US Patent No: 7,537,631

Number of patents in Portfolio can not be more than 2000

Filter cartridges; air cleaners; and methods

ALSO PUBLISHED AS: 20060086075
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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.

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First Claim

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Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DONALDSON COMPANY, INC.MINNEAPOLIS, MN794

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finnerty, Carolyn J Bloomington, MN 50 1384
Gieseke, Steven Scott Richfield, MN 124 2897
Iddings, Douglas Lee Waconia, MN 22 307
Juliar, William M Coon Rapids, MN 26 567
LaVallee, Gregory Monticello, MN 14 169
Schrage, Kevin Spring Valley, MN 27 193
Scott, James R Chanhassen, MN 64 666

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Donaldson Company, Inc. (31)
4,211,543 Air cleaner with replaceable filter element 89 1978
4,350,509 Disposable air cleaner 68 1981
4,491,460 Air cleaner and deflecting intake tube 54 1983
4,720,292 Cylindrical air filter with lightweight housing and radially directed seal 177 1986
4,950,317 Air filter assembly and method of putting filter element in same 57 1989
5,082,476 Filtration arrangement and method 159 1990
5,547,480 Cylindrical air filter with radially directed seal 179 1994
5,613,992 Reverse flow air filter arrangement and method 134 1994
5,545,241 Air cleaner 59 1995
5,690,712 Reverse flow air filter arrangement and method 60 1996
5,938,804 Reverse flow air filter arrangement and method 52 1997
6,051,042 Air cleaner assembly 51 1997
D401306 Filter element 49 1997
6,099,606 Air filtration arrangements having spacer constructions 43 1998
5,897,676 Reverse flow air filter arrangement and method 138 1998
6,004,366 Reverse flow air filter arrangement and method 39 1998
6,258,145 Reverse flow air filter arrangement 29 1999
6,419,718 Cover member and air cleaner construction; use; and, method of assembly 35 2000
6,485,535 Conically shaped air-oil separator 43 2000
6,652,614 Filter system; element configuration; and methods 55 2000
D471623 Safety filter element for engine air cleaner 33 2000
D477659 Air filter element for engine air cleaner 33 2000
D467654 Air filter element having attached cover member 32 2001
6,322,602 Reverse flow air filter arrangement 53 2001
6,413,289 Reverse flow air filter arrangement 31 2001
6,521,009 Reverse flow air filter arrangement and method 23 2001
D485339 Air filter element having attached cover member 19 2002
D481101 Filter element 26 2002
D513314 Filter element 22 2003
7,070,642 Air cleaner; replaceable filter cartridges; and, methods 40 2003
6,837,920 Filter system; element configuration; and methods 31 2003
 
ONC SOLUTIONS, INC. (24)
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
8,320,995 Fiducial marker with rings 1 2007
 
FILTERWERK MANN & HUMMEL GMBH (9)
5,071,456 Air filter with radially sealing filter insert 54 1990
5,120,337 Intake air filter for the internal combustion engine of a motor vehicle 53 1991
5,167,683 Intake air filter for the internal combustion engine of a motor vehicle 80 1991
5,736,040 Filter assembly including a reinforced radial seal 32 1994
5,741,421 Filter device 47 1995
5,730,769 Air filter with scaling bead freely movable in the radial direction 84 1995
5,893,937 Air filter especially for cleaning combustion air for internal combustion engines 62 1997
5,951,729 Filter for the air intake of an internal combustion engine 46 1998
6,602,308 Air filter 17 1999
 
NELSON INDUSTRIES, INC. (6)
6,149,700 Increased flow capacity filter 110 1999
6,436,162 Twist and lock filter housing with anti-rotation stop 46 2000
6,402,798 Twist and lock filter housing with nontorsional anti-rotation stop 74 2000
6,383,244 Filter with retained safety element 47 2000
6,416,561 Open flow filter with safety element 85 2000
6,398,832 High flow capacity filter 46 2001
 
AIR-MAZE CORPORATION (4)
4,349,363 Filter element ledge gasket 55 1980
5,605,555 Air/oil separator with interlocked flange 47 1995
5,755,842 Air cleaner having removable end cap 77 1997
5,800,581 Air cleaner having filter element integrally formed with housing end cap 80 1997
 
BALDWIN FILTERS, INC. (4)
5,484,466 Air filter element with radial seal sealing gasket 154 1994
5,685,985 Environmentally friendly filter cartridge 165 1995
5,919,279 Self contained heavy-duty air filter 25 1998
6,447,567 Air filter element with integral radial seal gasket 66 2001
 
PALL CORPORATION (4)
4,402,830 Corrugated filter element with external spiral tape support 162 1982
4,609,465 Filter cartridge with a connector seal 131 1984
5,290,445 Filtering apparatus 53 1993
5,605,625 Filter assembly 56 1995
 
AB Volvo (2)
5,160,519 Intake air filter for an internal combustion engine 34 1992
5,238,476 Filter device, particularly intake air filter device for combustion engines 23 1992
 
CUMMINS FILTRATION IP, INC. (2)
5,753,117 Replaceable filter element and snap-on filter lid assembly 51 1996
5,882,367 Rotatable sealed filter outlet 37 1997
 
POROUS MEDIA CORPORATION (2)
5,250,179 Compactable filter and compactable filter mounting means 68 1992
5,916,435 Conical coreless filter assembly and element 40 1997
 
TOYODA BOSHOKU CORPORATION (2)
5,755,844 Resin-made air cleaner 40 1995
5,720,790 Filter element 68 1996
 
Allied Signal (1)
5,064,458 Heavy duty air filter with multipurpose end seal 26 1990
 
Beecham Group p.l.c. (1)
4,853,394 N-('-B-hydroxyethylpiperid-4-yl esters and amides 52 1986
 
BHA ALTAIR, LLC (1)
5,632,791 Unitary filter cartridge 71 1994
 
BHA GROUP, INC. (1)
6,440,188 Air filter assembly capable of top and bottom loading 17 2000
 
DEERE & C0MPANY (1)
5,137,557 Suction air filter for combustion engines 49 1991
 
DEERE & COMPANY (1)
5,277,157 Mounting arrangement for an air cleaner 56 1993
 
DUSTEX CORPORATION (1)
4,955,996 Top loading dust collector 34 1989
 
ECIA - EQUIPEMENTS ET COMPOSANTS POUR L'INDUSTRIE AUTOMOBILE (1)
4,588,426 Air filter for internal combustion engine 35 1984
 
ELECTROLUX HOME CARE PRODUCTS LTD. (1)
6,558,453 Bagless dustcup 51 2001
 
FLEETGUARD, INC. (1)
6,585,838 Enhanced pleatability of meltblown media by ultrasonic processing 15 2000
 
Fram Corporation (1)
4,235,611 Air filter 26 1979
 
Life Systems, Inc. (1)
4,838,901 Lightweight filter 72 1988
 
MC CARROLL, GLENN G. (1)
4,488,889 Air cleaner tank 41 1983
 
MEMCOR, INC., A CORP. OF DE (1)
4,801,383 Selective twist filtration roving 29 1984
 
Nihon Schumacher Kabushiki Kaisha (1)
4,728,423 Plural cylindrical filter units with displacement support 37 1986
 
PLEATCO, LLC (1)
5,211,846 Replacement filter cartridge assembly 150 1990
 
PUROLATOR FACET, INC. (1)
5,045,192 Filter assembly with lockable lug means 62 1989
 
SIEMENS ELECTRIC LIMITED (1)
5,865,863 Combined air cleaner-resonator 65 1997
 
Societe Siebec (1)
5,601,717 Filter media cartridge 77 1995
 
The United States of America as represented by the Secretary of the Navy (1)
5,442,721 Fiber-optic rotary joint with bundle collimator assemblies 32 1994
 
UNITED STATES OF AMERICA, THE (1)
5,112,417 Method of controlling the increase in potlife of propellants during processing 25 1991
 
Western Filter Corporation (1)
5,984,109 Filter assembly including a disposable coreless filter element 50 1997
 
WIX FILTRATION CORP. (1)
5,720,788 Air filter element and air filter assembly employing the filter element 34 1995
 
YAMAHA HATSUDOKI KABUSHIKI KAISHA (1)
4,227,898 Air cleaner 39 1979
 
YARDNEY CORPORATION (1)
4,495,072 Filter screen device 45 1983
 
Other [Check patent profile for assignment information] (6)
4,222,755 Air filter arrangement to permit cleaning without removing element 56 1978
4,498,915 Air filters 36 1980
4,303,426 Automobile air filter having replaceable and readily disposable filter element 45 1980
4,764,191 Air filter 40 1987
5,118,417 High-strength disposable tube filter 56 1990
5,116,499 High-strength spin-on tube filter 40 1990

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Donaldson Company, Inc. (21)
8,216,335 Air cleaner; replaceable filter cartridges; and methods 7 2005
8,273,143 Air cleaner, replaceable filter cartridges, and methods 1 2007
8,414,675 Air cleaner; air filter cartridge and method of manufacturing 6 2008
8,404,029 Crankcase ventilation filter arrangments; components; and, methods 1 2008
8,292,984 Air cleaner arrangments with end support for cartridge; components; and, methods 8 2008
8,066,791 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 11 2008
8,038,756 Air cleaner arrangements; components; and, methods 8 2008
8,216,334 Air filter arrangement; assembly; and, methods 3 2008
7,927,396 Evacuation value arrangements; pulse jet air cleaner systems using same; and, method 1 2009
7,981,186 Air cleaner; air filter cartridge and method of manufacturing 11 2009
7,988,757 Air cleaner; replaceable filter cartridges; and, methods 11 2010
8,262,762 Evacuation valve arrangements; pulse jet air cleaner systems using same; and, methods 0 2011
8,545,588 Air cleaner arrangements; components; and, methods 3 2011
8,480,778 Air cleaner arrangements; components; and, methods 1 2011
8,663,355 Air filter arrangement; assembly; and, methods 0 2012
8,394,166 Air cleaner; replaceable filter cartridges; and, methods 7 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 0 2012
8,702,831 Air cleaner; replaceable filter cartridges; and, methods 0 2013
8,834,610 Crankcase ventilation filter arrangments; components; and, methods 0 2013
8,852,309 Air cleaner; replaceable filter cartridges; and, methods 0 2013
 
The Sy-Klone Company (3)
8,529,324 Powered air cleaning system and method of making same 0 2003
D691252 Filter cartridge for air cleaner 1 2011
8,657,928 Versatile compact air precleaner, air cleaning method and disposable air filter cartridge for air precleaner 0 2011
 
MANN+HUMMEL GMBH (2)
8,202,341 Filter 2 2009
8,758,470 Intake air filter for internal combustion engines 0 2009
 
CUMMINS FILTRATION IP, INC. (1)
8,828,114 Filter element with features to improve pre-cleaning performance, sealing, and structural support 0 2011
 
Donaldson Company, Pnc. (1)
8,460,425 Air cleaner; replaceable filter cartridges; and, methods 2 2011
 
THOMSON LICENSING (1)
8,714,142 Crankcase ventilation filter assembly; components; and methods 0 2008
 
Other [Check patent profile for assignment information] (1)
D688364 Air freshener device 1 2011

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7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 26, 2016
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 26, 2020
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