| Patents for B07B 7 - Selective separation of solid materials carried by, or dispersed in, gas currents (3,808) |
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| 02/08/1995 | CN2189011Y Vortex separator |
| 02/01/1995 | EP0636417A2 Coal pulverizer associated with a rotary classifier and method for operating the same |
| 02/01/1995 | EP0636416A2 Roller mill containing therein a rotary classifier |
| 01/18/1995 | EP0634219A1 Method and device for grinding materials of different granular sizes |
| 01/15/1995 | CA2127389A1 Method and apparatus for crushing material of different grain size |
| 01/05/1995 | WO1995000261A1 Method and device for separating heavy particles from a particulate material |
| 01/03/1995 | US5377843 Classifying wheel for centrifugal-wheel air classifier |
| 12/28/1994 | CN2186119Y Turbine ultra-micropowder airstream classification device |
| 12/27/1994 | US5375720 Dry separation of particulate material of different densities |
| 12/21/1994 | CN1096471A Gas stream classifier gas stream classifying method toner production process and apparatus |
| 11/30/1994 | CN2183828Y Fibers grader |
| 11/23/1994 | CN2183223Y High-efficiency powder-sorting machine |
| 11/22/1994 | US5366095 Air classification system |
| 11/22/1994 | US5366094 Wind tunnel for cleaning and classifying solid particle form material |
| 11/22/1994 | US5366093 Apparatus for separating particulate materials |
| 11/16/1994 | CN2182685Y Steady flow and speed-adjustable wind selective machine |
| 11/10/1994 | WO1994025185A1 Separator for sorting of particulate material |
| 11/10/1994 | WO1994025184A1 Separator for sorting of particulate material |
| 10/26/1994 | CN2180344Y Separating screen for cottonseed shell and nut |
| 10/13/1994 | WO1994022599A1 Vortex type air classifier |
| 10/13/1994 | CA2134456A1 Vortex pneumatic classifier |
| 10/11/1994 | US5354002 Double separator for sorting particulate material |
| 10/05/1994 | CN2178567Y Centrifugal pedal winnowing machine |
| 09/29/1994 | DE4309430A1 Method and device for sorting fluffy materials which can be transported by air |
| 09/20/1994 | US5348163 Method and apparatus for separating fine particles |
| 09/14/1994 | EP0463141B1 Spiral winnower |
| 08/24/1994 | EP0611390A1 Coal pulverizer purifier classifier |
| 08/24/1994 | EP0558572B1 Double separator for sorting particulate material |
| 08/18/1994 | WO1994017931A1 Dry fluid substance loading device |
| 08/18/1994 | CA2155544A1 Dry fluid substance loading device |
| 08/17/1994 | CN2174269Y Gravity separator |
| 08/09/1994 | US5336517 Remilling of flour having enhanced moisture content by using controlled speed air flow gives separation into protein-enriched and starch-enriched fractions |
| 08/09/1994 | CA1331364C Multi-stage means for sorting mixtures of solids |
| 08/04/1994 | WO1994016995A1 Fine particle classifier |
| 08/04/1994 | DE4339532A1 Sepn. and grading of solids |
| 08/03/1994 | EP0608902A1 Gas stream classifier, gas stream classifying method, toner production process and apparatus |
| 07/20/1994 | CN2172163Y Air extraction winnowing machine |
| 06/22/1994 | EP0602557A1 Feeder |
| 06/22/1994 | CN2169491Y Bottom draw-out grain selector |
| 06/09/1994 | WO1994012290A1 Rotor for mechanical air classifiers |
| 06/09/1994 | CA2150669A1 Rotor for mechanical air classifiers |
| 06/01/1994 | EP0599088A1 Apparatus for separating heavy particles from a flow of fiber material |
| 05/25/1994 | CN2165939Y Dry type sorting unit of vibrating fluidized bed for fine coals |
| 05/10/1994 | CA2011408C Pulverized coal combustion method |
| 04/27/1994 | CN2163011Y Winnowing machine capable of wide range table screening |
| 04/26/1994 | CA1328847C Centrifugal classifier having a fluid bearing |
| 04/21/1994 | DE4234659A1 Separator for granular material - has cage-type impeller surrounded by ring-shaped separating chamber in which circulating granular material moves radially outwards and is skimmed off into collection pockets on circumference |
| 04/14/1994 | DE4234440A1 Light weight construction centrifugal sieve drum - has two base elements having rotational symmetry, etc., used for removal of oversize particles |
| 04/14/1994 | DE4234172A1 Centrifugal separation of particles from a fluid stream - e.g. from air in a pneumatic conveying system |
| 04/13/1994 | EP0591512A1 Wind tunnel for cleaning and classifying solid particle form material |
| 04/13/1994 | CN1085135A Pneumatic sealing device for powder separator |
| 04/13/1994 | CN1024169C Micropowder size grading apparatus |
| 04/12/1994 | US5301812 Air classifying apparatus with wear reducing deflector |
| 04/03/1994 | CA2099650A1 Isokinetic separator apparatus |
| 03/23/1994 | EP0588543A1 Method of recovering tobacco from stemmery discard |
| 03/15/1994 | US5294002 Air separator with spiral staves |
| 03/15/1994 | CA1327738C Expansion of particulate vegetable material |
| 03/03/1994 | WO1994004634A1 Coal pulverizer purifier classifier |
| 03/01/1994 | US5289921 Elutriation apparatus and method for cleaning granules |
| 02/24/1994 | DE4227178A1 Centrifugal disc for impact pulveriser - comprises divergent profiled channels for removing husks from all sizes of grain or seed |
| 02/23/1994 | EP0583924A2 Elutriation apparatus and method for cleaning granules |
| 02/23/1994 | CN2156952Y Seed-melon seed sorter |
| 02/18/1994 | CA2103612A1 Coal pulverizer purifier classifier |
| 02/16/1994 | CN2155957Y Air power sealing device for powder sorting machine |
| 02/16/1994 | CN2155956Y Vortex powder selecting machine |
| 02/10/1994 | DE4326747A1 Separator sifter, useful for filtering gas currents for optimised gas combustion - comprises outlets for dust-enriched and low dust gas flows with dust side branch part blocked by cover(s) immovably formed and variably adjustable |
| 02/02/1994 | CN2154746Y Rotary expansion super-fineness pulverizer |
| 01/25/1994 | US5281278 Conveying particles in an air flow then removal with channels |
| 01/25/1994 | CA1326471C Low velocity air classifier |
| 01/20/1994 | DE4223762A1 Bulk grain classifier with reduced wear - comprising pre-classifier chamber having inlet for grains and outlet for coarse grains |
| 01/19/1994 | CN2153414Y Automatic control double speed high efficient separator |
| 01/11/1994 | US5277370 Vertical impact mill with coupled material classification |
| 01/04/1994 | US5275631 Centrifuging; aerodynamics |
| 12/29/1993 | CN2150931Y Dry micro-granule classifier |
| 12/28/1993 | US5273163 Centrifugal particle classifier having uniform influx distributor |
| 12/21/1993 | US5271504 Sifter and method of sifting |
| 12/09/1993 | DE4218690A1 Selective thinning of particle collections in aerosols - diverting partial flow from accelerated flow, filtering it and feeding it back before acceleration stage |
| 12/08/1993 | EP0573001A1 Waste recycle system |
| 11/30/1993 | US5266169 Apparatus for separating and recycling cleaning particles for cleaning furnace tubes |
| 11/24/1993 | CN1022806C Sorting method of rice husk from spent grain fodder |
| 11/23/1993 | US5263589 Method of recovering tobacco from stemmery discard |
| 11/11/1993 | WO1993022074A1 Wind tunnel for cleaning and classifying solid particle form material |
| 11/11/1993 | WO1993022026A1 Sifter and method of sifting |
| 11/11/1993 | CA2112231A1 Wind tunnel for cleaning and classifying solid particle form material |
| 10/12/1993 | US5252110 Preferably vertical air separator |
| 09/29/1993 | EP0445149B1 Method and equipment for processing of particularly finely divided material |
| 09/29/1993 | CN2142759Y High-efficiency energy-saving powder selector |
| 09/29/1993 | CN2142758Y Combined multi-stage high-efficiency air powder-selecting machine |
| 09/22/1993 | CN2142373Y Structure of centrifugal screening machine |
| 09/14/1993 | US5244481 Preferably vertical air separator |
| 09/08/1993 | EP0558572A1 Double separator for sorting particulate material. |
| 08/18/1993 | EP0555901A1 Air classification of flour |
| 08/18/1993 | CN2140268Y Miniature powder grader |
| 08/18/1993 | CN2140267Y Supermicro powder classifying unit |
| 08/03/1993 | US5232096 Material dispersion apparatus |
| 07/28/1993 | EP0552837A1 Improved centrifugal particle classifier having uniform influx distributor |
| 06/30/1993 | EP0548137A1 Separator unit |
| 06/16/1993 | EP0546458A1 Classifying rotor for a centrifugal pneumatic separator |
| 06/03/1993 | DE4139132A1 Rotating drum and gas-porous mantle for sepg. particles - esp. fibres from gas and filters the gas by tangential flow around the drum and centrifugal force within the drum |
| 05/27/1993 | WO1993009883A1 Cyclone separator |