| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 04/15/1993 | WO1993007335A1 A headbox tube bank apparatus |
| 04/14/1993 | EP0536899A2 Shedding system |
| 04/14/1993 | EP0536320A1 Papermaking belt and method of making the same using differential light transmission techniques. |
| 04/14/1993 | EP0536281A1 Papermaking belt and method of making the same using a textured casting surface. |
| 04/14/1993 | EP0536263A1 Papermaking belt and method of making the same using a deformable casting surface. |
| 04/13/1993 | US5202000 Saveall apparatus for a twin-wire former |
| 04/13/1993 | CA1316077C Double-layer clothing for the sheet-forming section of a papermaking machine |
| 04/13/1993 | CA1316030C Seam construction for papermaking fabrics |
| 04/08/1993 | DE4237310A1 Paper-making stock inlet - has setting vanes in at least one chamber to modify the flow line for fibre orientation |
| 04/08/1993 | DE4237308A1 Paper-making stock inlet - has a membrane in hollow zone to form another zone filled with dampening medium to suppress pulsation |
| 04/08/1993 | DE4237307A1 Paper machine - in which outflow from the head-box is regulated to prevent distortion of the fibrous suspension |
| 04/08/1993 | DE4237305A1 Paper-making stock inlet - has parallel channels to generate micro-turbulence with hollow zones of different cross=sections in variable geometry |
| 04/08/1993 | DE4237303A1 Pulsation damping of pulp currents - in paper machine breast box, without using costly devices |
| 04/07/1993 | EP0536003A1 Papermaking headbox having extended divider sheet |
| 04/07/1993 | CN1020235C Roll |
| 04/06/1993 | US5199467 Papermakers fabric with stacked machine direction yarns |
| 04/06/1993 | CA1315579C Stock-inlet |
| 04/01/1993 | WO1993006299A1 An arrangement and a method for concentrating a suspension |
| 04/01/1993 | CA2120010A1 An arrangement and a method for concentrating a suspension |
| 03/24/1993 | EP0532510A1 Papermakers fabric with flat machine direction yarns. |
| 03/23/1993 | US5196091 Headbox apparatus with stock dilution conduits for basis weight control |
| 03/23/1993 | US5196090 Method for recovering pulp solids from whitewater using a siphon |
| 03/21/1993 | CA2057674A1 Papermaking headbox having extended divider sheet |
| 03/18/1993 | WO1993004784A1 Improved apparatus and method for deinking waste paper pulp |
| 03/18/1993 | CA2117071A1 Improved apparatus and method for deinking waste paper pulp |
| 03/10/1993 | EP0489094B1 Twin-wire paper-web former |
| 03/04/1993 | WO1993004234A1 Device for dewatering a pulp suspension |
| 03/04/1993 | WO1993004233A1 Liquid removal apparatus and method for wood pulp |
| 03/04/1993 | CA2114130A1 Device for dewatering a pulp suspension |
| 03/03/1993 | EP0529174A1 Fluid jet supported headbox |
| 03/03/1993 | EP0528852A1 Woven fabric made of synthetic monofilaments for use as a dewatering screen in a paper-manufacturing machine. |
| 03/02/1993 | CA1313965C Multi-ply web forming apparatus and method |
| 03/02/1993 | CA1313964C Apparatus for forming a web |
| 02/25/1993 | DE4127677A1 Paper-making blanket end preparation - has separator to transfer individual wefts to gripper roller for extn. leaving warps as end fringe for weaving together as continuous blanket |
| 02/23/1993 | US5188884 Woven papermaking fabric having low profile seam |
| 02/23/1993 | CA1313728C Apparatus for cleaning a porous cover |
| 02/18/1993 | WO1993003221A1 Non-marking wear resistant double layer fabrics |
| 02/18/1993 | DE4234940A1 Controlling density of slurry at paper machine head-box - using devices to regulate the amt. of fibre in suspension before being deposited on the wire |
| 02/18/1993 | DE4127164A1 Corrugated paper machine giving reduced wear and noise - in which belting takes load on middle section which has top and bottom woven overlay |
| 02/16/1993 | US5186791 Apparatus for thickening pulp and paper stock |
| 02/10/1993 | EP0526592A1 Paper machine for the manufacture of high bulk soft crepe paper. |
| 02/10/1993 | CN1068863A Method and apparatus for making cellulosic fibrous structures by selectively obturated drainage and cellulosic fibrous structures produced thereby |
| 02/09/1993 | US5185064 Means for controlling wires in a paper machine or cardboard machine |
| 02/09/1993 | CA1313472C Method and apparatus for dewatering and squeezing material |
| 02/04/1993 | DE4125513A1 Fibre suspension mixing - introduces thick suspension into centre of thin suspension flow at a faster speed with turbulence |
| 02/03/1993 | EP0526259A1 Extended flexible headbox slice |
| 02/03/1993 | EP0525152A1 Improvements in and relating to paper machine clothing. |
| 02/02/1993 | US5183537 Headbox tube bank apparatus and method of directing flow therethrough |
| 02/02/1993 | US5183442 Double helix, method of making same and spiral link belt made therefrom |
| 02/02/1993 | US5183081 Weave shed formation apparatus for end reweaving type joining apparatus |
| 02/02/1993 | CA2074998A1 Shoe press for the dewatering of a fiber web |
| 02/02/1993 | CA1313341C Papermachine clothing |
| 02/02/1993 | CA1313323C Braided yarns for oms loops |
| 02/02/1993 | CA1313322C Headbox |
| 01/27/1993 | EP0524739A1 Improvements to papermakers and like fabrics |
| 01/27/1993 | EP0524478A1 Spiral fabric |
| 01/27/1993 | EP0524251A1 Process for chemically treating papermaking belts |
| 01/21/1993 | WO1993001350A1 Multi-plane dewatering fabric |
| 01/21/1993 | DE4124196A1 Control of fibre orientation on wire of paper-making machine - by inducing flow pattern variations in region between feed and suction box |
| 01/21/1993 | CA2112124A1 Multi-plane dewatering fabric |
| 01/20/1993 | EP0523214A1 Headbox. |
| 01/20/1993 | EP0377655B1 Roll |
| 01/14/1993 | DE4229184A1 Paper-making wet pulp section - has drive to give reciprocating sliding movement to a lateral unit, to maintain paper thickness |
| 01/14/1993 | CA2072486A1 Papermakers and like fabrics |
| 01/13/1993 | EP0522093A1 Method and device for cleaning an endless wire cloth on a papermaking machine |
| 01/13/1993 | EP0521966A1 Hydraulic supporting device. |
| 01/13/1993 | CA2073717A1 Equipment for the elimination of light particles, inks and air from a fiber suspension for the manufacture of paper |
| 01/12/1993 | CA1312530C Double-layer clothing for the sheet forming section of a papermaking machine |
| 01/12/1993 | CA1312492C Paper making felts |
| 01/12/1993 | CA1312491C Apparatus for controlling a moving band such as a wire or the like |
| 01/12/1993 | CA1312490C Cloth for a paper machine |
| 01/12/1993 | CA1312489C Double layered wire or fabric for papermaking machines |
| 01/12/1993 | CA1312488C Dispersion roll for fourdrinier machine |
| 01/07/1993 | WO1993000475A1 Cellulosic fibrous structures having at least three regions distinguished by intensive properties, an apparatus for and a method of making such cellulosic fibrous structures |
| 01/07/1993 | WO1993000474A1 Method and apparatus for making cellulosic fibrous structures by selectively obturated drainage and cellulosic fibrous structures produced thereby |
| 01/07/1993 | WO1993000473A1 A foil for the wire section in a paper making machine |
| 01/07/1993 | WO1993000472A1 Multilayer forming fabric |
| 01/07/1993 | WO1993000471A1 Fibrous stock forming unit |
| 01/07/1993 | CA2111102A1 A foil for the wire section in a pipe making machine |
| 01/05/1993 | US5176822 Flotation machine for deinking |
| 12/30/1992 | EP0520970A1 Twin-wire former in a paper machine |
| 12/29/1992 | CA1312152C Pressurized flotation module and method for pressurized foam separation |
| 12/27/1992 | CA2072276A1 Multilayer forming fabric |
| 12/23/1992 | EP0519398A1 Control and analysis device |
| 12/23/1992 | CN2125606U Spoke support outer net type cylinder mould |
| 12/22/1992 | US5172600 Linear weight actuator |
| 12/22/1992 | CA2051544A1 Extended flexible headbox slice |
| 12/17/1992 | DE4218174A1 Fluid extraction equipment |
| 12/17/1992 | DE4119441A1 Paper making blanket - is composed of hollow monofilaments with pressure sealed inner gas volumes to absorb or eliminate vibration at the web |
| 12/15/1992 | CA1311400C Low stretch papermakers fabric |
| 12/10/1992 | DE4118412A1 Appts. to convert cut paper side strips to pulp - feeds diluting liq. into suction channel between cutter and collection vessel |
| 12/09/1992 | EP0516918A1 Dryer fabric |
| 12/08/1992 | US5170357 Paper machine controller for operating slices and method of controlling the same |
| 12/08/1992 | US5169711 From yarns that are a blend of polyethylene terephthalate and a thermoplastic polyester- or polyetherurethane; optionally, a hydrolysis stabilizer; high abrasion resistance |
| 12/08/1992 | US5169709 Preselected permeability factor and increased weft wise stiffness; maintaining constant weft count |
| 12/08/1992 | US5169570 Jointing of fabric ends |
| 12/08/1992 | US5169500 Adjustable angle foil for paper making machine with rigid foil body and cam actuation means |
| 12/08/1992 | US5169499 Paper machine felts of a copolymer of 1,4-dimethylolcyclohexane, terephthalic acid, and isophthalic acid |
| 12/02/1992 | EP0516601A1 Wire loading device in a paper machine |
| 12/02/1992 | EP0515530A1 Apparatus for filtering liquids. |