| Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157) |
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| 04/28/2004 | CN1147342C Degassing centrifugal apparatus, process for pumping and degassing fluid and process for producing paper or board |
| 04/27/2004 | US6726022 Screening device and rotor for use in a screening device |
| 04/27/2004 | CA2182833C Screening apparatus for wood pulp |
| 04/22/2004 | DE10247166A1 Process to make paper sorting sieve with three parallel rods separated by narrow gap and transposed and tensioned in position prior to welding |
| 04/21/2004 | EP1409103A1 Degassing centrifugal apparatus, process for pumping and degassing a fluid and process for producing paper or board |
| 04/21/2004 | CN1491303A Filter for fibrous suspensions |
| 04/20/2004 | US6723205 Degassing centrifugal apparatus with energy recovery, process for degassing a fluid and process for producing paper or board |
| 04/15/2004 | DE10296521T5 Pumpvorrichtung Pumping device |
| 04/14/2004 | EP1407073A1 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 04/14/2004 | EP1407060A1 Hard-chromed sieve basket |
| 04/14/2004 | EP1266073B1 Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method |
| 04/14/2004 | EP1155185B1 Method and means for paper pulp filtering |
| 04/13/2004 | US6719145 Arrangement and rotor for screening of pulp |
| 04/08/2004 | US20040065600 Filter for fibrous suspensions |
| 04/06/2004 | US6716307 Process and system for the removal of scale build-up |
| 04/01/2004 | US20040060680 Deaeration tank can be accomplished without an overflow if it is in hydraulic connection with an overflow surface in the cellar |
| 03/31/2004 | EP1403422A1 Process for treating waste paper |
| 03/31/2004 | EP1183419B1 Method and apparatus for preparing paper pulp from used paper |
| 03/31/2004 | EP0868564B2 Screening arrangement |
| 03/23/2004 | US6709488 Assembly and method for separating gas from flowing liquids |
| 03/18/2004 | US20040050510 Filtration of pulp mill liquids |
| 03/16/2004 | CA2195097C Method and apparatus for screening fibrous suspensions |
| 03/11/2004 | DE10218377B4 Verfahren und Vorrichtung zur Schwerstoffabtrennung aus Aufschlämmungen Method and apparatus for heavy inert separation from slurries |
| 03/10/2004 | EP1395704A1 Printing paper |
| 03/09/2004 | US6702120 Screening apparatus including two screen means |
| 03/04/2004 | WO2004018767A1 Production of refined cellulose fibre from waste materials |
| 03/03/2004 | EP1394318A1 Pressure screen for screening a fibrous suspension |
| 03/03/2004 | EP1297220A4 Method to manufacture paper using fiber filler complexes |
| 02/26/2004 | US20040035959 Method and system for utilizing waste |
| 02/26/2004 | US20040035761 Pressurized screen for screening a fibrous suspension |
| 02/25/2004 | EP1390581A1 Screen for screening of pulp suspensions |
| 02/25/2004 | EP1121483B1 Method and apparatus for pretreating paper pulp |
| 02/19/2004 | US20040031577 Defibering wood pulp, then seperating according to fiber length or flexibility; quality |
| 02/19/2004 | DE10244521B3 Conversion of used paper into papermaking pulp, for quality graphic papers, has a fine sorting for the suspension while the rejected matter is separated into long and short fiber fractions for further cleaning and processing |
| 02/12/2004 | US20040026050 Centrifuging, cleaning; pressurized screens; bypass manifolds; circulation |
| 02/11/2004 | EP1076734B1 Screening device |
| 02/05/2004 | WO2004011718A1 Installation for purifying papermaking pulp |
| 01/29/2004 | US20040016685 System for separating fluid-borne material from a fluid that carries particulate matter along with the material |
| 01/29/2004 | DE20316687U1 Assembly to degas fiber suspensions has a horizontal and cylindrical vessel, with a number of distribution pipes to feed different suspension flows, with outlets for the gas-free suspension and the separated gas, and a surplus overflow |
| 01/27/2004 | CA2235549C Deaeration vessel |
| 01/23/2004 | CA2435787A1 Pressurized screen for screening a fibrous suspension |
| 01/22/2004 | WO2004007835A2 System for separating fluid-borne material from a fluid that carries particulate matter along with the material |
| 01/22/2004 | US20040011483 Method and apparatus and screen for screening mechanical fiber pulp |
| 01/20/2004 | US6679384 Method and means for paper pulp filtering |
| 01/20/2004 | CA2388258C Method and apparatus for screening fibrous suspensions |
| 01/15/2004 | US20040007337 Method and screen for screening at least two pulp mixtures |
| 01/14/2004 | EP1379726A1 Method and equipment for pulp fractionation in a paper or board machine |
| 01/14/2004 | EP1379474A2 Process and apparatus for the removal of scale build-up |
| 01/14/2004 | CN1468361A Method and apparatus for separation of steam and gas from possibly glue-coated fibre pulp produced by a refiner |
| 01/14/2004 | CN1134567C Method and apparatus for pretreating paper pulp |
| 01/14/2004 | CN1134566C Screen device |
| 01/08/2004 | WO2004003289A1 A process for the production of cellulose fiber pulp |
| 01/08/2004 | WO2004003288A1 Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
| 01/08/2004 | US20040004032 Process for wet screening fibrous suspensions |
| 01/08/2004 | CA2491533A1 Method of manufacturing mechanical or chemi-mechanical pulp and an apparatus for manufacturing the same |
| 01/08/2004 | CA2491111A1 A process for the production of cellulose fiber pulp |
| 01/07/2004 | EP1070168B1 Pressure screen with scrap separation |
| 01/07/2004 | CN1465808A Deinking method for waste paper float selection and equipment thereof |
| 12/31/2003 | WO2002057542A8 Apparatus for passing stock into a headbox of a paper machine or equivalent |
| 12/30/2003 | US6669028 Cylindrical screen |
| 12/30/2003 | US6669025 Screen |
| 12/24/2003 | DE10233364C1 Drucksortierer zum Sieben einer Faserstoffsuspension A pressure grader for screening a pulp suspension |
| 12/24/2003 | CN1131908C 用旧纸制备纸浆的方法和设备 Old paper with a method and apparatus for preparing pulp |
| 12/18/2003 | WO2003104549A1 Multi-stage screening apparatus, screen basket and method for screening pulp suspensions |
| 12/18/2003 | WO2003104548A1 Fractionation apparatus and method in fractionation of stock in a paper machine or equivalent |
| 12/11/2003 | WO2003102297A1 Basket for the filtering of fibres in aqueous suspension |
| 12/11/2003 | US20030226801 Slotted screen assembly |
| 12/10/2003 | EP1369603A1 Screwelement, and place of junction to rotate the screw |
| 12/10/2003 | EP1368533A1 Method for controlling screening by measuring flow amount and consistency of the pulp |
| 12/10/2003 | EP1029194B8 Pipe attachment |
| 12/04/2003 | WO2003099447A1 Hydrocyclone |
| 12/04/2003 | US20030223841 Process for the releasable attachment of wearing parts in devices for treating suspended fiber stock |
| 12/04/2003 | CA2485617A1 Hydrocyclone |
| 12/02/2003 | CA2251956C Method and apparatus for filling a pulp tower |
| 11/18/2003 | USRE38317 Method and apparatus for treating filler-containing material, such as recycled fibers |
| 11/18/2003 | US6649068 Filtration of pulp mill liquids |
| 11/12/2003 | EP1360371A1 Filter for fibrous suspensions |
| 11/12/2003 | EP1071844B1 A process and apparatus for the production of cellulose pulps of improved quality |
| 11/06/2003 | WO2003091497A1 A screen section, screen cylinder, screening device, and method of screening fibrous material |
| 11/06/2003 | WO2003091496A1 Bar screen device |
| 11/06/2003 | WO2003090894A1 Method and device for separating out dense materials |
| 11/06/2003 | CA2480294A1 Bar screen device |
| 11/04/2003 | US6641724 Tangential separating device for solid matter |
| 10/29/2003 | EP1357222A1 Process for wet screening fibrous suspensions |
| 10/29/2003 | EP1084293B1 Screen device comprising two screen chambers for separating fibre suspensions |
| 10/23/2003 | CA2426147A1 Process for wet screening fibrous suspensions |
| 10/14/2003 | US6631809 Infeed branch having axis, rotatable rotor, and stationary installation |
| 10/14/2003 | CA2235011C Hydrocyclone separator |
| 10/08/2003 | CN1446612A Method and appts. for transferring freely-flowing medium |
| 10/01/2003 | CN2576769Y High-speed stock washer |
| 09/24/2003 | EP1347094A1 Method and apparatus for feeding fluid media |
| 09/24/2003 | EP1346104A1 Apparatus for passing stock into a headbox of a paper machine or equivalent |
| 09/24/2003 | CN2575136Y Road surface drainage brick |
| 09/23/2003 | US6622868 System for recovering and recycling usable fibers from white water in a papermaking process |
| 09/16/2003 | CA2240101C Modular screen cylinder and a method for its manufacture |
| 09/16/2003 | CA2072906C Screening apparatus for paper making stock |
| 09/10/2003 | EP1342833A2 Method for reducing and adjusting the content of fine solids in a pulp suspension |
| 09/10/2003 | EP1342528A1 Method for increasing the wear resistance of housings in waste paper recycling equipment |
| 09/09/2003 | US6617720 A switched reluctance motor carries a rotatable pulp processing element |
| 09/09/2003 | US6615988 Connection device for connecting a hydrocyclone |