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Class Information
Number: 55/510
Name: Gas separation > With means securing or retaining separating media > Unit or cohesive sheet-like media in flow line or frame > Annular unit held between dished or plate-like end members for top and bottom support
Description: Apparatus in which a filter unit of annular form, e.g., a hollow cylinder or doughnut, is held between a pair of substantially solid members applied axially (i.e., across the open ends) of the unit whereby gas flow is through the filter and through an opening in at least one of said members.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604128 |
Filter apparatus |
Oct. 20, 2009 |
| 7604677 |
Structure of air cleaner box |
Oct. 20, 2009 |
| 7588615 |
Filter element with drainage tube |
Sep. 15, 2009 |
| 7582130 |
Coalescing filter assembly |
Sep. 1, 2009 |
| 7582146 |
Uniform aerosol deposit sampling device |
Sep. 1, 2009 |
| 7572309 |
Filter for venting enclosures, for example containing electrical equipment, such as vehicle lighting units, and exposed to moisture or atmospheric agents |
Aug. 11, 2009 |
| 7572310 |
Filter system; element configuration; and methods |
Aug. 11, 2009 |
| 7552506 |
Filter assembly for vacuum cleaner |
Jun. 30, 2009 |
| 7497887 |
Device for separating impurities from the lubricating oil of an internal combustion engine |
Mar. 3, 2009 |
| 7481862 |
Filter assembly using adhesive center tube |
Jan. 27, 2009 |
| 7473288 |
Particulate matter reducing apparatus |
Jan. 6, 2009 |
| 7452395 |
Air filter for a scoop |
Nov. 18, 2008 |
| 7404839 |
Filter assembly and adaptor |
Jul. 29, 2008 |
| 7377954 |
Performance air filtration cartridge |
May. 27, 2008 |
| 7371268 |
Filter with thermal vent |
May. 13, 2008 |
| 7357823 |
Disposable filter within a removable chamber |
Apr. 15, 2008 |
| 7354469 |
Vacuum conveyor device with a multi-stage filter system |
Apr. 8, 2008 |
| 7351270 |
Air cleaner arrangements; serviceable filter elements; and, methods |
Apr. 1, 2008 |
| 7329293 |
Disposable filtration system for bagless vacuum cleaners |
Feb. 12, 2008 |
| 7323029 |
Air cleaner arrangements; serviceable filter elements; and, methods |
Jan. 29, 2008 |
| 7320721 |
Chemical filter and fan filter unit having the same |
Jan. 22, 2008 |
| 7311747 |
Filter assembly with pleated media V-packs, and methods |
Dec. 25, 2007 |
| 7303604 |
Filter arrangement; sealing system; and methods |
Dec. 4, 2007 |
| 7303605 |
Snap together filter |
Dec. 4, 2007 |
| 7294162 |
Exhaust filter |
Nov. 13, 2007 |
| 7291198 |
Filter system; element configuration; and methods |
Nov. 6, 2007 |
| 7267703 |
Electrically regeneratable filter element |
Sep. 11, 2007 |
| 7267706 |
Air filter |
Sep. 11, 2007 |
| 7264656 |
Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter |
Sep. 4, 2007 |
| 7261756 |
Safety filter element |
Aug. 28, 2007 |
| 7217307 |
Dust collector with an invertible wind exhausting case |
May. 15, 2007 |
| 7217361 |
Filter with support columns |
May. 15, 2007 |
| 7182804 |
Aerosol separator; and method |
Feb. 27, 2007 |
| 7169200 |
Particulate trap |
Jan. 30, 2007 |
| 7135051 |
Dirt cup filter with pre-filtration cap |
Nov. 14, 2006 |
| 7115156 |
Air filter system |
Oct. 3, 2006 |
| 7097683 |
Filter element with a drainage tube |
Aug. 29, 2006 |
| 7083661 |
Air filter element and method of producing the same |
Aug. 1, 2006 |
| 7056364 |
Securing seat for holding filtering cylinder of a dust collector |
Jun. 6, 2006 |
| 7048773 |
Universal vacuum filter cartridge |
May. 23, 2006 |
| 7044992 |
Particle filter for exhaust gases of internal combustion engine engines |
May. 16, 2006 |
| 7041158 |
Pre-molded air filter end cap and method of manufacturing an air filter |
May. 9, 2006 |
| 7008472 |
Spin-on filtering oil removal cartridge |
Mar. 7, 2006 |
| 7001440 |
Fluid filter assembly with a fin array |
Feb. 21, 2006 |
| 7001449 |
Diesel exhaust filter system with electrical regeneration |
Feb. 21, 2006 |
| 6997974 |
High strength and ultra-efficient oil coalescer |
Feb. 14, 2006 |
| 6994741 |
Protective filter cover |
Feb. 7, 2006 |
| 6994742 |
Filtration arrangement utilizing pleated construction and method |
Feb. 7, 2006 |
| 6991672 |
Filter element comprising pleated metal fiber fleece |
Jan. 31, 2006 |
| 6991673 |
Filter element |
Jan. 31, 2006 |
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