Class 209/140 - Expanding

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Methods and means in which a vertically flowing gaseous
No. of patents: 19
Last issue date: 09/11/2007

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Number	Title	Issue Date
7267233	In-line classifier for powdered products A classifier for classifying particulates entrained in a flowing stream of gas is configured such that a change of direction of gas flow causes particles to impinge upon a target, heavier particles being trapped in a downwardly extending fluidized trap. The classifi...	09/11/2007
7086216	Machine for gathering ground strewn articles A machine for removing articles strewn on a tract of ground generally consisting of a wheel unit; a support frame mounted on the wheel unit, having means for advancing the machine along the tract of ground; an endless conveyor mounted on the support frame, having me...	08/08/2006
7028847	High efficiency two-stage dynamic classifier A two-stage dynamic classifier (30, 30′) for classifying a pulverized feed material (34, 34′, 38) entrained in an air flow (31) includes a vertically extending housing having a lower feed material inlet (18), an upper feed material outlet (	04/18/2006
6935510	Air separator The invention relates to an air separator for sifting material suspended in a flow of gas having course material and fine material by using a sifting wheel which rotates in a sifting chamber and which has blades fixed on the external periphery thereof. The blade cha...	08/30/2005
6913689	Methods and apparatus for removing sediment from a liquid using pulses of pressurized air Methods and apparatus for removing sediment from a liquid are provided. Pulses of pressurized air are directed into a conduit having an inlet disposed within a first liquid-containing vessel adjacent to (or within) the sediment to cause a slurry of liquid and sedime...	07/05/2005
6206202	Cyclone separator A cyclone separator (1) has an elongated vertical housing (2), whose upper section (3) is equipped with a carrier gas/product inlet (4), a separating wheel (6), and a carrier gas/fine product discharge (7). A lower section (9) of the housing defines an ov...	03/27/2001
5979663	Device for recovering abrasives in water jet cutting systems An assembly for abrasive agent recovery in water jet cutting units including a separator (4) for separating usable abrasive agent from sludge and water and a drying oven (9). A conveyor (6) follows the separator (4) for transporting the overwhelmingly usa...	11/09/1999
5417330	Apparatus for separating tramp material from a pneumatic conveying systgem An apparatus for separating tramp particles from comparatively lighter particles of product being conveyed, both entrained in a fluid stream within a pipeline of a pneumatic conveying system, generally comprising a passageway through which the fluid strea...	05/23/1995
5409118	Open air density separator and method A chamber has an aperture which opens downwardly to the atmosphere and an upwardly opening air return passage. A nozzle-forming duct is inclined upwardly at approximately sixty degrees to the horizontal, and a fan mounted therein directs moving air into t...	04/25/1995
4946653	Process for the simultaneous classification and regulated, continuous discharge of particulate material from fluidized bed reactors Particulate material is discharged continuously from fluidized bed reactors by passing the material emerging at the lowest point of the fluidized bed through a zone which is narrower than the fluidized bed and in which a gas stream flows counter-current t...	08/07/1990
4832700	Process and apparatus for preparing dust-free granular material A fluidized bed apparatus comprises a chamber having a perforated floor, a spray nozzle located in the chamber above the perforated floor, whereby material to be granulated is introduced into the chamber in the form of a solution or dispersion, means for ...	05/23/1989
4511462	Method and apparatus for sorting particulate material A method for separating particulate material into coarse and fine fractions is disclosed by suspending the material in a conveying gas flow having a radially symmetrical flow pattern, radially surrounding the gas suspension with a band of clean gas contai...	04/16/1985
4432867	Method and apparatus for separating particulate materials from fibrous materials In accordance with the present invention, entrained, dense particulate materials are removed from an elongated body of less dense fibrous materials being transported by a moving fluid stream by reducing the velocity of said fluid stream by an amount and f...	02/21/1984
4299693	Separator Disclosed is an apparatus and method for separating a pellet-like product from fines mixed therewith. The apparatus includes a housing having a fines outlet and a product outlet disposed at a lower portion of the housing. An inlet conduit extends into the...	11/10/1981
4282010	Fluidized bed injection assembly for coal gasification A coaxial feed system for fluidized bed coal gasification processes including an inner tube for injecting particulate combustibles into a transport gas, an inner annulus about the inner tube for injecting an oxidizing gas, and an outer annulus about the i...	08/04/1981
4159941	Separator Disclosed is an apparatus for separating a pellet-like product from fines (e.g., dust) mixed therewith. The apparatus includes a vertically disposed housing having an upper fines outlet and a lower product outlet. An inlet conduit passes through the housi...	07/03/1979
4125456	Method and apparatus for separating particulate materials A method and apparatus is provided for separating heavier particulate material from a mixture of light particulate material, heavy particulate material and gas. The apparatus includes a vessel having an outlet at a lower portion thereof wherein particulat...	11/14/1978
3962072	Air separator apparatus A harvester pick-up particularly for retrieving fallen nuts and fruits, such as almonds, oranges and the like, from the ground includes a mobile frame preferably self-propelled or tractor drawn and having a primary rotary brush generally in contact with t...	06/08/1976
3956106	Apparatus and process for the production of grit free finely dispersed pigments An apparatus is provided for removal of grit from a finely dispersed solid containing gas stream serving for the pneumatic conveyance of this material, the apparatus comprising a closed separator housing having a funnel shaped lower portion, a supply tube...	05/11/1976

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Class 209/140 - Expanding