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Class Information
Number: 210/331
Name: Liquid purification or separation > Plural distinct separators > Filters > Movable separating elements > Connected for group operation > Spaced filter wall type, e.g., multiple hollow leaves
Description: Apparatus comprising spaced wall type filter elements, e.g., multiple hollow circular leaves.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8651283 Mesh screen assembly with reduced pull-out Feb. 18, 2014
8628661 Disc filtration device Jan. 14, 2014
8628665 Water treatment apparatus Jan. 14, 2014
8623212 Water treatment and revitalization system and method Jan. 7, 2014
8585898 Scrapping device for a pressurised filtration plant Nov. 19, 2013
8518273 Method and device for cleaning of filter Aug. 27, 2013
8480893 Gravity-flow water purifier Jul. 9, 2013
8444862 Device and method for cleaning a filter cloth May. 21, 2013
8425774 Leaf filter system and replaceable filter leaf apparatus Apr. 23, 2013
8414769 Disc filter sector and disc filter Apr. 9, 2013
8409436 Rotary disc filter and module for constructing same Apr. 2, 2013
8366931 Filtering unit Feb. 5, 2013
8252181 Horizontal ore filter with replaceable filter elements Aug. 28, 2012
8206587 Filtration cell and filtration device using such a cell Jun. 26, 2012
8187457 Test paper and porous membrane May. 29, 2012
8118175 Venting device for a disc filter Feb. 21, 2012
8114290 Filter device Feb. 14, 2012
8101090 Device and method for cleaning a filter cloth Jan. 24, 2012
8075775 Leaf filter system and replaceable filter leaf apparatus Dec. 13, 2011
8048296 Filtering device for liquid filtration Nov. 1, 2011
8034301 Test paper and porous membrane Oct. 11, 2011
8022109 Product filtration system for slurry reactors Sep. 20, 2011
8002994 Method and apparatus for thickening lime mud in a disc filter Aug. 23, 2011
7971728 Bone fragment collector Jul. 5, 2011
7972508 Rotary disc filter and module for constructing same Jul. 5, 2011
7964094 Filtration and recovery system Jun. 21, 2011
7926666 Rotary filtration system Apr. 19, 2011
7922905 Leaf filter system and replaceable filter leaf apparatus Apr. 12, 2011
7886850 Drilling fluid screening systems Feb. 15, 2011
7828973 Plastic encapsulated tangential flow filter device and methods for making same Nov. 9, 2010
7763172 Filtering device Jul. 27, 2010
7704382 Gravity type fiber filter Apr. 27, 2010
7686964 Method and device for washing of lime mud Mar. 30, 2010
7638051 Filter apparatus Dec. 29, 2009
7597805 Rotary disc filter and module for constructing same Oct. 6, 2009
7396464 Filter comprising rotatable, disk-shaped filter elements Jul. 8, 2008
7381335 Method and arrangement for continuous filtering of particles out of a liquid Jun. 3, 2008
7332081 Filter device for the clarification of contaminated liquids Feb. 19, 2008
7314556 Filter disc with panel sectors Jan. 1, 2008
7297269 Cross-flow filtration cassettes and methods for fabrication of same Nov. 20, 2007
7288186 Filtrate immersed activation assembly for disk filters Oct. 30, 2007
7241383 Fluid treating method and apparatus Jul. 10, 2007
7163622 Filter Jan. 16, 2007
7101418 Method and device for degassing a suspension, specifically a fiber stock suspension Sep. 5, 2006
7094346 Cross-flow filtration cassettes and methods for fabrication of same Aug. 22, 2006
7037427 Filter device for clarifying contaminated liquids May. 2, 2006
7029584 Rotating filter Apr. 18, 2006
7005067 Disc-type filtration apparatus including discharge collector internal to pressure vessel and method filtration Feb. 28, 2006
6872301 High shear rotating disc filter Mar. 29, 2005
6833077 Sequential swinging precoat removal and renewal system, filter so equipped and method Dec. 21, 2004

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