| Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157) |
|---|
| 07/09/1986 | EP0186738A2 Sorting apparatus for fibre suspensions |
| 07/03/1986 | WO1986003688A1 Pressure slit screen |
| 07/02/1986 | CN85103594A Fluid impurity dissociator |
| 07/02/1986 | CA1206920A Vortex cleaner |
| 07/02/1986 | CA1206919A Multiple hydrocyclone apparatus |
| 07/01/1986 | US4597930 Hydrogen bonding |
| 06/24/1986 | US4596631 Method of removing latency from medium consistency pulps by pumping the pulp |
| 06/17/1986 | USRE32182 Method for screening, separating, and removing fiber bundles, lumps, knots and foreign matter from aqueous dispersions used in forming non-woven fabrics by wet-laying |
| 06/10/1986 | US4594152 Screening pulp |
| 06/10/1986 | CA1205799A1 Stirrer apparatus for paper stock |
| 05/28/1986 | EP0182688A1 Purification strainers and method for their production |
| 05/27/1986 | CA1205044A1 Screen cage for separators for sorting fibre suspensions |
| 05/07/1986 | EP0100345B1 Screen machine |
| 04/29/1986 | US4585551 Papermaking |
| 04/29/1986 | CA1203779A1 Noncircular rejects outlet for cyclone separator |
| 04/29/1986 | CA1203778A1 Method for separating a mixture of fiber suspension and light impurities |
| 04/09/1986 | EP0109396B1 Screen plate, screw press or the like for treatment of a suspension |
| 04/08/1986 | US4581142 Hydrocyclone |
| 04/02/1986 | EP0175991A1 Method for producing high-yield paper-making pulp |
| 04/01/1986 | US4579652 Disk screen shaft assemblies and method of and means for manufacturing the same |
| 03/25/1986 | US4578199 Cyclone separators |
| 03/12/1986 | EP0098270B1 Method and apparatus in screening fibre suspensions |
| 03/05/1986 | EP0173638A2 Prevention of wedged jamming in disk screens |
| 02/25/1986 | US4572787 Arrangement for cyclone assemblies for cleaning liquid suspensions |
| 02/18/1986 | US4571298 For fiber suspensions comprising a screen wall with resesses and apertures |
| 02/18/1986 | CA1200787A1 Method and apparatus in screening fibre suspensions |
| 01/30/1986 | WO1986000542A1 Apparatus for separating gas from a fibre suspension |
| 01/14/1986 | US4564443 Reverse centrifugal cleaning of paper making stock |
| 01/07/1986 | US4562969 Process for preparing groundwood pulp as short fiber and long fiber fractions |
| 12/10/1985 | US4557826 Using a mass force field and pick-up surface |
| 12/03/1985 | CA1197478A1 Cyclone separators |
| 11/19/1985 | CA1196871A1 Screen plate, screw press or the like intended for the treatment of a suspension |
| 11/13/1985 | EP0161238A2 Latency removal |
| 11/12/1985 | US4552462 Stirrer apparatus for paper stock |
| 11/06/1985 | EP0160629A2 A method and system for controlling the apex flow of a multihydrocyclone for fiber suspensions |
| 11/06/1985 | EP0160069A1 Rotatable disc filter. |
| 10/30/1985 | EP0159808A2 Hydrocyclone separator apparatus |
| 10/29/1985 | US4549964 Device for flushing obstructions from the reject head of a centrifugal separator |
| 10/10/1985 | WO1985004433A1 Method and apparatus for processing material suspensions |
| 10/02/1985 | EP0156777A2 A vortex cleaner |
| 09/25/1985 | EP0155928A1 Mechanical pulp hydrosulfite bleaching |
| 09/24/1985 | US4543181 Medium consistency flat disk pressure screen |
| 09/04/1985 | EP0153717A2 A method for producing improved high-yield pulps |
| 09/03/1985 | US4539105 Cyclone separator having abrasion resistant cone covered by a plastic sleeve with flexible seal regions |
| 09/03/1985 | US4538767 Apparatus for recovering paper-making fiber from contaminated waste paper products |
| 08/27/1985 | US4537314 Vortex cleaner |
| 08/20/1985 | US4536295 Method for separating coarse particles from a liquid |
| 08/20/1985 | US4535497 Method for treatment of suspensions in movement |
| 08/20/1985 | CA1192142A1 Method for thickening of pulp slurry or suspension and disk filter for carrying out the method |
| 07/30/1985 | CA1191042A1 Method and apparatus for recovering paper-making fiber from contaminated waste paper products |
| 07/17/1985 | EP0148382A2 Method for fiber retrieval from aqueous streams |
| 07/16/1985 | US4529520 Screen plate |
| 07/16/1985 | US4529519 Pressure sorters |
| 07/16/1985 | US4529509 Screen Machine |
| 07/10/1985 | EP0147564A1 Apparatus for cleaning waste paper stock |
| 07/03/1985 | EP0146641A1 Sorting screen for fibrous suspensions |
| 06/26/1985 | EP0108058A4 Hydrocyclone featuring hydraulic jump in overflow passage. |
| 06/19/1985 | EP0145365A2 Rotary pulp screen of the vertical pressure type having pulp stock feed at different axial positions on the screen |
| 06/04/1985 | US4521380 Water discharghers, water supply pipe, torque detector |
| 05/22/1985 | EP0142054A2 Screening apparatus with light reject removal |
| 05/21/1985 | US4518499 Apparatus for fractionating solid particles suspended in a liquid |
| 05/09/1985 | WO1985001967A1 Screening apparatus with light reject removal |
| 05/02/1985 | EP0138865A1 An arrangement for cyclone assemblies for cleaning liquid suspensions. |
| 04/25/1985 | WO1985001672A1 Rotatable disc filter |
| 04/24/1985 | EP0138792A2 Apparatus for fractionating fiber suspensions |
| 04/24/1985 | EP0138475A2 Improvements in and relating to reject handling in cyclones and other separator devices |
| 04/16/1985 | CA1185471A1 Refiner |
| 04/09/1985 | US4510056 Hydrocyclone separator |
| 04/09/1985 | CA1185210A1 Screening apparatus for paper making stock |
| 03/12/1985 | US4504016 Process for cleaning chemical cellulose pulp by screening and apparatus |
| 03/12/1985 | CA1183711A1 Pulping apparatus including improved rotor |
| 02/26/1985 | US4501662 Wire machine, for dewatering stock suspensions |
| 02/26/1985 | US4501040 Method and apparatus for washing stock suspensions by removing undesired material through an endless wire |
| 02/19/1985 | CA1182762A1 Pulp degassing |
| 02/19/1985 | CA1182757A1 Method and apparatus for filtering contaminating particles from a liquid/particle mixture |
| 01/23/1985 | EP0132141A2 Centrifugal cleaning of paper making stock |
| 01/23/1985 | EP0131597A1 Hydrocyclone. |
| 01/15/1985 | US4493766 Rotating sorter for fiber material suspensions |
| 01/08/1985 | CA1180686A1 Paper making stock screening apparatus incorporating circular apertured cylindrical pressure screen |
| 11/06/1984 | US4480796 Pulping apparatus including improved rotor |
| 10/30/1984 | US4479872 Method and apparatus in screening fiber suspensions |
| 10/23/1984 | US4478615 Deaerated liquid stock supply |
| 10/16/1984 | US4477359 Process for fractionating solid particles suspended in a liquid, in particular for treating paper-industry fiber suspensions |
| 10/16/1984 | US4477339 Cyclone classifier |
| 10/03/1984 | EP0120766A1 Process and apparatus for sorting a mixture of paper pulp and impurities |
| 10/02/1984 | CA1175365A1 Means for degassing paper pulp stock |
| 09/26/1984 | EP0119345A1 Screening apparatus for paper making stock |
| 09/25/1984 | US4473478 Cyclone separators |
| 09/11/1984 | CA1174203A1 Pump and clearing-type wedge-shaped vanes on antiblinding rotating drums for screens |
| 09/04/1984 | US4469556 Flow distributor |
| 09/04/1984 | CA1173793A1 Method and device for separating the constitutents of a solution through a continuously declogged sieve by alternating pressure and vacuum |
| 08/30/1984 | WO1984003236A1 An arrangement for cyclone assemblies for cleaning liquid suspensions |
| 08/21/1984 | US4466862 Method for screening, separating, and removing fiber bundles, lumps, knots and foreign matter from aqueous dispersions used in forming non-woven fabrics by wet-laying |
| 07/31/1984 | US4462901 Apparatus for screening fibrous stock |
| 07/31/1984 | US4462900 Centrifugal pulp screening device and method |
| 07/31/1984 | US4462899 Hydrocyclone cleaner assembly |
| 07/19/1984 | WO1984002664A1 Hydrocyclone |
| 06/27/1984 | EP0111743A2 Hydrocyclone cleaner assembly |
| 06/26/1984 | US4456183 Fiberizer for stock suspensions for fabricating paper |
| 06/19/1984 | US4455224 Apparatus for treating a papermaking suspension |