| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 06/20/2001 | CN1300331A Papermaking belt providing improved drying efficiency for cellulosic fibrous structures |
| 06/19/2001 | US6248214 Headbox |
| 06/19/2001 | US6248213 Accurate optimization of washing chemical dosage by controlling further dosage of wash liquid in response to measurement of the amount of the washing chemical-dosed wash liquid removed from fabric at a point |
| 06/19/2001 | US6248207 Screening suspension to remove fibers, filtrate is dispersed in air flotation in the presence of calcium and a separation aid to form an upper fraction where the hydrophobic material is concentrated and lower fraction of cellulosic fines |
| 06/14/2001 | WO2001042558A1 Papermaking fabric |
| 06/14/2001 | WO2001041991A1 A purification method |
| 06/13/2001 | EP1105561A1 Laminated multi-layered seam product with formed loops |
| 06/13/2001 | EP0874938B1 Paper having improved pinhole characteristics and papermaking belt for making the same |
| 06/13/2001 | DE10102087A1 Adjustment of fiber orientation in pulp suspension takes place in turbulence generator tube where step changes in cross section have variable separation for flow control |
| 06/13/2001 | CN2434328Y Wood fiber recovering appts |
| 06/13/2001 | CN1299425A Process for prodn. of paper |
| 06/12/2001 | US6245269 Process for preparing fiber boards |
| 06/12/2001 | US6244306 Papermaker's forming fabric |
| 06/07/2001 | WO2001040572A1 Method for using water hydraulics in a paper or board machine |
| 06/07/2001 | WO2001040554A1 Method for the production of hydrolysis stabilized polyester monofilaments and use thereof |
| 06/07/2001 | US20010002692 Twin fabric forming section blade mounting |
| 06/06/2001 | CN1298466A A process for the production of paper |
| 06/06/2001 | CN1066793C Triple layer papermaking fabric with improved fiber support purpose |
| 06/05/2001 | US6241081 Modified spiral seam arrangement |
| 06/05/2001 | US6240973 Forming fabric woven with warp triplets |
| 06/01/2001 | CA2291882A1 Method and composition for preventing pitch deposits in paper mills using resinous mechanical pulps |
| 05/31/2001 | WO2001038632A1 Method and device for handling filled reject flows in a paper or paperboard mill |
| 05/31/2001 | DE19957625A1 Burred belt for the extraction of water from a wet paper/cardboard web has projecting burrs with structured cross section shapes so that the loading of the peripheral forces gives a higher pressure force portion than the tensile force |
| 05/31/2001 | DE19957617A1 Molding continuous plastic band with elevated stud structures for e.g. paper dewatering duty, employs molding band to cast or press studs and insert rigid pegs |
| 05/31/2001 | DE19957616A1 Producing band with e.g. studs or pegs used in papermaking machine, introduces prefabricated studs or pegs into band during casting before setting |
| 05/30/2001 | EP1102888A1 Method for regulation of the surface level and the consistency in a tank for metering of a component stock |
| 05/30/2001 | EP1102887A1 Process arrangement for the short circulation in a paper or board machine |
| 05/30/2001 | EP1102886A1 Control system for a vacuum pump used for removing liquid and a method of controlling said pump |
| 05/30/2001 | EP1102885A1 Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilution of fresh stock |
| 05/29/2001 | US6237644 Tissue forming fabrics |
| 05/25/2001 | WO2001036744A1 Twin fabric forming section blade mounting |
| 05/25/2001 | WO2001036743A1 Compliant brush shower |
| 05/23/2001 | DE19953225A1 Fiber orientation control in a paper/cardboard web uses pulp flow data at the stock inlet to correct the flow speed and pulp throughput in sections by a diaphragm together with throttles and fluid feed/extraction systems |
| 05/23/2001 | DE19949067C1 Valve, for dosed suspension feed into stock inlet of papermaking machine, has hollow body with funnel-shape shoulder and inner spindle with axial setting and pineapple-shaped spindle head |
| 05/22/2001 | US6235159 Convergent flow headbox |
| 05/22/2001 | US6234213 Transfer fabric and papermaking machine using the same |
| 05/17/2001 | WO2001034904A1 Apparatus for maintaining a fluid seal with a moving substrate |
| 05/17/2001 | DE19949265A1 Verfahren zum Minimieren des Neuwassereinsatzes im Wasserkreislauf bei einer Aufbereitungsanlage A method for minimizing the Neuwassereinsatzes in the water cycle at a treatment plant |
| 05/17/2001 | DE19944864A1 Band für den Umlauf in Maschinen sowie Verfahren zu dessen Herstellung Band for circulation in the machine and process for its preparation |
| 05/17/2001 | DE10042072A1 Distributor of fiber suspension pulp onto Fourdrinier, comprises spray within spray chamber on one side of the Fourdrinier, and suction chamber under it to give consistent laid pulp layer longitudinally and laterally |
| 05/16/2001 | EP1099793A2 Method and device in the regulatiion of the headbox |
| 05/16/2001 | EP1099792A2 Flotation process and device for separating solid particles of a paper fibre suspension |
| 05/15/2001 | CA2277979C Roll and blade twin-wire gap former for a paper machine |
| 05/15/2001 | CA2192316C Paper structure having at least three regions, and apparatus and process for making the same |
| 05/10/2001 | DE19952936A1 Doppelsiebformer A twin |
| 05/10/2001 | DE10048305A1 Guide surface for continuous fibrous sheets, e.g. on rolls handling paper, involves uniformly distributed rows of rounded gentle dimples |
| 05/09/2001 | EP1098035A2 Twin-wire former |
| 05/09/2001 | EP1098032A2 Sealing arrangement for pulp dewatering arrangement |
| 05/09/2001 | EP1098031A1 Procedure for arranging water circulations in an integrated paper mill |
| 05/09/2001 | EP0817883B1 Machine clothing having a seam, and spiral for use in such a seam |
| 05/08/2001 | US6228220 Air press method for dewatering a wet web |
| 05/08/2001 | US6227696 Radial diffuser |
| 05/08/2001 | US6227374 Process and floatation device for the removal of interfering materials from an aqueous fiber pulp suspension |
| 05/08/2001 | US6227256 Multi-layer papermaking fabric having long weft floats on its support and machine surfaces |
| 05/08/2001 | US6227255 Warped-reinforced woven fabric |
| 05/03/2001 | WO2001031120A1 Arrangement in the wet end of a paper machine |
| 05/03/2001 | DE19951794A1 Verfahren und Vorrichtung zur Entwässerung einer Faserstoffbahn Method and apparatus for dewatering a fibrous web |
| 05/02/2001 | EP1096064A2 Process and apparatus for dewatering a fibrous web |
| 05/01/2001 | US6223781 Joining loop for joining industrial belt and joining part of industrial belt using the loop |
| 05/01/2001 | US6223780 Textile planar structure having machine and cross-machine direction binding yarns |
| 04/26/2001 | WO2001029311A1 A method for the manufacture of layered paper or board |
| 04/26/2001 | WO2001029310A1 Method for providing a wire for forming a patterned fibre web, a wire and a patterned fibre web produced thereby |
| 04/26/2001 | DE19948176A1 Flotationsvorrichtung zur Störstoff- insbesondere Druckfarbenentfernung aus Papierfasersuspensionen A flotation device for Störstoff- particular ink removal from paper fiber suspensions |
| 04/25/2001 | EP1094149A1 Law caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns |
| 04/24/2001 | US6221265 Method and device for concentrating liquid-drenched material |
| 04/24/2001 | US6221215 Suction device and process for conditioning and/or drainage of an endless felt |
| 04/24/2001 | US6221213 Generating constant magnetic field using generator entirely from within one of lip elements at slice gap and measuring field intensity with measuring device entirely within other of lip elements to determine gap between lip elements |
| 04/19/2001 | WO2001027386A1 Method and arrangement for mixing pulp components in the manufacture of paper |
| 04/19/2001 | WO2001027385A1 Forming fabric woven with warp triplets |
| 04/19/2001 | WO2001027383A1 Method for minimising the new water use in the water circulation system of a treatment plant |
| 04/19/2001 | CA2387140A1 Method for minimising the new water use in the water circulation system of a treatment plant |
| 04/18/2001 | EP0788570B1 Method for making smooth uncreped throughdried sheets |
| 04/12/2001 | WO2001025535A1 Method for paper machine cleanliness |
| 04/12/2001 | WO2001025532A1 Procedure and means for generating turbulence in stock suspension flow |
| 04/12/2001 | DE19947745A1 Throttle valve assembly for the fiber suspension flows at a papermaking or cardboard prodn machine has inlets for two or more incoming flows to prevent fiber clogging and stoppages |
| 04/12/2001 | DE19946756A1 Stock inlet for a papermaking or cardboard prodn machine has a blade inserted between the rows of turbulence tubes with a lateral zone of a reduced cross section to reduce force peaks on starting/stopping the stock inlet |
| 04/11/2001 | EP1091041A1 Flotation apparatus for removing contaminants, especially printing inks, from a fibrous suspension |
| 04/11/2001 | EP1090187A1 Marking substances and security markings, method for integrating these into the pulp line and method for testing the same |
| 04/11/2001 | EP1089882A2 Method for marking paper and paperboard |
| 04/11/2001 | CN1291247A Multi-layer forming fabric with yarn pairs integrated into papermaking surface |
| 04/10/2001 | US6214465 Floor absorbent granular product comprising kaokin clay and cellulose fibers |
| 04/10/2001 | US6214170 Process for cleaning or maintaining the cleanliness of the low-consistency branch of a headbox system |
| 04/10/2001 | US6214169 Sheet formation system with deckle plates and method for reducing edge waves |
| 04/10/2001 | US6214166 Mixing residual water sludge with raw materials, milling |
| 04/10/2001 | US6213164 Pintle seamed press felt |
| 04/10/2001 | US6212739 Expandable pintle wires |
| 04/04/2001 | EP0951601B1 Separator for a multilayer headbox |
| 04/03/2001 | US6210535 Stock feed system for a multi-layer headbox and method in the operation of a multi-layer headbox |
| 04/03/2001 | US6210529 Method for regulating the surface level and consistency in a tank for metering component stock |
| 03/29/2001 | WO2001021887A1 Edge sensing arrangement |
| 03/29/2001 | WO2001021886A1 Turbulence pipe with at least one corrugated wall and a procedure for forming it |
| 03/29/2001 | WO2001021885A1 Regulation system for the short circulation and headbox of a paper machine or equivalent |
| 03/29/2001 | WO2001021884A1 Paper machine cover |
| 03/29/2001 | WO2001021312A1 Method and device for processing pulp |
| 03/29/2001 | CA2385677A1 Edge sensing arrangement |
| 03/28/2001 | EP1085933A1 Phase-separation member |
| 03/27/2001 | US6207598 Soft-faced dryer fabric |
| 03/27/2001 | US6207018 Determination a weight basis cross-section profile of paper web |
| 03/27/2001 | US6207015 Process for recovering raw materials from paper industry mechanical waste sludge |
| 03/27/2001 | US6205675 Dehydration machine |