| Patents for B07B 4 - Separating solids from solids by subjecting their mixture to gas currents (2,793) |
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| 08/11/1999 | CN1044575C Apparatus for selecting waste bottles |
| 08/10/1999 | US5934482 Separation apparatus and method for granular material |
| 08/10/1999 | US5934477 Separation apparatus and method for granular material |
| 08/10/1999 | CA2113368C Aeraulic separator, particularly for sorting waste |
| 08/04/1999 | EP0932455A1 Air density system with air recirculation and gyrating bar feeder |
| 08/04/1999 | CN2331446Y Axial closed dressing machine |
| 07/08/1999 | WO1999033580A1 Separation using air flows of different velocities |
| 06/30/1999 | CN2326354Y Fixed wall cyclone pneumatic grader |
| 06/24/1999 | WO1999019373A3 Method and device for extracting rubber from gaseous phase polymerization |
| 06/24/1999 | DE19740013C1 Bulk material sieve |
| 06/23/1999 | EP0923996A2 Method for sifting bulk material |
| 06/17/1999 | DE19754453A1 Pneumatic separator for cleaning or sifting particulate matter by mass/surface area ratio |
| 06/08/1999 | CA2160062C Vertical arrangement fluidized/non-fluidized bed classifier cooler |
| 06/02/1999 | EP0919294A1 Method for the protein enrichment for cereals, in particular grain and pulses |
| 06/02/1999 | EP0918573A1 Air classifier with centrifugal action |
| 06/01/1999 | US5908165 Process and apparatus for reprocessing mixed plastics |
| 05/27/1999 | DE19751885A1 Treatment of mixed municipal and commercial waste |
| 05/27/1999 | DE19751627A1 Separator for materials of different densities from heterogeneous mixtures |
| 05/19/1999 | CN2319142Y 电力风车 Power Windmill |
| 05/06/1999 | EP0912310A1 Process and system for treatment of mixed plastic materials |
| 04/22/1999 | WO1999019373A2 Method and device for extracting rubber from gaseous phase polymerization |
| 04/22/1999 | CA2306168A1 Method and device for extracting rubber from gaseous phase polymerization |
| 04/20/1999 | US5894934 Machine and method for separating recyclable matter |
| 04/20/1999 | CA2119653C Apparatus/method for uniform fluidized bed sorting |
| 04/15/1999 | DE19744708A1 Discharge of polymer particles from gas phase polymerisation reactor |
| 04/14/1999 | CN2313674Y Horizontal blow separator |
| 04/07/1999 | EP0800445B1 Process and plant for processing mixed plastics |
| 03/11/1999 | WO1999011395A1 Method and device for separating loose materials |
| 03/03/1999 | EP0783380B1 Low velocity air density separator |
| 03/02/1999 | US5875898 Compost purification method and apparatus |
| 02/17/1999 | CN2307636Y Graded cleaning machine for removing impurity of grain |
| 02/16/1999 | US5871103 Device and process for the separation and classification of particles forming granular product |
| 02/11/1999 | DE19833128A1 Method and equipment for grading lumps of rock |
| 02/11/1999 | DE19732107A1 Rising pipe air separator with zigzag channels |
| 02/10/1999 | EP0608293B1 Apparatus/method for uniform fluidized bed sorting |
| 01/27/1999 | CN2305255Y Separator for straw and grain |
| 01/20/1999 | EP0891820A2 Pneumatic separator |
| 01/19/1999 | US5860531 Cereal separator using size and specific gravity grading |
| 01/13/1999 | CN2303689Y Different-specific-gravity winnowing carbon-ash seperation apparatus |
| 12/30/1998 | EP0887106A1 Closed-circuit milling device with a high-pressure roller press and separator |
| 12/24/1998 | DE19726336A1 Separating plant for removing lightweight film pieces from a scrap mixture |
| 12/22/1998 | CA2126164C Method and arrangement for processing or reprocessing waste material accumulating in the production or processing of cigarettes |
| 12/16/1998 | EP0883448A1 Air-cooled electric motor installation |
| 12/08/1998 | US5845561 Apparatus for preparing a coffee beverage |
| 12/02/1998 | CN2298876Y High effictive energy saving superfined separator |
| 11/25/1998 | CN1199655A Short-path instant flour producing process |
| 11/18/1998 | CN2297253Y Portable fanning mill for grain |
| 11/03/1998 | US5829597 Air density system with air recirculation and gyrating bar feeder |
| 10/29/1998 | DE19717514A1 Preparation equipment for dried vegetables using vibratory sieve |
| 10/22/1998 | WO1998046371A1 Air classifier with centrifugal action |
| 10/07/1998 | EP0868226A2 Apparatus and method for waste recycling and conversion |
| 10/07/1998 | CN2293394Y Refuse separator |
| 09/30/1998 | CN2292612Y Heavy impurity vibration catching remover |
| 09/16/1998 | CN2291221Y Wind-guiding classification discharging screen |
| 09/02/1998 | CN2289615Y Winnowing machine |
| 08/27/1998 | WO1998019973A3 Systems and process for recycling glass fiber waste material into glass fiber product |
| 08/19/1998 | CN2288004Y Buckwheat processor |
| 08/18/1998 | US5795479 Apparatus and method for waste recycling and conversion |
| 08/18/1998 | US5794786 Method and apparatus for sorting solids by airstream |
| 08/18/1998 | CA2229667A1 Particle conditioning method and apparatus |
| 08/18/1998 | CA2083055C System for separation of materials using suction air power |
| 08/05/1998 | EP0855941A1 A device and apparatus for classification and separation of particles in cereal milling process |
| 07/30/1998 | DE19702738A1 Pneumo-separator, e.g. cleaning machine for grain, seeds and minerals |
| 07/30/1998 | DE19702253A1 Plant separating mixed materials on both specific gravity and grading differences |
| 07/29/1998 | CN2286652Y Purifying-recovering machine for wheat grains |
| 07/16/1998 | DE19700471A1 Simple, horizontal air classification plant separating mineral matter from lignite |
| 07/15/1998 | CN2286079Y Electric separator for grains |
| 06/23/1998 | US5769333 Method of and apparatus for recovering foaming gas of the foamed material |
| 06/04/1998 | DE19703577A1 Method for treating lighter shredded fractions from scrap vehicles |
| 06/04/1998 | DE19700269C1 Sand drying and cleaning drum |
| 06/02/1998 | US5758778 To separate and remove contaminants from grain |
| 05/28/1998 | DE19648841A1 Separator for granular materials |
| 05/27/1998 | CN1182644A Pneumatic separator for extracting heading breeze from metal ore |
| 05/14/1998 | WO1998019973A2 Systems and process for recycling glass fiber waste material into glass fiber product |
| 05/13/1998 | EP0760713B1 Device and process for separating and qualifying particles forming a granular product |
| 05/07/1998 | DE19645481A1 Cleaning device for thresher |
| 05/06/1998 | CN2280566Y Honeysuckle-flower impurity-removing separator |
| 05/05/1998 | CA2058123C Method and apparatus for separation of heavy and light particles from particulate material |
| 04/30/1998 | WO1998017404A1 Air density system with air recirculation and gyrating bar feeder |
| 04/22/1998 | EP0649349B1 Process and device for sifting a stream of bulk materials |
| 04/21/1998 | US5740918 Apparatus and method for density separation of plastics |
| 03/31/1998 | US5732829 Separation apparatus and method for granular material |
| 03/19/1998 | DE19637489A1 Cascade sorter |
| 03/17/1998 | US5727690 Method and apparatus for processing leafy vegetables |
| 03/05/1998 | DE19606125A1 Dry separation of materials having different melting points |
| 03/03/1998 | US5722542 Machine and method for separating recyclable matter |
| 02/26/1998 | DE19634291A1 Recovering fines from a particulate material |
| 02/11/1998 | CN1173155A Dietmar Guschall, Meiner Guschall, A. Helmerth, et al. (DE) |
| 01/28/1998 | CN2273220Y Circulation wind separating stone-removing machine for cereal |
| 01/15/1998 | WO1998001276A1 Process and system for treatment of mixed plastic materials |
| 01/15/1998 | DE19629473A1 Separation of recovered plastics mixture into light and heavy material |
| 01/15/1998 | DE19629470A1 Recycling processes for plastic material mixtures used for extracting rigid plastics, etc. |
| 01/08/1998 | DE19637550A1 Processing composites of solid organic, inorganic, metallic and mineral materials in flowing stream |
| 01/08/1998 | DE19626139A1 Separating device for mixture of loose bulk materials with different weights |
| 01/06/1998 | US5704558 Automated recycling center for aluminum cans |
| 12/31/1997 | CN1168818A Cereal separation apparatus |
| 12/10/1997 | CN1167017A Fluid-bed separator |
| 11/18/1997 | CA2089224C Air classification of flour |
| 11/11/1997 | US5685434 Vertical drop product cleaner |
| 10/30/1997 | DE19616032A1 Shredding and sorting of different plastics containing other materials and process equipment |