| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
|---|
| 08/18/1993 | EP0555371A1 Multi pin rotor fiber fluff generator |
| 08/18/1993 | EP0555226A1 Fiber treatment apparatus |
| 08/17/1993 | US5236093 Rate control overflow system for disk screens |
| 08/17/1993 | US5236090 Flotation-deinking-device |
| 08/15/1993 | CA2089197A1 Method and arrangement for fastening a grinding segment |
| 08/10/1993 | US5234172 High pressure water jet comminuting |
| 08/04/1993 | EP0386031B1 Method and device for indicating the contact position in a refiner |
| 08/03/1993 | US5232097 Screening method and apparatus |
| 08/03/1993 | CA1320864C2 Apparatus for crushing or grinding of fibrous material, in particular drum refiner |
| 08/03/1993 | CA1320863C Interstage treatment of mechanical pulp |
| 07/22/1993 | WO1993014264A1 Method and apparatus for crosslinking individualized cellulose fibers |
| 07/22/1993 | WO1993014261A1 Method for crosslinking individualized cellulose fibres |
| 07/22/1993 | CA2128015A1 Method and apparatus for crosslinking individualized cellulose fibers |
| 07/20/1993 | US5228629 Grinding element for drum refiner |
| 07/13/1993 | CA1320067C Method of making mechanical and chemi-mechanical papermaking pulp |
| 07/06/1993 | US5225045 System and method for recycling materials from disposed diapers |
| 07/06/1993 | US5225041 Refining process for paper pulp using a silica sol |
| 07/06/1993 | CA1319847C Means and method for removal of strings from wastepaper pulp |
| 06/29/1993 | CA1319650C Split flow 'v' screen |
| 06/29/1993 | CA1319556C Secondary fibre recycling process |
| 06/24/1993 | DE4141865A1 Paper machine mfg. appts. - is a vertical cylinder container with vertical stirring shaft moved forwards and back by a motor |
| 06/15/1993 | CA1319126C Procedure and apparatus for separating batches from a stream of logs |
| 06/10/1993 | WO1993011295A1 Apparatus for dividing a flow of fibrous material into at least two equally metered flows |
| 05/27/1993 | DE4139777A1 Recycled paper waste water - comprises sludge of water and solids to which resin is added and mixed to give material for boards or flooring |
| 05/27/1993 | CA2066462A1 Paper material screening/refining apparatus |
| 05/26/1993 | EP0542835A1 Method and apparatus for improving flotation separation |
| 05/25/1993 | CA1318284C Rotating ring disc slot screen |
| 05/25/1993 | CA1318166C Apparatus for crushing or grinding of fibrous material, in particular drum refiner |
| 05/18/1993 | US5211809 Recycled paper |
| 05/16/1993 | CA2080799A1 Discs for fiberizing waste paper |
| 05/12/1993 | CN1020559C Laminated material and process for mfg. same |
| 05/11/1993 | CA1317499C Apparatus for crushing or grinding of fibrous material, in particular drum refiner |
| 05/05/1993 | CN2131891Y Fabre tearing-slicing machine for paper-making |
| 04/29/1993 | WO1993008326A1 Bagasse depither |
| 04/29/1993 | DE4135394A1 Waste paper sorting installation with reduced labour requirement - has sieve feeding conveyors with a series of discharges operated by colour sensors |
| 04/28/1993 | EP0538603A1 Process for the removal of fine contaminants from waste paper pulp |
| 04/21/1993 | EP0537416A1 Process for the treatment of pulp |
| 04/20/1993 | US5203966 Method and apparatus for conditioning baled wastepaper in recycling operations |
| 04/20/1993 | CA2080886A1 Method of removing fine contaminants from used paper fibre material |
| 04/14/1993 | EP0536171A1 Integrated pulp mill and method of constructing same. |
| 04/14/1993 | CN1070970A Oxygen color stripping in secondary fiber recovery |
| 04/13/1993 | US5201917 Grinding or refining machines for grinding the ceramic powders, or defibration and refining of paper pulp |
| 04/13/1993 | US5201423 Fiber suspensions sorter having a plurality of screen baskets |
| 04/07/1993 | EP0535008A1 Conditioning bales of waste paper for recycling |
| 04/06/1993 | US5199476 Treatment of wood chips |
| 04/06/1993 | CA1315584C Apparatus for the conditioning of bulk material |
| 04/06/1993 | CA1315583C Method of making mechanical pulp |
| 03/30/1993 | US5197679 Core stripper |
| 03/25/1993 | DE4133683A1 Verfahren zur aufbereitung von bedrucktem altpapier Method for processing printed waste paper |
| 03/24/1993 | CN1070132A Method and equipment for recovering metallic aluminium and paper pulp from waste aluminium foil paper |
| 03/23/1993 | US5195684 Screenless disk mill |
| 03/23/1993 | CA1314844C Automatic chip classifier and system |
| 03/21/1993 | WO1993006295A1 Method of processing printed waste-paper |
| 03/18/1993 | WO1993005211A1 Separating mechanism |
| 03/18/1993 | WO1993005210A1 Alignment mechanism |
| 03/18/1993 | WO1993005209A1 Crushing mechanism |
| 03/18/1993 | WO1993004784A1 Improved apparatus and method for deinking waste paper pulp |
| 03/18/1993 | WO1993004772A1 A method and device for treating fibre material |
| 03/18/1993 | DE4238511A1 Recycling used cardboard beverage containers - by means of cutter located above pulp dissolving unit |
| 03/18/1993 | CA2117071A1 Improved apparatus and method for deinking waste paper pulp |
| 03/18/1993 | CA2116243A1 Crushing mechanism |
| 03/18/1993 | CA2116122A1 Alignment mechanism |
| 03/18/1993 | CA2116032A1 Separating mechanism |
| 03/17/1993 | EP0531609A1 Atmospheric pre-steaming chip bin vacuum and pressure relief device |
| 03/16/1993 | US5193753 Apparatus for disintegrating flexible packing materials |
| 03/03/1993 | EP0530124A1 Improvements in pulpers for the desintegration of cellulose pulp |
| 03/03/1993 | EP0529548A1 Screen apparatus for paper making |
| 02/23/1993 | US5188298 Comminution of paper, newsprint; high speed centrifugal rotors , separation, screening |
| 02/18/1993 | WO1993002836A1 Method and apparatus for sharpening the surface of a grindstone in a pulp grinder |
| 02/18/1993 | WO1992008843A3 Fiber treatment apparatus |
| 02/17/1993 | EP0527323A1 Screw feeder |
| 02/16/1993 | CA1313600C Paper material refining apparatus |
| 02/14/1993 | CA2075871A1 Pulpers for the disintegration of cellulose pulp |
| 02/10/1993 | CN1068866A Process for pretreatment of cotton stalk fiber |
| 01/26/1993 | US5182031 Process and device for deaeration of liquids |
| 01/20/1993 | EP0523047A1 Apparatus and method for conjoint adjustment of both the inner and outer grinding spaces of a pulp defibrating apparatus. |
| 01/05/1993 | US5176822 Flotation machine for deinking |
| 01/05/1993 | US5176793 Method of treating and a disperger for disintegrating wood pulp, especially containing waste paper |
| 01/02/1993 | WO1993001005A1 Wood chip screen deck |
| 12/30/1992 | CN1019644B Procedure and apparatus for sorting of wood chips |
| 12/29/1992 | CA1312152C Pressurized flotation module and method for pressurized foam separation |
| 12/22/1992 | US5173177 Anti-plugging adjustable orifice for gas sparged hydrocyclone |
| 12/16/1992 | EP0517988A1 A process to obtain a molding pulp starting from short fiber cellulose |
| 12/15/1992 | US5170951 Grinding apparatus |
| 12/10/1992 | WO1992021812A1 A method of and an apparatus for treating waste paper |
| 12/10/1992 | DE4118412A1 Appts. to convert cut paper side strips to pulp - feeds diluting liq. into suction channel between cutter and collection vessel |
| 12/10/1992 | CA2112806A1 A method of and an apparatus for treating waste paper |
| 12/08/1992 | US5169498 Atmospheric pre-steaming chip bin vacuum and pressure relief device |
| 12/03/1992 | DE4217840A1 Recovery of waste laminated packing material - by separating metal, plastic and paper by treatment with organic acid |
| 11/25/1992 | WO1992020855A1 A method for the manufacture of chemithermomechanical pulp |
| 11/25/1992 | EP0514901A2 Dye removal in oxygen color stripping of secondary fibers |
| 11/25/1992 | EP0514741A2 Flotation device for removing impurities, particularly printing inks from waste paper suspensions |
| 11/25/1992 | EP0514740A1 Process of pulping waste paper for deinking |
| 11/25/1992 | CN2122882U Cotton stalk shredder |
| 11/25/1992 | CA2109513A1 A method for the manufacture of chemithermomechanical pulp |
| 11/17/1992 | US5164042 Low energy process results in paper with better printability |
| 11/17/1992 | US5163564 Disc screen with controlled interfacial openings |
| 11/10/1992 | CA1309978C Sorting apparatus for fiber suspensions |
| 11/10/1992 | CA1309962C Plug screw feeder |
| 10/21/1992 | EP0509905A1 Process for producing high yield bleached pulp |