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Class Information
Number: 210/268
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > Gravity flow of particles type
Description: Apparatus in which means is provided for removing particles from the bottom of the bed so that the bed of separating material as a whole moves downwardly by gravity.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7381336 |
Automated water treatment system and method of use |
Jun. 3, 2008 |
| 7132088 |
Granular moving-bed apparatus |
Nov. 7, 2006 |
| 7045057 |
Preparation of homogeneously loaded ion exchangers |
May. 16, 2006 |
| 6790351 |
Vertical filter |
Sep. 14, 2004 |
| 6780312 |
Filtration apparatus |
Aug. 24, 2004 |
| 6716344 |
Liquid-solids circulating fluidized bed |
Apr. 6, 2004 |
| 6641737 |
Vertical filter |
Nov. 4, 2003 |
| 6550264 |
Air conditioner discharge water saver system |
Apr. 22, 2003 |
| 6517708 |
Apparatus for separating oxides of heavy isotopes of hydrogen from water |
Feb. 11, 2003 |
| 6517712 |
Descending bed filter |
Feb. 11, 2003 |
| 6471857 |
Filter apparatus with sand filter bed |
Oct. 29, 2002 |
| 6426005 |
Sequential descending bed filters with reject/washwater containing impurities being fed to a separate unit for elimination of impurities |
Jul. 30, 2002 |
| 6403384 |
Device and method for analyzing a biologic sample |
Jun. 11, 2002 |
| 6387283 |
Descending bed, continuously regenerating type filter with an adjustable length wash chamber |
May. 14, 2002 |
| 6383376 |
Method and apparatus for filtering a liquid |
May. 7, 2002 |
| 6361701 |
Method and device for continuous filtration of liquids |
Mar. 26, 2002 |
| 6334956 |
Adsorption or desorption of dissolved constituents in liquids and apparatus therefor |
Jan. 1, 2002 |
| 6319413 |
Method of filtering liquid using a vertical filter |
Nov. 20, 2001 |
| 6143186 |
Device for continuous filtration of liquids |
Nov. 7, 2000 |
| 6077426 |
Filter filled with loose bulk material |
Jun. 20, 2000 |
| RE36660 |
Fluidized bed reactor and distribution system |
Apr. 18, 2000 |
| 5976365 |
Biomass growth control apparatus for fluid bed biological reactor |
Nov. 2, 1999 |
| 5895567 |
Biological waste fluid cleaner |
Apr. 20, 1999 |
| 5885462 |
Process for reducing the concentration of multivalent cations in aqueous solutions |
Mar. 23, 1999 |
| 5755959 |
Device for supplying a suspension to a filter at different levels within the filter and in proportions such that a uniformly distributed flow of suspension is achieved across the filter area |
May. 26, 1998 |
| 5746913 |
Continuous sand filter |
May. 5, 1998 |
| 5711874 |
Water treating apparatus |
Jan. 27, 1998 |
| 5707514 |
Water treating method and apparatus treating waste water by using ion exchange resin |
Jan. 13, 1998 |
| 5698106 |
Filtration process and apparatus |
Dec. 16, 1997 |
| 5681472 |
Method and apparatus for separating gaseous bubbles and sand from a liquid flow |
Oct. 28, 1997 |
| 5582722 |
Continuous self-cleaning filtration unit |
Dec. 10, 1996 |
| 5580445 |
Continuous ion exchange apparatus |
Dec. 3, 1996 |
| 5543037 |
Dynamic filtration filter apparatus with level control and deflector plate |
Aug. 6, 1996 |
| 5520804 |
Deep bed filtration system |
May. 28, 1996 |
| 5462654 |
Dynamic moving bed filter apparatus |
Oct. 31, 1995 |
| 5454959 |
Moving bed filters |
Oct. 3, 1995 |
| 5330652 |
Fluidized bed reactor and distribution system |
Jul. 19, 1994 |
| 5277829 |
Deep bed sand filter |
Jan. 11, 1994 |
| 5213683 |
Apparatus for charging and discharging of chromatography column bed |
May. 25, 1993 |
| 5173194 |
Filtration method and apparatus having a filtrate collection chamber within the filter bed |
Dec. 22, 1992 |
| 5145577 |
Pulsed column with basket lining |
Sep. 8, 1992 |
| 5126056 |
Continuous moving bed ion exchange system |
Jun. 30, 1992 |
| 5112504 |
System and method of decreasing waste fluid in continuous backwash filtration |
May. 12, 1992 |
| 5019278 |
Continuous washed sand filter and washer |
May. 28, 1991 |
| 4957627 |
Process for liquid-solid contact |
Sep. 18, 1990 |
| 4923615 |
Fluid/solid contacting columns |
May. 8, 1990 |
| 4900434 |
Apparatus for continuous filtration of fluids |
Feb. 13, 1990 |
| 4891142 |
Moving bed filtration apparatus and method |
Jan. 2, 1990 |
| 4861472 |
Apparatus for filtration of a suspension |
Aug. 29, 1989 |
| 4814147 |
Column for physical or chemical treatment in heterogeneous phase |
Mar. 21, 1989 |
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