| Patents for B07B 1 - Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like (18,540) |
|---|
| 09/25/1991 | CN2085263U Pre-stress screen mesh for mud vibrating screen |
| 09/24/1991 | WO1991014516A1 Vertical screening device with feeding screw |
| 09/24/1991 | US5051172 Disc screen for material separation |
| 09/24/1991 | US5051171 Self-cleaning system for vibratory screens |
| 09/24/1991 | US5051170 Two frame elastic screening appartaus having substantially linear relative movement |
| 09/24/1991 | US5051169 Auger-type flour sifter |
| 09/18/1991 | EP0446341A1 Control sieving process and sieve separator for carrying out the process |
| 09/18/1991 | CN2084846U 弹簧筛子 Spring sieve |
| 09/18/1991 | CN2084845U Dry centifugal screen |
| 09/18/1991 | CN2084844U Eccentricity screen |
| 09/18/1991 | CN1013979B Bore screen |
| 09/17/1991 | US5049262 Modular system |
| 09/12/1991 | DE4007409A1 Screening device to remove foreign bodies from sand and soil - has quick change device with elevator and sifting drums set on wheel loader |
| 09/12/1991 | DE4004428A1 Grading and pulverising device for granular materials - has inclined inlet box and relatively displaceable grading grid with inlet |
| 09/11/1991 | EP0445209A1 Use of a metal starting material comprising a substance for controlling the etching factor in photo etching |
| 09/05/1991 | WO1991012735A1 Apparatus for sieving particulate material |
| 09/05/1991 | DE4006513A1 Self-propelled combine-harvester |
| 09/04/1991 | CN2083965U Screening device for mill |
| 09/03/1991 | WO1991012902A1 Integrated screening system for sizing wood chips |
| 09/03/1991 | US5045184 Vibrating screen panel |
| 09/03/1991 | US5045182 Apparatus and method for removing debris from granular material |
| 08/28/1991 | CN2083514U Steel ring net screen sheet |
| 08/28/1991 | CN2083513U Grading rotary screen for white rice |
| 08/22/1991 | DE4021350A1 Paper sorting sieve - consists of drum on horizontal axis to divide the tank into two chambers |
| 08/21/1991 | EP0442222A1 Method and apparatus for wood chip sizing |
| 08/21/1991 | CN2083152U Screening machine for wine lees |
| 08/21/1991 | CN2083078U Movable oscillating grain-screening machine |
| 08/21/1991 | CN2083077U Multi-layer spiral grading apparatus for peanut kernels |
| 08/21/1991 | CN2083076U Double-layer revolving drum screen |
| 08/21/1991 | CN2083075U Portable grading screen for orange and tangerine series |
| 08/20/1991 | US5041212 Efficiency screen plate for screening pulp |
| 08/14/1991 | EP0440747A1 Drilling mud separation system |
| 08/14/1991 | CN2082645U Articulated pod vibration screen |
| 08/07/1991 | EP0439479A1 Screen and method of manufacture |
| 08/06/1991 | US5037537 Wood particle screen |
| 08/06/1991 | US5037536 Vibratory conveying and separating apparatus and related clamping device |
| 08/06/1991 | US5037535 Superposed two frame system elastic screening machine having independent oscillating drives for each frame system |
| 08/06/1991 | CA1287327C Pressure type slit screen |
| 07/31/1991 | CN2081973U Grain-purchasing machine |
| 07/30/1991 | US5035089 Blast media recovery and cleaning system |
| 07/26/1991 | WO1991011268A1 Soil separating apparatus and method |
| 07/24/1991 | EP0438092A1 An apparatus for thickening fibre suspension |
| 07/23/1991 | CA1286637C Screening apparatus for fiber suspensions |
| 07/23/1991 | CA1286633C Disc screen improvement for chip screen efficiency |
| 07/18/1991 | CA2033920A1 Apparatus for thickening fibre suspension |
| 07/17/1991 | EP0293426B1 Installation and process for the dry-grinding of granular foodstuffs and feedstuffs |
| 07/16/1991 | US5032255 Separation devices for separating particulate material |
| 07/16/1991 | US5032254 Litter box cleaning apparatus and method therefor |
| 07/16/1991 | US5032210 Apparatus for the manufacture of tension screens |
| 07/16/1991 | US5031845 Method and device for the grinding and separating of grain |
| 07/11/1991 | WO1991009660A1 Multistage filtration apparatus |
| 07/10/1991 | CN2080425U Dual-purpose cycle shovel for screening machine |
| 07/03/1991 | WO1991010008A1 Improved efficiency screen plate for screening pulp |
| 07/03/1991 | EP0435359A1 Bulk hopper device for agricultural products |
| 07/03/1991 | EP0435303A2 Vibratory sieve |
| 07/02/1991 | US5028324 Stretching mechanism for a screen |
| 07/02/1991 | US5028316 Mounting system for screen rails |
| 07/02/1991 | CA1285526C Drum screen |
| 06/28/1991 | WO1991010009A1 Improved wear screen plate and method of manufacture thereof |
| 06/27/1991 | DE3942591A1 Fibre suspension sorting sieve body - has carrier rings with grooves to hold the sieve rods for strength with simple assembly |
| 06/27/1991 | DE3942484A1 Sorting machine with rotation-symmetrical sieve drum - which has several axial bearing points with counter-bearing member |
| 06/26/1991 | CN2079534U Hf screen for removing barnyard grass |
| 06/19/1991 | EP0432958A1 A method of making a seamless screen cylinder |
| 06/19/1991 | CN2079091U Moveable screening machine |
| 06/18/1991 | US5024335 Automatic sorter |
| 06/18/1991 | CA2005866A1 Coins control device |
| 06/18/1991 | CA1284977C Recovery of useful materials from refuse fuel ash |
| 06/13/1991 | WO1991008059A1 Sifting apparatus |
| 06/11/1991 | CA1284785C Screening apparatus with integrated distributing and segregating device |
| 06/04/1991 | US5021150 Sieve drum for sieving out waste or the like |
| 05/30/1991 | WO1991008058A1 Disk screen with compressible spacers and flanged surrounds |
| 05/29/1991 | CN2077759U Horizontal twin-axial oscillating sieve making sifting with equal thinkness |
| 05/29/1991 | CN2077758U Three dimensional shock powder-sifting and filtering machine |
| 05/28/1991 | US5019248 Apparatus for grading fibrous material |
| 05/22/1991 | EP0428183A2 Apparatus for milling and separating kernels |
| 05/22/1991 | EP0427888A2 Spiked sorting roller comprising bars and sieve plates |
| 05/16/1991 | WO1991006381A1 Screen spray system |
| 05/15/1991 | CN2076886U Batch fed device |
| 05/15/1991 | CN2076885U Screen mesh-changing centrifugal powder-lifting unit |
| 05/08/1991 | EP0426316A1 Dual-screen particle sizing apparatus and method |
| 05/08/1991 | EP0419585A4 Modular system |
| 05/07/1991 | US5012933 Machine and method for sorting out over-thick wood chips |
| 05/07/1991 | US5012688 Sizing apparatus and proportional spacing mechanism |
| 05/03/1991 | CA2027511A1 Dual-screen particle sizing apparatus and method |
| 05/02/1991 | WO1991005617A1 Riddle for material to be sieved |
| 05/02/1991 | WO1991005616A1 Rotary screen for separating fines from low density particulates |
| 05/02/1991 | EP0425396A1 Method and device for treating waste in order to recover organic material |
| 05/01/1991 | CN1050996A Drum screen with direction adjustment |
| 04/30/1991 | US5011089 Dispersing process and stirred ball mill for carrying out this process |
| 04/30/1991 | US5011065 Screen basket and method of manufacture |
| 04/30/1991 | US5011026 Solid waste disposal screening apparatus |
| 04/28/1991 | CA2028308A1 Waste processing for organic matter recovery and apparatus for same |
| 04/25/1991 | WO1991006380A1 Wood particle screen |
| 04/24/1991 | EP0423606A1 Process for the preparation of domestic, industrial or similar waste for the extraction of cellulose materials |
| 04/24/1991 | CN2075554U Multi-purpose sorting sieve |
| 04/24/1991 | CN2075553U Sand stone sieve sorting machine |
| 04/24/1991 | CN1050832A Hand rotary speed increase bolting mill |
| 04/18/1991 | WO1991004802A1 Control sieving process and sieve separator for carrying out the process |
| 04/18/1991 | DE3934295A1 Siebmaschine fuer den durchlauf von siebgut Screening machine for the passing of screenings |
| 04/17/1991 | CN1012343B Flat sieve top sieve check |