| Patents for B01D 33 - Filters with filtering elements which move during the filtering operation (10,149) |
|---|
| 02/14/1989 | CA1249972A1 Disc shaped filter element |
| 02/08/1989 | EP0302184A1 Rotary vacuum filter |
| 02/07/1989 | US4802964 Liquid separation process for suspensions by a pulsating electrical current |
| 02/07/1989 | US4802955 Dewatering band press side seals |
| 02/02/1989 | DE3724451A1 Method for separating off filterable substances from a liquid and apparatus for carrying out the same |
| 01/24/1989 | US4800020 Piston filtering device |
| 01/12/1989 | DE3822485A1 Filter unit for purifying cutting fluids |
| 01/12/1989 | DE3821453A1 Screening apparatus for separating off cellulose fibres from a suspension liquid stream and for introducing the particles into another liquid stream under superatmospheric pressure |
| 01/11/1989 | EP0298789A1 Device for the detection of flooding of sludges during dehydration on a filter with filtering bands |
| 01/11/1989 | EP0298146A1 Process and apparatus for separating liquid matter from a suspension containing a biocatalyst and/or supporting particles |
| 01/04/1989 | EP0297441A2 Inverted separation and transfer device, and process for using same |
| 01/04/1989 | EP0191102B1 Solid-liquid separating apparatus |
| 01/03/1989 | US4795572 Hermetic sealing in papermaking |
| 01/03/1989 | US4795558 Shower pipes for rotary drum filter |
| 12/29/1988 | WO1988010145A1 Arrangement at rotating filters for improved filtrate discharge |
| 12/29/1988 | WO1988010144A1 Rotating filter with outer filtrate conduits |
| 12/28/1988 | EP0297075A1 Filter bag for a filter section |
| 12/28/1988 | EP0297074A1 Disc sector for rotary disc filter |
| 12/28/1988 | EP0296336A1 Dynamic pressure filter |
| 12/28/1988 | EP0296284A1 Filter apparatus |
| 12/27/1988 | US4793161 Pulp treating apparatus |
| 12/21/1988 | EP0295339A2 Method and apparatus for separating liquid out of a substance containing liquid and solid material |
| 12/20/1988 | US4792406 Mixing with cationic amine salt |
| 12/14/1988 | EP0187795B1 Sector with variable thickness for a disc-type rotary filter |
| 12/13/1988 | US4790942 Filtration method and apparatus |
| 12/13/1988 | US4790934 Apparatus for filtering fluid medium |
| 12/01/1988 | DE3716707A1 Continuously operating melt-filter system for coextrusion systems |
| 11/30/1988 | EP0293350A2 Filter for concentrating suspensions |
| 11/29/1988 | US4787972 Two-stage filter apparatus |
| 11/29/1988 | US4787154 Suction filter-drier |
| 11/24/1988 | DE3715826A1 Continuous high-pressure filter press for dewatering sludge |
| 11/23/1988 | EP0292329A2 Filtering device |
| 11/23/1988 | EP0291574A2 Filter rake |
| 11/15/1988 | US4784335 Roller milling |
| 11/09/1988 | EP0289674A1 Multi-phase separator |
| 11/09/1988 | EP0289486A1 Filter. |
| 11/03/1988 | DE3712719A1 Process for the purification of waste waters contaminated by light materials, in particular saponifiable oils or fats |
| 11/01/1988 | US4781835 Arranged for rotation in suspension filled troughs with fewer seals; simplicity |
| 11/01/1988 | US4781823 Hopper with screen arranged rotatably about shaft to divide; water, oils and fats |
| 11/01/1988 | CA1243986A1 Apparatus for fractionating fiber suspensions |
| 10/26/1988 | EP0287579A1 Process for forming and dehumidifying filter cakes. |
| 10/20/1988 | WO1988007887A1 Method for the cleaning of the filter plates in a suction dryer |
| 10/19/1988 | EP0287408A1 Filter screens |
| 10/19/1988 | EP0287048A2 Filtration system |
| 10/19/1988 | EP0286714A1 Electroosmotic dewaterer |
| 10/18/1988 | US4778604 Method for reclaiming waste ink |
| 10/11/1988 | US4776957 Rotating element for a screening apparatus with a contour surface |
| 10/11/1988 | CA1243051A1 Device for confining a liquid phase between a wall and a rotating part passing through the latter |
| 10/11/1988 | CA1242915A1 Method and equipment for the washing of cellulosic pulp |
| 10/06/1988 | WO1988007402A1 Suction dryer |
| 10/04/1988 | US4775487 Rotating continuous separation system |
| 10/04/1988 | US4775472 Cake pressing system with angled belt rollers |
| 09/28/1988 | EP0284404A2 Filter disc |
| 09/28/1988 | EP0283870A1 Dewatering process for filter cakes, and apparatus for carrying out the process |
| 09/22/1988 | DE3707781A1 Apparatus for sludge dehydration |
| 09/21/1988 | EP0283381A1 Process for the purification and the valorization of hydrocarbon oil suspensions |
| 09/21/1988 | EP0283177A2 Filtering device |
| 09/20/1988 | US4772398 Method for treatment of waste water and its apparatus |
| 09/15/1988 | DE3732188C1 Trogfoermige Filterplatte fuer Drehdruckfilter Trogfoermige filter plate for rotary pressure filter |
| 09/14/1988 | CN87217526U Rotary gravity water-flushing water filter |
| 09/13/1988 | US4769986 Apparatus for washing cellulose with a rotary drum |
| 09/08/1988 | DE3706352A1 Process and apparatus for sieving marmalade |
| 09/07/1988 | WO1988006479A1 Arrangement for an inlet pipe in a rotating drum sieve |
| 09/07/1988 | EP0280851A1 Process for compressing pyrogenic silica |
| 09/06/1988 | US4769158 Molten metal filtration system using continuous media filter |
| 08/31/1988 | EP0280094A2 Filter segment for a filter for thickening a fibrous suspension |
| 08/24/1988 | EP0278952A1 Filter arrangement. |
| 08/23/1988 | US4765894 Disk screen for filtering machined chips from coolant; rotary shaft connection and receiving vessel |
| 08/18/1988 | DE3703606A1 Process for dewatering sludges |
| 08/16/1988 | CA1240764A1 Control system for a process |
| 08/16/1988 | CA1240621A1 Device for a rotary filter |
| 08/10/1988 | EP0277660A2 Filtration method and apparatus |
| 08/10/1988 | EP0277227A1 Pivot pin bearing/seal with loose eyelet especially suited for disposable continuous flow blood filtration system cartridges. |
| 08/09/1988 | US4761895 Method and apparatus for dehydrating sludge |
| 08/09/1988 | CA1240199A1 De-watering process |
| 08/03/1988 | EP0276546A1 Method and system for treating drill cuttings slurries and the like |
| 07/28/1988 | DE3736657A1 Process for dewatering sewage sludge and plant for carrying out the process |
| 07/26/1988 | US4759846 Backwashable filter |
| 07/07/1988 | DE3644275A1 Method for transferring filtered pulp on a disc filter and an associated disc filter arrangement |
| 07/05/1988 | US4755305 Continuous dewatering method |
| 07/05/1988 | US4755291 For treatment of liquid-containing waste |
| 06/30/1988 | WO1988004570A1 Filter for liquids |
| 06/21/1988 | US4752402 Settling pond separation using permeable fabric and weighting |
| 06/21/1988 | US4752390 Rotary vacuum filters with a horizontal filtration plane |
| 06/21/1988 | CA1238283A1 Rotatable disc filter |
| 06/16/1988 | DE3740577A1 Method for automatic dewatering control |
| 06/15/1988 | EP0270936A1 Method of removal of polycyclic aromatic hydrocarbons from a liquid |
| 06/15/1988 | CN87106068A Process for formation and drying of filtor cake |
| 06/14/1988 | US4750920 Single pass mud rejuvenation system and method |
| 06/14/1988 | US4750340 Apparatus for treating a fibre suspension |
| 06/08/1988 | EP0134226B1 Collector apparatus |
| 06/08/1988 | CN87108038A Dewatering device of quantitative discharge filter cake |
| 06/07/1988 | US4749479 Forcing slurry through polypropylene fabric |
| 05/31/1988 | US4747961 Method and system for treating drill cutting slurries and the like |
| 05/25/1988 | EP0268551A1 Mechanical separator for solid particles from waste waters |
| 05/24/1988 | US4746444 Prevention of chip build-up in filtration equipment |
| 05/24/1988 | CA1237008A1 Pulp thickening utilizing stationary screens |
| 05/19/1988 | WO1988003433A1 Arrangement for an inlet and outlet in a rotating drum sieve |
| 05/19/1988 | DE3736534A1 Leaf of a disc filter sector |
| 05/19/1988 | DE3637425A1 Process and apparatus for dewatering sludge-like materials |