| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 12/04/1997 | CA2253831A1 A method and board machine for manufacturing a paperboard web |
| 12/03/1997 | EP0809731A1 Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor |
| 12/03/1997 | EP0741815B1 Industrial fabric |
| 12/03/1997 | EP0683831B1 A method to separate cellulose based fibers from each other in water |
| 12/02/1997 | US5693187 High absorbance/low reflectance felts with a pattern layer |
| 12/02/1997 | US5692938 Polyester fiber with improved abrasion resistance |
| 11/27/1997 | WO1997044523A1 Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower as well as a cooling tower |
| 11/27/1997 | WO1997044522A1 Method for arrangement of the water circulation in a paper mill |
| 11/27/1997 | WO1997044521A1 Method in a paper machine for arrangement of its water circulation |
| 11/27/1997 | WO1997044519A1 Compositions and methods for inhibiting deposits in pulp and papermaking systems |
| 11/27/1997 | CA2255931A1 Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower as well as a cooling tower |
| 11/27/1997 | CA2255796A1 Method for arrangement of the water circulation in a paper mill |
| 11/26/1997 | EP0708858B1 Drier section of a paper machine |
| 11/25/1997 | US5690792 Set of ribs in a dewatering device in a paper machine |
| 11/25/1997 | US5690149 Papermakers fabric with stacked machine direction yarns |
| 11/25/1997 | CA2206023A1 Method and headbox for a paper machine |
| 11/25/1997 | CA2060972C Dryer fabric |
| 11/20/1997 | WO1997043484A1 Method and apparatus for making soft tissue |
| 11/20/1997 | CA2252695A1 Method and apparatus for making soft tissue |
| 11/19/1997 | EP0644997B1 Magnetic measuring method and apparatus for determining the size and shape of a slot |
| 11/18/1997 | US5688374 Headbox and manifold system for producing a multi-ply paper web |
| 11/18/1997 | US5688372 Method and device in the regulation of a headbox |
| 11/13/1997 | WO1997042374A1 Pulp and linerboard former with improved dewatering |
| 11/13/1997 | WO1997042373A1 Cleaning device for cleaning a dewatering screen in a wet or dry section or a wet felt in a press section of a paper making machine |
| 11/12/1997 | EP0806519A1 Low air permeability papermaking fabric |
| 11/12/1997 | EP0805895A1 Laminated clothing, as well as method and blank for manufacturing the same |
| 11/12/1997 | EP0805891A1 Method of apparatus for cleaning of fabrics, particularly fabrics of a paper machine |
| 11/12/1997 | CN1164878A Method to reduce forming fabric edge curl |
| 11/12/1997 | CN1164467A Method for forming rollers, particularly rollers for embossing paper webs |
| 11/11/1997 | CA2155223C Papermaking fabric |
| 11/11/1997 | CA2155222C Process for making absorbent paper web |
| 11/11/1997 | CA2105360C Method and apparatus for securing an end of a headbox flow tube |
| 11/06/1997 | WO1997041304A2 High absorbance/low reflectance felts with a pattern layer |
| 11/06/1997 | WO1997041297A1 Papermakers fabric with stacked machine and cross machine direction yarns |
| 11/06/1997 | CA2219108A1 Papermakers fabric with stacked machine and cross machine direction yarns |
| 11/04/1997 | US5683551 Fixed throttle, controlling velocity in subsidary stream and main stream |
| 10/30/1997 | DE19710877A1 Very strong stitched seam for paper-making machine cloth sections |
| 10/29/1997 | EP0478762B2 Method and device for separating a fibre suspension |
| 10/28/1997 | US5681430 Activity induction in papermaking |
| 10/28/1997 | US5681251 For use in a headbox of a paper-making machine |
| 10/23/1997 | WO1997039482A1 Methods for manufacturing a semiconductor package |
| 10/23/1997 | WO1997039182A1 Method for overall regulation of the headbox and/or the former of a paper machine or equivalent |
| 10/23/1997 | DE19627523C1 Preparation of filler or pigment coating material for paper, pulp or board from waste sludge |
| 10/22/1997 | EP0802281A1 Process and apparatus to keep laterally tight the dewatering zone of a twin-wire paper machine |
| 10/22/1997 | EP0802280A2 Multi-ply industrial fabric having integral jointing structures |
| 10/22/1997 | EP0801989A1 Flotation method and mixing device for carrying it out |
| 10/22/1997 | EP0801698A1 Multi-region paper structures and apparatus and process for making the same |
| 10/22/1997 | EP0801697A1 Paper structure having at least three regions, and apparatus and process for making the same |
| 10/22/1997 | EP0670781B1 Apparatus for cleaning objects in movement |
| 10/21/1997 | US5679222 Paper having improved pinhole characteristics and papermaking belt for making the same |
| 10/19/1997 | CA2203060A1 Method and apparatus for the lateral sealing of a drainage wedge in a twin-wire paper machine |
| 10/16/1997 | WO1997038160A1 A multiplanar single layer forming fabric |
| 10/16/1997 | WO1997038159A1 Papermaking fabric for increasing bulk in the paper sheet |
| 10/16/1997 | DE19621258C1 Papermaking machine stock inlet |
| 10/16/1997 | CA2219322A1 A multiplanar single layer forming fabric |
| 10/16/1997 | CA2219146A1 Papermakers fabric for increasing bulk in the paper sheet |
| 10/15/1997 | EP0800594A1 Multilayer forming fabric |
| 10/07/1997 | US5674364 Method and device in the regulation of a headbox |
| 10/07/1997 | US5674363 Method and device in the regulation of a headbox |
| 10/01/1997 | EP0798416A1 Flotation process and device for separating solid particles of a paper fibre suspension |
| 10/01/1997 | EP0798106A1 Method for forming rollers, particularly embossing rollers for paper webs |
| 10/01/1997 | EP0797502A1 Dewatering apparatus |
| 09/30/1997 | US5672248 Method of making soft tissue products |
| 09/26/1997 | CA2201018A1 Method for forming rollers, particularly embossing rollers for paper webs |
| 09/25/1997 | WO1997035066A1 Dewatering device for a paper machine |
| 09/25/1997 | WO1997035065A1 Stitched seam for high-tensile woven fabrics |
| 09/25/1997 | WO1997035064A1 Reinforced stitched seam for high-tensile woven fabrics |
| 09/25/1997 | DE19710850A1 Seam connection for wire cloths in paper machines |
| 09/25/1997 | DE19610949A1 Roller made of plastic or carbon reinforced with fibres |
| 09/25/1997 | DE19548302A1 Simple compact jet device acting as paper machine cutter and cleaner |
| 09/25/1997 | CA2249436A1 Stitched seam for high-tensile woven fabrics |
| 09/25/1997 | CA2249435A1 Reinforced stitched seam for high-tensile woven fabrics |
| 09/18/1997 | WO1997034048A1 Forgery preventive sheet and method of manufacturing same |
| 09/17/1997 | EP0795055A1 Papermaker's fabric containing fibers with fins having a reduced cross-sectional area within the fin |
| 09/17/1997 | EP0591435B1 Cellulosic fibrous structures having at least three regions distinguished by intensive properties, an apparatus for and a method of making such cellulosic fibrous structures |
| 09/16/1997 | US5667642 Pulp slurry-handling press roll and twin and single roll slurry handling presses |
| 09/16/1997 | US5667636 Paper towel, tissues, transferring wet web from forming fabric to transfer fabric traveling at slower speed |
| 09/16/1997 | US5666740 In a paper/board machine |
| 09/12/1997 | WO1997033038A1 An arrangement for feeding stock to a headbox in a papermaking machine |
| 09/12/1997 | WO1997033037A1 Papermakers' forming fabric and process for producing paper using the same |
| 09/10/1997 | EP0794283A1 Composite papermaking fabric with paired weft binder yarns |
| 09/10/1997 | EP0793750A1 Apparatus and process for screening a fibre suspension and process for producing paper utilizing the same |
| 09/10/1997 | CN2262043Y Vibrative sieve for paper pulp purification |
| 09/09/1997 | US5664731 Decontamination valve for a jet pipe in a paper or board machine |
| 09/04/1997 | WO1997032081A1 Papermaking fabric, process for producing high bulk products and the products produced thereby |
| 09/04/1997 | WO1997032079A1 Improved recovery of fine fibers from suspensions containing fibers and contaminants |
| 09/04/1997 | CA2247032A1 Improved recovery of fine fibers from suspensions containing fibers and contaminants |
| 09/04/1997 | CA2218156A1 Papermaking fabric, process for producing high bulk products and the products produced thereby |
| 09/03/1997 | EP0792830A2 Guiding device with rollers |
| 09/03/1997 | EP0792397A1 Method for dewatering in paper manufacture |
| 09/03/1997 | EP0792396A1 Procedure and apparatus for the drainage of the wire and/or press section of a paper machine or equivalent |
| 09/03/1997 | EP0614501B1 Fabric for papermaking machines and the like |
| 09/02/1997 | US5662270 Contaminant resistant straight line motion shower pipe assembly |
| 08/28/1997 | WO1997030604A1 Tobacco conveyor belt |
| 08/27/1997 | EP0791103A1 Method of papermaking having zero liquid discharge |
| 08/27/1997 | EP0791102A1 Apparatus for cleaning papermachine clothing |
| 08/26/1997 | US5660718 Method and apparatus for separation by flotation |
| 08/26/1997 | US5660689 Apparatus for adjusting the height and/or angular position of a strip associated with the screen belt of a paper producing system |
| 08/26/1997 | US5660688 Method and device for washing a wire of a paper or board machine |
| 08/21/1997 | WO1997030213A1 Vacuum isolated dewatering method and unit |