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Class Information
Number: 210/193
Name: Liquid purification or separation > With precoat adding or applying means
Description: Apparatus with means to apply an additional solid material usually discrete particles, as a coating to a filtering medium, the additional material then acting as a primary filtering medium.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7410605 |
Solution film-forming method |
Aug. 12, 2008 |
| 7381323 |
Filtration apparatus |
Jun. 3, 2008 |
| 7147728 |
Magnesium alloy producing negative potential |
Dec. 12, 2006 |
| 7074338 |
Filtering method and filtering device |
Jul. 11, 2006 |
| 7029579 |
System for solid-liquid separation |
Apr. 18, 2006 |
| 7018547 |
Filtration covering apparatus |
Mar. 28, 2006 |
| 7001528 |
Use of aqueous binders in producing filter materials |
Feb. 21, 2006 |
| 6929754 |
Solid/liquid separation system for multiphase converters |
Aug. 16, 2005 |
| 6833077 |
Sequential swinging precoat removal and renewal system, filter so equipped and method |
Dec. 21, 2004 |
| 6830679 |
Filtration device |
Dec. 14, 2004 |
| 6800197 |
Continuously operable rotating drum pressure differential filter, method and systems |
Oct. 5, 2004 |
| 6733680 |
Use of particulate polymers as filter aids for aqueous liquids |
May. 11, 2004 |
| 6673447 |
Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist |
Jan. 6, 2004 |
| 6589430 |
Controlling the supply of bodyfeed to a filter |
Jul. 8, 2003 |
| 6585901 |
Method of draining water from low-consistency water-fiber suspensions |
Jul. 1, 2003 |
| 6562245 |
Crushed foam glass filter aid and method of use |
May. 13, 2003 |
| 6555014 |
Method for filtering a liquid by the addition of a filtering aid |
Apr. 29, 2003 |
| 6537449 |
Liquid filter using filtration aid |
Mar. 25, 2003 |
| 6511604 |
Method of treating a liquid material and treatment facilities |
Jan. 28, 2003 |
| 6406622 |
Apparatus for filtering a fluid |
Jun. 18, 2002 |
| 6383377 |
Filtering apparatus and open/close valve for the filtering apparatus |
May. 7, 2002 |
| 6332977 |
Apparatus for steam sterilizing and recycling leaf-filter aids |
Dec. 25, 2001 |
| 6270671 |
Method and apparatus for microfiltration |
Aug. 7, 2001 |
| 6254825 |
Antifoam compositions including lecithin and uses thereof |
Jul. 3, 2001 |
| 6244929 |
Chemical-mechanical-polishing system with continuous filtration |
Jun. 12, 2001 |
| 6238575 |
Antimicrobial treatment of enclosed systems having continuous or intermittent fluid flow |
May. 29, 2001 |
| 6165048 |
Chemical-mechanical-polishing system with continuous filtration |
Dec. 26, 2000 |
| 6149802 |
Solvent recovery apparatus and method |
Nov. 21, 2000 |
| 6117459 |
Filtration adjuvants, filtration supports, filtration process using them and process for regenerating said adjuvants |
Sep. 12, 2000 |
| 5908561 |
Purified natural glass product |
Jun. 1, 1999 |
| 5902482 |
Back-flushable filter cartridge and method of back-flushing same |
May. 11, 1999 |
| 5882528 |
Method for extending useful life of filter aid in a filter with hydraulically deformable system |
Mar. 16, 1999 |
| 5879560 |
Back-flushable filter cartridge and method of back-flushing same |
Mar. 9, 1999 |
| 5871641 |
Fluid filter with pleated septum |
Feb. 16, 1999 |
| 5772867 |
Fluid filtering machine with filtering membrane controlled by PLC |
Jun. 30, 1998 |
| 5653889 |
Process for filtering polyamide oligomers from aqueous streams containing the same |
Aug. 5, 1997 |
| 5632891 |
Self venting septums for use in a liquid filtration system |
May. 27, 1997 |
| 5591329 |
Fluid filter with pleated septum |
Jan. 7, 1997 |
| 5589076 |
Method and apparatus for optimizing operation of a filter system |
Dec. 31, 1996 |
| 5552056 |
Filter element having an ion exchange yarn winding layer |
Sep. 3, 1996 |
| 5534144 |
Tubular filter arrangement with liquid distributing casing |
Jul. 9, 1996 |
| 5498332 |
Precoating head |
Mar. 12, 1996 |
| 5453184 |
Filter carrier |
Sep. 26, 1995 |
| 5445745 |
Filtering method for filtering liquids |
Aug. 29, 1995 |
| 5441633 |
Liquid filter using filtration aid |
Aug. 15, 1995 |
| 5399260 |
Field portable water purification system |
Mar. 21, 1995 |
| 5397465 |
Diatomaceous swimming pool filter with regenerative plates |
Mar. 14, 1995 |
| 5389268 |
Filter aid including specific silica gel |
Feb. 14, 1995 |
| 5389243 |
Self-regenerating pressurized filtering system for liquids |
Feb. 14, 1995 |
| 5385678 |
Filter material |
Jan. 31, 1995 |
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