US Patent No: 7,537,631

Number of patents in Portfolio can not be more than 2000

Filter cartridges; air cleaners; and methods

Stats

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

Importance

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Abstract

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

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
DONALDSON COMPANY, INC.MINNEAPOLIS, MN713

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finnerty, Carolyn J Bloomington, MN 39 1005
Gieseke, Steven Scott Richfield, MN 93 2095
Iddings, Douglas Lee Waconia, MN 20 162
Juliar, William M Coon Rapids, MN 19 388
LaVallee, Gregory Monticello, MN 10 84
Schrage, Kevin Spring Valley, MN 17 108
Scott, James R Chanhassen, MN 53 481

Cited Art

Patent Info (Count) # Cites Year
 
DONALDSON COMPANY, INC. (31)
4,211,543 Air cleaner with replaceable filter element 81 1978
4,350,509 Disposable air cleaner 54 1981
4,491,460 Air cleaner and deflecting intake tube 44 1983
4,720,292 Cylindrical air filter with lightweight housing and radially directed seal 153 1986
4,950,317 Air filter assembly and method of putting filter element in same 46 1989
5,082,476 Filtration arrangement and method 134 1990
5,547,480 Cylindrical air filter with radially directed seal 155 1994
5,613,992 Reverse flow air filter arrangement and method 109 1994
5,545,241 Air cleaner 43 1995
5,690,712 Reverse flow air filter arrangement and method 49 1996
5,938,804 Reverse flow air filter arrangement and method 43 1997
D401306 Filter element 35 1997
6,051,042 Air cleaner assembly 38 1997
6,099,606 Air filtration arrangements having spacer constructions 33 1998
5,897,676 Reverse flow air filter arrangement and method 115 1998
6,004,366 Reverse flow air filter arrangement and method 30 1998
6,258,145 Reverse flow air filter arrangement 22 1999
6,419,718 Cover member and air cleaner construction; use; and, method of assembly 23 2000
6,485,535 Conically shaped air-oil separator 30 2000
D471623 Safety filter element for engine air cleaner 24 2000
D477659 Air filter element for engine air cleaner 25 2000
6,652,614 Filter system; element configuration; and methods 37 2000
D467654 Air filter element having attached cover member 19 2001
6,322,602 Reverse flow air filter arrangement 42 2001
6,413,289 Reverse flow air filter arrangement 21 2001
6,521,009 Reverse flow air filter arrangement and method 16 2001
D485339 Air filter element having attached cover member 12 2002
D481101 Filter element 15 2002
D513314 Filter element 15 2003
7,070,642 Air cleaner; replaceable filter cartridges; and, methods 26 2003
6,837,920 Filter system; element configuration; and methods 21 2003
 
FILTERWERK MANN & HUMMEL GMBH (9)
5,071,456 Air filter with radially sealing filter insert 46 1990
5,120,337 Intake air filter for the internal combustion engine of a motor vehicle 41 1991
5,167,683 Intake air filter for the internal combustion engine of a motor vehicle 66 1991
5,736,040 Filter assembly including a reinforced radial seal 23 1994
5,741,421 Filter device 39 1995
5,730,769 Air filter with scaling bead freely movable in the radial direction 70 1995
5,893,937 Air filter especially for cleaning combustion air for internal combustion engines 48 1997
5,951,729 Filter for the air intake of an internal combustion engine 34 1998
6,602,308 Air filter 11 1999
 
NELSON INDUSTRIES, INC. (6)
6,149,700 Increased flow capacity filter 84 1999
6,436,162 Twist and lock filter housing with anti-rotation stop 33 2000
6,402,798 Twist and lock filter housing with nontorsional anti-rotation stop 57 2000
6,383,244 Filter with retained safety element 36 2000
6,416,561 Open flow filter with safety element 59 2000
6,398,832 High flow capacity filter 29 2001
 
AIR-MAZE CORPORATION (4)
4,349,363 Filter element ledge gasket 46 1980
5,605,555 Air/oil separator with interlocked flange 36 1995
5,755,842 Air cleaner having removable end cap 63 1997
5,800,581 Air cleaner having filter element integrally formed with housing end cap 65 1997
 
BALDWIN FILTERS, INC. (4)
5,484,466 Air filter element with radial seal sealing gasket 133 1994
5,685,985 Environmentally friendly filter cartridge 133 1995
5,919,279 Self contained heavy-duty air filter 18 1998
6,447,567 Air filter element with integral radial seal gasket 52 2001
 
PALL CORPORATION (4)
4,402,830 Corrugated filter element with external spiral tape support 145 1982
4,609,465 Filter cartridge with a connector seal 109 1984
5,290,445 Filtering apparatus 45 1993
5,605,625 Filter assembly 46 1995
 
AB VOLVO (2)
5,160,519 Intake air filter for an internal combustion engine 24 1992
5,238,476 Filter device, particularly intake air filter device for combustion engines 16 1992
 
BHA GROUP, INC. (2)
5,632,791 Unitary filter cartridge 59 1994
6,440,188 Air filter assembly capable of top and bottom loading 15 2000
 
CUMMINS FILTRATION IP, INC. (2)
5,753,117 Replaceable filter element and snap-on filter lid assembly 41 1996
5,882,367 Rotatable sealed filter outlet 27 1997
 
POROUS MEDIA CORPORATION (2)
5,250,179 Compactable filter and compactable filter mounting means 59 1992
5,916,435 Conical coreless filter assembly and element 31 1997
 
TOYODA BOSHOKU CORPORATION (2)
5,755,844 Resin-made air cleaner 32 1995
5,720,790 Filter element 56 1996
 
ALLIED SIGNAL (1)
5,064,458 Heavy duty air filter with multipurpose end seal 18 1990
 
BEECHAM GROUP P.L.C. (1)
4,853,394 N-('-B-hydroxyethylpiperid-4-yl esters and amides 51 1986
 
DEERE & C0MPANY (1)
5,137,557 Suction air filter for combustion engines 38 1991
 
DEERE & COMPANY (1)
5,277,157 Mounting arrangement for an air cleaner 45 1993
 
DUSTEX CORPORATION (1)
4,955,996 Top loading dust collector 30 1989
 
ECIA - EQUIPEMENTS ET COMPOSANTS POUR L'INDUSTRIE AUTOMOBILE (1)
4,588,426 Air filter for internal combustion engine 27 1984
 
ELECTROLUX HOME CARE PRODUCTS LTD. (1)
6,558,453 Bagless dustcup 38 2001
 
FLEETGUARD, INC. (1)
6,585,838 Enhanced pleatability of meltblown media by ultrasonic processing 9 2000
 
FRAM CORPORATION (1)
4,235,611 Air filter 19 1979
 
LIFE SYSTEMS, INC. (1)
4,838,901 Lightweight filter 59 1988
 
MC CARROLL, GLENN G. (1)
4,488,889 Air cleaner tank 30 1983
 
MEMCOR, INC., A CORP. OF DE (1)
4,801,383 Selective twist filtration roving 22 1984
 
NIHON SCHUMACHER KABUSHIKI KAISHA (1)
4,728,423 Plural cylindrical filter units with displacement support 29 1986
 
PLEATCO, LLC (1)
5,211,846 Replacement filter cartridge assembly 126 1990
 
PUROLATOR FACET, INC. (1)
5,045,192 Filter assembly with lockable lug means 52 1989
 
SIEMENS ELECTRIC LIMITED (1)
5,865,863 Combined air cleaner-resonator 53 1997
 
SOCIETE SIEBEC (1)
5,601,717 Filter media cartridge 64 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 25 1994
 
UNITED STATES OF AMERICA (1)
5,112,417 Method of controlling the increase in potlife of propellants during processing 18 1991
 
WESTERN FILTER CORPORATION (1)
5,984,109 Filter assembly including a disposable coreless filter element 37 1997
 
WIX FILTRATION CORP. (1)
5,720,788 Air filter element and air filter assembly employing the filter element 26 1995
 
YAMAHA HATSUDOKI KABUSHIKI KAISHA (1)
4,227,898 Air cleaner 29 1979
 
YARDNEY CORPORATION (1)
4,495,072 Filter screen device 44 1983
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (6)
4,222,755 Air filter arrangement to permit cleaning without removing element 43 1978
4,498,915 Air filters 28 1980
4,303,426 Automobile air filter having replaceable and readily disposable filter element 37 1980
4,764,191 Air filter 33 1987
5,118,417 High-strength disposable tube filter 48 1990
5,116,499 High-strength spin-on tube filter 31 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
DONALDSON COMPANY, INC. (13)
8,216,335 Air cleaner; replaceable filter cartridges; and methods 1 2005
8,273,143 Air cleaner, replaceable filter cartridges, and methods 0 2007
8,414,675 Air cleaner; air filter cartridge and method of manufacturing 0 2008
8,404,029 Crankcase ventilation filter arrangments; components; and, methods 0 2008
8,292,984 Air cleaner arrangments with end support for cartridge; components; and, methods 0 2008
8,066,791 Air cleaner arrangements with internal and external support for cartridge; components; and, methods 3 2008
8,038,756 Air cleaner arrangements; components; and, methods 3 2008
8,216,334 Air filter arrangement; assembly; and, methods 0 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 3 2009
7,988,757 Air cleaner; replaceable filter cartridges; and, methods 3 2010
8,262,762 Evacuation valve arrangements; pulse jet air cleaner systems using same; and, methods 0 2011
8,394,166 Air cleaner; replaceable filter cartridges; and, methods 0 2012
 
MANN+HUMMEL GMBH (1)
8,202,341 Filter 1 2009

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Nov 26, 2012
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
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00