| Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157) |
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| 06/05/2001 | US6241102 Screening device |
| 05/29/2001 | US6238523 Decontamination apparatus |
| 05/29/2001 | CA2160571C Screening means with a screening body, and method and device for manufacturing the screening body |
| 05/29/2001 | CA2113450C Method and apparatus for separating gas from a gaseous material |
| 05/29/2001 | CA2096438C Hydrocyclone plant |
| 05/23/2001 | EP1100992A1 Method and device for sorting paper mixtures |
| 05/16/2001 | CN1295151A Method and apparatus for de-aeration of pulp suspension |
| 05/09/2001 | EP0813630B1 Fractionator |
| 05/03/2001 | DE19952129A1 Verfahren und Vorrichtung zur Entgasung einer Papierstoffsuspension Method and apparatus for degassing a paper stock suspension |
| 05/03/2001 | DE19951711A1 Verfahren und Vorrichtung zum Fraktionieren einer papierfaserhaltigen Suspension Method and apparatus for fractionating a paper fiber-containing suspension |
| 05/02/2001 | EP1096063A1 Method and device for fractionating a paper fibre suspension |
| 05/02/2001 | EP1095686A1 Process and equipment to ventilate a paper stock suspension |
| 04/29/2001 | CA2324751A1 Process and device for degassing a paper stock suspension |
| 04/27/2001 | CA2324338A1 Process and device for fractioning a suspension containing paper fibers |
| 04/26/2001 | WO2001029297A1 A method of fibre separation |
| 04/25/2001 | CN2427551Y Vortex flow type dregs removing from paper pulp |
| 04/17/2001 | US6216877 Screen panel and method of its manufacture |
| 04/12/2001 | DE19947905A1 Vorrichtung zum Engasen von Faserstoffsuspensionen Apparatus for Engasen of fiber suspensions |
| 04/11/2001 | EP1091040A2 Device for degassing fibrous suspensions |
| 04/11/2001 | CN1064420C Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 04/05/2001 | DE19946575A1 Assembly for the separation of gas from a fiber suspension has a main and a secondary dividing wall in the container with underpressure to recirculate the suspension and direct gas-free suspension into a dwell zone |
| 04/04/2001 | EP1087845A1 Screen cylinder with high percent open area |
| 03/28/2001 | EP1087055A1 Hydrocyclone plant |
| 03/28/2001 | EP1086270A1 Screen cylinder stress concentration relief |
| 03/28/2001 | EP0836658B1 Sealing device |
| 03/27/2001 | US6206204 Screen apparatus |
| 03/21/2001 | EP1084293A1 Screen device comprising two screen chambers for separating fibre suspensions |
| 03/15/2001 | WO2001017638A2 Constant arc contour hydrocyclone cleaner |
| 03/14/2001 | EP1082488A1 Screen media and a screening passage therefor |
| 03/07/2001 | EP1080265A1 Method and device for flotation of pollutants from an aqueous fibrous material suspension |
| 03/07/2001 | EP1080263A1 Apparatus for degassing an aqueous suspension containing pulp fibres |
| 03/01/2001 | WO2001014633A1 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus |
| 03/01/2001 | CA2383417A1 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus |
| 02/28/2001 | EP1078670A1 Device and process for degasing a liquid or pasty medium in an apparatus for producing and/or finishing a material web, especially of paper or cardboard |
| 02/28/2001 | EP1078125A1 Device for sorting a suspension containing fibrous material |
| 02/27/2001 | US6193073 Paper stock screening apparatus and method |
| 02/22/2001 | DE19939275A1 Vorrichtung und Verfahren zum Entgasen eines flüssigen oder pastösen Mediums in einer Maschine zum Herstellen und/oder Veredeln einer Materialbahn, insbesondere aus Papier oder Karton Device and method for degassing a liquid or pasty medium in a machine for producing and / or finishing a material web, in particular of paper or board |
| 02/21/2001 | EP1076735A1 Method and apparatus for treatment of fiber suspension containing minerals, such as coated broke, in paper production |
| 02/21/2001 | EP1076734A1 Screening device |
| 02/14/2001 | EP1075332A1 Through-flow hydrocyclone and three-way cleaner |
| 02/13/2001 | US6186333 Method and arrangement for controlling a multi-phase screening apparatus |
| 02/07/2001 | EP1073787A1 A cylindrical screen and a method of manufacturing it |
| 02/01/2001 | WO2001007872A2 Pressure screening device |
| 01/31/2001 | EP1071844A1 A process and apparatus for the production of cellulose pulps of improved quality |
| 01/31/2001 | EP1071843A1 Method of making screen cylinder, and screen cylinder |
| 01/31/2001 | EP0868564B1 Screening arrangement |
| 01/30/2001 | CA2234238C Cleaner with inverted hydrocyclone |
| 01/24/2001 | EP1070377A1 Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof |
| 01/24/2001 | EP1070168A1 Pressure screen with scrap separation |
| 01/18/2001 | DE19930088A1 Verfahren zum Entfernen von Störstoffen aus einer Flüssigkeit in einer Strömungsvorrichtung sowie Hydrozyklon zur Durchführung des Verfahrens A method for removing contaminants from a liquid in a flow apparatus and hydrocyclone for carrying out the method |
| 01/17/2001 | EP1069234A1 Method and device for removing impurities from a hydrocyclone |
| 01/16/2001 | US6174410 Process apparatus for recovering raw materials from paper mill effluents |
| 01/10/2001 | CN1279314A Method for producing lignin-removed papermaking fibers from waste paper containing high content of lignin |
| 01/09/2001 | US6171448 Apparatus for screening waste paper pulp |
| 01/09/2001 | US6170769 Screening apparatus with reject flow restriction means |
| 01/03/2001 | EP1065310A1 Hydrocyclone for removing impurities from a liquid |
| 01/03/2001 | CN1278744A Composite screen |
| 01/02/2001 | CA2082269C Hydrocyclone plant |
| 12/27/2000 | CN1278311A Method for making scren cylinder, and screen cylinder |
| 12/26/2000 | US6165370 Pressure screen monitoring apparatus and method |
| 12/26/2000 | US6165323 Screen plate having a plurality of inclined slots in a digester |
| 12/19/2000 | CA2069866C Apparatus for filtering liquids |
| 12/14/2000 | WO2000075422A1 Method and apparatus for preparing paper pulp from used paper |
| 12/14/2000 | WO2000074812A1 Degassing centrifugal apparatus, process for pumping and degassing a fluid and process for producing paper or board |
| 12/14/2000 | WO2000074811A1 Degassing centrifugal apparatus with energy recovery, process for degassing a fluid and process for producing paper or board |
| 12/07/2000 | WO2000073579A1 Screen cylinder for a screw press |
| 12/06/2000 | EP1057927A1 Screen cylinder, especially for paper pulp |
| 12/06/2000 | EP1057511A1 Screening device |
| 12/06/2000 | EP1056904A2 Solid bowl centrifuge for mixtures, especially for fibrous material suspensions used in the paper industry |
| 12/05/2000 | US6155427 Zoned pressure screen |
| 12/05/2000 | CA2122608C Liquid reservoir |
| 11/30/2000 | WO2000071810A1 Method and device for sorting paper mixtures |
| 11/30/2000 | CA2338553A1 Process and apparatus for sorting a mixture of paper |
| 11/29/2000 | EP1001855A4 Paper stock screening apparatus and method |
| 11/21/2000 | US6149015 Screen apparatus for papermaking material |
| 11/14/2000 | CA2082268C Hydrocyclone assembly |
| 11/02/2000 | WO2000065151A1 Edge wire contour with enhanced functionality |
| 11/02/2000 | WO2000064600A1 Improved torque transmission for slotted screen cylinders |
| 11/02/2000 | WO2000050695A8 Method in connection with the production of paper or cardboard |
| 11/02/2000 | EP0637348B2 Apparatus for treating fiber suspension |
| 11/01/2000 | CN1271794A Screen device |
| 10/31/2000 | US6139685 Method and device for treating a pulp suspension |
| 10/31/2000 | US6139684 Method and apparatus for decontaminating liquid suspensions |
| 10/31/2000 | US6139606 For degassing gas-containing fluid media in a container with the apparatus including a centrifugal pump for pumping the gas-containing fluid medium from the container, an ejector including a suction side, an ejector inlet for a drive fluid |
| 10/31/2000 | US6138838 Screen media and a screening passage therefore |
| 10/31/2000 | US6138836 Blade arrangement for pulp screening apparatus |
| 10/31/2000 | CA2151431C Feeding suspension to a disc filter |
| 10/31/2000 | CA2117055C Process for separating gaseous components from pourable media and device and installation therefor |
| 10/25/2000 | EP1046745A2 Screen apparatus for paper making |
| 10/24/2000 | CA2093260C Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 10/19/2000 | WO2000061861A1 Screening apparatus with slotring moveable in axial direction |
| 10/18/2000 | EP1044048A1 Composite screen |
| 10/17/2000 | US6131743 Screen basket for fiber suspensions and method for the production thereof |
| 10/17/2000 | US6131742 Device for separating contaminants from fibre pulp suspensions |
| 10/17/2000 | CA2213475C A screen having inclined slots for use in a continuous digester |
| 10/17/2000 | CA2021210C Adjustable valve for filters |
| 10/05/2000 | WO2000058549A1 Screening apparatus including two screen means |
| 09/27/2000 | EP1039021A1 Method for wet screening fibrous suspensions in pressure screens and pressure screen |
| 09/21/2000 | DE19911884A1 Drucksortierer zum Sieben einer Papierfaserstoffsuspension und Siebräumer für einen solchen Pressure screen for screening a paper pulp suspension and Siebräumer for such a |
| 09/20/2000 | EP1036879A1 Pressure screen for fibre suspensions and a cleaning rotor for such a screen |