| Patents for D21D 1 - Methods of beating or refining; Beaters of the hollander type (3,356) |
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| 03/15/1988 | CA1234008A1 Refining disc for wood pulp or the like |
| 02/25/1988 | WO1988001317A1 Refiner with improved bearing retainer construction |
| 02/24/1988 | EP0256972A2 Refiner for the treatment of fibrous material |
| 02/23/1988 | CA1233059A1 Method and apparatus for refining lignocellulose containing material |
| 02/16/1988 | US4725336 For reducing wood chips to pulp |
| 02/16/1988 | US4725295 Pulping systems |
| 02/11/1988 | WO1988000992A1 Apparatus for treatment of fibre suspensions |
| 01/20/1988 | EP0252915A1 Method at the manufacture of mechanical pulp. |
| 01/13/1988 | EP0252204A1 Machine for the dry defibering of fibrous cellulosic material and the like, particularly for preparing absorbent masses for disposable diapers and the like |
| 01/05/1988 | CA1230996A1 Method and apparatus for manufacturing fibre pulp |
| 12/29/1987 | CA1230709A1 Procedure for producing refined groundwood pulp |
| 12/15/1987 | US4712745 Rotating disc wood chip refiner |
| 12/01/1987 | US4710268 Method for regulating the pressure of blow-through discharge steam from a reboiler of process steam produced during production of mechanical pulp |
| 11/19/1987 | WO1987006963A1 Grinding block for a refiner |
| 11/19/1987 | EP0245536A2 Method of controlling the degree of digestion of lignocellulose-containing materials |
| 11/19/1987 | DE3616051A1 Method of monitoring the digestion of lignocelluloses with the aid of FTIR spectroscopy |
| 11/11/1987 | EP0172818B1 Method and apparatus for making fibre pulp |
| 10/22/1987 | WO1987006280A1 Method of reducing the energy consumption at the refining of cellulose-containing material |
| 10/20/1987 | US4700900 Two stage refiner |
| 10/13/1987 | US4699324 Combined screening and reject reduction |
| 10/06/1987 | US4697292 Shower pipes for rotary drum filter |
| 10/06/1987 | CA1227681A1 Co-refining of aramid fibrids and floc |
| 09/29/1987 | CA1227365A1 Device at refiners for lignocellulose-containing material |
| 09/24/1987 | WO1987005643A1 Disc refiner |
| 09/08/1987 | US4692214 Apparatus for producing mechanical pulp with a refiner having its drive shaft connected to a steam turbine output shaft |
| 09/08/1987 | US4692210 Method and apparatus for measuring the distribution of fiber widths and adjusting the refining of fibrous stock |
| 09/02/1987 | EP0172830B1 Method and apparatus for making pulp |
| 08/27/1987 | WO1987005061A1 Disk refiner having sliding rigid multiple disks |
| 08/25/1987 | US4688732 Refiner with improved bearing retainer construction |
| 08/25/1987 | US4688726 Method and apparatus for controlling a particle refining process |
| 08/11/1987 | US4685623 Method and apparatus for treating pulp |
| 08/05/1987 | EP0230422A1 Rotor/mixer for controlling mixing and refining of pulp material. |
| 08/04/1987 | US4684073 Apparatus for thickening and refining fibre-pulp suspensions |
| 07/23/1987 | DE3641954A1 Device for removing impurities from rollers or cylinders |
| 07/21/1987 | US4681270 Manufactured refining element |
| 07/07/1987 | US4678127 Pumped flow attrition disk zone |
| 06/30/1987 | US4676440 Disc cutter with exhaust channels |
| 06/16/1987 | US4673875 Apparatus including contact free transfer of signals for measuring the gap between relatively rotating refiner discs |
| 06/16/1987 | EP0225486A1 A manufactured refining element |
| 06/02/1987 | US4670099 Method and apparatus for washing a mat of pulp stock on a drum filter |
| 05/26/1987 | US4668341 Method and apparatus for producing mechanical pulp with a steam turbine driven refiner |
| 05/13/1987 | EP0221082A1 Method and apparatus for treating pulp |
| 05/12/1987 | US4664320 Apparatus for separating the components of cellulose sanitary articles |
| 05/06/1987 | EP0220183A1 Method at the manufacture of refiner segments |
| 05/06/1987 | CN85107578A Technology of chemical machinery method of pulpmaking with reed to make paperplate |
| 04/28/1987 | US4661911 Adaptive constant refiner intensity control |
| 04/14/1987 | US4657637 Pulp treatment apparatus having lowerable vacuum containers to facilitate removal thereof |
| 04/14/1987 | US4657636 High density pulp screening apparatus |
| 04/07/1987 | US4655406 Apparatus for treating cellulose pulp with intermeshing disks and asymmetrical guide fins |
| 03/11/1987 | CN85105718A Rigid link multipe disk refiner |
| 02/26/1987 | WO1987001056A1 Method for refining fibrous material |
| 01/14/1987 | EP0207937A1 Method and apparatus for processing material suspensions |
| 01/13/1987 | US4635864 Refiner disc segment |
| 01/13/1987 | US4635322 Fiber washer |
| 12/09/1986 | US4627578 Methods of and/or apparatus for detecting and controlling refiner plate clashing |
| 12/02/1986 | US4626318 Method of controlling a pulp refiner by measuring freeness and removing the latency from the pulp |
| 12/02/1986 | US4625926 Multiple disk refiner with elastomeric mounting |
| 12/02/1986 | US4625859 Screw feeder |
| 11/26/1986 | EP0202223A1 Apparatus for thickening and refining fibre-pulp suspensions. |
| 11/25/1986 | US4624420 Refining disc for wood pulp or the like |
| 11/20/1986 | WO1986006770A1 Method at the manufacture of mechanical pulp |
| 11/12/1986 | CA1213709A Shower pipes for rotary drum filter |
| 11/06/1986 | WO1986006427A1 Method and apparatus for treating pulp |
| 11/04/1986 | US4620675 Composite flexible pulp refiner disk |
| 10/28/1986 | US4619414 Multi-disk refiner |
| 10/22/1986 | CN85103088A Composite flexible pulp refiner disk and method of making the same |
| 09/30/1986 | US4614309 Rigid link multiple disk refiner |
| 09/30/1986 | US4614304 Rotor/mixer for controlling mixing and refining of pulp material |
| 09/17/1986 | EP0194959A2 Refiner disk assembly |
| 09/10/1986 | CN86101156A Refiner disk assembly |
| 09/09/1986 | US4610400 Device at refiners for lignocellulose-containing material |
| 09/09/1986 | CA1210980A1 Method of controlling a grinding process in a pocket grinder |
| 09/09/1986 | CA1210979A1 Process of producing fiberboard according to the wet method |
| 08/20/1986 | EP0191714A2 Multi-disk refiner |
| 08/19/1986 | CA1209955A1 Swept orifice discharger and method |
| 08/13/1986 | CN86100235A Multi-disk refiner |
| 08/06/1986 | CN86100491A Adaptive constant refiner intensity control |
| 07/23/1986 | EP0113353B1 Method and apparatus for producing fibre pulp from fibrous lignocellulose containing material |
| 07/17/1986 | EP0097716A4 High bulk pulp, filter media utilizing such pulp, related processes. |
| 07/16/1986 | EP0187611A2 Flexible link disk drive for multiple disk refiner |
| 07/15/1986 | US4600475 Refining apparatus with radial passageways for steam recovery |
| 07/15/1986 | CA1207572A1 Rotating disc wood chip refiner |
| 06/19/1986 | WO1986003530A1 Rotor/mixer for controlling mixing and refining of pulp material |
| 06/10/1986 | CN85108615A Flexible link disk drive for multiple disk refiner |
| 06/10/1986 | CN85107699A Multiple disk refiner with elastomeric mounting |
| 06/10/1986 | CN85107651A Flexible spoke rotor for multiple disk refiuer |
| 06/10/1986 | CN85105486A Fibre washer |
| 05/20/1986 | US4589598 Apparatus for controlling a variable speed gearmotor |
| 05/14/1986 | EP0181279A2 Multiple disk refiner with elastomeric mounting |
| 05/14/1986 | EP0181278A2 Flexible spoke rotor for multiple disk refiner |
| 05/06/1986 | US4586665 Apparatus for treating cellulose pulp with adjustable treating gap |
| 05/06/1986 | US4586662 Flexible spoke rotor for multiple disk refiner |
| 04/23/1986 | EP0179041A2 Cutter segment |
| 04/23/1986 | EP0179029A1 A device for measuring the grinding gap between two grinding discs in a disc refiner |
| 04/22/1986 | CA1203599A1 Fiber length indicating apparatus and method |
| 04/16/1986 | EP0178271A1 Apparatus for liquid treatment of pulp |
| 04/10/1986 | CN85106484A Method and apparatus for controlling a variable speed gearmotor |
| 04/10/1986 | CN85106049A Power saving pulp beater |
| 04/02/1986 | EP0175991A1 Method for producing high-yield paper-making pulp |
| 04/02/1986 | EP0175744A1 Method and apparatus for refining lignocellulose-containing material |