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Class Information
Number: 34/589
Name: Drying and gas or vapor contact with solids > Apparatus > With fluid current conveying of treated material > With plural treating zones or compartments
Description: Subject matter wherein the conveyed material flows through more than one treating area or chamber.

Sub-classes under this class:

Class Number Class Name Patents
34/590 Serpentine path for material 16

Patents under this class:
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Patent Number Title Of Patent Date Issued
8434242 Spray dried human plasma May. 7, 2013
7993595 Apparatus for depositing fluids in a solids flow of a spouted bed apparatus Aug. 9, 2011
7647708 Manufacturing methods for producing particleboard, OSB, MDF and similar board products Jan. 19, 2010
7578073 Appliance for removing fluids and/or solids Aug. 25, 2009
7350318 Continuous thermal treatment of bulk material Apr. 1, 2008
7193032 Controlling the crystallization of polyesters by means of their water content Mar. 20, 2007
7089681 Method and apparatus for filtering and drying a product Aug. 15, 2006
6993857 Milling and drying apparatus incorporating a cyclone Feb. 7, 2006
6865822 Drying system for producing dried singulated cellulose pulp fibers Mar. 15, 2005
6418636 Drier for a lacquering line Jul. 16, 2002
6286229 Method and apparatus for treating a board-like material with a gaseous agent Sep. 11, 2001
6223455 Spray drying apparatus and methods of use May. 1, 2001
6195913 Drying tunnel applicable to fruit and vegetables Mar. 6, 2001
6122842 Particle movement amount controller for fluidized beds Sep. 26, 2000
6000146 Apparatus and method for continuously granulating powder material Dec. 14, 1999
5974688 Apparatus for controlled drying of sludge Nov. 2, 1999
5960563 Extraction and drying apparatus Oct. 5, 1999
5907910 Method for cyclone conversion for a fluidized bed Jun. 1, 1999
5784805 Wood treating apparatus Jul. 28, 1998
5782010 Device for preparing a spray-dried product and method for preparing a product of this kind Jul. 21, 1998
5768800 Powder feed mechanism Jun. 23, 1998
5752327 Particle fluidization method and apparatus therefor May. 19, 1998
5637336 Process for drying malt Jun. 10, 1997
5579588 Method for dosing a particulate phase in a gas/particle flow in a fluidized bed Dec. 3, 1996
5561916 Process and apparatus for efficiently drying wet-milled corn germ and for processing other materials Oct. 8, 1996
5526938 Vertical arrangement fluidized/non-fluidized bed classifier cooler Jun. 18, 1996
5522160 Fluidized bed assembly with flow equalization Jun. 4, 1996
5443539 Particulate dryer Aug. 22, 1995
5440823 Process and apparatus for efficiently drying wet-milled corn germ and for processing other materials Aug. 15, 1995
5406718 Method and apparatus for drying particulate material Apr. 18, 1995
5395596 Fluidized bed reactor and method utilizing refuse derived fuel Mar. 7, 1995
5378434 Fluidized multistaged reaction system for polymerization Jan. 3, 1995
5371955 Bulk-material reactor Dec. 13, 1994
5361513 Method and apparatus for drying and briquetting coal Nov. 8, 1994
5357686 Apparatus for drying a moist particulate material with superheated steam Oct. 25, 1994
5343631 Treatment of friable materials in fluid bed reactors Sep. 6, 1994
5339538 Fluid bed material transfer method Aug. 23, 1994
5332553 Method for circulating solid material in a fluidized bed reactor Jul. 26, 1994
5243770 Fluid bed material transfer apparatus Sep. 14, 1993
5198029 Apparatus for coating small solids Mar. 30, 1993
5158919 Catalyst regeneration in a single stage regenerator converted to a two stage high efficiency regenerator Oct. 27, 1992
5090134 Method and apparatus for continuously crystallizing polyester material Feb. 25, 1992
5075981 Treating matter Dec. 31, 1991
5068979 Apparatus for conditioning particulate material Dec. 3, 1991
5067252 Method and apparatus to conduct fluidization of cohesive solids by pulsating vapor flow Nov. 26, 1991
5024005 Dewatering means Jun. 18, 1991
4970804 Fluidized bed apparatus for the production and/or further treatment of granulate material Nov. 20, 1990
4956271 Material treatment Sep. 11, 1990
4879958 Fluidized bed reactor with two zone combustion Nov. 14, 1989
4862954 Exchanger and method for achieving heat transfer from solid particles Sep. 5, 1989

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