| Patents for D21D 1 - Methods of beating or refining; Beaters of the hollander type (3,356) |
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| 07/22/1997 | US5650120 Bubble-operated recirculating pump for metal bath |
| 07/09/1997 | EP0597860B1 Beating apparatus for fibre suspensions |
| 07/08/1997 | US5645690 Pressure relief system for treating fibrous materials under pressure |
| 07/03/1997 | WO1997023291A1 Refining element |
| 07/02/1997 | CN2257301Y Sealed steam cooking device |
| 06/18/1997 | EP0779391A1 Method for milling paper fibres |
| 06/17/1997 | US5639419 Bubble operated dross diluting pump for a steel treating bath |
| 06/17/1997 | CA2192728A1 Process and device for beating paper fiber material |
| 06/10/1997 | US5636849 Translatable bearing stuffing box |
| 06/04/1997 | EP0776248A1 Refining elements |
| 05/28/1997 | EP0775232A1 Low-resident, high-temperature, high-speed chip refining |
| 05/22/1997 | WO1997018037A1 A pair of co-operating refining elements intended for a disc refiner |
| 05/14/1997 | EP0773317A1 Device and machine for the mechanical treatment of high consistency pulp |
| 05/14/1997 | EP0773316A1 Device for treating high consistency pulp |
| 05/14/1997 | CN2254092Y Cutting grinding machine for paper making |
| 05/11/1997 | CA2189902A1 Device and treatment machine for the mechanical treatment of high-consistency fibrous material |
| 05/11/1997 | CA2189901A1 Device and treatment machine for the mechanical treatment of high-consistency fibrous material |
| 05/07/1997 | DE19603548A1 Cheaper milling facings for the paper industry reducing overall costs |
| 05/06/1997 | US5626300 Disc refiner with conical ribbon feeder |
| 05/01/1997 | WO1997015716A1 High consistency pulp refining using low consistency pulp refining techniques |
| 05/01/1997 | CA2232793A1 High consistency pulp refining using low consistency pulp refining techniques |
| 04/29/1997 | US5624616 Heating waste chips under steam and pressure to soften lignin, comminuting, drying |
| 04/23/1997 | EP0769084A1 Arrangement for a continuous diffuser for washing pulp |
| 04/23/1997 | EP0768919A1 Refining element |
| 04/16/1997 | EP0767706A1 Refining element |
| 03/26/1997 | EP0639115B1 Apparatus for refining fiber material |
| 03/26/1997 | CN1146224A Suspension-treating device |
| 03/19/1997 | CN2249765Y Cotton stalk beating and sand removing machine |
| 03/19/1997 | CN2249764Y Vertical pulping and sand moving apparatus |
| 03/19/1997 | CN2249763Y Sand removing conic body of pulping and sand moving machine |
| 03/18/1997 | CA2096591C Controlled intensity high speed double disc refiner |
| 02/25/1997 | US5605290 Apparatus and method for particle size classification and measurement of the number and severity of particle impacts during comminution of wood chips, wood pulp and other materials |
| 02/22/1997 | CA2183700A1 Measuring device for refiners |
| 02/20/1997 | WO1997005940A1 Single roll displacement wash press |
| 02/20/1997 | CA2228845A1 Single roll displacement wash press |
| 02/12/1997 | CN2247190Y Multi-purpose pulp-making machine |
| 02/12/1997 | CN1142858A Apparatus for washing of pulp |
| 02/11/1997 | CA2019712C Method and device for treatment of a fibrous material-fluid mixture |
| 02/05/1997 | EP0756650A1 Suspension-treating device |
| 02/04/1997 | US5599426 Conveying endless belt-supported spray-washed pulp slurry mat over spaced rolls to separate debris and dislodge slurry; recycling wastes |
| 01/29/1997 | EP0755468A1 Preparation process of paper for increasing filler contents and enhancing scott internal bond strength |
| 01/28/1997 | US5597075 Method and apparatus for screening waste paper pulp |
| 01/22/1997 | EP0754259A1 Refiner component |
| 01/07/1997 | US5591336 Apparatus for dewatering and or washing papermaking stock |
| 01/02/1997 | EP0751254A1 Device for controlled dispersion treatment of high consistency pulp |
| 01/01/1997 | CN1139465A Diffuser |
| 12/31/1996 | US5589035 Liquid treatment device |
| 12/27/1996 | WO1996041914A1 Low-resident, high-temperature, high-speed chip refining |
| 12/27/1996 | WO1996041894A1 Bubble apparatus for removing and diluting dross in a steel treating bath |
| 12/27/1996 | EP0749507A1 Refiner disk with alternating depth grooves |
| 12/11/1996 | CN2242261Y High speed double vortex pulp making beater |
| 12/05/1996 | WO1996038228A1 Apparatus and method for particle comminution |
| 12/05/1996 | CA2222114A1 Apparatus and method for particle comminution |
| 12/03/1996 | US5580472 Paper pulp defibering or refining plate and method of manufacturing it |
| 11/26/1996 | CA2060503C Method and device for separating a fibre suspension |
| 11/21/1996 | DE19541892C1 Mechanical treatment of consolidated fibrous material, esp. waste paper |
| 11/20/1996 | EP0742855A1 Apparatus for treating pulp |
| 11/13/1996 | EP0741817A1 Method and apparatus for treating recycled pulp |
| 11/13/1996 | EP0741816A1 Diffuser |
| 11/13/1996 | CN2239979Y Multi-functional vertical biconical dissociation dust remover |
| 11/07/1996 | WO1996035016A1 Disc refiner with conical ribbon feeder |
| 11/07/1996 | CA2219905A1 Disc refiner with conical ribbon feeder |
| 10/30/1996 | CN2238849Y Driving device for beating degritting machine |
| 10/24/1996 | WO1996033309A1 Method for co-refining dry urban wood chips and blends of dry urban wood chips and thermoplastic resins for the production of high quality fiberboard products |
| 10/24/1996 | CA2217874A1 Method for co-refining dry urban wood chips and blends of dry urban wood chips and thermoplastic resins for the production of high quality fiberboard products |
| 10/22/1996 | US5567279 Variable stage pressure diffuser |
| 10/22/1996 | US5567262 Two stage pressure diffuser |
| 10/22/1996 | US5566903 Roller mill for milling suspended fibrous material |
| 10/17/1996 | WO1996029465A3 Method and device for process control in cellulose and paper manufacture |
| 10/16/1996 | EP0737775A2 Disc or disc segment for disc mills |
| 10/15/1996 | US5565110 Drum filter shower roll |
| 10/15/1996 | US5564572 Method and apparatus for screening waste paper pulp |
| 10/15/1996 | CA2047513C Self-cleaning feed apparatus |
| 10/09/1996 | CN2237059Y Sand removing and beating machine |
| 10/08/1996 | CA2052893C Abrasion-resistant plates and method of fabricating same |
| 10/02/1996 | EP0583310B1 Use of cellulase for pulp treatment |
| 10/02/1996 | CN2236501Y Pulp treating apparatus |
| 10/01/1996 | US5560229 Diffuser |
| 09/26/1996 | WO1996029465A2 Method and device for process control in cellulose and paper manufacture |
| 09/26/1996 | DE19510008A1 Verfahren und Vorrichtung zur Prozeßführung bei der Zellstoff- und/oder Papierherstellung Method and apparatus for process control in pulp and / or paper-making |
| 09/26/1996 | CA2215956A1 Method and device for process management in the production of pulp and/or paper |
| 09/25/1996 | CN1131713A Production of high-strength corrugated base paper with straw pulp by neutral ammonium sulfite process |
| 09/11/1996 | EP0731210A2 Refiner and refining tool for refining suspended fibre material |
| 08/07/1996 | CN2232452Y Rotor and stator of refining and degritting machine |
| 07/17/1996 | EP0721526A1 Method and apparatus for dewatering of a fibre suspension |
| 07/11/1996 | DE19500249A1 Making microdenominated cellulose |
| 07/10/1996 | EP0720506A1 Air inflow restrictor for disc filters |
| 07/09/1996 | US5533684 Wood chip strand splitter |
| 07/02/1996 | US5531385 Apparatus and methods for wet grinding |
| 06/20/1996 | WO1996018769A1 Means for treatment of particle mass |
| 06/18/1996 | US5526992 Refining element of a disc refiner |
| 06/18/1996 | CA2021149C Method and apparatus for recycling paper pulp sludge |
| 06/13/1996 | WO1996017996A1 Washing of pulp in a fractionating washing system |
| 06/05/1996 | EP0714465A1 Dual zone refiner with separated discharge flow control |
| 05/28/1996 | US5520344 Apparatus for the comminution of suspended fibre material |
| 05/21/1996 | US5517834 Method and device for treatment of a fibrous material-fluid mixture |
| 05/17/1996 | WO1996014463A1 Apparatus for dewatering or washing papermaking stock |
| 05/17/1996 | WO1996014156A1 System for continuously measuring pressure and temperature in the beating zone of refiners |
| 05/17/1996 | CA2204240A1 System for continuously measuring pressure and temperature in the beating zone of refiners |
| 05/14/1996 | CA2051580C Keyway for refiner disc |