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Class Information
Number: 210/273
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > With rehabilitation means > Surface traversing type > Moving fluid distributor
Description: Apparatus which is provided with moving means for introducing a fluid to the bed.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7481930 |
Filter having a filter layer that forms a protective barrier to prevent clogging of a gravel-less underdrain and method of making the same |
Jan. 27, 2009 |
| 7235140 |
Method for cleaning tissue processing molds |
Jun. 26, 2007 |
| 6998046 |
Filter system and methods of operating the same |
Feb. 14, 2006 |
| 6942795 |
Modular filter system and method of repairing and/or replacing components thereof |
Sep. 13, 2005 |
| 6923911 |
Method of filtering air through an air passageway |
Aug. 2, 2005 |
| 6423224 |
Filter cartridge assembly for water treatment device |
Jul. 23, 2002 |
| 6280619 |
Inline filter having swivel fitting |
Aug. 28, 2001 |
| 5891335 |
Filtration system with traveling plenum |
Apr. 6, 1999 |
| 5759395 |
Column arrangement |
Jun. 2, 1998 |
| 5554281 |
Traveling bridge filter system and associated underdrain |
Sep. 10, 1996 |
| 5552045 |
Sliding shoe unit for automatic backwash filters |
Sep. 3, 1996 |
| 5401405 |
Combined air/water backwash in a travelling bridge filter |
Mar. 28, 1995 |
| 4988439 |
Two stage traveling bridge filter |
Jan. 29, 1991 |
| 4908136 |
Method and apparatus for forming and ion-exchanging a filter cake |
Mar. 13, 1990 |
| 4859330 |
Traveling bridge filter with air scour |
Aug. 22, 1989 |
| 4855113 |
Apparatus for removing sulfur from organic polysulfides |
Aug. 8, 1989 |
| 4655908 |
Device for cleaning liquids in sand filters |
Apr. 7, 1987 |
| 4600510 |
Liquid treatment apparatus |
Jul. 15, 1986 |
| 4152265 |
Filter apparatus |
May. 1, 1979 |
| 4119273 |
System for pollution suppression |
Oct. 10, 1978 |
| 3984326 |
Gravity filtering equipment |
Oct. 5, 1976 |
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