Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21D - Treatment of the materials before passing to the paper-making machine › D21D 1 - Methods of beating or refining; Beaters of the hollander type
Patents for D21D 1 - Methods of beating or refining; Beaters of the hollander type (3,356)
03/1990
03/08/1990WO1990002223A1 A method of treating and a disperger for disintegrating wood pulp, especially containing waste paper
02/1990
02/28/1990EP0356415A2 Backflushing pressure diffuser screens
02/27/1990CA1266152A1 Process for producing high yield bleached cellulose pulp
02/22/1990WO1990001371A1 Stress regulator for pulp grinding apparatus and method
01/1990
01/03/1990EP0348418A1 Refiner segment.
01/02/1990US4890796 Axial displaceable rotatable shaft; controlling fluid pressure
12/1989
12/13/1989EP0221081B1 Combined hydrostatic/hydrodynamic bearing system for grinding apparatus
12/12/1989US4886576 Method and apparatus for producing uniform pulp yields by controlling the operation of a refiner
11/1989
11/29/1989CN1037559A Method for producing double gummed paper with full-reed pulp
11/16/1989WO1989010998A1 Method of making mechanical and chemi-mechanical papermaking pulp
11/14/1989CA1262924A1 Combined hydrostatic/hydrodynamic bearing system for grinding apparatus
11/08/1989CN1037001A Technology for making pasted original paper for offset printing
11/07/1989US4878997 Method and apparatus for manufacturing fibre pulp
11/07/1989CA1262742A1 Sealing ring assembly for use in pulp refining equipment
11/02/1989WO1989010446A1 Pulp treatment methods
10/1989
10/31/1989US4878020 Method and device for measuring the distance between the discs of a refiner using a measurement of the magnetic flux induced between the discs
10/18/1989EP0337432A2 Method and apparatus for treating fiber suspensions
10/11/1989EP0335870A1 Refiner
10/10/1989US4872617 Canted, spring-loaded feed screw support
10/05/1989DE3908374A1 Seal for sealing the leadthrough of a rotatable shaft of a refiner
10/05/1989DE3908372A1 Seal for sealing the leadthrough of a rotatable shaft of a refiner
10/04/1989CN1036058A Medium-dense milling method for making cotton stalk pulp and pulp with other mixed materials
09/1989
09/28/1989DE3808765A1 Apparatus for the dispersion and disintegration of fibrous material
09/26/1989CA1261182A1 Method for treating stock for paper making
09/13/1989EP0097716B1 High bulk pulp, filter media utilizing such pulp, related processes
08/1989
08/31/1989DE3804869A1 Verfahren zur regelung eines holzschleifers Method for control of a wood grinder
08/24/1989WO1989007687A1 Process for controlling a pulp grinder
08/10/1989WO1989007169A1 Process for removing the fibre from a lignocellulose material
08/09/1989EP0327469A1 Process for defibrillating lignocellulosic material
08/08/1989CA1258194A1 Refiner apparatus with integral steam separator
07/1989
07/27/1989WO1989006718A1 Method of refining hardwoods to produce paper pulp
07/06/1989DE3743777A1 Disc refiner
06/1989
06/29/1989DE3743071A1 Refiner for paper stock
06/20/1989US4840318 Welded conical grinding cutter
06/07/1989EP0318756A1 Process and device for removing ashes
06/07/1989EP0318495A1 Apparatus for treatment of fibre suspensions.
05/1989
05/24/1989EP0230422B1 Rotor/mixer for controlling mixing and refining of pulp material
05/23/1989CA1254426A1 Cutter segment
05/18/1989DE3837766A1 Apparatus for the comminution or grinding of fibre material, especially drum refiner
05/18/1989DE3837757A1 Apparatus for comminuting or grinding fibrous material, in particular drum refiner
05/17/1989EP0315737A1 Method and apparatus for treating pulp
04/1989
04/18/1989CA1252665A1 Method and apparatus for the thermo-mechanical pulping of wood
04/11/1989US4820980 Gap, wear and tram measurement system and method for grinding machines
04/11/1989US4820381 Pulp refiner with fluidizing inlet
04/11/1989US4819881 Refiner for processing a fiber stock suspension for paper fabrication
04/06/1989WO1989002783A1 Method and device for indicating the contact position in a refiner
03/1989
03/21/1989US4813621 Refiner for processing fiber material
03/08/1989EP0305659A1 Process for regulating specific dispersion power
02/1989
02/28/1989CA1250479A1 Rigid link multiple disk refiner
02/23/1989DE3726602A1 Device for reducing energy consumption in the grinding (beating) of fibrous material
02/21/1989CA1250171A1 Method and apparatus for making pulp
02/15/1989CN2032629U Fibre board separation pulper
02/08/1989EP0302075A1 Method of reducing the energy consumption at the refining of cellulose-containing material
01/1989
01/31/1989US4801099 Pulp refining apparatus
01/31/1989CA1249646A1 Adaptive constant refiner intensity control
01/26/1989WO1989000624A1 Method and apparatus for controlling the production of refined stock
01/18/1989CN1030451A 改进的聚乙烯浆粕 Improved polyethylene pulp
01/11/1989CN2030507U Helical-blade rotor for pulper
01/03/1989US4795558 Shower pipes for rotary drum filter
01/03/1989CA1247908A1 Apparatus for liquid treatment of pulp
12/1988
12/13/1988CA1246374A1 Two stage high consistency refiner
11/1988
11/29/1988US4787309 Movably supported screw press
11/29/1988CA1245498A1 Rotor/mixer for controlling mixing and refining of pulp material
11/23/1988EP0292285A1 Polyethylene pulp
11/22/1988CA1245088A1 Refiner steam turbine drive modifications
11/17/1988WO1988008957A1 Gap, wear and tram measurement system and method for grinding machines
11/17/1988EP0290487A1 Method and device for measuring the distance between the discs of a refiner.
11/08/1988US4783014 Disk refiner having sliding rigid multiple disks
11/02/1988EP0288456A1 Disk refiner having sliding rigid multiple disks.
11/02/1988CN87102890A Cooker/beater device
10/1988
10/20/1988DE3712096A1 Process and equipment for the manufacture of paper
10/19/1988CN87101324A Pulpifying technology and its fabricative equipments for making high strength corrugated raw paper with cotton fagot by means of imine method
10/11/1988US4776926 Thinning, agitation, separation into fine and long fiber fractions of varying freeness
09/1988
09/27/1988CA1242346A1 Apparatus for pulping paper
09/20/1988US4772358 Pressure gradients, steam flow, grinding patterns, radial
09/07/1988WO1988006490A1 Refiner segment
09/07/1988EP0281273A1 Cellulosic pulp
08/1988
08/18/1988DE3733565A1 Method for the industrial fibrillation of paper-stock fibres and a device for carrying out the method
08/17/1988CN85107578B Technology of chemical machinery method of pulpmaking with reed to make paperplate
08/09/1988CA1240191A1 Composite flexible pulp refiner disk and method of making the same
08/02/1988US4761203 Process for making expanded fiber
07/1988
07/06/1988EP0273745A2 Process for making expanded fiber
07/05/1988US4754935 Method and apparatus for refining fibrous material
06/1988
06/29/1988EP0273020A2 Means for defibrating and sorting pulp in paper and cellulose industry
06/29/1988EP0273019A2 Means for defibrating and sorting pulp in paper and cellulose industry
06/29/1988EP0273018A2 Means for defibrating and sorting pulp in paper and cellulose industry
06/28/1988CA1238516A1 Screw feeder
06/22/1988EP0271502A1 Grinding block for a refiner.
06/21/1988CA1238220A1 Method and apparatus for making fibre pulp
06/14/1988US4750340 Apparatus for treating a fibre suspension
05/1988
05/10/1988US4743339 Method for controlling the digestion of pulp by IR spectroscopy
05/05/1988WO1988003189A1 Refiner
05/05/1988WO1988003054A1 Method and device for measuring the distance between the discs of a refiner
05/04/1988EP0265762A1 Fibrillated fibers and articles made therefrom
04/1988
04/27/1988CN87212264U Concentrated pulp disc grinder
03/1988
03/24/1988DE3639135C1 Control device of a disc mill
03/22/1988US4732336 Apparatus for treating cellulose pulp with intermeshing disks and asymmetrically pulp moving means
03/22/1988US4732335 Apparatus for treating cellulose pulp with intermeshing disks and assymetrical pulp moving means
03/22/1988CA1234310A1 Flexible disk refiner and method
03/22/1988CA1234309A1 Flexible disk refiner and method
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