Patents
Sitemap › B07 - Separating solids from solids; Sorting › 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 › B07B 7 - Selective separation of solid materials carried by, or dispersed in, gas currents
Patents for B07B 7 - Selective separation of solid materials carried by, or dispersed in, gas currents (3,808)
05/1991
05/28/1991US5018869 Method and apparatus using feed conveying fluid for blending the feed and/or separating debris from the feed
05/21/1991US5016823 Air current classifier, process for preparing toner, and apparatus for preparing toner
05/15/1991CN1051316A Sorting method of rice husk from spent grain fodder
05/02/1991WO1991005616A1 Rotary screen for separating fines from low density particulates
05/02/1991DE4033136A1 Ground limestone sepn. machine - performs sepn. of fine and coarse particles using rotor with vortex generated around it
05/02/1991DE3935509A1 Separating glass powder from gas discharge - passing gas between stack of plates to form mould or former for optical fibre prodn. by CVD process
04/1991
04/23/1991US5009331 Apparatus for separating elongated contaminants from a stream of material
04/09/1991US5006227 Volumetric flow controller for aerosol classifier
04/09/1991US5005770 Sifter for sifting granular material and grinding system having introduction thereinto of such a sifter
04/02/1991US5003891 Pulverized coal combustion method
03/1991
03/06/1991EP0415322A2 Wear indicating device
02/1991
02/19/1991US4993647 Two stage separator apparatus
01/1991
01/31/1991DE3924826A1 Cage type grader for granular materials - has two grading wheels with separate inlets and outlets to give sharply defined grading fractions
01/30/1991CN2070206U Power saving rice bran separater
01/24/1991WO1991000697A1 Pneumatic small lamina bypass
11/1990
11/28/1990CN1047228A Particles grader using gas current, method and apparatus for preparing colour material
11/27/1990US4972957 Virtual impactors for aerosols
11/15/1990DE3915552A1 Fine sifting of light, granular material
10/1990
10/31/1990EP0231327B1 Apparatus for sizing grains between 20 and 300 microns
10/24/1990CN2064272U Stone removing machine by use of principle of gravity separation
10/24/1990CN2064271U Stone removing machine for rubbish
10/17/1990EP0392455A1 Separator
10/17/1990EP0392453A2 Centrifugal separator
09/1990
09/05/1990EP0385499A2 Pulverized coal combustion method
09/04/1990US4953709 Multi-stage means for sorting mixtures of solid materials
08/1990
08/29/1990EP0384101A1 Air classifier for sifting a granular material, and grinding plant employing such a classifier
08/29/1990EP0383871A1 Low velocity air classifier
08/29/1990EP0262124B1 Rotating separator
08/28/1990CA1273318A1 Apparatus for the classifying of powdered bulk materials
08/22/1990EP0383189A1 Device for separating blasting dust from blasting agent
08/22/1990CN1009255B Rotating separator
08/16/1990WO1990009246A1 Air concentrator
08/15/1990CN1009219B Fluid-bed reactor
08/08/1990EP0233194B1 Apparatus for the classification or separation of solid materials
08/01/1990EP0379711A1 Method of sifting fine materials, and apparatus for carrying out the method
07/1990
07/18/1990EP0377826A2 Sifter
07/12/1990WO1990007391A1 Device for crushing and grading bulk materials
07/05/1990DE3844181A1 Einrichtung zum zerkleinern und klassieren schuettfoermiger gueter Means for crushing and classifying schuettfoermiger cargoes
07/03/1990US4938235 Separator for separating tobacco particles from a tobacco/gas mixture
06/1990
06/27/1990EP0374491A2 Sifter
06/19/1990US4935123 Apparatus for the classification or separation of solid materials
06/19/1990US4934900 Assembly forming a cylindrical cage of spaced apart vanes
06/14/1990WO1990006179A1 Method and equipment for processing of particularly finely divided material
06/13/1990EP0373045A1 Portable personal sampler for collecting a given fraction of airborne particles
06/12/1990US4933072 Material classifier
06/12/1990US4932363 Fluidized bed reactor
06/06/1990CA2004657A1 Individual portable sampler to take a specific fraction of suspended solids in an atmosphere
06/05/1990US4930359 Apparatus for preparing samples from a flow of bulk material
05/1990
05/23/1990EP0369594A1 Separator for sorting particulate material
05/23/1990EP0369399A2 Wind sifter
05/23/1990CN1042320A Vacuum-centrifugal precipitation type super corpuscle grading method and its installation
05/14/1990CA2001659A1 Separator for sorting particulate material
05/08/1990CA1268734A1 Sorter for paper pulp suspensions
05/01/1990US4921650 Method and apparatus for liquid treatment of pulp
04/1990
04/25/1990CN1007706B Impeller type winnower with dedusting effect
04/24/1990US4919795 Leakage prevention apparatus for a classifier
03/1990
03/28/1990CN1007323B Screening device for granular materials such as grain and the like
03/14/1990CN2054379U 扬场机 Winnowing machine
02/1990
02/28/1990CN2053546U Split flow multistage winnowing type separator for chaff and crushed rice
02/21/1990EP0178316B1 Cyclone
02/13/1990US4900498 Method for separating elongated contaminants from a stream of material
02/08/1990WO1990000941A1 Low velocity air classifier
02/08/1990DE3826463A1 Air separator
02/08/1990DE3826181A1 Schwerkraftsichter Gravity separator
01/1990
01/23/1990CA1264518A1 Method and apparatus for producing a continuous web
01/17/1990EP0350616A2 Pneumatic classifier for granular or agglomerated material
01/03/1990EP0349490A1 Method and device for preparing granulates
12/1989
12/13/1989CN1037849A Gas current classifying separator
12/12/1989US4885832 Method of making a retrofit side draft classifier
11/1989
11/21/1989US4882042 Floss separating apparatus and method
11/14/1989US4880530 Self-cleaning screening device
11/09/1989DE3814458A1 Air separator
10/1989
10/26/1989DE3812229A1 Circulating-air separator
10/18/1989EP0337238A2 Rotary separator for use in pulverizer
10/10/1989US4872972 Apparatus for classifying particles
09/1989
09/26/1989US4869786 Air classifying process and air classifier
09/21/1989DE3808023A1 Separator
09/21/1989DE3808022A1 Separator
09/13/1989EP0331904A2 Method and apparatus for sampling a flow of bulk materials
09/13/1989EP0331903A2 Device for preparing samples from a flow of bulk materials
08/1989
08/16/1989EP0328074A2 Gas current classifying separator
08/15/1989US4857178 Centrifugal classifier
08/15/1989US4857173 Particle classifier and method
08/03/1989DE3838871A1 Air classifier
08/01/1989US4853112 Low velocity air classifier
07/1989
07/04/1989US4844349 Process for producing toner for developing electrostatic images and apparatus therefor
06/1989
06/15/1989WO1989005200A1 Self-cleaning screening device
06/01/1989DE3800843A1 Turbo air classifier
05/1989
05/17/1989EP0316305A2 Particle classifier
05/17/1989CN2037646U Light-impurity separator
05/16/1989US4830194 Granule inspection apparatus
05/03/1989CN1032647A Pneumatic conveying device capable of extracting flour, gradation and discharging
04/1989
04/26/1989CN1003982B Control method of number of speeds
04/18/1989US4822090 For use in the riverbeds
04/12/1989EP0222802B1 Pneumatic classifying procedure and means
04/04/1989US4818376 Leakage prevention apparatus for a classifier
03/1989
03/29/1989CN1031948A Improvement of cyclone type selective powder machine
03/22/1989EP0307406A1 Fluidized bed reactor.
03/15/1989CN1031664A Gravity classifier
03/14/1989CA1251168A1 Material classifier
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