filter |
| 12/20/1988 | US4792397 Axial fluid filtration |
| 12/20/1988 | US4792394 For removing solids from a liquid flow stream |
| 12/20/1988 | US4791864 Drainage system for expressing fibrous materials |
| 12/15/1988 | DE3724805A1 Combined main flow filter and partial flow filter |
| 12/14/1988 | EP0295149A2 Filtering device |
| 12/14/1988 | CN88211388U Multihole lamination filter-head |
| 12/13/1988 | US4790942 Filtration method and apparatus |
| 12/13/1988 | US4790938 Filter for removing particulate matter from fluid within a movable body |
| 12/13/1988 | US4790935 Fluid filter |
| 12/13/1988 | US4790934 Apparatus for filtering fluid medium |
| 12/13/1988 | US4790933 Dynamic filtration unit and process of use |
| 12/13/1988 | CA1246465A1 Method of filtering and a device for filtering solid- containing liquids |
| 12/08/1988 | DE3725651C1 Band filter for cleansing liq. - includes upper chamber to hold dirty liq. filter band drive unit and cleansing chamber |
| 12/07/1988 | EP0294185A2 Filtering device |
| 12/07/1988 | EP0293515A2 Device for removing solids from liquid flowing in a sewer |
| 12/06/1988 | US4789474 Elongated cloth pockets around rigid plates; arranged vertically in vat |
| 12/06/1988 | US4789471 Pressure filters |
| 12/06/1988 | CA1245857A1 Molten metal filter and method of filtering |
| 12/01/1988 | WO1988009308A1 Method of and arrangement for purifying contaminated water |
| 12/01/1988 | DE3803761A1 Vorrichtung zur reinigung von fluessigkeiten Apparatus for purification of liquids |
| 12/01/1988 | DE3720994C1 Container of bulk materials as a dewatering container |
| 11/30/1988 | EP0292888A2 Separation process for solid particles of different size from viscous liquids |
| 11/29/1988 | US4787988 Vacuum manifold; separation of solids from fluids without contamination |
| 11/29/1988 | US4787987 Filter apparatus and method |
| 11/29/1988 | CA1245600A1 Medium consistency flat disk pressure screen |
| 11/29/1988 | CA1245568A1 Device for processing fluid with solid bodies |
| 11/24/1988 | DE3816434A1 Filter module of sheet filter elements |
| 11/23/1988 | EP0292446A2 Fuel feed device, particularly for internal combustion engines, comprising fuel filtering and emulsifying members |
| 11/23/1988 | EP0292329A2 Filtering device |
| 11/23/1988 | EP0291985A2 Filter exchange device for an extrusion molding machine |
| 11/23/1988 | EP0291883A2 Filter module with filtering layers |
| 11/23/1988 | EP0291538A1 Process and apparatus for the continuous filtration of liquids |
| 11/23/1988 | CN88102560A Dynamic filter apparatus and method |
| 11/23/1988 | CN88102165A Conical element for filtering and separation |
| 11/23/1988 | CN87105972A Device for purifying oil and water |
| 11/22/1988 | US4786420 Purifying the water supply in a household |
| 11/22/1988 | US4786408 Draining precoat liquid prior to feeding liquid |
| 11/17/1988 | WO1988008739A1 Filter plate |
| 11/16/1988 | CN88102183A Flat element for filtering and separation |
| 11/15/1988 | US4784766 Pressure crystallization equipment |
| 11/15/1988 | US4784169 Apparatus for treating articles with solution to remove solids and then filtering the solution |
| 11/15/1988 | CA1244612A1 Dirt filter for semifluid thermoplastic media |