(0)B07B:0/1:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR...
B07B
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B 07

 SEPARATING SOLIDS FROM SOLIDS; SORTING (separation in general B 01 D; wet separating processes, sorting by processes using fluent material in the same way as liquid B 03; using liquids B 03 B, B 03 D; sorting by magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high voltage electric fields B 03 C; centrifuges or vortex apparatus for carrying out physical processes B 04 ; sorting peculiar to particular materials or articles and provided for in other classes, see the relevant classes)

B 07 B

 SEPARATING 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 B 03 B; hand sorting, postal sorting, sorting by switching or other devices actuated in response to detection or measurement of some feature of articles or samples of material B 07 C)
 

Note
 

This subclass covers:
 

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 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, e.g. by a trap opening under an object of a certain minimum weight, by an aperture of graduated size;
 

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 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.

 

 

 
 

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/ 00 Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like

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/ 02 • Hand screens  

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/ 04 • Stationary flat screens  

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/ 06 • Cone or disc shaped screens  

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/ 08 • Screens rotating within their own plane  

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/ 10 • Screens in the form of endless moving bands  

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/ 12 • Apparatus having only parallel elements  

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/ 14 • • Roller screens  

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/ 15 • • • using corrugated, grooved or ribbed rollers [2]  

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/ 16 • • the elements being movable and in other than roller form  

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/ 18 • Drum screens  

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/ 20 • • Stationary drums with moving interior agitators  

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/ 22 • • Revolving drums  

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/ 24 • • • with fixed or moving interior agitators  

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/ 26 • • • with additional axial or radial movement of the drum  

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/ 28 • Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens  

Note
 

Group B 07 B 1/40 takes precedence over groups B 07 B 1/30 to B 07 B 1/38.

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/ 30 • • jigging or moving to-and-fro in or approximately in the direction of conveyance  

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/ 32 • • jigging or moving to-and-fro within their own plane transverse to the direction of conveyance  

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/ 34 • • jigging or moving to-and-fro perpendicularly or approximately perpendicularly to the plane of the screen  

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/ 36 • • jigging or moving to-and-fro in more than one direction  

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/ 38 • • oscillating in a circular arc in their own plane; Plansifters  

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/ 40 • • Resonant vibration screens  

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/ 42 • Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens  

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/ 44 • • Balancing devices  

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/ 46 • Constructional details of screens in general; Cleaning or heating of screens  

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/ 48 • • Stretching devices for screens  

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/ 49 • • • stretching more than one screen or screen section by the same or different stretching means [2]  

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/ 50 • • Cleaning  

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/ 52 • • • with brushes or scrapers  

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/ 54 • • • with beating devices  

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/ 55 • • • with fluid jets [3]  

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/ 56 • • Heated screens  

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/ 58 • • • heated by heated fluid  

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/ 60 • • • heated by flame heating  

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/ 62 • • • heated by direct electric heating  

Separating solids from solids using gas currents
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