| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 03/23/1989 | DE3733448A1 Rotary stretcher |
| 03/22/1989 | CN2034595U Vacuum water absorbent box |
| 03/21/1989 | US4813156 Papermachine and like fabrics |
| 03/15/1989 | EP0306759A1 Means for controlling wires in a paper machine or cardboard machine |
| 03/14/1989 | US4812209 Wedge-shaped partition divides nozzle chamber for two flow channels; for paper machines |
| 03/14/1989 | US4812208 Headbox for paper machine with parallel twisted plates |
| 03/14/1989 | CA1251124A1 Procedure to bond a layer of permeable material to a base fabric made of interlaced yarns; and felts for paper machines and filter fabrics manufactured accordingly |
| 03/14/1989 | CA1251081A1 Roller for machines in the paper-making industry or similar |
| 03/09/1989 | DE3728445A1 Sheet-forming wire for paper machines and method for its production |
| 03/08/1989 | EP0305659A1 Process for regulating specific dispersion power |
| 03/01/1989 | CN2033407U Sort of former of adhesive-bonded fabric |
| 02/28/1989 | US4808266 Dripping, pressing, evaporation with gas flow while on single porous support |
| 02/28/1989 | CA1250478A1 Apparatus for uniformly dispersing paper raw material |
| 02/28/1989 | CA1250424A1 Method of and a device for drying a paper web or the like |
| 02/23/1989 | WO1989001572A1 Roll |
| 02/22/1989 | EP0303799A1 Unbalanced oscillating mechanism |
| 02/22/1989 | EP0303798A2 Web, in particular a paper machine felt, dryer tissue, filter tissue or the like |
| 02/22/1989 | EP0303592A1 Dryer felt run |
| 02/21/1989 | US4806208 Intermeshing fabric loops, uniformity, wear resistance |
| 02/14/1989 | US4804441 Dividing the pulp suspension flow into two or more parallel approach pipes having velocity-controlling switches |
| 02/09/1989 | DE3724822A1 Separator for the separation of threads held in a string |
| 02/08/1989 | EP0302166A1 Process for separating fillers from paper mill water circuits by flotation |
| 02/07/1989 | US4802955 Dewatering band press side seals |
| 02/07/1989 | US4802954 Forming board for papermaking machine |
| 02/07/1989 | CA1249763A1 Forming fabric of double-layer type |
| 02/01/1989 | EP0301174A1 Separating device for segregating filaments kept in side-by-side arrangement |
| 02/01/1989 | EP0301024A1 Dewatering press. |
| 01/31/1989 | CA1249470A1 Electromagnetic extended nip press |
| 01/26/1989 | WO1989000624A1 Method and apparatus for controlling the production of refined stock |
| 01/25/1989 | EP0300288A1 Trailing member for a papermaking machine headbox |
| 01/24/1989 | US4799998 Papermachine clothing |
| 01/24/1989 | US4799318 Arrangement in the drying section of a paper machine |
| 01/24/1989 | CA1249204A1 Universal rincing apparatus, particularly for the paper making industry, belt conveyors and the like |
| 01/24/1989 | CA1249157A1 Paper layer forming apparatus |
| 01/18/1989 | EP0299926A1 Headbox with a mechanism for modifying the fibrous slurry turbulence |
| 01/18/1989 | EP0298993A1 A turbulence generator for the head box of a paper machine. |
| 01/17/1989 | CA1248799A1 Abrasion and hydrolysis resistant joining wire and coil material for fabric seams |
| 01/17/1989 | CA1248798A1 Paper stock diffuser system |
| 01/11/1989 | CN2030619U Cylinder-cylinderless groove former |
| 01/10/1989 | US4796749 Spiral link belt with composite helices |
| 01/10/1989 | US4796452 Setting device for adjusting the position of a roll |
| 01/10/1989 | US4796342 Press roll for paper making machines |
| 01/05/1989 | DE3800801A1 Stationary support device |
| 01/03/1989 | US4795560 Screen plates |
| 01/03/1989 | US4795480 Plastic, fiber reinforced resinous matrix surface |
| 01/03/1989 | CA1247908A1 Apparatus for liquid treatment of pulp |
| 01/03/1989 | CA1247857A1 Sealing device in a cylinder drier |
| 01/03/1989 | CA1247856A1 Method and device for preventing cross direction web shrinkage in the drying section of a paper machine |
| 12/28/1988 | EP0211834B1 Aeration installation |
| 12/28/1988 | CA1247428A Deflection member |
| 12/27/1988 | US4794036 Stainproof woven fabric for paper making and method for making the same |
| 12/27/1988 | US4793250 Method and apparatus for controlling deflection of an adjustable crown roll |
| 12/27/1988 | US4793161 Pulp treating apparatus |
| 12/22/1988 | DE3802298A1 Verfahren und vorrichtung zum verbessern der homogenitaet der faserverteilung beim maschinellen herstellen einer faserstoffbahn Method and apparatus for improving the homogeneity of the fiber distribution in the machine producing a fibrous web |
| 12/21/1988 | EP0296135A2 Hydrid former for a paper machine |
| 12/21/1988 | EP0295239A1 Disk screen improvement for chip screening efficiency. |
| 12/20/1988 | US4792380 Having interior adjusting screws, exterior locking screws |
| 12/20/1988 | US4792164 Rotary joint for stationary siphon |
| 12/20/1988 | US4791708 Abrasion and hydrolysis resistant joining means for fabric seams |
| 12/15/1988 | WO1988009844A1 Process for improving the homogeneity of the distribution during production of a fibrous web from a suspension of fibrous materials |
| 12/13/1988 | US4791305 Method for measuring the properties of a composition consisting of a liquid and solid particles and apparatus used in the method |
| 12/13/1988 | US4790908 Monitoring belt position; providing signals; altering traveling path |
| 12/06/1988 | US4789433 Inclined surface for vacuum dewatering |
| 12/06/1988 | US4789009 Sixteen harness dual layer weave |
| 12/06/1988 | CA1246193A1 Electro-mechanial shower oscillator for papermaking machine |
| 12/01/1988 | DE3715554A1 Paper-making stock inlet - is divided to form stronger web edges to prevent flutter |
| 12/01/1988 | DE3715551A1 Mfr. of paper with less flutter - by forming stronger edges to the web to prevent flutter |
| 12/01/1988 | DE3546629C2 Device for guiding the wires of a twin-wire section of a paper- or cardboard-machine |
| 11/30/1988 | EP0293350A2 Filter for concentrating suspensions |
| 11/30/1988 | EP0293179A1 Improvements in a process and apparatus for forming particulate layers |
| 11/30/1988 | EP0292700A1 Spiral fabric |
| 11/22/1988 | US4786554 Dryer fabric having warp strands made of melt-extrudable polyphenylene sulphide |
| 11/22/1988 | CA1245089A1 Latency removal |
| 11/17/1988 | WO1988008896A1 A headbox |
| 11/17/1988 | EP0290653A1 Material web |
| 11/15/1988 | US4784764 Arrangement for the flocculation of flocculatable substances in suspensions, particularly for the purification of the backwater of deinking installations for waste paper processing |
| 11/15/1988 | US4784726 Movable slides adjusting peripheral aperture size |
| 11/15/1988 | US4784725 Vat paper machine |
| 11/15/1988 | US4784190 Dryer fabric having longitudinal zones of different permeability |
| 11/15/1988 | CA1244845A1 Curl neutralizer |
| 11/15/1988 | CA1244697A1 Twin wire former |
| 11/15/1988 | CA1244680A1 Rolling apparatus |
| 11/09/1988 | EP0290367A1 An apparatus for selectively moving the slice lip of a headbox |
| 11/09/1988 | EP0289640A1 Seaming machines, especially for seaming dewatering and dry screens, felts and the like |
| 11/08/1988 | US4783241 Movable flow-carrying wall |
| 11/02/1988 | EP0289445A2 Multi-ply web forming apparatus and method |
| 10/26/1988 | EP0287836A1 Two-layer tissue for a paper-making machine |
| 10/25/1988 | US4780188 Apparatus and method for removing liquid from liquid bearing material |
| 10/25/1988 | US4780184 Method for the adjustment of the dewatering in the wire section of a paper machine |
| 10/25/1988 | US4780183 Pressure differential in vacuum compartments; papermaking |
| 10/25/1988 | CA1243528A1 Controlled deflection roll |
| 10/25/1988 | CA1243527A1 Headbox in a paper machine |
| 10/25/1988 | CA1243526A1 Slice lip control |
| 10/20/1988 | DE3711021A1 Composite fabric for the sheet-forming part of a papermachine |
| 10/19/1988 | EP0287297A1 Paper machine felts |
| 10/19/1988 | EP0287276A2 Horizontal twin wire machine |
| 10/19/1988 | EP0287267A2 Cylindrical Screen Plates |
| 10/19/1988 | EP0287229A1 Papermachine clothing |
| 10/18/1988 | CA1243232A1 Flow restraining elements in the headbox of a paper machine |
| 10/13/1988 | DE3710735A1 Headbox for a papermachine or the like |