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Class Information
Number: 34/191
Name: Drying and gas or vapor contact with solids > Apparatus > Reversible or pulsating treating gas or vapor flow
Description: Apparatus having either, or both, (1) means to cause the contact gas or vapor to pulsate, or (2) means to cause the contact gas or vapor to flow into contact with the material being treated first in one direction and then in an opposite direction at the same place.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8256134 Drying apparatus and methods for ethanol production Sep. 4, 2012
8048205 Lint filter device and method for cleaning a lint filter device Nov. 1, 2011
7984566 System and method employing turbofan jet engine for drying bulk materials Jul. 26, 2011
7937850 Methods and apparatus for drying condensed distiller's solubles (CDS) to produce dried distiller's solubles (DDS) May. 10, 2011
7225819 Apparatus process and method for mounting and treating a substrate Jun. 5, 2007
7194822 Systems for drying moisture-containing work pieces and methods for drying same Mar. 27, 2007
6988325 Bidirectional forage bale dryer and method of operation Jan. 24, 2006
6944967 Air dryer system and method employing a jet engine Sep. 20, 2005
6591516 Hair dryer Jul. 15, 2003
6393719 Process and apparatus for removing water from fibrous web using oscillatory flow-reversing air or gas May. 28, 2002
6085437 Water-removing apparatus for papermaking process Jul. 11, 2000
6054686 Uniform air flow oven Apr. 25, 2000
6000145 Method and apparatus for continuous treatment of particulate material Dec. 14, 1999
5937539 Dual-purpose combuster for ordinary combustion and pulse combustion Aug. 17, 1999
5842289 Apparatus for drying and heating using a pulse combustor Dec. 1, 1998
5775003 Portable sensor for dry kiln sampling Jul. 7, 1998
5596817 Method and an apparatus for minimizing deposits in a drying chamber Jan. 28, 1997
5551165 Enhanced cleansing process for wafer handling implements Sep. 3, 1996
5526583 Portable dry kiln for drying or treating lumber Jun. 18, 1996
5522159 Drying shed Jun. 4, 1996
RE34784 Method and apparatus for the dry treatment of a fabric Nov. 15, 1994
5293700 System for drying green woods Mar. 15, 1994
5276980 Reversible conditioned air flow system Jan. 11, 1994
5274892 Process and apparatus for shrinking textile fabrics Jan. 4, 1994
5269076 Balanced draft vent system for kiln Dec. 14, 1993
5226244 Circulating air dryer Jul. 13, 1993
5209821 Apparatus for removing volatiles from, or dehydrating, liquid products May. 11, 1993
5197201 Process for drying timber Mar. 30, 1993
5195251 Drying kiln Mar. 23, 1993
5136793 Heat recovery system for a pulse combustion drying apparatus Aug. 11, 1992
5123177 Wood curing kiln Jun. 23, 1992
5107607 Kiln for drying lumber Apr. 28, 1992
4974341 Apparatus for dry treatment of a fabric Dec. 4, 1990
4955146 Lumber drying kiln Sep. 11, 1990
4941820 Pulse combustion energy system Jul. 17, 1990
4922624 Method and apparatus for drying lumber May. 8, 1990
4918837 Device for generating a continuous stream of dried gases Apr. 24, 1990
4916832 Device for reversing an air flow in a drying chamber Apr. 17, 1990
4892083 Baking oven Jan. 9, 1990
4866858 Process for fluidizing Sep. 19, 1989
4862599 Process and apparatus for drying wood Sep. 5, 1989
4817300 Apparatus for uniformly subjecting a flow-traversable heatable material to a fluid flow Apr. 4, 1989
4801361 Method and apparatus for molding expandable polystyrene foam articles Jan. 31, 1989
4779604 Baking oven Oct. 25, 1988
4726125 Tumble dryers Feb. 23, 1988
4697358 Pulse combustion apparatus Oct. 6, 1987
4679333 Apparatus for the dry treatment of a fabric Jul. 14, 1987
4677717 Device for continuous and tension-free treatment of textile fabric sheets Jul. 7, 1987
4671056 Pulse-sonic jet nozzle Jun. 9, 1987
4662083 Ventilating system for dryers May. 5, 1987

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