SUNDS DEFIBRATOR INDUSTRIES AKTIEBOLAG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 827
 
  
 
B07B SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 219
 
  
 
B30B PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR 220
 
  
 
B01D SEPARATION 1133
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B03B SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS 18
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
D21B FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT19
 
  
 
D21D TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 18

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6042036 Refining elementJun 17, 98Mar 28, 00[B02C]
6036818 Pulp-dewatering roll pressJun 08, 98Mar 14, 00[D21D]
5996770 Plug screw feederSep 18, 97Dec 07, 99[B65G]
5950946 Pair of co-operating refining elements intended for a disc refinerApr 22, 98Sep 14, 99[B02C]
5899338 Screening apparatus for separating light impurities from pulp suspensionsMay 22, 97May 04, 99[B03B]
5853534 Method of producing pulp with high yield using a two-stage refining system operating at different temperaturesSep 18, 97Dec 29, 98[D21B]
5746120 Tying device in which the drive means are electric servomotorsMar 11, 96May 05, 98[B65B]
5695136 Refining elementNov 08, 96Dec 09, 97[B02C]
5683048 Refining elementsFeb 11, 97Nov 04, 97[B02C]
5679250 Pressurized screen arrangementAug 07, 95Oct 21, 97[B07B, B01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6454900 Method for two-stage oxygen delignification of chemical pulpExpiredJun 21, 01Sep 24, 02[D21C]
6000552 Process for purification of a fiber suspensionExpiredMay 06, 99Dec 14, 99[B03D, D21C]
5989468 Method of continuous production of lignocellulosic boardsExpiredJan 26, 98Nov 23, 99[B27N]
5980689 Method of separating metal ions from pulp using a chelating agentExpiredApr 11, 96Nov 09, 99[D21C]
5970862 Seal in a roll pressExpiredJun 04, 98Oct 26, 99[B30B]
5932156 Method for producing lignocellulosic boardsExpiredJan 26, 98Aug 03, 99[B27N]
5917166 Method of washing sawdust and arrangement for carrying out the methodExpiredMar 27, 97Jun 29, 99[B03D]
5902456 Dewatering apparatusExpiredMay 29, 97May 11, 99[B30B]
5882509 Chip-washing arrangementExpiredFeb 26, 97Mar 16, 99[B01D]
5826501 System at a multi-stage pressExpiredMay 21, 97Oct 27, 98[B30B]
5827400 Liquid treatment deviceExpiredSep 11, 96Oct 27, 98[B30B]
5816996 Method and device for manufacturing wrapping sheetsExpiredMar 25, 96Oct 06, 98[B31F]
5753830 Method and system for sampling in a material mixtureExpiredAug 05, 96May 19, 98[G01N]
5746890 Device for admixing a processing agent into a pulp suspensionExpiredMay 22, 96May 05, 98[B01F]
5747707 Measuring device for refinersExpiredAug 16, 96May 05, 98[G01L]
5741398 Method of removing metal ions dissolved in the bleach plant waste waterExpiredJan 03, 97Apr 21, 98[D21C]
5725783 Concentrating method and means thereforExpiredMay 19, 95Mar 10, 98[B30B, B01D]
5704559 Refining elementExpiredDec 12, 96Jan 06, 98[B02C]
5700086 Mixing device with axially movable shaft for maintenance purposesExpiredNov 02, 95Dec 23, 97[B01F]
5658407 Method and apparatus for pre-pressing fibrous materials during the manufacture of fiberboard materialsExpiredNov 06, 95Aug 19, 97[D21J]

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