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Class Information
Number: 210/269
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > With rehabilitation means
Description: Apparatus in which means is provided for restoring the separating medium to the condition it was in before separation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7608183 |
Control valve assembly |
Oct. 27, 2009 |
| 7563362 |
Auto-regenerable hot and cold water softener |
Jul. 21, 2009 |
| 7374676 |
High rate filtration system |
May. 20, 2008 |
| 7361281 |
High efficiency ion exchange system and method for removing chromium from water |
Apr. 22, 2008 |
| 7332080 |
Apparatus for salt free water softening |
Feb. 19, 2008 |
| 7329338 |
Conductivity sensor for an ion exchange water softener |
Feb. 12, 2008 |
| 7300569 |
Water treatment system |
Nov. 27, 2007 |
| 7285220 |
Water softener |
Oct. 23, 2007 |
| 7276160 |
Method and apparatus for metal removal by ion exchange |
Oct. 2, 2007 |
| 7273555 |
Process for continuous ion exchange |
Sep. 25, 2007 |
| 7267767 |
Filtration apparatus |
Sep. 11, 2007 |
| 7252761 |
Filtration installation for filtering the water of a water pool |
Aug. 7, 2007 |
| 7144510 |
Method and apparatus for treatment of a fluid stream |
Dec. 5, 2006 |
| 7108784 |
Apparatus for removal and destruction of ammonia from an aqueous medium |
Sep. 19, 2006 |
| 7090771 |
Filtration system underdrain |
Aug. 15, 2006 |
| 7045057 |
Preparation of homogeneously loaded ion exchangers |
May. 16, 2006 |
| 6984327 |
System and method for separating heavy isotopes of hydrogen oxide from water |
Jan. 10, 2006 |
| 6966987 |
Tangentially fed media filter method and apparatus |
Nov. 22, 2005 |
| 6966980 |
SSF/x slow sand filter |
Nov. 22, 2005 |
| 6953525 |
Potable water treatment plant and method of maintaining same |
Oct. 11, 2005 |
| 6936176 |
Transportable water treatment system |
Aug. 30, 2005 |
| 6926835 |
Water softening device |
Aug. 9, 2005 |
| 6838069 |
Apparatus and method for ammonia removal from waste streams |
Jan. 4, 2005 |
| 6797158 |
Method and apparatus for acoustically driven media filtration |
Sep. 28, 2004 |
| 6793819 |
Airtight waste solution sampling apparatus |
Sep. 21, 2004 |
| 6783684 |
Water softening apparatus and associated method for sensing depletion of salt in a brine tank |
Aug. 31, 2004 |
| 6780312 |
Filtration apparatus |
Aug. 24, 2004 |
| 6773589 |
Method and apparatus for removing particulate contaminants from commercial laundry waste water |
Aug. 10, 2004 |
| 6749744 |
Device for regenerating an ion exchange cartridge |
Jun. 15, 2004 |
| 6716344 |
Liquid-solids circulating fluidized bed |
Apr. 6, 2004 |
| 6607668 |
Water purifier |
Aug. 19, 2003 |
| 6605216 |
Deep media filter |
Aug. 12, 2003 |
| 6596159 |
Automatic regeneration valve for water softener |
Jul. 22, 2003 |
| 6579445 |
System for the production of laboratory grade ultrapure water |
Jun. 17, 2003 |
| 6531063 |
Zeolite bed leach septic system and method for wastewater treatment |
Mar. 11, 2003 |
| 6517708 |
Apparatus for separating oxides of heavy isotopes of hydrogen from water |
Feb. 11, 2003 |
| 6451173 |
Separator system |
Sep. 17, 2002 |
| 6447678 |
Regeneration of water treatment media |
Sep. 10, 2002 |
| 6444127 |
Water conditioning unit control valve |
Sep. 3, 2002 |
| 6423224 |
Filter cartridge assembly for water treatment device |
Jul. 23, 2002 |
| 6419823 |
Apparatus and method for sanitizing and cleaning a filter system |
Jul. 16, 2002 |
| 6413423 |
Liquid treatment apparatus with backwash flow control valve |
Jul. 2, 2002 |
| 6402944 |
Water softener control valve with removable seal stack |
Jun. 11, 2002 |
| 6372127 |
Simulated moving bed separation system |
Apr. 16, 2002 |
| 6361701 |
Method and device for continuous filtration of liquids |
Mar. 26, 2002 |
| 6296761 |
Water treatment process |
Oct. 2, 2001 |
| 6287461 |
Tandem system for adsorptive separation |
Sep. 11, 2001 |
| 6251294 |
Ultrasonic filter regenerating apparatus and method |
Jun. 26, 2001 |
| 6248382 |
Process for reducing the patulin concentration in fruit juices |
Jun. 19, 2001 |
| 6231763 |
Regeneration of water treatment media |
May. 15, 2001 |
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