Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21F - Paper-making machines; Methods of producing paper thereon › D21F 1 - Wet end of machines for making continuous webs of paper
Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078)
11/1999
11/10/1999EP0777781B1 A pulp slurry-handling press roll, and twin roll and single roll slurry-handling presses
11/09/1999US5980986 Phase separation apparatus
11/09/1999US5979665 Paper-pulp deinking method and equipment to implement this method
11/04/1999WO1999055965A1 A process for the production of paper
11/04/1999WO1999055964A1 A process for the production of paper
11/04/1999WO1999055962A2 A process for the production of paper
11/04/1999WO1999055958A1 Method and device for heating a band of fibrous material
11/04/1999DE19819330A1 Drallbrecher Swirl breaker
11/04/1999CA2293300A1 Method and device for heating a band of fibrous material
11/03/1999EP0953677A2 Apparatus for removing rotating flows
11/03/1999EP0873448B1 Security paper
11/03/1999CN1234083A Stock feed system for a multi-layer headbox, and method in operation of multi-layer headbox
11/02/1999US5976621 Phase separation apparatus
11/02/1999US5975149 Multilayer press fabric including long floats of high temperature MD yarns in the paper support layer
11/02/1999US5975148 Papermakers fabric with stacked machine direction yarns forming outer floats and inner knuckles
11/02/1999US5974684 Suction device
10/1999
10/28/1999WO1999054543A1 Flotation module for pressurized deinking
10/28/1999WO1999054520A1 Parts of a paper/board or finishing machine that are subjected to intensive wear and method for manufacture of such parts
10/28/1999DE19817857A1 Turbulence generator in the stock inlet of a papermaking or cardboard production machine
10/28/1999CA2329907A1 Flotation module for pressurized deinking
10/27/1999EP0951601A1 Separator for a multilayer headbox
10/27/1999EP0951600A1 Separator in a multilayer headbox
10/27/1999CN1233303A Under felt inclined flat former to produce multilayer or monolayer sheet of paper
10/26/1999US5972813 Textured impermeable papermaking belt, process of making, and process of making paper therewith
10/26/1999US5972170 Suction box
10/21/1999WO1999053137A1 Method of determining a volumetric percentage of air in a fiber suspension in a paper-making machine
10/21/1999WO1999053135A1 Multilayer papermaking fabric
10/21/1999WO1999053134A1 Underwire water weight turbulence sensor
10/21/1999WO1999053125A1 Fabric and seam construction
10/21/1999WO1999038101A9 Paper stock shear and formation control
10/21/1999DE29823639U1 Papermaking stock inlet jet structure
10/21/1999DE19817050A1 Siebgewebe Screen mesh
10/21/1999CA2327794A1 Fabric and seam construction
10/21/1999CA2291625A1 Method of determining a volumetric percentage of air in a fiber suspension in a paper-making machine
10/20/1999EP0950739A2 Screen-cloth
10/20/1999CN1045803C Press fabrics for paper machines
10/20/1999CN1045799C Papermaker's forming fabric
10/19/1999US5968319 Dual external suction boxes for suction roll for a paper machine
10/19/1999US5968317 Method for arranging water circulation in a paper mill
10/19/1999US5968315 Process and apparatus for screening a fibre suspension in a pressurized screen having a rotating screen-drum
10/19/1999US5967195 Multi-layer forming fabric with stitching yarn pairs integrated into papermaking surface
10/19/1999CA2167292C System for overall control of the different transverse profiles in a paper web manufactured by means of a machine for the manufacture of a web material, such as a board or paper machine and/or a finishing machine
10/17/1999CA2269183A1 Process and device for the transfer of a fibrous material web
10/14/1999WO1999051814A1 Papermaking belt providing improved drying efficiency for cellulosic fibrous structures
10/14/1999DE19823053C1 Hand-operated sludge removal pump for garden ponds
10/14/1999DE19802493C1 Verfahren zur Entfernung von Verunreinigungen aus einer Altpapier-Faserstoffsuspension A process for removing impurities from a paper-pulp suspension
10/14/1999CA2261005A1 Wear resistant design for high temperature papermachine applications
10/13/1999EP0948677A1 Method for producing paper
10/13/1999CN1045648C Synthesizing screen for dryer of papermaking machine
10/12/1999US5965208 Endless belt surface coating of a material containing a particulate filler to promote a release of the paper web; smoothness and adhesion
10/12/1999US5964984 Method and apparatus for working up a sample of liquid
10/12/1999US5964956 Transport belt is cleaned with varying intensity across the transport belt width; papermaking
10/08/1999CA2268508A1 Papermaker's forming fabric
10/07/1999WO1999050499A1 Method and apparatus for drying a fiber web
10/07/1999CA2326743A1 Method and apparatus for drying a fiber web
10/06/1999EP0947626A1 Composite fabric with mutually joined superimposed layers
10/06/1999EP0947623A1 Textile web, method of production and apparatus
10/06/1999EP0946800A1 Improvement of seam integrity in multiple layer/multiple seam press fabrics
10/06/1999EP0801698B1 Multi-region paper structures and apparatus and process for making the same
10/06/1999EP0801697B1 Paper structure having at least three regions, and apparatus and process for making the same
10/06/1999CN1231009A Multilayered paper
10/06/1999CN1230614A Weaving rail belt, its making method and device for realizing the method thereof
10/05/1999US5962860 Apparatus for generating controlled radiation for curing photosensitive resin
10/05/1999US5961784 Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower
10/05/1999US5961735 Method of cleaning papermaking felts with enzymes
10/05/1999US5961432 Forgery preventive sheet and method of manufacturing same
09/1999
09/30/1999DE19905543A1 Regelungssystem für einen Mehrschichtstoffauflauf Control system for a multi-layer headbox
09/30/1999DE19813772A1 Saugvorrichtung Suction device
09/29/1999EP0945545A2 Suction device
09/29/1999EP0944760A1 Laminated industrial conveying fabric with seam and method
09/28/1999US5958190 Cleaning apparatus for cleaning a forming wire
09/28/1999US5958189 Wet part of a paper making machine
09/23/1999DE19811355A1 Dichtungseinrichtung Sealing means
09/22/1999EP0943729A2 Sealing arrangement
09/22/1999EP0943035A1 A process for the production of paper
09/22/1999EP0943033A1 Multi-layer headbox for a paper machine/board machine
09/22/1999EP0775234B1 A process for the production of paper
09/22/1999CN2339603Y Paper pulp sluice valve
09/22/1999CN1229157A Instrument for measuring and controlling wood pulp concentration
09/21/1999US5954097 Papermaking fabric having bilaterally alternating tie yarns
09/16/1999WO1999046443A1 Method of papermaking having zero liquid discharge
09/16/1999WO1999046442A1 Method and apparatus for treatment of fiber suspension containing minerals, such as coated broke, in paper production
09/15/1999EP0941439A1 Flow splitting device for web profile control stock dilution system
09/14/1999USRE36297 Method and apparatus for treating a fiber suspension
09/14/1999US5952394 Compositions and methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems
09/14/1999US5951823 Velocity induced drainage method and unit
09/14/1999US5951822 Apparatus for making granular material
09/10/1999WO1999045194A1 Multi-layer headbox
09/08/1999EP0939843A1 Method and apparatus for the detection of holes and plugged spots
09/08/1999EP0939842A1 A multilayer headbox for a papermaking machine
09/08/1999EP0772711B1 Paper-making machine headbox
09/08/1999CN1228130A Seam design for dryer fabric
09/07/1999US5946766 Cleaning belt for an industrial belt
09/07/1999CA2191309C Multiple layer papermaking belt providing improved fiber support for cellulosic fibrous structures, and cellulosic fibrous structures produced thereby
09/07/1999CA2177920C Method and apparatus for lateral alignment of the cross-direction quality profile of a web in a paper machine
09/07/1999CA2127156C Method in the regulation of a multi-layer headbox and a multi-layer headbox
09/01/1999EP0835342B1 Method for prolonging the life of a press felt
08/1999
08/31/1999US5945357 Multi-layer press fabric comprising looped, knit yarns woven in an upper layer of fabric
08/31/1999US5944955 Fast basis weight control for papermaking machine
08/31/1999US5944062 Papermaking fabric with mutually contacting paired weft threads
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