Reverse flow air filter arrangement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6413289
APP PUB NO 20020014058A1
SERIAL NO

09974485

Stats

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, MN661

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bartels, Dolan Cresco, IA 12 493
Crenshaw, Bruce Indianapolis, IN 18 515
Engel, Donald Francis Prior Lake, MN 12 573
Hacker, John Bloomington, MN 15 470
Harold, Don late of Prior Lake, MN 5 197

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
4764191 Air filter 49 1987
 
Filterwerk Mann & Hummel GmbH (2)
4632682 Cartridge-type oil separator air filter 63 1986
5167683 Intake air filter for the internal combustion engine of a motor vehicle 90 1991
 
RadioMed Corporation (2)
8320995 Fiducial marker with rings 7 2007
8320995 Fiducial marker with rings 7 2007
 
WIX FILTRATION CORP. (2)
5415677 Air filters including filters configured for both radial and axial sealing 118 1993
5487767 Radially sealed air filters 139 1995
 
GENERAL MOTORS CORPORATION (1)
4735640 Air cleaner liquid drain and filter assembly 17 1987
 
DONALDSON COMPANY, INC. (10)
4720292 Cylindrical air filter with lightweight housing and radially directed seal 204 1986
5238474 Filtration arrangement 148 1992
5547480 Cylindrical air filter with radially directed seal 202 1994
5613992 Reverse flow air filter arrangement and method 166 1994
5690712 Reverse flow air filter arrangement and method 71 1996
5938804 Reverse flow air filter arrangement and method 61 1997
5897676 Reverse flow air filter arrangement and method 165 1998
6004366 Reverse flow air filter arrangement and method 46 1998
* 6258145 Reverse flow air filter arrangement 35 1999
* 6322602 Reverse flow air filter arrangement 66 2001
 
BALDWIN FILTERS, INC. (1)
5484466 Air filter element with radial seal sealing gasket 179 1994
 
VILTER MANUFACTURING CORPORATION (1)
4516994 Apparatus for separating liquid droplets from gas 60 1984
 
PALL CORPORATION (2)
5006235 Barrier flange filter assembly including cover 23 1986
5779903 Filter assemblies and end caps for filter assemblies 56 1996
 
MAEDA LIMITED (1)
4848989 In-line filter assembly for compressed air 39 1987
 
ALLIED-SIGNAL INC. (1)
4759783 Sealing arrangement for inlet air filter 77 1987
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
KOHLER CO. (8)
8052780 Air cleaner assembly 9 2006
* 2007/0079,794 Air cleaner assembly 9 2006
D632770 Cyclonic air cleaner housing 9 2008
8808432 Cyclonic air cleaner 0 2009
8585805 Cyclonic air cleaner 0 2009
8419834 Air cleaner assembly 4 2010
8801819 Air cleaner assembly 1 2013
9206721 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. (38)
7455707 Reverse flow air filter arrangement and method 5 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
7070642 Air cleaner; replaceable filter cartridges; and, methods 60 2003
* 2004/0134,171 Air cleaner; replaceable filter cartridges; and, methods 35 2003
8216335 Air cleaner; replaceable filter cartridges; and methods 20 2005
7537631 Filter cartridges; air cleaners; and methods 54 2005
7524349 Air cleaner; air filter cartridge and method of manufacturing 49 2006
* 2006/0254,229 Air cleaner; air filter cartridge and method of manufacturing 10 2006
7662203 Air cleaner; replaceable filter cartridges; and, methods 51 2006
* 2006/0225,389 Air cleaner; replaceable filter cartridges; and, methods 9 2006
* 2008/0066,435 Air cleaner assembly; components; and, methods 20 2007
* 2008/0041,026 Air cleaner assembly; components; and, methods 12 2007
8273143 Air cleaner, replaceable filter cartridges, and methods 10 2007
8414675 Air cleaner; air filter cartridge and method of manufacturing 22 2008
* 2010/0146,920 AIR CLEANER; AIR FILTER CARTRIDGE AND METHOD OF MANUFACTURING 41 2008
8292984 Air cleaner arrangments with end support for cartridge; components; and, methods 27 2008
8066791 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 24 2008
8038756 Air cleaner arrangements; components; and, methods 21 2008
* 2009/0100,813 Air cleaner arrangements; components; and, methods 23 2008
7981186 Air cleaner; air filter cartridge and method of manufacturing 23 2009
* 2009/0249,756 Air cleaner; air filter cartridge and method of manufacturing 15 2009
* 8361181 Air cleaner assemblies; filter cartridges therefor; features; and, methods 4 2009
* 2010/0037,570 Air cleaner assemblies; filter cartridges therefor; features; and, methods 10 2009
7988757 Air cleaner; replaceable filter cartridges; and, methods 24 2010
8545588 Air cleaner arrangements; components; and, methods 7 2011
8480778 Air cleaner arrangements; components; and, methods 10 2011
9346001 Air filter cartridges, components thereof; and, air cleaner assemblies 0 2012
8394166 Air cleaner; replaceable filter cartridges; and, methods 24 2012
8784523 Air cleaner replaceable filter cartridges; and, methods 4 2012
8814973 Air cleaner arrangements with end support for cartridge; components; and, methods 5 2012
8702831 Air cleaner; replaceable filter cartridges; and, methods 4 2013
8852309 Air cleaner; replaceable filter cartridges; and, methods 9 2013
9238189 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 1 2013
9221004 Air cleaner arrangements; components; and, methods 1 2013
9039802 Air cleaner; replaceable filter cartridges; and, methods 2 2014
9586166 Air cleaner replaceable filter cartridges; and, methods 0 2014
9353657 Air cleaner; replaceable filter cartridges; and, methods 1 2014
 
BALDWIN FILTERS, INC. (4)
7815705 Air filter with composite end cap 23 2005
7628837 Air filter with composite end cap 5 2005
* 2007/0084,170 Air filter with composite foam urethane and rigid urethane end cap 3 2005
8016922 Air filter with composite end cap 15 2010
 
Donaldson Company, Pnc. (1)
8460425 Air cleaner; replaceable filter cartridges; and, methods 11 2011
* Cited By Examiner