| Patents for B02C 23 - Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in groups or not specially adapted to apparatus covered by one only of groups (12,798) |
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| 11/14/1991 | WO1991016984A1 An apparatus for grinding a sample of an organic material in a liquid and a system for analyzing a sample of an organic material |
| 11/13/1991 | EP0455923A1 An apparatus for grinding a sample of an organic material in a liquid and a system for analyzing a sample of an organic material |
| 11/13/1991 | EP0455697A1 Machine for processing goods, especially refuse, for sorting it. |
| 11/12/1991 | US5064126 Shredder |
| 10/29/1991 | US5060875 Granulator knife |
| 10/23/1991 | EP0452350A1 Process and device for crushing bulk materials |
| 10/22/1991 | US5058813 Precrushing; ball or tube milling; smaller diameter grinding elements; energy efficient |
| 10/16/1991 | EP0451290A1 Vibration grinding classifier |
| 10/15/1991 | US5057209 Adding alkanolamine |
| 10/08/1991 | US5054696 Medical waste disposal system |
| 10/08/1991 | US5054694 Method and apparatus for crushing material for grinding |
| 10/08/1991 | CA1290304C Ball mill |
| 09/25/1991 | EP0447669A1 Process and plant for two-stage grinding of brittle materials |
| 09/25/1991 | CN2085259U Sealed air circulating type dust remover |
| 09/17/1991 | US5048766 Apparatus and method for converting infectious waste to non-infectious waste |
| 09/12/1991 | DE4006971A1 Crusher-filling equipment with granular solids - has funnel with pipe protruding into larger whistle-type resonator |
| 09/05/1991 | WO1991012892A1 Vertical impact mill with coupled material screening |
| 09/03/1991 | US5044567 Scrap crushing machine |
| 09/03/1991 | US5044270 Shredder and compactor with protective guard |
| 08/28/1991 | EP0443119A2 Dynamic roller mill-air classifier |
| 08/28/1991 | CN1013648B Air-jet mill |
| 08/22/1991 | DE4005323A1 Crushing plant for cement material - involves first stage accepting pre-crushed material, and feeding to second stage with constant output regulation |
| 08/21/1991 | EP0305446B1 Coal pulverizer inerting and fire extinguishing system |
| 08/21/1991 | CN1013554B Grinding technology of cinnabar and pearl |
| 08/14/1991 | EP0377701A4 Grinding process |
| 08/14/1991 | DE4016262C1 Milling plant for lumpy material - comprises raw material silos connected by conveyor belts to a magnetic separator, a metal detector and a milling unit |
| 08/13/1991 | US5039020 Method and apparatus for automatically monitoring the destruction of thin sheet material |
| 08/08/1991 | DE4005031C1 Dynamic wind sifter for roller mill - has central, restricted riser for air material mixt. flow with downwards deflection in top region of sifter rotor |
| 08/06/1991 | US5037014 Rotary feeder |
| 07/30/1991 | US5035366 Paper shredder with service power outlet |
| 07/30/1991 | US5035363 Ultrasonic grinding of explosives |
| 07/23/1991 | US5033682 Grinding process |
| 07/18/1991 | DE4000794A1 Grinding of brittle material between two rollers - mixes material with granular material of small grain size to prevent roller vibration |
| 07/17/1991 | CN1053020A Method for improving milling efficiency |
| 07/16/1991 | US5031845 Method and device for the grinding and separating of grain |
| 07/16/1991 | US5031843 Crushing coral limestone using water addition |
| 07/16/1991 | CA1286272C Treatment of middlings |
| 06/19/1991 | EP0432513A1 Method of scrapping cars |
| 06/18/1991 | US5024754 Separator |
| 06/18/1991 | CA1284975C Method and apparatus for the two-stage crushing of brittle material for grinding |
| 05/29/1991 | EP0357669A4 Shredder |
| 05/22/1991 | EP0428183A2 Apparatus for milling and separating kernels |
| 05/16/1991 | WO1991006370A1 Vibration grinding classifier |
| 05/08/1991 | EP0426651A2 Method for crushing lump material and device for carrying out said method |
| 05/02/1991 | DE4033136A1 Ground limestone sepn. machine - performs sepn. of fine and coarse particles using rotor with vortex generated around it |
| 04/30/1991 | US5011089 Dispersing process and stirred ball mill for carrying out this process |
| 04/16/1991 | US5007589 Process for simultaneously leaching and fine milling a subdivided source material |
| 04/09/1991 | US5005770 Sifter for sifting granular material and grinding system having introduction thereinto of such a sifter |
| 04/02/1991 | US5003891 Pulverized coal combustion method |
| 03/28/1991 | DE4023624A1 Tubular ball mill for cement processing - use lined process spaces and specified charge ball size using spheroidal graphite iron linings of triangular profile |
| 03/20/1991 | CN1049983A Shock-pneumatic pulverizer and puoverizing method for powdered body |
| 03/19/1991 | US5000391 Granulator |
| 03/13/1991 | EP0416316A1 Shredder with catching device for the shredded material |
| 02/28/1991 | DE3928020A1 Energy saving mfr. of fine particle cement quicklime - pre-granulation produces 20-40 per cent of final product size which is combined with recirculating stream of milled powder |
| 02/22/1991 | WO1991002638A1 A method for removing, condensing and collecting propellants from foam materials and other materials for which the method is suitable in an environmentally friendly manner |
| 02/22/1991 | CA2064909A1 Method for removing, condensing and collecting propellants from foam materials and other materials for which the method is suitable in an environmentally friendly manner |
| 02/20/1991 | EP0413155A2 Recycling grinding arrangement for fragile material |
| 02/19/1991 | US4993647 Two stage separator apparatus |
| 02/19/1991 | CA1280392C Rotary shredding apparatus |
| 02/07/1991 | DE3924834A1 Finely chopping solids - by intermeshed cutter blades projecting from parallel shafts set in equilateral triangle |
| 02/05/1991 | US4989794 Milling in liquid suspension classification, recycling |
| 01/30/1991 | EP0410043A1 Shredding and fluidization drying apparatus |
| 01/29/1991 | US4988046 A motor |
| 01/29/1991 | CA1279628C Screening device for comminuter for solid material |
| 01/29/1991 | CA1279627C Comminuter for solid material |
| 01/24/1991 | DE3645146C2 Sepg. and cutting plastic dead heads from moulding |
| 01/23/1991 | EP0408589A1 Mobile or stationary disintegrating plant for minerals, in particular for lump-size material |
| 01/16/1991 | EP0407678A1 Feeder for a crusher |
| 01/09/1991 | EP0406591A2 Method and arrangement for milling material to be milled |
| 01/09/1991 | EP0406235A1 A mill |
| 01/08/1991 | US4982905 Apparatus for crushing materials |
| 12/27/1990 | EP0403778A2 Method of operating an arrangement for the breaking up of friable material |
| 12/27/1990 | EP0403608A1 Apparatus and process for drying and comminuting matter |
| 12/26/1990 | CN2068011U Pipe type airflow breaking device |
| 12/25/1990 | US4979684 Jet mill |
| 12/25/1990 | US4979681 Process for grinding and simultaneous drying of moist cellulose ether products |
| 12/20/1990 | DE3919668A1 Fan-type mill with separate dust and vapour outlets - has row of streamlined vanes to separate dust from vapour |
| 12/20/1990 | DE3919416A1 Grinding together a cement mix - whereby the hard and soft components are separately ground before being mixed and sieved |
| 12/19/1990 | EP0403316A1 Shredding machine |
| 12/19/1990 | CN1010831B Vertical roller mill |
| 12/11/1990 | US4976471 Comminuting plastic or wood into smaller pieces |
| 12/11/1990 | US4976469 Roll press |
| 12/05/1990 | EP0400676A2 Medical waste crusher with hot-air sterilizer |
| 11/27/1990 | US4973002 Device for reducing fibrous products |
| 11/27/1990 | US4972998 Method and system for preventing explosions within a solid waste disposal facility |
| 11/15/1990 | DE3915432A1 Standard cement mfr. - using high pressure roller press, sieve and gypsum dehydration heat supply |
| 11/07/1990 | CN1046685A Device for comminution/recovery ore mill |
| 11/06/1990 | CA1275994C Process for preparation of paper-making hydrous silicic acid filler |
| 11/06/1990 | CA1275978C Air conveyor for plastic film |
| 10/31/1990 | CN1010180B Apparatus and method for removing crushing rolls from a crushing apparatus |
| 10/24/1990 | CN2064269U Isolation type beating crusher |
| 10/23/1990 | US4964576 Method and apparatus for mineral matter separation |
| 10/18/1990 | DE4009263A1 Thermoplastic scrap shredder - using cutting combined with impact comminution for scrap of varying hardness |
| 10/17/1990 | CN1010029B System for preparation of coal-water slurry |
| 10/16/1990 | US4962894 Method and assembly for controlling dust within a solid waste disposal system |
| 10/16/1990 | US4962893 Process and device for cold milling |
| 10/03/1990 | EP0390220A2 Use of synthetic surface-active substances and method for milling Portland clinker for the production of gypsumless Portland cements |
| 10/03/1990 | EP0222760B1 Comminution of coal, ores and industrial minerals and rocks |
| 10/02/1990 | US4960461 Method and installation for extracting gold from gold ore |
| 09/30/1990 | CA2013271A1 Method of milling the portland clinker for the production of gypsumless portland cements |