US Patent No: 6,413,289

Number of patents in Portfolio can not be more than 2000

Reverse flow air filter arrangement

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A reverse flow air filter arrangement is provided. The arrangement includes a filter element having first and second end caps, the second end cap having a central drainage aperture. A funnel shape on an interior surface of second end cap is used to direct moisture flow to the drainage aperture. The arrangement includes a housing in which the filter element is positioned, operatively, during use. Certain features in the housing facilitate moisture withdrawal from the filter element while also inhibiting interference with sealing between the a filter element and the housing.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DONALDSON COMPANY, INC.MINNEAPOLIS, MN600

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bartels, Dolan Cresco, IA 12 462
Crenshaw, Bruce Indianapolis, IN 17 462
Engel, Donald Francis Prior Lake, MN 12 540
Hacker, John Bloomington, MN 15 443
Harold, Don late of Prior Lake, MN 5 184

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
4,764,191 Air filter 46 1987
 
Filterwerk Mann & Hummel GmbH (2)
4,632,682 Cartridge-type oil separator air filter 63 1986
5,167,683 Intake air filter for the internal combustion engine of a motor vehicle 87 1991
 
RADIOMED CORP. (2)
8,320,995 Fiducial marker with rings 7 2007
8,320,995 Fiducial marker with rings 7 2007
 
WIX FILTRATION CORP. (2)
5,415,677 Air filters including filters configured for both radial and axial sealing 112 1993
5,487,767 Radially sealed air filters 128 1995
 
GENERAL MOTORS CORPORATION (1)
4,735,640 Air cleaner liquid drain and filter assembly 17 1987
 
Donaldson Company, Inc. (10)
4,720,292 Cylindrical air filter with lightweight housing and radially directed seal 191 1986
5,238,474 Filtration arrangement 137 1992
5,547,480 Cylindrical air filter with radially directed seal 195 1994
5,613,992 Reverse flow air filter arrangement and method 155 1994
5,690,712 Reverse flow air filter arrangement and method 66 1996
5,938,804 Reverse flow air filter arrangement and method 58 1997
5,897,676 Reverse flow air filter arrangement and method 156 1998
6,004,366 Reverse flow air filter arrangement and method 44 1998
* 6,258,145 Reverse flow air filter arrangement 33 1999
* 6,322,602 Reverse flow air filter arrangement 62 2001
 
Baldwin Filters, Inc. (1)
5,484,466 Air filter element with radial seal sealing gasket 169 1994
 
VILTER MANUFACTURING CORPORATION (1)
4,516,994 Apparatus for separating liquid droplets from gas 59 1984
 
PALL CORPORATION (2)
5,006,235 Barrier flange filter assembly including cover 23 1986
5,779,903 Filter assemblies and end caps for filter assemblies 54 1996
 
MAEDA LIMITED (1)
4,848,989 In-line filter assembly for compressed air 38 1987
 
ALLIED-SIGNAL, INCORPORATED (1)
4,759,783 Sealing arrangement for inlet air filter 74 1987
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
9,346,001 Air filter cartridges, components thereof; and, air cleaner assemblies 0 2012
 
KOHLER CO. (8)
8,052,780 Air cleaner assembly 9 2006
* 2007/0079,794 Air cleaner assembly 9 2006
D632770 Cyclonic air cleaner housing 6 2008
8,808,432 Cyclonic air cleaner 0 2009
8,585,805 Cyclonic air cleaner 0 2009
8,419,834 Air cleaner assembly 4 2010
8,801,819 Air cleaner assembly 1 2013
9,206,721 Cyclonic air cleaner 0 2013
 
ALTAIR NANOMATERIALS, INC. (1)
* 2006/0078,727 Method for producing mixed metal oxides and metal oxide compounds 1 2005
 
Donaldson Company, Inc. (34)
7,455,707 Reverse flow air filter arrangement and method 4 2003
* 2004/0148,913 [REVERSE FLOW AIR FILTER ARRANGEMENT AND METHOD] 3 2003
* 2004/0006,955 Reverse flow air filter arrangement and method 5 2003
7,070,642 Air cleaner; replaceable filter cartridges; and, methods 51 2003
* 2004/0134,171 Air cleaner; replaceable filter cartridges; and, methods 26 2003
8,216,335 Air cleaner; replaceable filter cartridges; and methods 14 2005
7,537,631 Filter cartridges; air cleaners; and methods 41 2005
7,524,349 Air cleaner; air filter cartridge and method of manufacturing 42 2006
* 2006/0254,229 Air cleaner; air filter cartridge and method of manufacturing 8 2006
7,662,203 Air cleaner; replaceable filter cartridges; and, methods 42 2006
* 2006/0225,389 Air cleaner; replaceable filter cartridges; and, methods 8 2006
* 2008/0066,435 Air cleaner assembly; components; and, methods 20 2007
8,273,143 Air cleaner, replaceable filter cartridges, and methods 7 2007
8,414,675 Air cleaner; air filter cartridge and method of manufacturing 15 2008
* 2010/0146,920 AIR CLEANER; AIR FILTER CARTRIDGE AND METHOD OF MANUFACTURING 35 2008
8,292,984 Air cleaner arrangments with end support for cartridge; components; and, methods 17 2008
8,066,791 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 19 2008
8,038,756 Air cleaner arrangements; components; and, methods 16 2008
* 2009/0100,813 Air cleaner arrangements; components; and, methods 21 2008
7,981,186 Air cleaner; air filter cartridge and method of manufacturing 19 2009
* 2009/0249,756 Air cleaner; air filter cartridge and method of manufacturing 12 2009
* 8,361,181 Air cleaner assemblies; filter cartridges therefor; features; and, methods 3 2009
* 2010/0037,570 Air cleaner assemblies; filter cartridges therefor; features; and, methods 8 2009
7,988,757 Air cleaner; replaceable filter cartridges; and, methods 19 2010
8,545,588 Air cleaner arrangements; components; and, methods 5 2011
8,480,778 Air cleaner arrangements; components; and, methods 9 2011
8,394,166 Air cleaner; replaceable filter cartridges; and, methods 17 2012
8,784,523 Air cleaner replaceable filter cartridges; and, methods 1 2012
8,814,973 Air cleaner arrangements with end support for cartridge; components; and, methods 3 2012
8,702,831 Air cleaner; replaceable filter cartridges; and, methods 2 2013
8,852,309 Air cleaner; replaceable filter cartridges; and, methods 3 2013
9,238,189 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 0 2013
9,221,004 Air cleaner arrangements; components; and, methods 0 2013
9,039,802 Air cleaner; replaceable filter cartridges; and, methods 1 2014
 
Baldwin Filters, Inc. (4)
7,815,705 Air filter with composite end cap 12 2005
7,628,837 Air filter with composite end cap 5 2005
* 2007/0084,170 Air filter with composite foam urethane and rigid urethane end cap 2 2005
8,016,922 Air filter with composite end cap 9 2010
 
Donaldson Company, Pnc. (1)
8,460,425 Air cleaner; replaceable filter cartridges; and, methods 7 2011
* Cited By Examiner