| Patents for B07B 7 - Selective separation of solid materials carried by, or dispersed in, gas currents (3,808) |
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| 03/07/1989 | CA1250815A1 Particle classifier |
| 02/07/1989 | US4802977 Process for size separating toner particles |
| 02/01/1989 | EP0301217A2 Device for separating tabacco particles for a gas/tobacco mixture |
| 01/24/1989 | US4799595 Apparatus for the classifying of powdered bulk materials |
| 01/24/1989 | CA1249245A1 Particle classifier |
| 12/28/1988 | CN88211162U Cereal selective separator by pulsating fluidisation |
| 12/27/1988 | US4793917 Centrifugal classifier for superfine powders |
| 12/20/1988 | US4792393 Spiral air sifter having air regulation |
| 12/01/1988 | DE3741650C1 Apparatus for classifying dust-like bulk materials |
| 11/22/1988 | US4786406 Blades of sintered ceramic; rubbery, elastic inserts for support |
| 11/15/1988 | US4784756 Division of fine, light and coarse, heavy particles by centrifugal force; removal by gas flow |
| 11/15/1988 | US4784333 Fines, classification |
| 11/01/1988 | US4782001 Process for producing toner for developing electrostatic images and apparatus therefor |
| 10/26/1988 | EP0287566A1 Device for dry forming webs. |
| 10/12/1988 | EP0286047A2 Centrifugal sifter |
| 10/11/1988 | US4776950 Classifier |
| 09/21/1988 | CN87204795U Band separator for bran and broken rice |
| 09/20/1988 | US4772255 Method and apparatus for sizing grains smaller than 300μ |
| 08/31/1988 | EP0280127A2 Pneumodensitometric vibrating separator for sorting of heterogeneous bulk products |
| 08/31/1988 | CN87100850A Wind conveyer |
| 08/30/1988 | US4767524 For separating solid and liquid particles in aerosol flow into fine and coarse flow |
| 08/23/1988 | US4765547 Apparatus for separating fiber from fiber aggregate |
| 08/16/1988 | US4763792 Device for sorting out metal particles |
| 08/10/1988 | CN87107207A Process for producing toner powder |
| 08/04/1988 | DE3733343A1 Air classifier for classifying bulk materials of very fine grain size |
| 07/27/1988 | CN86104771B Separator for sorting particulate material |
| 07/13/1988 | CN86108387B Propeller type centrifugal powder selecting machine |
| 07/12/1988 | US4756428 Method and turbo-separator for dispersion air separation, particularly of cement |
| 06/30/1988 | DE3742911A1 Expandiervorrichtung Expander |
| 06/08/1988 | CN86108387A Propeller type centrifigual flour selection machine |
| 05/31/1988 | US4747939 Projecting matter into spiraling fluid stream, separating stream |
| 05/24/1988 | US4746421 Density classification of particulate materials by elutriation methods |
| 05/24/1988 | CA1237094A1 Particulate classifying apparatus |
| 05/11/1988 | EP0266778A2 Apparatus for classifying particles |
| 05/10/1988 | US4742919 Rotating separator |
| 05/04/1988 | EP0265910A2 Process for producing toner powder |
| 04/27/1988 | EP0264761A1 Process for producing toner for developing electrostatic images and apparatus therefor |
| 04/27/1988 | EP0264641A2 Separating apparatus |
| 04/26/1988 | US4740220 Dust detection |
| 04/20/1988 | EP0263914A2 Housing for centrifugal machines or dust separators, and process for producing the housing |
| 04/06/1988 | EP0262124A1 Rotating separator. |
| 03/24/1988 | DE3632069A1 Continuously operating air-jet sieve |
| 03/22/1988 | US4732334 Apparatus for crushing brittle material for comminution |
| 03/17/1988 | DE3729317A1 Continuously operating grinding device having an integral classifying device |
| 03/16/1988 | CN87105301A Separation of mixutres in wind tunnel |
| 03/09/1988 | CN87207129U Coal-selecting device in dry fluidized bed |
| 03/02/1988 | CN86108282B Apparatus for classifying of powdered bulk materials |
| 02/17/1988 | CN86105306A Apparatus for classification of separation of solid materials |
| 01/26/1988 | US4721561 Centrifugal force separator |
| 01/07/1988 | EP0250921A2 Air classifier |
| 01/07/1988 | EP0250747A2 Method of and device for air sifting |
| 12/30/1987 | CN87203919U Airstream-type classifier |
| 12/30/1987 | CN87102561A 旋转式分离器 Rotary separator |
| 12/29/1987 | US4715951 Counterflow pneumatic separator |
| 12/23/1987 | CN87104041A Fluid-bed reactor |
| 12/15/1987 | US4712277 Method and apparatus for producing a continuous web |
| 12/10/1987 | DE3713435A1 Air separator |
| 12/08/1987 | US4711039 Fluidized beds |
| 12/03/1987 | WO1987007356A1 Fluidized bed reactor |
| 12/01/1987 | US4710286 For applying a finish to products |
| 11/25/1987 | EP0246629A1 Screening machine for fluid powdery material |
| 11/19/1987 | EP0246074A2 Process for producing toner for developing electrostatic images |
| 11/11/1987 | EP0244744A2 Centrifugal sifter |
| 10/22/1987 | WO1987006279A1 Rotating separator |
| 10/13/1987 | US4699710 Separator for particulates |
| 10/08/1987 | DE3708914A1 Installation having at least one beating mill |
| 10/07/1987 | CN85108097A Method for controlling revolutions |
| 09/23/1987 | EP0237641A2 Comminuting plant for brittle material |
| 09/15/1987 | US4693811 Separating fine and coarse material |
| 08/26/1987 | EP0233194A1 Apparatus for the classification or separation of solid materials. |
| 08/25/1987 | US4689141 Separator for sorting particulate material, with a plurality of separately adjustable guide vane sets |
| 08/25/1987 | US4689140 In a conveying gas |
| 08/25/1987 | CA1225965A1 Classifier rudder control vane |
| 08/12/1987 | EP0231327A1 Apparatus for sizing grains between 20 and 300 microns. |
| 08/06/1987 | DE3604450C1 Co-current air classifier |
| 08/04/1987 | US4684444 Sorter for paper pulp suspensions including a damping chamber |
| 08/04/1987 | US4684069 Classifier and controller for vertical mill |
| 07/22/1987 | CN86108282A Apparatus for classifying of powdered bulk materials |
| 07/14/1987 | US4680107 Device for separation of the components of edible meals |
| 07/02/1987 | DE3638915A1 Centrifugal air classifier |
| 07/01/1987 | EP0226987A2 Device for classifying powdery bulk material |
| 06/18/1987 | WO1987003626A1 Method and device for dry forming webs |
| 06/16/1987 | US4673492 Gaseous effluent of said mixture and bring in contact with baffles; dentistry; efficient |
| 06/10/1987 | EP0224892A1 Method and apparatus for producing a continuous web |
| 06/03/1987 | EP0224364A2 Method and apparatus for sizing grains smaller than 300 M |
| 06/03/1987 | CN85108583A Separator for sorting particulate material |
| 05/27/1987 | EP0222802A1 Pneumatic classifying procedure and means. |
| 05/21/1987 | DE3540682A1 Zig-zag sifter |
| 05/13/1987 | EP0221246A2 Separator |
| 05/07/1987 | DE3538832A1 Recirculatory air sifter |
| 04/28/1987 | US4661244 Obtaining good predispersion |
| 04/22/1987 | EP0218882A2 Device for sorting metallic particles |
| 04/22/1987 | CN86102345A Impeller type winnower with dedusting effect |
| 04/15/1987 | CN85107428A Propeller-centrifugal machine for powder selection |
| 04/14/1987 | US4657667 Diverting entrained particles by a curved surface to minimize disturbance |
| 03/31/1987 | US4653699 Coal-mill classifier |
| 03/26/1987 | DE3533484A1 Air separator |
| 02/17/1987 | CA1217938A1 Hot gas exchanger for thermal treatment of powdery substances |
| 02/04/1987 | EP0210729A2 Separator for sorting particulate material |
| 02/03/1987 | US4640768 Elutriation apparatus for the purification and separation of powders of different densities |