| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 05/27/1994 | CA2109911A1 Method and device for evening out the basic weight cross section by sectioning the screen circuit |
| 05/26/1994 | WO1994011577A1 A method of producing visible, continuous streaks and/or delimited fields in paper |
| 05/26/1994 | WO1994011572A1 Process and device for adjusting the stock supply cross-section at a paper machine head box |
| 05/26/1994 | CA2149042A1 A method of producing visible, continuous streaks and/or delimited fields in paper |
| 05/26/1994 | CA2109866A1 Pitch reduction on paper machine surfaces |
| 05/25/1994 | CN1024696C Process and equipment for white-water separation in paper making |
| 05/24/1994 | US5314585 Low shear Uhle box |
| 05/19/1994 | DE4238508A1 Roller with roughened surface - has adhesive layer for fine grain hard materials to be embedded before the adhesive hardens to give longer working life |
| 05/19/1994 | DE4238507A1 Surfaced rollers for paper - has ultra hard particles embedded in layer of resin glue |
| 05/19/1994 | DE4238336A1 Used paper suspension cleaning process and appts. - has thickener or washer for sludge from flotation unit to be returned to the flotation stage |
| 05/18/1994 | EP0597494A1 Drawing-in gripper for the insertion of the auxiliary weft threads in the seam-shed of a seam-weaving loom |
| 05/18/1994 | EP0597493A1 Seam-weaving machine for making endless a synthetic fabric with a Jacquard-machine which is put under the shed |
| 05/17/1994 | US5312523 Assembly for heat treating of an endless wire or felt |
| 05/17/1994 | CA1329502C Pintle wire for a seam in a papermaker's fabric |
| 05/14/1994 | CA2102846A1 Draw-through gripper for the insertion of an auxiliary weft thread into the seam-weaving shed in a seam-weaving machine |
| 05/13/1994 | CA2102842A1 Seam-weaving machine for the production of a continuous plastics woven fabric with a jacquard machine arranged underneath the weaving shed |
| 05/11/1994 | WO1994010380A1 Method and device for transverse distribution of a flowing medium |
| 05/11/1994 | WO1994010379A1 Splicing for fluoropolymer coated belts |
| 05/11/1994 | DE4241076A1 Paper machine - has automatic control for the provision of a suspension to the machine |
| 05/11/1994 | CN1086565A Stairs diffuser for head box and pulp feeding system and its machining method |
| 05/11/1994 | CA2146440A1 Splicing for fluoropolymer coated belts |
| 05/10/1994 | US5310459 Apparatus and method for deinking waste paper pulp |
| 05/10/1994 | CA1329383C Screen plates |
| 05/06/1994 | CA2102567A1 Method of homogenizing the constitution of a web of paper |
| 05/06/1994 | CA2102374A1 Method of making paper |
| 05/06/1994 | CA2102373A1 Paper machine headbox with adjustable lower lip |
| 05/04/1994 | EP0595325A1 End portion flow rate regulating apparatus for a paper machine headbox |
| 05/04/1994 | EP0594617A1 Multi-plane dewatering fabric |
| 05/04/1994 | EP0489738B1 Method and apparatus for treating fiber suspension |
| 05/03/1994 | CA1329031C Method of seaming a seamed felt on a papermaking machine |
| 04/26/1994 | US5307070 Method for resolving ambiguity in the determination of antenna angle of view and Doppler frequency in synthetic aperture radar |
| 04/26/1994 | US5306552 Magnetic position marker |
| 04/26/1994 | US5306394 Turbulence roll for a web former |
| 04/20/1994 | EP0592651A1 Headbox arrangement for a paper machine |
| 04/19/1994 | US5304285 Stock-inlet for papermaking machine |
| 04/14/1994 | WO1994008088A1 New method of liquor removal from particulate solids |
| 04/14/1994 | CA2146241A1 New method of liquor removal from particulate solids |
| 04/13/1994 | EP0591435A1 Cellulosic fibrous structures having at least three regions distinguished by intensive properties, an apparatus for and a method of making such cellulosic fibrous structures. |
| 04/13/1994 | EP0591321A1 Fibrous stock forming unit |
| 04/13/1994 | EP0537142B1 Method and apparatus for manufacturing multilayer filter material |
| 04/13/1994 | EP0537141B1 Turbulence roll for a web former |
| 04/12/1994 | US5302250 Paper machine deckle flushing fountain |
| 04/06/1994 | EP0590288A1 Multi-layer pressfabric for the wetpress of a paper machine |
| 04/05/1994 | US5300194 Pitch control |
| 04/05/1994 | US5300193 Method for paper machine stock pond consistency control |
| 03/30/1994 | EP0588803A1 Bearer for the screen or felt of a paper or cardboard machine, process for making it and its use. |
| 03/29/1994 | US5298127 Paper machine deckle support and flushing means |
| 03/29/1994 | US5298126 Headbox for a paper-making machine |
| 03/29/1994 | US5298125 Fluid jet supported headbox |
| 03/27/1994 | CA2106362A1 Multilayered press screen for wet presses of a paper machine |
| 03/22/1994 | US5296152 Apparatus for filtering suspensions and a method of operating the apparatus |
| 03/22/1994 | US5296143 Apparatus for filtering liquids |
| 03/22/1994 | US5296101 Paper machine deckle structure with a c-clip support beam |
| 03/22/1994 | US5296098 Method and device for separating a fibre suspension |
| 03/17/1994 | WO1994005852A1 Method and apparatus for treating pulp |
| 03/17/1994 | WO1994005595A1 Aqueous suspensions of colloidal particles, preparation and use of the suspensions |
| 03/17/1994 | DE4330546A1 Double fourdrinier papermaking machine - has at least one water extraction bar with setting units across paper width to adjust pressure to set paper weight profile |
| 03/17/1994 | DE4238885A1 Papermaking water extraction - has at least one bar with structured adjustments across machine width to set paper weight profile |
| 03/17/1994 | DE4230921A1 Double fourdrinier papermaking machine - has fixed and pliable bar at water extraction zone to give adjustable pressure impact for improved paper quality |
| 03/17/1994 | CA2106392A1 Double wire former with flexible dewatering slats |
| 03/17/1994 | CA2106355A1 Double wire former with locally adjustable dewatering slat |
| 03/16/1994 | EP0475976B1 Pressurized forming board |
| 03/15/1994 | CA2062957C Method and apparatus for treating fibre suspension |
| 03/15/1994 | CA1327742C Papermaking fabric |
| 03/10/1994 | DE4229828A1 Woven compound fourdrinier - has definition layer with mechanical stretch and stiffness of compound material with definition layer of higher stretch and lower stiffness |
| 03/08/1994 | CA1327471C Pasty mix feed device |
| 03/08/1994 | CA1327470C Cross-directional distribution of additives in synthetic papers |
| 03/03/1994 | WO1994004749A1 A multi-ply web forming apparatus |
| 03/03/1994 | WO1994004748A1 Forming web |
| 03/03/1994 | WO1994004746A1 Dewatering arrangement |
| 03/03/1994 | DE4336271A1 Papermaking web blower system - has a barrier in front of jets to fill the space between the web and blower system. |
| 03/03/1994 | DE4335304A1 Double fourdrinier papermaking machine - has controlled water content in suction boxes at the water extraction stage to keep the fourdriniers wet. |
| 02/24/1994 | DE4227895A1 Keeping paper machine screens clean and free from deposits - by spraying the returning empty screen with water contg. a high-mol. wt. cationic polyelectrolyte. |
| 02/16/1994 | EP0582950A1 Fibre reinforced plastic roll with a wear-resistant outer plastic layer containing filler agents |
| 02/15/1994 | US5286946 Method and apparatus for securing an end of a headbox flow tube |
| 02/08/1994 | US5284551 Paper machine deckle blade construction |
| 02/02/1994 | EP0581414A1 Anti-counterfeit latent image formation object for bills, credit cards, etc. and method for making the same |
| 02/02/1994 | EP0581051A1 Multi-layer headbox for a papermaking machine or the like |
| 02/01/1994 | CA2101111A1 Multilayer head box for a paper machine or similar |
| 02/01/1994 | CA1326609C Dewatering medium for forming of paper sheets |
| 02/01/1994 | CA1326608C Press apparatus |
| 02/01/1994 | CA1326593C Device for measuring the deflection of elongate components |
| 01/26/1994 | EP0580478A1 Asymmetrical papermakers fabric and papermaking device using such a fabric |
| 01/26/1994 | EP0580363A1 Security paper |
| 01/26/1994 | EP0580087A1 Process for reusing waste paper |
| 01/26/1994 | EP0579818A1 Multi-ply papermaking fabric |
| 01/26/1994 | EP0521966B1 Hydraulic supporting device |
| 01/25/1994 | US5281343 System uses hydraulic pressure along with vacuum to induce flow of filtrate from vessel into filtrate conduits |
| 01/25/1994 | US5280861 For storing and handling a cable |
| 01/25/1994 | CA2100914A1 Security paper |
| 01/24/1994 | CA2101225A1 Wastepaper treatment method |
| 01/20/1994 | WO1994001291A1 A banknote and a method for the manufacture of banknotes, which are provided with a fibre-thinned region and a reinforcement region forming an optical window |
| 01/19/1994 | EP0578678A1 Papermachine clothing |
| 01/19/1994 | CN2153574Y Steady flow degassing device of pulp feeding system |
| 01/19/1994 | CN2153573Y Double function high efficient pulp sand remover |
| 01/18/1994 | US5279424 Floatation apparatus for removal of distrubing substances, especially printing ink from waste paper suspensions |
| 01/18/1994 | CA1326317C Method of controlling microbiological deposits on paper making equipment and paper obtained thereby |
| 01/13/1994 | DE4323263A1 Stock inlet for paper-making machine - has flow-controlled jet feeds across main flow channel section with main flows and turbulence zone, allowing cross=sectional adjustment, etc. |
| 01/11/1994 | US5277967 Multilayer fabrics |
| 01/11/1994 | US5277765 Headbox with a vertical partition between perforated rolls |