| Patents for B07B 4 - Separating solids from solids by subjecting their mixture to gas currents (2,793) |
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| 07/29/1992 | CN2111145U Grain separator |
| 07/23/1992 | DE4101566A1 Suction device for purifiers - has grid bars beneath barbed roller ensuring break-up of compacted fibres |
| 07/15/1992 | CN1062705A Apparatus for separating material in fluidized bed form and detection of clogging |
| 07/02/1992 | DE4040561A1 Dust removing and/or sorting granular material in air stream - exhaust air through top charge aperture next to material for feed into air swirl flows |
| 07/01/1992 | EP0493279A1 Apparatus for separating a fluidized material and for detecting clogging |
| 07/01/1992 | EP0492925A2 Method and apparatus for separation of heavy and light particles from particulate material |
| 07/01/1992 | EP0492924A2 Method and apparatus for separation of heavy and light particles from particulate material |
| 06/24/1992 | EP0491278A2 Method and device for dedusting and/or classifying granular or fibrous material in an air stream |
| 06/23/1992 | CA1304039C Blowing device for elimination of compactions in bulk material storage silos |
| 05/13/1992 | EP0484758A2 Apparatus for dispersing materials |
| 05/07/1992 | DE4035160A1 Rising sifter for loose bulk material - has accurately controlled flow speed through by=pass and measuring probes |
| 05/05/1992 | US5110453 Split feed reject claimer |
| 04/28/1992 | US5107632 Device for separating blasting dust from blasting agent |
| 04/21/1992 | US5106487 Parts separator device for separating heavy materials from chips and lubricants |
| 04/16/1992 | WO1992005882A1 Method and device for separating heavy particles from a particulate material |
| 04/15/1992 | CN2101532U Composite type dry separator |
| 04/14/1992 | US5103981 Particle separator/classification mechanism |
| 04/09/1992 | DE4125236A1 Procedure for separation of flow of heterogeneous materials |
| 04/08/1992 | EP0479549A2 Apparatus for separating threshed leaf tobacco and method |
| 03/31/1992 | US5099863 Apparatus for separating threshed leaf tobacco |
| 03/18/1992 | EP0474693A1 Apparatus and method for processing inhomogeneous material such as tobacco |
| 03/18/1992 | CN2098973U Hand-driven winnower |
| 02/25/1992 | US5091077 Trommel material air classifier |
| 02/05/1992 | EP0469270A2 Method for recovering PVC and urethane foam from automotive interior trim waste |
| 02/04/1992 | CA2043999A1 Method for recovering pvc and urethane foam from automotive interior trim waste |
| 02/01/1992 | CA2048182A1 Procedure for separation of a flow of heterogeneous materials into two flows with different physical characteristics, particularly suitable for treating solid municipal, commercial and/or industrial wastes, and machine for its appli ation |
| 01/01/1992 | CN2091726U Movable grain cleaner-separator |
| 12/18/1991 | EP0461457A2 Apparatus for sorting solids |
| 12/17/1991 | US5073252 Pneumatic size separator for nickle-containing particles |
| 12/13/1991 | CA2043485A1 Method and apparatus for sorting solids |
| 11/28/1991 | DE4017069A1 Removing dust from building rubble - involves suction pipe to remove dust and light material |
| 11/27/1991 | CN1014870B Simple-and double-platen stone separator |
| 11/27/1991 | CN1014869B Gravity classifier |
| 11/21/1991 | EP0456913A1 Suction-sifter |
| 11/16/1991 | WO1991017835A1 System for separation of materials using suction air power |
| 11/12/1991 | US5063944 Method and apparatus for separation of objectionable particles from tobacco material |
| 11/12/1991 | CA1291968C Apparatus with a fluidized bed for the continuous separation of two mixed solid phases |
| 10/22/1991 | CA1291067C Apparatus for the classification or separation of solid materials |
| 10/16/1991 | EP0451290A1 Vibration grinding classifier |
| 10/02/1991 | DE4009981A1 Ascertaining amt. of useful product in mixt. - removing unwanted components by washing and measuring mass by measuring vol |
| 10/02/1991 | CN2085683U Double-duct bran removing device for rice mill |
| 09/17/1991 | US5048693 Method and apparatus for sorting articles with small density differences utilizing a flotation stream |
| 09/16/1991 | CA2038294A1 Manufacture of bonded particle boards |
| 09/05/1991 | WO1991012892A1 Vertical impact mill with coupled material screening |
| 08/27/1991 | US5042725 Method for recovering PVC and urethane foam from automotive interior trim waste |
| 08/27/1991 | CA1288081C Rotating separator |
| 07/30/1991 | US5035331 Method and apparatus for removing dust and debris from particulate product |
| 07/30/1991 | US5035089 Blast media recovery and cleaning system |
| 07/25/1991 | WO1991010611A1 Improvements relating to conveying and separation apparatus |
| 07/25/1991 | CA2074191A1 Conveying and separation apparatus |
| 07/17/1991 | EP0293426B1 Installation and process for the dry-grinding of granular foodstuffs and feedstuffs |
| 07/16/1991 | US5032256 Method and apparatus for air separation of material |
| 07/11/1991 | WO1991009687A1 Method and apparatus for air separation of material |
| 07/03/1991 | CN1013031B Gas current classifying separator |
| 07/03/1991 | CN1013030B Air current boundary layer method for pneumatic gulch-gold separation and pneumatic separation machine |
| 07/02/1991 | US5027953 Pneumatic plant-blade-from-stem separator |
| 06/26/1991 | CN2079535U Electric fan type windwill |
| 06/25/1991 | US5025929 Air classifier for light reusable materials separation from a stream of non-shredded solid waste |
| 06/13/1991 | WO1991008059A1 Sifting apparatus |
| 06/11/1991 | US5022982 Rotary drum solid waste air classifier |
| 06/04/1991 | US5021149 Process and device for processing granulated materials |
| 05/16/1991 | WO1991006370A1 Vibration grinding classifier |
| 05/15/1991 | EP0427679A2 Device for fractionating granular goods |
| 05/08/1991 | CN2076458U Gravity corn plumule extractor |
| 05/02/1991 | WO1991005616A1 Rotary screen for separating fines from low density particulates |
| 04/30/1991 | US5011087 Method of and apparatus for continuously treating comminuted synthetic plastic containers and products having contaminants bonded thereto for recycling purposes |
| 04/24/1991 | EP0423208A1 Pneumatic separation of particulate material. |
| 03/12/1991 | US4998675 Solid waste processing unit |
| 02/20/1991 | EP0413503A1 Method and apparatus for removing dust and debris from particulate product |
| 02/12/1991 | US4991721 Automation of an air-screen seed cleaner |
| 02/07/1991 | CA2002696A1 Air classifier for light reusable materials separation from a stream of non-shredded solid waste |
| 02/05/1991 | US4989464 Method and apparatus for determining particle size distribution |
| 01/29/1991 | US4988044 Magnetic separation; surge hopper; comminution; air classification aspirator; detinning |
| 01/25/1991 | CA2017428A1 Method and apparatus for determining particle size distribution |
| 01/01/1991 | US4981581 Dust collection hood for sand reclaimer, cooling, and blending rotary drum |
| 12/29/1990 | WO1991000146A1 Method and apparatus for sorting articles with small density differences utilizing a flotation stream |
| 12/25/1990 | US4979622 Portable hull separator |
| 12/19/1990 | CN2067610U Waterless rice washer |
| 12/05/1990 | CN2066773U Manual grain quality sorting machine |
| 11/29/1990 | DE3912978C1 Transverse flow classification system - uses water jets directed upward and producing fan spray pattern |
| 11/27/1990 | WO1990014020A1 Apparatus and method for processing inhomogeneous material such as tobacco |
| 11/27/1990 | CA2058290A1 Apparatus and method for processing inhomogeneous material such as tobacco |
| 11/20/1990 | US4971684 Compact machine and process for preparation prior to dry-grinding of grain type foodstuffs and feedstuffs |
| 11/20/1990 | CA1276509C Particle displacement |
| 11/07/1990 | EP0395675A1 Method and apparatus for classifying particles |
| 10/31/1990 | EP0394344A1 Method and apparatus for grading and/or sorting seed or grain |
| 10/31/1990 | EP0231327B1 Apparatus for sizing grains between 20 and 300 microns |
| 10/24/1990 | CN2064271U Stone removing machine for rubbish |
| 10/17/1990 | EP0392455A1 Separator |
| 10/17/1990 | EP0392453A2 Centrifugal separator |
| 10/04/1990 | DE3909721A1 Fines and superfines separator for use in the regeneration of used foundry sand |
| 09/26/1990 | CN1045537A Air current boundary layer method for pneumatic gulch-gold separation and pneumatic separation machine |
| 09/20/1990 | WO1990010506A1 Particle separation and classification mechanism |
| 09/19/1990 | CN1009620B Apparatus and method for cleaning particle food and fodder in dry way |
| 09/18/1990 | US4957010 Method and apparatus for determining particle size distribution |
| 09/04/1990 | US4953709 Multi-stage means for sorting mixtures of solid materials |
| 08/29/1990 | EP0262124B1 Rotating separator |
| 08/28/1990 | CA1273318A1 Apparatus for the classifying of powdered bulk materials |
| 08/22/1990 | EP0383189A1 Device for separating blasting dust from blasting agent |
| 08/22/1990 | CN1009255B Rotating separator |