| Patents for B07B 7 - Selective separation of solid materials carried by, or dispersed in, gas currents (3,808) |
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| 09/29/1999 | CN2340522Y High performance chaff separator |
| 09/28/1999 | US5957300 Classifier vane for coal mills |
| 09/28/1999 | US5957299 Separator wheel for an air separator |
| 09/23/1999 | DE19811385A1 Granule stream divider for a countercurrent air classifier used for cleaning dust from plastic granules |
| 09/23/1999 | DE19811132A1 Particle separator for gas-entrained bulk material stream, e.g. to remove coarse contaminants from pigment and filler powders or to remove dust from plastic granules |
| 09/22/1999 | CN2339323Y Centrifugal winnowing machine |
| 09/15/1999 | CN2338103Y Large scale, high effect, precision and forced air current type separating and sorting machine |
| 09/15/1999 | CN2338102Y Apparatus for separating and sorting silicon carbide micro powder precisionly |
| 09/01/1999 | CN2335711Y Multifunctional powdered material selective separator |
| 08/26/1999 | DE19811133C1 Method of separation of fibrous plastics particles from gas stream |
| 08/25/1999 | CN2334504Y High-efficient coarse powder separator |
| 08/18/1999 | EP0935502A1 Air classification of animal by-products |
| 08/17/1999 | US5938046 Air separation grader |
| 08/17/1999 | US5938045 Classifying device |
| 08/10/1999 | US5934483 Bi-chamber air classifier with coaxial ascending dispersed feed |
| 08/10/1999 | US5934478 Gas stream classifier and process for producing toner |
| 08/10/1999 | US5934476 Vacuum rotary filtration apparatus |
| 08/04/1999 | EP0933142A2 Method for the pneumatic classification of toner |
| 08/03/1999 | US5931306 Gas current classifier and process for producing toner |
| 08/03/1999 | US5931305 Powder classifier |
| 07/28/1999 | CN2330426Y High-effective flour sifting and dressing machine |
| 07/28/1999 | CN2330425Y Automatic charging winnowing machine |
| 07/27/1999 | US5927510 Particle classification apparatus and processes thereof |
| 07/21/1999 | EP0820355B1 Grader |
| 07/21/1999 | EP0759813B1 Method and apparatus for the classification of solid particles |
| 07/21/1999 | CN2329457Y Powder classifier |
| 07/13/1999 | US5921481 Air classifier with specified truncated cone-like breather pipe |
| 07/13/1999 | CA2036158C Centrifugal air sorter |
| 06/30/1999 | CN2326355Y Double-rotor powder selector |
| 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 |
| 06/02/1999 | DE19751876A1 Fine hair removal process for granulate conveyor line |
| 06/01/1999 | US5908165 Process and apparatus for reprocessing mixed plastics |
| 06/01/1999 | US5908115 Method and apparatus for the classification of solid particles |
| 05/27/1999 | DE19751628A1 Separation of matted fabric from plastic within waste treatment facility |
| 05/19/1999 | CN2319142Y 电力风车 Power Windmill |
| 05/04/1999 | US5899396 For crushing a material |
| 04/20/1999 | US5894935 Method and device to separate a fine-grained solid material into two fractions |
| 04/14/1999 | CN2313675Y Power separator of crasher |
| 04/07/1999 | EP0906891A2 Fine particle classifier |
| 04/07/1999 | EP0800445B1 Process and plant for processing mixed plastics |
| 03/31/1999 | CN2312075Y Machine for separation of plumule of corn |
| 03/30/1999 | US5887725 Classifier having a rotatable dispersion plate |
| 03/11/1999 | WO1999011395A1 Method and device for separating loose materials |
| 03/09/1999 | US5878892 Separating device for precipitating solid particles from the gas flow of a fluidized bed |
| 02/23/1999 | US5873469 Vibrating screener |
| 02/10/1999 | CN2306846Y Inertia coarse grain separator |
| 02/03/1999 | EP0703838B1 Method and device for separating heavy particles from a particulate material |
| 01/26/1999 | CA2010510C Assembly forming a cylindrical cage of spaced apart vanes |
| 01/21/1999 | DE3943733C2 Air separator classifying powders |
| 01/19/1999 | CA2191172C Pulverizer mill high performance classifier system |
| 01/14/1999 | DE19747990A1 Automatic cleaning for sieve body of sifting machine in conveyor flow |
| 01/13/1999 | EP0889760A1 Cyclone separator |
| 12/02/1998 | CN2298877Y Even distribution centrifugal powder selector |
| 12/02/1998 | CN2298876Y High effictive energy saving superfined separator |
| 11/05/1998 | WO1998048950A1 Air separation process and device |
| 11/05/1998 | DE19718158A1 Verfahren und Vorrichtung zum windsichtenden Separieren Method and apparatus for wind sifting separating |
| 11/04/1998 | EP0809534B1 Mineral separator |
| 10/22/1998 | WO1998046371A1 Air classifier with centrifugal action |
| 10/13/1998 | US5819947 Classifier cage for rotating mill pulverizers |
| 10/07/1998 | CN1195303A Air separator and single-rotor separator ball mill with such air separator |
| 09/30/1998 | CN2292618Y Airflow powder separator |
| 09/16/1998 | EP0782477B1 Cyclone separator |
| 09/10/1998 | DE19708956A1 Separator for cement mills etc |
| 08/18/1998 | US5794786 Method and apparatus for sorting solids by airstream |
| 08/13/1998 | DE19645451C1 Transverse filtration process used for separating finest particles from suspensions and aerosols at low or high concentrations |
| 08/11/1998 | US5791490 Separator for particulate materials |
| 08/04/1998 | US5788727 Centrifugal air separator |
| 08/04/1998 | US5788083 Elbow/countercurrent classifier |
| 07/28/1998 | US5785259 Crushing; granulation; separation; classification; selection; recovering |
| 07/21/1998 | US5782364 Device for separating a mixture of objects |
| 07/15/1998 | EP0852963A1 Seperator for the direct centrifuge of the particules of a gaseous mixture and its use in a thermal cracker or FCC unit |
| 07/08/1998 | CN2285696Y High-efficiency anti-dewfall compound powder separator |
| 07/08/1998 | CN2285695Y Axial swirl coarse powder separator |
| 07/01/1998 | EP0850110A1 Air separator and a single-rotor separator ball mill with such an air separator |
| 06/23/1998 | US5769330 Spouted bed wood chip debarker/cleaner |
| 06/18/1998 | WO1998025703A1 Rotary eddy apparatus |
| 06/18/1998 | DE19651876A1 Sieve system for removing foreign matter from gas flows |
| 05/27/1998 | CN2282460Y Airflow buoyancy powder selector |
| 05/06/1998 | CN1180591A Vertical-axis air classifier |
| 04/29/1998 | CN2279963Y Blowing type winnowing machine |
| 04/23/1998 | DE19643068A1 Wind classifier |
| 04/23/1998 | DE19643043A1 Wind classifier |
| 04/23/1998 | DE19643042A1 Wind classifier |
| 04/23/1998 | DE19643023A1 Wind classifier |
| 04/22/1998 | EP0836893A2 Pneumatic classifier with vertical axis |
| 04/22/1998 | CN1179363A 分级机 Grader |
| 04/16/1998 | DE19743491A1 Wind sifter for separation of different grain sizes |
| 04/16/1998 | DE19743490A1 Device for separating grains of different sizes |
| 04/16/1998 | DE19641817A1 Classifier for cement mfr installation |
| 04/16/1998 | DE19640948A1 Device for separation of corn classes in relation to parts of different densities |
| 04/15/1998 | CN2278544Y 电动旋风分离器 Electric cyclone |
| 04/15/1998 | CN2278533Y High-efficiency energy-saving multipass coarse powder separator |
| 04/14/1998 | US5738286 Resin material recovered from industrial wastes of plastic film, method and apparatus for recovering resin material from industrial wastes of plastic film |
| 04/09/1998 | WO1998014281A1 Air classification of animal by-products |
| 04/07/1998 | US5735403 Apparatus for removal of fine particles in material flow system |
| 03/18/1998 | CN1176156A Separator wheel for air separator |
| 03/10/1998 | US5725102 Method and device for separating heavy particles from a particulate material |
| 03/05/1998 | DE19635779A1 Sifter for cold-milled powders |
| 02/11/1998 | EP0758931B1 Reversing counterflow separator |