US Patent No: 6,413,289

Number of patents in Portfolio can not be more than 2000

Reverse flow air filter arrangement

ALSO PUBLISHED AS: 20020014058

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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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Family

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DONALDSON COMPANY, INC.MINNEAPOLIS, MN573

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bartels, Dolan Cresco, IA 12 400
Crenshaw, Bruce Indianapolis, IN 16 397
Engel, Donald Francis Prior Lake, MN 12 479
Hacker, John Bloomington, MN 14 389
Harold, Don late of Prior Lake, MN 5 147

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
4,764,191 Air filter 43 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 83 1991
 
RadioMed Corporation (2)
8,320,995 Fiducial marker with rings 6 2007
8,320,995 Fiducial marker with rings 6 2007
 
WIX FILTRATION CORP. (2)
5,415,677 Air filters including filters configured for both radial and axial sealing 106 1993
5,487,767 Radially sealed air filters 121 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 183 1986
5,238,474 Filtration arrangement 132 1992
5,547,480 Cylindrical air filter with radially directed seal 184 1994
5,613,992 Reverse flow air filter arrangement and method 143 1994
5,690,712 Reverse flow air filter arrangement and method 61 1996
5,938,804 Reverse flow air filter arrangement and method 55 1997
5,897,676 Reverse flow air filter arrangement and method 146 1998
6,004,366 Reverse flow air filter arrangement and method 40 1998
* 6,258,145 Reverse flow air filter arrangement 30 1999
* 6,322,602 Reverse flow air filter arrangement 57 2001
 
BALDWIN FILTERS, INC. (1)
5,484,466 Air filter element with radial seal sealing gasket 161 1994
 
VILTER MANUFACTURING CORPORATION (1)
4,516,994 Apparatus for separating liquid droplets from gas 58 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 Inc. (1)
4,759,783 Sealing arrangement for inlet air filter 71 1987
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
KOHLER CO. (6)
8,052,780 Air cleaner assembly 8 2006
D632770 Cyclonic air cleaner housing 5 2008
8,808,432 Cyclonic air cleaner 0 2009
8,585,805 Cyclonic air cleaner 0 2009
8,419,834 Air cleaner assembly 3 2010
8,801,819 Air cleaner assembly 0 2013
 
DONALDSON COMPANY, INC. (24)
7,455,707 Reverse flow air filter arrangement and method 4 2003
7,070,642 Air cleaner; replaceable filter cartridges; and, methods 46 2003
* 2004/0134,171 Air cleaner; replaceable filter cartridges; and, methods 19 2003
8,216,335 Air cleaner; replaceable filter cartridges; and methods 11 2005
7,537,631 Filter cartridges; air cleaners; and methods 35 2005
7,524,349 Air cleaner; air filter cartridge and method of manufacturing 35 2006
7,662,203 Air cleaner; replaceable filter cartridges; and, methods 38 2006
8,273,143 Air cleaner, replaceable filter cartridges, and methods 5 2007
8,414,675 Air cleaner; air filter cartridge and method of manufacturing 11 2008
8,292,984 Air cleaner arrangments with end support for cartridge; components; and, methods 12 2008
8,066,791 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 14 2008
8,038,756 Air cleaner arrangements; components; and, methods 11 2008
7,981,186 Air cleaner; air filter cartridge and method of manufacturing 15 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 7 2009
7,988,757 Air cleaner; replaceable filter cartridges; and, methods 15 2010
8,545,588 Air cleaner arrangements; components; and, methods 3 2011
8,480,778 Air cleaner arrangements; components; and, methods 5 2011
8,394,166 Air cleaner; replaceable filter cartridges; and, methods 12 2012
8,784,523 Air cleaner replaceable filter cartridges; and, methods 0 2012
8,814,973 Air cleaner arrangements with end support for cartridge; components; and, methods 1 2012
8,702,831 Air cleaner; replaceable filter cartridges; and, methods 0 2013
8,852,309 Air cleaner; replaceable filter cartridges; and, methods 0 2013
9,039,802 Air cleaner; replaceable filter cartridges; and, methods 0 2014
 
BALDWIN FILTERS, INC. (3)
7,815,705 Air filter with composite end cap 5 2005
7,628,837 Air filter with composite end cap 4 2005
8,016,922 Air filter with composite end cap 4 2010
 
Donaldson Company, Pnc. (1)
8,460,425 Air cleaner; replaceable filter cartridges; and, methods 4 2011
* Cited By Examiner