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Class Information
Number: 210/276
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > With rehabilitation means > Backwash or blowback means > With mechanical agitator or residue remover
Description: Apparatus in which mechanical means is provided for agitating the bed or removing residue therefrom.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7520986 |
Filtration device |
Apr. 21, 2009 |
| 7267767 |
Filtration apparatus |
Sep. 11, 2007 |
| 7169303 |
Sorbent reactor for extracorporeal blood treatment systems, peritoneal dialysis systems, and other body fluid treatment systems |
Jan. 30, 2007 |
| 6942795 |
Modular filter system and method of repairing and/or replacing components thereof |
Sep. 13, 2005 |
| 6780312 |
Filtration apparatus |
Aug. 24, 2004 |
| 6287474 |
Liquid treatment media regeneration apparatus and process |
Sep. 11, 2001 |
| 5948252 |
Filtering device |
Sep. 7, 1999 |
| 5695989 |
Apparatus and method for separating particles using a pliable vessel |
Dec. 9, 1997 |
| 5445740 |
Floating media biofilter |
Aug. 29, 1995 |
| 5106500 |
Portable water purification system including a filter cleaning mechanism |
Apr. 21, 1992 |
| 4957631 |
Traveling bridge filter with surface wash |
Sep. 18, 1990 |
| 4765889 |
Moving bridge filter - telescoping floating pot skimmer |
Aug. 23, 1988 |
| 4764288 |
Method and system for cleansing a filter bed |
Aug. 16, 1988 |
| 4702751 |
Granular filter and method of operating same |
Oct. 27, 1987 |
| 4556487 |
Water filtering device |
Dec. 3, 1985 |
| 4547286 |
Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media |
Oct. 15, 1985 |
| 4540487 |
Filter apparatus |
Sep. 10, 1985 |
| 4460467 |
Water purification device |
Jul. 17, 1984 |
| 4308141 |
Modular filter system |
Dec. 29, 1981 |
| 4152265 |
Filter apparatus |
May. 1, 1979 |
| 4118320 |
Method and apparatus for agitating and scrubbing filter bed |
Oct. 3, 1978 |
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