| Patents for B07B 13 - Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices (4,324) |
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| 10/03/1989 | US4871393 Apparatus and method for feeding sintering raw mix |
| 09/27/1989 | EP0334825A1 Method and apparatus for sorting round objects |
| 09/21/1989 | WO1989008829A1 Automatic particle-size analyzer with divided drum |
| 09/21/1989 | DE3809339A1 Method and apparatus for dispersing debris in a transfer through a packed bed |
| 09/14/1989 | DE3807229A1 Apparatus for sorting cylindrical bodies |
| 09/13/1989 | EP0332195A2 Drum separator |
| 08/30/1989 | EP0329865A1 Improvements in particle separators |
| 08/30/1989 | CN1035065A Method and apparatus for friction sorting of particulate materials |
| 08/15/1989 | US4857177 Dry separation of solids |
| 08/08/1989 | US4854455 Machine for grading and sorting fish, in particular fish from the salmonidae family |
| 08/08/1989 | US4854454 Apparatus and method for segregating parts |
| 07/27/1989 | WO1989006572A1 Nozzle for screen apparatus |
| 07/25/1989 | US4851110 Air pump separator method and apparatus |
| 07/18/1989 | US4848607 Classifier |
| 07/13/1989 | WO1989006166A1 Method and apparatus for grading and/or sorting seed or grain |
| 06/29/1989 | DE3827256C1 Feed drum for a cutting-off unit |
| 06/27/1989 | US4842144 Grain sorter for use in a rotary type rice hulling and sorting device |
| 06/13/1989 | US4839035 Cylindrical screen separator with spirally arranged clearing and conveying blades |
| 06/13/1989 | US4839033 Apparatus for separating spherical from non-spherical particles |
| 06/13/1989 | US4839031 Process for performing the separation of extruded materials which may or may not show imperfections |
| 06/06/1989 | US4836388 Apparatus for separating material by length |
| 05/23/1989 | US4832205 Vibrator strips with increased spacing sorter |
| 05/16/1989 | US4830699 Process and device for removing objects from the outside of containers |
| 05/10/1989 | CN1032865A Sizing method and device for sphericity of microsize pearls |
| 05/02/1989 | CA1253461A1 Disc assembly with welded discs |
| 04/27/1989 | DE3735175A1 Heavy-light fractioning of household-refuse-like industrial waste |
| 04/25/1989 | US4824559 Rotary air separator |
| 04/19/1989 | EP0312292A1 Fruit grading machine |
| 04/19/1989 | EP0311879A1 A method and device for sizing live fish |
| 04/19/1989 | CN2036069U Nails sorting device |
| 04/18/1989 | US4822090 For use in the riverbeds |
| 04/12/1989 | EP0311220A2 Improvements in or relating to the treatment of multi-phase systems |
| 04/12/1989 | EP0310938A2 Separation device for a harvesting machine |
| 04/04/1989 | US4818379 Screening apparatus with integrated distributing and segregating device |
| 03/23/1989 | WO1989002320A1 Method and apparatus for friction sorting of particulate materials |
| 03/21/1989 | US4814071 Flexible connector for screening machine |
| 03/16/1989 | DE3800816C1 Compost screening machine |
| 03/15/1989 | CN1031664A Gravity classifier |
| 03/14/1989 | CA1251168A1 Material classifier |
| 03/07/1989 | US4809791 Removal of rock cuttings while drilling utilizing an automatically adjustable shaker system |
| 03/07/1989 | CA1250814A1 Apparatus and method for separation of agricultural products from clods and other spurious materials |
| 02/15/1989 | EP0303034A2 Method and device for sorting refuse |
| 02/14/1989 | US4804093 Method and apparatus for mechanically classifying rolling bodies |
| 02/02/1989 | DE3724240A1 Device for sorting parts |
| 02/01/1989 | EP0301798A1 Screening apparatus with tiltable vibratory screen |
| 01/26/1989 | DE3725218A1 Method for sorting refuse mixtures and apparatuses suitable therefor |
| 01/26/1989 | DE3723208A1 Process for removing wires |
| 01/19/1989 | DE3722777A1 Device for sorting out thermoplastic parts from a mixed stream |
| 01/10/1989 | USRE32823 Apparatus and method for segregating parts |
| 01/10/1989 | US4797204 Automatic particle-size analyzer with divided drum |
| 01/03/1989 | CA1247969A1 Seed separating apparatus and method |
| 12/29/1988 | DE3720490A1 Screen device |
| 12/21/1988 | EP0295239A1 Disk screen improvement for chip screening efficiency. |
| 12/13/1988 | US4790439 Grading machine |
| 11/23/1988 | EP0292332A1 Tobacco classifier |
| 10/25/1988 | US4779741 Sorting device |
| 10/25/1988 | US4779740 Particle separating apparatus |
| 10/25/1988 | CA1243752A1 Method and apparatus for detecting and removing foreign material from a stream of particulate matter |
| 10/12/1988 | EP0286381A2 Apparatus and method for feeding sintering raw mix |
| 10/06/1988 | DE3710335A1 Device for separating non-metals and non-ferrous metals from a mixture of materials |
| 10/05/1988 | EP0285226A1 Grading apparatus for agricultural, horticultural and other articles |
| 09/28/1988 | EP0284296A2 Flexible connector for screening machine |
| 09/28/1988 | EP0283769A2 Sieve |
| 09/20/1988 | US4771894 Device for separating materials of value from a mixture |
| 09/08/1988 | DE3706352A1 Process and apparatus for sieving marmalade |
| 09/07/1988 | WO1988006495A1 Grading apparatus for shrimps or other products consisting of discrete objects |
| 08/31/1988 | EP0280127A2 Pneumodensitometric vibrating separator for sorting of heterogeneous bulk products |
| 08/30/1988 | US4767010 Bearing sorting device |
| 08/30/1988 | CA1241297A1 Oleophillic adhesion type separation of minerals using a moving apertured collection barrier |
| 08/25/1988 | DE3804190A1 Apparatus for classifying a flow of particles and use of the apparatus |
| 08/23/1988 | US4765489 Separation wall movement control device for grain sorting machines |
| 08/17/1988 | EP0278624A1 Dry separation of solids |
| 08/17/1988 | EP0278249A2 Apparatus for segregating parts |
| 08/16/1988 | US4763794 Produce sorting apparatus |
| 08/16/1988 | US4763793 Installation for sorting articles by weight and shape |
| 08/02/1988 | US4760925 Refuse sorting apparatus |
| 07/26/1988 | US4760481 Thin film magnetic head having an improved coil |
| 07/20/1988 | EP0274924A1 Method for separating extruded materials with or without defects |
| 07/20/1988 | EP0274479A1 Process for the separation and isolation of shaped catalyst-type particles by length. |
| 07/19/1988 | US4758333 Sieve |
| 07/05/1988 | US4754881 Apparatus for classifying objects according to their lengths |
| 06/29/1988 | EP0272994A1 Machine for grading and sorting fish, especially salmonoids |
| 06/23/1988 | DE3741418A1 Device for sorting out shrimps of a predetermined size from a catch of animals which live in the water |
| 06/21/1988 | US4752009 Apparatus for segregating parts |
| 06/16/1988 | WO1988004184A1 Particle separation |
| 06/01/1988 | EP0182892B1 A method and apparatus for separating metal particles |
| 05/25/1988 | EP0267948A1 Separation method and apparatus |
| 05/24/1988 | CA1237090A1 Loading device for granular material |
| 05/19/1988 | WO1988003445A1 Equipment for the processing of unripe fruit, particularly plums |
| 05/17/1988 | US4744470 Apparatus for separating agricultural produce from spurious matter |
| 05/17/1988 | US4744469 Magnetic cutlery sorting machine |
| 05/11/1988 | EP0267123A1 Plant for the treatment of green fruits, particularly plums |
| 05/04/1988 | EP0265669A2 Sorting machine |
| 05/04/1988 | EP0265543A1 Device for separating injection-moulded parts and runners, or parts having different shapes and sizes |
| 04/27/1988 | CN87210906U Combined fish sieve |
| 04/21/1988 | DE3734360A1 Mobile device for sorting compost constituents |
| 04/19/1988 | US4738774 Spout line buster |
| 04/19/1988 | CA1235397A1 Shared document dispensing system |
| 04/12/1988 | CA1235090A1 Vibrated screen assemblies with feed divider and a conical flow diverter |
| 03/16/1988 | EP0259305A1 Separation of particles of differing densities |