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Class Information
Number: 210/354
Name: Liquid purification or separation > Filter > Medium, cleaner or agitator moved by fluid
Description: Apparatus in which either the filter medium, residue remover or agitator is moved by the fluid being treated.










Sub-classes under this class:

Class Number Class Name Patents
210/355 Cleaner 62
210/356 Medium flexed 104


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8177073 Water processor May. 15, 2012
7987769 Water dispenser and filter cartridge for use therein Aug. 2, 2011
7913855 Self-cleaning filter for agricultural irrigation water Mar. 29, 2011
7886752 Filter Feb. 15, 2011
7820040 Water pollution trap and methods of use thereof Oct. 26, 2010
7820039 Apparatus for the continuous filtering of impurities from a flowable compound Oct. 26, 2010
7763172 Filtering device Jul. 27, 2010
7662278 Self-cleaning filter assembly Feb. 16, 2010
7581649 Reverse flow spin-cleaning liquid filters Sep. 1, 2009
7566399 Water purifier Jul. 28, 2009
7501058 Self-clearing strainer for fluid intake Mar. 10, 2009
7371322 Filtration system and dynamic fluid separation method May. 13, 2008
7001506 Self-cleaning circulatin system and method Feb. 21, 2006
7000781 Filtering device Feb. 21, 2006
6540914 Cleanable filter with spinning screen Apr. 1, 2003
6419826 Self-cleaning filter Jul. 16, 2002
6398037 Reverse flow spin-cleaning liquid filters Jun. 4, 2002
6398038 Filtration system utilizing a vortex mechanical power filter Jun. 4, 2002
6287464 Oil filter assembly Sep. 11, 2001
6221255 Ultrasound-assisted filtration system Apr. 24, 2001
6217756 Drain grate responsive to high flow rates of water Apr. 17, 2001
6143187 Fluidized bed filter for an aquarium Nov. 7, 2000
6059970 Membrane separation device May. 9, 2000
6033558 Self-gush-cleaning filter device Mar. 7, 2000
5984108 Fluid filtering system with variable filter layer Nov. 16, 1999
5919376 Filtration apparatus and method Jul. 6, 1999
5858217 Multiple tube filter with spraying device Jan. 12, 1999
5707519 Centrifugal oil filter with particle retention Jan. 13, 1998
5626744 Pressure sensitive extended life filter May. 6, 1997
5516426 Self-cleaning filter system May. 14, 1996
5425876 Gravity screen filter with dynamic backwash Jun. 20, 1995
5384045 Filter cleaner Jan. 24, 1995
5376268 Rotary filtering apparatus Dec. 27, 1994
5304312 Filter assembly includng filter unit having deformable sealing end caps Apr. 19, 1994
5207930 Filtration system with helical filter cartridge May. 4, 1993
5152895 Method for cleaning filter elements and filter for implementing it Oct. 6, 1992
5149428 Water filter with extended operational period Sep. 22, 1992
5145580 Apparatus comprising a tube bundle mounted in a shell and undergoing differential thermal expansion therewith Sep. 8, 1992
5060483 Twin rinse columns for freeze concentration of rinsable concentrates Oct. 29, 1991
4941971 Apparatus for mounting in an aqueous system, a cartridge filter for filtering the system and in place cleaning the filter Jul. 17, 1990
4936989 Filter with dual fluid pressure actuated valves on common stem Jun. 26, 1990
4929350 Rotary screw fish collector May. 29, 1990
4925550 Batch-action apparatus for filtering fluid medium May. 15, 1990
4904397 Device for the mechanical cleansing of fluids Feb. 27, 1990
4888110 Filtering device for thermoplastic material Dec. 19, 1989
4839047 Intermittent-action apparatus for filtering liquid Jun. 13, 1989
4834873 Combined reverse osmosis unit and water inflow control valve for a water purification system May. 30, 1989
4808234 Cleaner assembly for air filters Feb. 28, 1989
4790934 Apparatus for filtering fluid medium Dec. 13, 1988
4781823 Pre-filtering apparatus for use in continuous press Nov. 1, 1988

1 2










 
 
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