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SEPERATING 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 (combinations of dry separating apparatus with wet separating apparatus B03B; hand sorting, postal sorting, sorting by switching or other devices actuated in responce to detection or measurement of some feature of articles or samples of material B07C) Definition statement This subclass covers: Apparatus or methods for the separation of solids from solids that include: - Any sorting or grading of bulk material or loose articles fit to be handled like bulk material which results automatically from the construction of the apparatus and properties of the material or articles, e.g. by a trap opening under an object of a certain minimum weight, by an aperture of graduated size.
- Sorting of articles in so far as the same conditions apply, e.g. sorting of timber by passing it over successively longer openings; the articles may or may not be orientated for the purpose of sorting.
- Sieving, screening, sifting or sorting solid materials using networks, gratings, grids or the like.
- Separating solids from solids that are initially a mixture using apparatus or methods that subject the mixture to a gas current, dispenses the mixture within a gas, carries the mixture on a gas current while it is being separated, or uses a gas current on it to cause separation, including combinations of disparate types of apparatus utilizing gas currents in the separation of solids from solids.
- Other types of apparatus for directly controlled dry method grading or sorting of solid materials in a bulk form or of loose articles that are being handled like solid type bulk material, e.g. grading according to size or weight or using momentum effects.
- Constructional features of screens per se, or screens and their driving mechanisms, which are used in dry or wet separating methods.
- Combinations of disparate types of apparatus or methods for separating solids from solids that applicable to bulk material or to loose articles fit to be handled like bulk material.
- Accessories that are specially adapted for, or arranged in conjunction with, the above types of separating, sorting or grading of bulk material or articles.
{Transportable screening plants} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-96/25245 Hand screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: LU-A2-91105 Stationary flat screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A1-2003/0080031 Cone or disc shaped screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-2307428 Screens rotating within their own plate Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: EP-A1-0411803 Screens in the form of endless moving bands Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-5887729 Apparatus having only parallel elements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-7861867 Roller screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-7117996 using corrugated, grooved or ribbed rollers Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: EP-A1-2248602 the elements being movable and in other than roller form Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US3971716 A GB326834 A US5392931 A Stationary drums with moving interior agitators Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-2686273 Revolving drums Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-536054 with fixed or moving interior agitators Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-2568492 with additional axial or radial movement of the drum Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-84/04473 {their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-2258789 {with unbalanced weights} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-B-1176979 {with excentric shafts} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C-948574 jigging or moving to-and-fro {within their own plane} in or approximately in {or transverse to} the direction of conveyance Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A1-4039934 jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: EP-A2-0212378 {with mechanical drive elements other than electromagnets} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-E-RE16701 {with electromagnets} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A1-2120244 jigging or moving to-and-fro in more than one direction Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-03/024626 oscillating in a circular arc in their own plane; plansifters Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C-74002 Resonant vibration screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C1-10054089 Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-2123520 Balancing devices Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C-641512 {constructional details of screening surfaces or meshes} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-B-1022448 {Manufacturing of screening surfaces} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4396503 {Repairing of screening surfaces} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A-92/00133 {Regulation of screen apertures} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-1140961 {Screening surfaces built up of modular elements} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-03/066243 {Corrugated Screening surfaces} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-6340089 {Multi-layer screening surfaces} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A1-2004/0102117 {Woven mesches} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-U1-29501985 {Meshes of intersecting, non-woven, elements} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A1-2880289 {Perforated sheet-like material} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-U1-20018385 Stretching devices for screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-5221008 {Devices for alternately stretching and sagging screening surfaces} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A1-3411719 stretching more than one screen of screen section by the same or different stretching means Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C-608376 {with brushes} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-1059722 {the brushes being rotating} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-U1-20214115 {with scrapers} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4289614 {the scrapers being rotating} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-3863765 with beating devices Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A1-2223079 with fluid jets Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-1193260 Heated screens Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A1-2567776 heated by heated fluid Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-C-870935 heated by direct electric heating Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-E-61502 Separating solids from solids by subjecting their mixture to gas currents (using tables or jigs B03B 4/00) Definition statement This group covers: Illustrative example of subject matter classified in this group: EP-A2-1072800 while the mixtures fall Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-2010/056220 {the material being slingered or fled out horizontally before falling, e.g. by dispersing elements} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-1526050 in cascades Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4568453 using revolving drums Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4207177 while the mixtures are supported by sieves, screens, or like mechanical elements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-U1-202010004167 Selective separation of solid materials carried by, or dispersed in, gas currents (sieves of filters for separating dispersed particles from gases or vapours B01D) Definition statement This group covers: Illustrative example of subject matter classified in this group: EP-A1-1591172 using gravity Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-6883667 by reversal of direction of flow Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4418871 by impingement against baffle separators Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-94/16995 by impingement against sieves Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-95/32811 Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4159942 generated by rotating vanes, discs, drums, or brushes Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A1-19945646 generated by the winding course of the gas stream Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-2006/126577 having air recirculating within the apparatus Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: EP-A2-0073567 with pulsating air currents Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-3421619 Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets Definition statement This group covers: Illustrative example of subject matter classified in this group: US-A1-2002/0175113 Combinations of similar or different apparatus for separating solids from solids using gas currents Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: EP-A1-2206557 Control arrangements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-6883668 Feeding or discharging arrangements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-2553009 Cleaning arrangements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-4913807 {Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-03/013789 {Sorting molded pieces and runners} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A1-2324379 Apparatus for grading using pockets for taking out particles from aggregates Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-748864 according to size Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: DE-A-4410871 using material mover cooperating with retainer, deflector or discharger (B07B 13/065 - B07B 13/075 take precedence) Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-1028638 Apparatus for grading or sorting using divergent conveyor belts or cables Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: GB-A-594867 Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: FR-A-2545385 Apparatus comprising moving article - receiving openings, the size of which varies as they move Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: AU-B-592500 according to weight (B07B 13/10 takes precedence) Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-5301816 using momentum effects Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A1-2006/089326 involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-B1-6382427 {shaking tables (for wet separating B03B 5/04; tables with water impulse B03B 5/70; pneumatic tables B03B 4/02; moving screens B07B 1/28)} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A1-2002117428 {stratification of dry granular material on a continuously travelling surface, e.g. belt conveyor (vanner for wet separation B03B 5/08)} Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-3419143 Feed or discharge arrangements Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: WO-A-03/068406 Control Definition statement This subgroup covers: Illustrative example of subject matter classified in this group: US-A-5024334 Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material (using wet methods B03B 7/00; using gas currents B07B 9/00) Definition statement This group covers: Illustrative example of subject matter classified in this group: BE-A-898799 |

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Last Modified: 10/11/2013