| Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157) |
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| 07/21/1999 | CN2329688Y Combined residue remover |
| 07/20/1999 | US5925249 Screening arrangement |
| 07/15/1999 | WO1999035331A2 Solid bowl centrifuge for mixtures, especially for fibrous material suspensions used in the paper industry |
| 07/15/1999 | DE19836318A1 Rotor for fiber suspension pressure sorter for papermaking |
| 07/15/1999 | DE19800653A1 Vorrichtung zum Abtrennen von Partikeln, oder von Partikeln und Gasen, oder von Fluiden anderer Dichte aus Flüssigkeiten, oder Suspensionen, oder Emulsionen, die ein feststehendes Gehäuse besitzt und mit Hilfe der Zentrifugalkraft separiert und auch diese obengenannten Medien durch diese Vorrichtung und eventuell nachgeschaltete Mittel fördert Promotes apparatus for separating particles, or of particles and gases, or fluids of different density from liquids, or suspensions, or emulsions, having a fixed housing and separated by means of centrifugal force and this above-mentioned media by this device and possibly downstream means |
| 07/15/1999 | CA2317528A1 Solid bowl centrifuge for mixtures, especially for fibrous material suspensions used in the paper industry |
| 07/14/1999 | EP0928842A2 Coarse wet particles and process for making the coarse wet particles |
| 07/14/1999 | EP0928350A1 Baffle for reactors used for liquids purification |
| 07/14/1999 | EP0928223A1 Through-flow cleaner with improved inlet section |
| 07/14/1999 | CN2328688Y Seam screen for pulp separation |
| 07/07/1999 | CN1222208A Method and appts.for filling pulp tower |
| 07/01/1999 | WO1999032712A1 Screening device for fiber suspensions with stationary flow restriction |
| 07/01/1999 | WO1999032711A1 Screening device |
| 06/30/1999 | EP0926295A1 Paper-making screen apparatus |
| 06/30/1999 | CN1221053A Paper-making screen apparatus |
| 06/29/1999 | CA2003515C Method of and device for fractionating suspensions |
| 06/22/1999 | US5914048 Adjustable control valve system for rotating disc filter and method of operating the system |
| 06/10/1999 | WO1999028549A1 Pressure screen for screening pulp |
| 06/09/1999 | EP0805890B1 Fibre suspension pressure sorting machine and sieve for such pressure sorting machines |
| 06/09/1999 | CN2323002Y Horizontal belt pulp dresser |
| 06/08/1999 | US5909847 Flushing cleaner for multiple shower wand assemblies |
| 05/27/1999 | WO1999026012A1 Pipe attachment |
| 05/27/1999 | WO1999025918A1 Storage tower intended for pulp |
| 05/27/1999 | WO1999025456A1 Adjustable control valve system for rotating disc filter |
| 05/20/1999 | WO1999024663A1 Screen panel |
| 05/20/1999 | WO1999024662A1 Method and apparatus for treatment of fiber suspension |
| 05/20/1999 | WO1999024143A1 Composite screen |
| 05/20/1999 | CA2308508A1 Screen panel |
| 05/20/1999 | CA2308449A1 Composite screen |
| 05/20/1999 | CA2278610A1 Method and apparatus for treatment of fiber suspension |
| 05/19/1999 | EP0916000A1 Perfected reactor for liquids purification |
| 05/18/1999 | US5904753 Separation device and process |
| 05/14/1999 | WO1999023295A1 Rotating cleaning foil for screening of pulp |
| 05/11/1999 | US5902581 Having significant activity at low ph and high temperature; useful for bleaching pulp for papermaking, treating feed grains to improve digestibility |
| 05/11/1999 | US5901853 Apparatus and method for extracting impurities from a pulpous slurry |
| 05/06/1999 | WO1999022064A1 Method of making screen cylinder, and screen cylinder |
| 05/06/1999 | EP0912796A1 Method and apparatus for filling a pulp tower |
| 05/06/1999 | EP0912795A1 Screen plate for screening of a pulp suspension and method to separate the same |
| 05/06/1999 | EP0912794A1 A cylindrical screen and a method of producing the same |
| 05/06/1999 | EP0912789A2 Stock washer for washing, thickening and classifying solids |
| 05/04/1999 | US5899342 To separate light fraction of pulp from dense fraction of pulp |
| 05/04/1999 | US5899338 Screening apparatus for separating light impurities from pulp suspensions |
| 05/04/1999 | CA2124778C Screening device for a fiber slurry, and a backwash means therefor |
| 04/30/1999 | CA2252148A1 Control system for repulping apparatus |
| 04/28/1999 | EP0910475A1 Pulp decontamination apparatus and method of use |
| 04/27/1999 | CA2140134C Screening apparatus for papermaking pulp |
| 04/21/1999 | CN1214748A Method and device at pumping of medium |
| 04/07/1999 | EP0906466A1 Device for separating contaminants from fibre pulp suspensions |
| 04/07/1999 | EP0809731B1 Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor |
| 04/07/1999 | EP0726981B1 Arrangement in a pressure screen for separating impurities from a fibre suspension fed into the screen |
| 04/07/1999 | CN1213418A Paper pulp screen cylinder |
| 04/06/1999 | US5891307 Volumetric percentage of air in the fiber suspension is determined, dependent upon the established speed of sound through the fiber suspension |
| 03/31/1999 | EP0905309A2 Screen and pressure screening device for fibre suspensions |
| 03/23/1999 | US5884774 Papermaking screen |
| 03/23/1999 | CA2055064C Screening apparatus for paper making stock |
| 03/18/1999 | WO1999013152A1 Manufacture of screen plate with screen slots obtained by laser beam cutting |
| 03/18/1999 | CA2301859A1 Manufacture of screen plate with screen slots obtained by laser beam cutting |
| 03/16/1999 | US5882475 Cleaning in first set of cleaners and fractionating to remove majority of ink, agitation to disperse fiber flocs, return stream to first set of cleaners to recover usable fiber |
| 03/16/1999 | US5881887 Apparatus called "TSS"-the turbo screening system, for filtering and fractionation of suspensions containing fibres, fibre fragments, fines and other particles |
| 03/16/1999 | CA2165293C Cellulose pulps having improved softness potential and method of making such pulps |
| 03/16/1999 | CA2153825C Paper making screen plate |
| 03/11/1999 | WO1999011357A1 Apparatus for filtering suspensions |
| 03/11/1999 | CA2301164A1 Apparatus for filtering suspensions |
| 03/04/1999 | DE19736127A1 Fiber suspension sorting sieve |
| 03/02/1999 | US5876560 Method and apparatus for removing gas from a fibre-liquid suspension |
| 02/23/1999 | CA2151593C Apparatus for filtering suspensions |
| 02/23/1999 | CA2035533C Method and an apparatus for separatring gas from a suspension containing gas |
| 02/18/1999 | WO1999007485A1 Paper stock screening apparatus and method |
| 02/18/1999 | WO1999007477A1 Tube trap |
| 02/18/1999 | CA2297744A1 Paper stock screening apparatus and method |
| 02/16/1999 | CA2159919C Screening apparatus with adjustable hydrofoil portion |
| 02/10/1999 | CN2307020Y Reject remover |
| 02/09/1999 | US5868905 Paper-making machine including a deaerator for a fiber suspension |
| 02/04/1999 | CA2243374A1 Tramp material removal from pulp feed systems |
| 01/27/1999 | EP0893536A2 Modular screen cylinder and a method for its manufacture |
| 01/26/1999 | CA2075509C Screen with a surface having projections or depressions |
| 01/20/1999 | EP0863784A4 Extended dwell reverse hydrocyclone cleaner |
| 01/19/1999 | US5861052 Gas-free re-cycling of backwater drained through a forming fabric in a papermaking process |
| 01/13/1999 | EP0889989A1 Method and device at the pumping of a medium |
| 01/12/1999 | CA2053651C Hydrocyclone |
| 01/07/1999 | EP0888477A1 Paper pulp screen cylinder |
| 01/07/1999 | DE19747653A1 Manufacturing method for sieve used e.g. to sort fibre pulp suspensions |
| 01/06/1999 | CN1203985A Method for making packing paper by using waste residue produced in production of furfural or xylitol |
| 12/30/1998 | WO1998059109A1 Screening cylinder |
| 12/30/1998 | EP0887459A1 Pressure screen for fibre suspensions |
| 12/30/1998 | EP0887458A1 Process to suspend and clean a paper stock containing contaminants |
| 12/24/1998 | DE19725737A1 Stabsiebkorb für Fasersuspensionen und Verfahren zu seiner Herstellung Screen basket for fiber suspensions, and method for its preparation |
| 12/23/1998 | WO1998057723A1 Bar screen basket for fiber suspensions and method for the production thereof |
| 12/23/1998 | EP0885325A1 Magnetic deinking of waste papers |
| 12/22/1998 | US5851349 Magnetic deinking of waste papers |
| 12/16/1998 | CN1201852A Filter for pulp fluid used in manufacturing paper |
| 12/15/1998 | US5849149 Magnetic deinking of waste papers |
| 12/09/1998 | EP0882514A1 Separation device |
| 12/03/1998 | WO1998054403A1 Baffle for reactors used for liquids purification |
| 12/03/1998 | WO1998054402A1 Perfected reactor for liquids purification |
| 12/02/1998 | EP0721526B1 Method and apparatus for dewatering of a fibre suspension |
| 11/26/1998 | WO1998053135A1 Blade arrangement for pulp screening apparatus |
| 11/25/1998 | EP0879315A1 Fibresaver screen basket support |
| 11/24/1998 | US5840378 Endless fabric for condensing paper material and method of making thereof |
| 11/24/1998 | US5839142 Stock washer for washing, thickening and classifying solids |