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Class Information
Number: 34/576
Name: Drying and gas or vapor contact with solids > Apparatus > With fluid current conveying of treated material
Description: Subject matter wherein the treated material is moved by a fluid flow from one part of the apparatus to another, the arrangement being such that the material would not be so transported in the absence of the fluid flow.










Sub-classes under this class:

Class Number Class Name Patents
34/577 Downward fluid flow impinging solid floor 20
34/587 Gas or vapor presses material against screen or sieve 14
34/578 Having tubular heat exchanger 50
34/594 Using rotary gas current 60
34/580 With additional conveying means 39
34/588 With baffle or deflector to adjust material flow 61
34/591 With material separator 72
34/586 With means to agitate or comminute material 55
34/579 With means to vary gas or vapor flow 44
34/593 With mechanical rotating element 25
34/589 With plural treating zones or compartments 73
34/582 With specific gas distributor 114


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8177959 Treatment of hydrocarbon fluids with ozone May. 15, 2012
7938271 Method for preparing powdered still slops, resulting material and facility for preparing such powdered still slops May. 10, 2011
7895769 Method and a plant for thermally drying wet ground raw meal Mar. 1, 2011
7867376 Treatment of hydrocarbon fluids with ozone Jan. 11, 2011
7578073 Appliance for removing fluids and/or solids Aug. 25, 2009
7487601 Process and system for drying and heat treating materials Feb. 10, 2009
7360322 Non-contacting conveyance equipment Apr. 22, 2008
7350318 Continuous thermal treatment of bulk material Apr. 1, 2008
7225819 Apparatus process and method for mounting and treating a substrate Jun. 5, 2007
7134222 Transfer apparatus Nov. 14, 2006
7024800 Process and system for drying and heat treating materials Apr. 11, 2006
6996918 Device and method for treating a refuse material containing hydrocarbons Feb. 14, 2006
6993856 Apparatus for producing powder from biomaterials Feb. 7, 2006
6974505 Tool for cleaning substrates Dec. 13, 2005
6942887 Coffee roaster and method Sep. 13, 2005
6941676 Apparatus for freeze-drying foodstuffs and medicaments Sep. 13, 2005
6910285 Process to produce dried singulated cellulose pulp fibers Jun. 28, 2005
6892475 Device for treating powder particles by rotary flow May. 17, 2005
6845571 Spray-drying installation and a method for using the same Jan. 25, 2005
6770315 Coffee roaster having multiple roasting stages Aug. 3, 2004
6754979 Device for drying and thermally treating granulates with an inert gas stream Jun. 29, 2004
6732454 Apparatus for extracting solvent from a mass of vegetable particles May. 11, 2004
6612049 Preheating and drying device Sep. 2, 2003
6607768 Coffee roasting methods Aug. 19, 2003
6584701 System, apparatus, and method for reducing moisture content of particulate material Jul. 1, 2003
6558726 Coffee bean roasting apparatus May. 6, 2003
6470595 Process and device for continuously drying protein-containing sludge Oct. 29, 2002
6444038 Dual fritted bubbler Sep. 3, 2002
6212794 Gaseous fluidization aids Apr. 10, 2001
6148541 Fluid-bed drying unit, particularly for drying tobacco Nov. 21, 2000
6147327 Hot shelf tower dryer for a cotton gin using heating elements Nov. 14, 2000
6125552 Side discharge assembly for a fluid bed processing system and method thereof Oct. 3, 2000
6065226 Coffee roaster filter, chaff collector and smoke reducer May. 23, 2000
6023855 Air-assisted wiping device Feb. 15, 2000
6021582 Temperature control of parylene dimer Feb. 8, 2000
5996480 Apparatus for roasting coffee beans Dec. 7, 1999
5989305 Feeder of a solid organometallic compound Nov. 23, 1999
5940987 Heat exchanger with concentric tubes Aug. 24, 1999
5879618 Apparatus for treating fine ore Mar. 9, 1999
5768800 Powder feed mechanism Jun. 23, 1998
5765381 Multitier crossflow cryogenic freezer and method of use Jun. 16, 1998
5656157 Separation of components of mixtures Aug. 12, 1997
5647142 Apparatus and process for drying a moist material dispersed or dispersible in a stream of drying gas Jul. 15, 1997
5611935 Method and device for treating sludge Mar. 18, 1997
5606861 Crossflow cryogenic freezer and method of use Mar. 4, 1997
5584131 Drier with shortened restart Dec. 17, 1996
5573802 Coffee roaster oven chamber Nov. 12, 1996
5553395 Bubbler for solid metal organic source material and method of producing saturated carrying gas Sep. 10, 1996
5500237 Removable coffee roaster oven chamber Mar. 19, 1996
5450936 Device for distributing powdery materials Sep. 19, 1995

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