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Class Information
Number: 209/DIG.1
Name: Classifying, separating, and assorting solids >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
209/	Magnetic	0
209/1	Miscellaneous	118
209/10	Treatment subsequent	185
209/11	With heat treatment	235
209/12.1	Plural, diverse separating operations	116
209/127.1	Electrostatic	117
209/132	Fluid suspension	17
209/2	Special applications	167
209/233	Sifting	30
209/3	Precedent preparation of items or materials to facilitate separation	341
209/422	Stratifiers	14
209/45	Adhesion	20
209/509	Sorting special items, and certain methods and apparatus (e.g., pocket type and light responsive sorting, etc.) for sorting any items	44
209/900	Sorting flat-type mail	446
209/901	Froth flotation; copper	5
209/902	Froth flotation; phosphate	11
209/903	Feeder conveyor having opposed grippers	18
209/904	Feeder conveyor holding item by magnetic attraction	7
209/905	Feeder conveyor holding item by suction	44
209/906	Pneumatic or liquid stream feeding item	75
209/907	Magnetic feeder	4
209/908	Item fed by free fall	21
209/909	Item holding feed magazine insertable in sorting apparatus	16
209/910	Feed hopper	25
209/911	Feed means supporting or guiding item moving under influence of gravity	42
209/912	Endless feed conveyor with means for holding each item individually	102
209/913	Screw feed conveyor	18
209/914	Diverse sequential feeding steps	32
209/915	Centrifugal feeder	5
209/916	Reciprocating pusher feeding item	21
209/917	Endless belt pusher feeding item	24
209/918	Swinging or rotating pusher feeding item	16
209/919	Rotary feed conveyor	66
209/920	Vibratory feed conveyor	54
209/921	Reciprocating or oscillating feed conveyor	14
209/922	Miscellaneous feed conveyors	29
209/923	Feed through including at least one endless conveyor	17
209/924	Gravity conveyor moving item from separating station	21
209/925	Driven or fluid conveyor moving item from separating station	33
209/926	Silverware sorter	26
209/927	Cop sorter	47
209/928	Container closure sorter	16
209/929	Fastener sorter	17
209/930	Municipal solid waste sorting	226
209/931	Materials of construction	33
209/932	Fluid applied to items	61
209/933	Accumulation receiving separated items	78
209/934	Moving items to sorting means in spaced relation lengthwise of feed path	36
209/935	Ambulant	27
209/936	Plural items tested as group	30
209/937	Laundry sorting	40
209/938	Illuminating means facilitating visual inspection	56
209/939	Video scanning	137
209/940	Noncondition-responsive sorting by contour	30
209/941	Item carrying bridge raisable to expose discharge opening	11
209/942	Operator selects destination of item	73