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Class Information
Number: 210/340
Name: Liquid purification or separation > Plural distinct separators > Filters > Parallel filters with flow controller
Description: Apparatus having means for interrupting flow to at least one filter unit while another remains in service, said filters being in parallel.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615158 |
Method and device for the removal of partially protein bound substances |
Nov. 10, 2009 |
| RE40721 |
Duplex strainer |
Jun. 9, 2009 |
| 7481919 |
Multiple filter controller |
Jan. 27, 2009 |
| 7429324 |
Device for in-line preparation of liquid for an extracorporeal blood treatment apparatus |
Sep. 30, 2008 |
| 7381335 |
Method and arrangement for continuous filtering of particles out of a liquid |
Jun. 3, 2008 |
| 7361281 |
High efficiency ion exchange system and method for removing chromium from water |
Apr. 22, 2008 |
| 7354510 |
Extracting apparatus |
Apr. 8, 2008 |
| 7309430 |
Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods |
Dec. 18, 2007 |
| 7223298 |
Filter assembly for pipelines |
May. 29, 2007 |
| 7059480 |
Continuous blood filtration apparatus |
Jun. 13, 2006 |
| 6998046 |
Filter system and methods of operating the same |
Feb. 14, 2006 |
| 6908545 |
Hydraulic filter assembly with priority valve |
Jun. 21, 2005 |
| 6773588 |
Purified water supply system |
Aug. 10, 2004 |
| 6660160 |
Apparatus for separation of solids from a liquid |
Dec. 9, 2003 |
| 6652760 |
Internal filter for fischer-tropsch catalyst/wax separation |
Nov. 25, 2003 |
| 6645380 |
Membrane separation apparatus |
Nov. 11, 2003 |
| 6607660 |
Liquid filtration device with backwashing feature |
Aug. 19, 2003 |
| 6607661 |
Filtering apparatus |
Aug. 19, 2003 |
| 6605210 |
Hydraulic fluid filter device |
Aug. 12, 2003 |
| 6599421 |
Reversing valve for a filter arrangement with at least two filter chambers |
Jul. 29, 2003 |
| 6592641 |
Integral porous filter/fail-safe/regenerator/gas separation membrane module |
Jul. 15, 2003 |
| 6558554 |
Method for switching filters on-line without bubbles and with zero liquid waste |
May. 6, 2003 |
| 6485634 |
Filtration system for industrial coolants |
Nov. 26, 2002 |
| 6474289 |
Automatic switching duplex filterhead and diesel fuel conditioning system |
Nov. 5, 2002 |
| 6432301 |
Device for obtaining a desalinated solution |
Aug. 13, 2002 |
| 6368513 |
Filtering assembly and method including removal of impurities from a backwash fluid |
Apr. 9, 2002 |
| 6355170 |
Dual manifold filtering system |
Mar. 12, 2002 |
| 6342158 |
Filter elements |
Jan. 29, 2002 |
| 6334950 |
Automated oil filter replacement assembly |
Jan. 1, 2002 |
| 6267894 |
Method for efficient filtration of chemical baths |
Jul. 31, 2001 |
| 6251275 |
Membrane filtration module and membrane filtration system |
Jun. 26, 2001 |
| 6248246 |
Continuous-action filtering method and apparatus |
Jun. 19, 2001 |
| 6244929 |
Chemical-mechanical-polishing system with continuous filtration |
Jun. 12, 2001 |
| 6230551 |
Evaluation of particulate contaminants |
May. 15, 2001 |
| 6221266 |
Variable capacity continuous extended area filter |
Apr. 24, 2001 |
| 6210576 |
System for cross-flow membrane filtration |
Apr. 3, 2001 |
| 6197192 |
Filter array with connector for successive backwash |
Mar. 6, 2001 |
| 6197195 |
Fluid handling apparatus and flow control assembly therefor |
Mar. 6, 2001 |
| 6196267 |
Cock-type melt flow control valve |
Mar. 6, 2001 |
| 6165048 |
Chemical-mechanical-polishing system with continuous filtration |
Dec. 26, 2000 |
| RE36913 |
Swimming pool vacuum system |
Oct. 17, 2000 |
| 6120682 |
Portable pump-type reverse osmosis apparatus |
Sep. 19, 2000 |
| 6117338 |
Continuous polymer melt filtration |
Sep. 12, 2000 |
| 6117320 |
Parallel filters for plastic melts |
Sep. 12, 2000 |
| 6106709 |
Filtering device for aquariums |
Aug. 22, 2000 |
| 6042721 |
Effluent treatment apparatus |
Mar. 28, 2000 |
| 6033566 |
Continuous flow filter system |
Mar. 7, 2000 |
| 6017459 |
Apparatus and method for the monitoring of membrane deposition |
Jan. 25, 2000 |
| 6007723 |
Apparatus for processing fluid and method for producing separated fluid |
Dec. 28, 1999 |
| 5981614 |
Hydrophobic-oleophobic fluoropolymer compositions |
Nov. 9, 1999 |
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