| Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157) |
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| 12/01/2004 | CN1550267A Raw material separating and treating method |
| 11/25/2004 | US20040231811 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 11/24/2004 | EP1479425A1 Plant for cleaning and degassing fibrous suspension |
| 11/23/2004 | CA2261677C Through-flow cleaner with improved inlet section |
| 11/20/2004 | CA2467849A1 Plant for cleaning and degassing a fibrous suspension |
| 11/17/2004 | CN2656473Y Rotary wing blade used for paper making pulp pressure screening machine |
| 11/17/2004 | CN2656472Y Fibre classification screen |
| 11/17/2004 | CN1176270C Grinding screen machine |
| 11/16/2004 | US6818099 Raw material for printing paper, method to produce it and printing paper |
| 11/11/2004 | WO2004097107A1 Method and arrangement at gas removal, and the use thereof |
| 11/11/2004 | WO2004097106A1 A method for selective removal of ray cells from cellulose pulp |
| 11/11/2004 | US20040222161 Process and device for aerating suspensions |
| 11/11/2004 | CA2524177A1 A method for selective removal of ray cells from cellulose pulp |
| 11/03/2004 | CN1542220A Screen for cleaning a fiber suspension |
| 11/03/2004 | CN1542219A Screen for cleaning a fiber suspension |
| 11/02/2004 | US6811655 Apparatus for preparing paper pulp from used paper |
| 10/28/2004 | WO2004053225A3 A multi-element airfoil for pulp screens |
| 10/20/2004 | CN2649631Y Internal-flow head screen |
| 10/20/2004 | CN1171769C Bulk granular material loading vehicle |
| 10/14/2004 | DE202004013075U1 Sieb Sieve |
| 10/14/2004 | DE10331683B3 Assembly to clean used paper fiber suspensions, for recycling, has a rotating reject collection chamber to spin off heavy particles and a returned part-flow to prevent loss of usable fibers |
| 10/13/2004 | CN2647903Y Middle and low concentration slag removing device |
| 10/07/2004 | US20040195169 Screen for cleaning a fiber suspension |
| 10/07/2004 | US20040195168 Screen for cleaning a fiber suspension |
| 10/07/2004 | US20040195167 Drum type paper stock fine screen |
| 10/07/2004 | US20040195158 Hard-chromed sieve basket |
| 10/07/2004 | DE202004005031U1 Sieve assembly for repulping paper fiber suspensions, especially from waste paper with impurities for recycling, has bars with a plasma-supported surface treatment to deposit foreign ions and a hard coating |
| 10/06/2004 | EP1297220B1 Method to manufacture paper using fiber filler complexes |
| 09/29/2004 | EP1462568A1 Screen for purification of fibrous pulp |
| 09/29/2004 | EP1462567A1 Screen for purification of fibrous pulp |
| 09/27/2004 | CA2459625A1 Screen for cleaning a fibre suspension |
| 09/27/2004 | CA2459601A1 Screen for cleaning a fibre suspension |
| 09/23/2004 | US20040182535 Headbox of a paper machine or equivalent |
| 09/23/2004 | DE10309319A1 Sieve assembly, to screen paper fiber suspensions and separate impurities, has concentric collection chambers for the screened fibers to be cleared separately to control flows through the sieve openings |
| 09/23/2004 | DE10255313B4 Anlage zur Reinigung und Entgasung einer Faserstoffsuspension System for cleaning and degassing of a fiber suspension |
| 09/22/2004 | CN2642821Y Strip type seam screening drum |
| 09/22/2004 | CN1531615A Process and apparatus for removal of scale build-up |
| 09/14/2004 | US6789681 Screen for fiber suspensions and method for the manufacture thereof |
| 09/09/2004 | DE10331022A1 Process to remove metal particles from suspension of paper fibre by fixed magnetic cylinder surrounded by rotating helical blade and outer tube |
| 09/09/2004 | DE10322572B3 Paper industry fibre suspension cleaning assembly removes heavy solids and gas by hydro-cyclone pipes discharging downwards to collector |
| 09/08/2004 | CN2639345Y Cylinder screen of pulp pressure screening machine |
| 09/01/2004 | EP1452638A1 Method and device for aerating suspensions |
| 09/01/2004 | EP1450958A1 Extraction bedplate with laser or water jet cut apertures |
| 09/01/2004 | CN2637538Y 纸浆筛选网 Pulp screening network |
| 09/01/2004 | CN1524621A Process and device for aerating suspensions |
| 08/26/2004 | WO2004072365A1 Apparatus and method in the treatment of the stock passed to a headbox of a paper machine or equivalent |
| 08/26/2004 | DE10304621A1 Verfahren zur Bestimmung von rheologischen Eigenschaften einer Faserstoffsuspension Method for determining rheological properties of a fibrous suspension |
| 08/26/2004 | CA2512222A1 Apparatus and method in the treatment of the stock passed to a headbox of a paper machine or equivalent |
| 08/25/2004 | EP1449957A1 Process for determining the properties of a fibrous suspension |
| 08/25/2004 | CA2456757A1 Process and device for aerating suspensions |
| 08/12/2004 | US20040154765 Containing pulp as fiber; brigthness; opacity; smoothness |
| 08/11/2004 | CN1519425A Method for removing heteroproteose cells in chemical or in semi chemical straw pulp of rice and wheat |
| 08/05/2004 | WO2004065687A1 Filter sector for use in rotary disc filters for separating pulp suspensions |
| 08/05/2004 | US20040149633 Screen for screening of pulp suspensions |
| 08/05/2004 | CA2512445A1 Filter sector for use in rotary disc filters for separating pulp suspensions |
| 08/04/2004 | CN1517488A Process and device for inflation suspension |
| 08/04/2004 | CN1160501C Method for production of paper or cardboard |
| 07/28/2004 | EP1441064A1 Method and device for aerating suspensions |
| 07/28/2004 | EP1198637B1 Screening apparatus with slotring moveable in axial direction |
| 07/27/2004 | CA2267461C Screening device, such as a screen cylinder, and method of manufacture of the screening device |
| 07/24/2004 | CA2454737A1 Process and device for aerating suspensions |
| 07/22/2004 | DE20304303U1 Pressurised paper fibre suspension sorting assembly has rotating cylinder with a series of free standing surface-mounted blades set at different angles of attack |
| 07/20/2004 | CA2236722C Paper-making screen apparatus |
| 07/20/2004 | CA2176938C Device for admixing a processing agent to a pulp suspension |
| 07/20/2004 | CA2174874C Pretreatment of chips before cooking |
| 07/14/2004 | EP1165882B1 Screening apparatus including two screen means |
| 07/07/2004 | EP1240386B1 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus |
| 07/07/2004 | CN1156629C Method and appts. for washing fiber pulp mixture |
| 06/24/2004 | WO2004053225A2 A multi-element airfoil for pulp screens |
| 06/24/2004 | DE10255313A1 Anlage zur Reinigung und Entgasung einer Faserstoffsuspension System for cleaning and degassing of a fiber suspension |
| 06/22/2004 | CA2293515C Bar screen basket for fiber suspensions and method for the production thereof |
| 06/17/2004 | US20040112827 Screening device, such as a screen cylinder, and method of manufacture of the screening device |
| 06/17/2004 | US20040112797 Screen apparatus |
| 06/10/2004 | US20040108254 Multi-element airfoil for pulp screens |
| 06/08/2004 | US6746572 Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method |
| 06/08/2004 | US6745469 Method of making screen media and a screening passage therefore |
| 06/03/2004 | WO2004046457A1 Method and apparatus for treating fiber suspension |
| 06/02/2004 | EP1424436A1 Plant for cleaning and degassing fibrous suspension |
| 06/02/2004 | CN1500936A Dissociating apparatus for papermaking raw material and method for dissociating papermaking raw material |
| 05/27/2004 | US20040099583 Screen cylinder with performance boosting configuration |
| 05/26/2004 | CN1499009A System and method for feeding fibrous material suspensoid for material expansion |
| 05/25/2004 | CA2249248C Method and device at the pumping of a medium |
| 05/20/2004 | US20040094646 Dissociating apparatus for papermaking raw material and method for dissociating papermaking raw material |
| 05/19/2004 | EP1420110A2 Screen apparatus |
| 05/19/2004 | EP1420108A1 Apparatus and method for comminuting papermaking raw material |
| 05/19/2004 | CN1496765A Screening plant |
| 05/15/2004 | CA2445919A1 Dissociating apparatus for papermaking raw material and method for dissociating papermaking raw material |
| 05/13/2004 | WO2004040058A1 Apparatus and method for production of pulp |
| 05/13/2004 | US20040091371 Pumping device |
| 05/13/2004 | DE10250865B3 System und Verfahren zur Zuführung einer Faserstoffsuspension zu einem Stoffauflauf System and method for supplying a pulp suspension to a headbox |
| 05/11/2004 | US6733629 Method of controlling the operation of an approach system of a paper machine or the like web formation apparatus |
| 05/06/2004 | EP1416084A1 System and method for feeding pulp suspension to a headbox |
| 05/06/2004 | EP1415094A1 Pulp pump |
| 05/06/2004 | DE10248145A1 Separator drum to remove foreign bodies from fluid suspension of papermaking fiber has fluid baffle brake positioned between inlet and outlet |
| 05/05/2004 | CN1494626A Method and screen for screening at least two pulp mixtures |
| 04/29/2004 | US20040079682 Screen apparatus |
| 04/28/2004 | EP1413671A1 Screen apparatus |
| 04/28/2004 | EP1413359A1 Process and apparatus for separating heavy materials from a fibrous suspension |
| 04/28/2004 | EP1071843B1 Method of making screen cylinder, and screen cylinder |
| 04/28/2004 | CN1492103A Siever |