WO1989001818A1 - Cylindrical air filter with lightweight housing and radially directed seal - Google Patents
Cylindrical air filter with lightweight housing and radially directed seal Download PDFInfo
- Publication number
- WO1989001818A1 WO1989001818A1 PCT/US1987/002232 US8702232W WO8901818A1 WO 1989001818 A1 WO1989001818 A1 WO 1989001818A1 US 8702232 W US8702232 W US 8702232W WO 8901818 A1 WO8901818 A1 WO 8901818A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- filter
- filter element
- housing
- end cap
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
- B01D46/2414—End caps including additional functions or special forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
- B01D2271/022—Axial sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
- B01D2271/027—Radial sealings
Definitions
- This invention relates generally to air cleaners or filters and more particularly relates to air cleaners with cylindrical, pleated paper filter elements used primarily with over-the-road trucks and agri ⁇ cultural tractors.
- the air is drawn into a housing and radially inwardly through the filter element for axial discharge therefrom.
- the cylindrical air filter element is sealed within the housing so that all air entering the housing must pass through the walls of the filter element.
- sealing of the filter ele ⁇ ment in the housing has been accomplished by compressing the outlet end of the filter element against the end wall of the housing, and by providing a gasket between the end of the filter element and the housing end wall.
- An example of this is shown in the Anderson et al. u. s. Patent No. 3,078,650, issued February 26, 1963, in which a yoke assembly cooperating with a threaded wing bolt and nut is used to compress the filter element against the end wall of the housing to prevent leakage of air around the filter element.
- Various other latches and clamping devices have been used to effect a positive clean air seal in such filter assemblies.
- axial compression sealing techniques requires filter elements constructed so as not to collapse under compression, and requires the use of relatively heavy-gauge steel in the housing to withstand the pressures. Because both the filter housing and the filter element must be strong and rigid when using such techniques, improvements in the area of low-cost, light ⁇ weight elements and housings have been hampered. With respect to the housings, non-engineering grades of plastics as well as some molding processes could not be safely utilized.
- the present invention provides an air cleaner construction wherein the positive clean air seal is established between the radially inwardly facing surface of the filter element end cap and the tubular air outlet member so that there is no need to compress the filter element as in the prior art to achieve a seal between the end of the filter element and the housing.
- this is accomplished by molding the ring-like end cap at the open end of the filter ele ⁇ ment from a urethane foam material having a relatively soft, rubber-like consistency, the cylindrical inner surface thereof being constructed and arranged to fit over and sealingly engage an inner end portion of a " tubular air outlet member.
- a relatively lightweight housing can then be provided to channel the flow of air through the filter element.
- the housing can be dimen- sionally unstable because the housing does not have to support any clamping forces as in the prior art. No mechanical aids or clamps are necessary to exert outside force because the seal is self-generated when the end cap is inserted over the tubular outlet member, and the sealing forces are enhanced by the air pressure dif ⁇ ferential exerted on the filter element during operation thereof.
- the housing can be constructed from a relatively light plastic material or from a thinner metal. The structural requirements of the filter element are also reduced because it does not have to withstand mechanical compression.
- the Gauer U. S. Patent No. 4,135,899, issued January 23, 1979, discloses a typical prior art clamping arrangement for holding both a primary filter and a safety filter in a cylindrical housing.
- the safety filter of the Gauer device has an annular resilient mounting member 133 with an internal groove adapted to engage a bead on the end of the air outlet tube.
- This connection is not relied upon or designed to provide a positive clean air seal.
- the axially outer end of member 133 has a flattened surface to sealingly engage the end wall of the housing.
- the radially extending lip 134 of member 133 is compressed against the end wall of the housing by means of a clamping arrangement similar to that heretofore described.
- the Gauer patent does not teach or suggest the desira ⁇ bility of utilizing a radially inwardly directed seal in order to eliminate the clamping device.
- the present invention provides the designer with a variety of inherent lightweight design options having a performance equivalent to air cleaners designed according to the state of the art.
- the design is co - patable to non-metallic I.E. commodity (non-engineering grade) plastic housings with large expansion/contraction ratios.
- the lightweight plastic housing and element have good vibration dampening/absorption characterics, further enhancing minimal housing structure require ⁇ ments.
- Another advantage is that the gasket is located inside of the filter element so that it is protected during shipping and handling.
- FIGURE 1 is a view in side elevation of an air cleaner according to the invention, portions thereof being broken away and portions being shown in section?
- FIGURE 2 is a view in perspective of a filter element according to the invention, with portions of the housing being shown schematically in broken lines;
- FIGURE 3 is an enlarged fragmentary portion of the outlet area showing the tubular outlet member removed from the resilient end cap.
- FIG. 1 an air cleaner or filter having a housing 10 with a generally cylindrical outer wall 10a, a first generally closed end 10b comprising a generally circular end wall having an axial outlet opening 10c, and a generally open second end having a circular out ⁇ wardly extending flange lOd to which is connected a removable cover 11 by means of a plurality of threaded bolts 12a and plastic nuts 12b.
- Housing 10 is cylindri ⁇ cal with respect to a longitudinal axis 13.
- Formed in the outer wall 10a is a peripheral air inlet opening 14.
- a generally tubular or cylindrical filter ele ⁇ ment 15 is carried within housing 10 coaxial therewith.
- Filter element 15 has an inner liner 15a and an outer liner 15b, both being cylindrical, and both being constructed from perforated metal.
- a cylindrical pleated paper filter 16 is mounted between the inner liner 15a and the outer liner 15b.
- Filter element 15 has a closed end 17 in the form of a circular cap of a urethane foam material molded thereon and having a rela ⁇ tively soft, rubber-like consistency. Cap 17 is molded over and holds together the ends of liners 15a, 15b and filter 16 and extends across that end of the filter element 15 to provide a closed end.
- Cap 17 has a plura ⁇ lity of protrusions 17a extending axially outwardly therefrom for contact with the cover 11.
- the diameter of housing 10 around cap 17 is about the same as the outside diameter of the cap 17 to hold filter element 15 centered within the housing.
- Closed end wall 10b is provided with an axially outwardly extending tubular portion lOe around axial air outlet opening 10c.
- a generally cylindrical outlet member 20 is mounted in outlet opening 10c having an outer smaller diameter portion 20a and an inner larger diameter portion 20b connected by a planar ring portion 20c.
- outer portion 20a is formed to be of slightly larger diameter to provide a wide groove between it and ring portion 20c which con ⁇ forms in shape and size to the inner surface of tubular portion lOe of housing 10 so that when tubular member 20 is inserted into axial opening 10c from the interior of housing 10 the outer portion 20a thereof snaps over and snugly engages tubular portion lOe, and ring portion 20c engages the inner surface of housing end wall 10b to hold the tubular member 20 in place.
- the housing is shaped at the junction of wall 10b and tubular portion lOe to provide a circular opening for an O-ring seal 21 which functions to prevent air leakage between housing 10 and tubular member 20.
- the inner portion 20b of tubular member 20 When mounted in place as shown in FIG. 1, the inner portion 20b of tubular member 20 extends a short distance into the interior of filter element 15 coaxially therewith.
- End cap 25 is preferably made from an elastomer such as a urethane foam material having a relatively soft, rubber ⁇ like consistency so that it is capable of functioning as a seal or gasket material.
- End cap 25, as shown in FIG. 3, is preferably molded so as to have a radially inwardly facing surface between the end edges thereof, most of which has a diameter slightly smaller than the outer diameter of inner portion 20b of tubular member 20.
- the inwardly facing surface 25a has a diameter at the outer face 25c of end cap 25 of about the same size as the outer diameter of the tubular member 20 and a gradually reducing diameter toward the inner face 25d of end cap 25 which is less than the outside diameter of member 20.
- the elastomer material of end cap 25 is thus compressed at the surface 25a to provide a positive clean air seal between the end cap 25 and the outlet member 20.
- the innermost end of portion 20b is formed to have a slightly smaller diameter so that end cap 25 can easily be inserted over portion 20b.
- End cap 25 thus has a generally cylindrical inner surface 25a of gradually reducing diameter from outside to inside constructed and arranged to fit over and sealingly engage the inner por ⁇ tion 20b of outlet member 20 to thus provide a positive air seal between the end cap 25 and inner portion 20b of outlet member 20.
- End cap 25 is also provided with a plurality of axially outwardly extending, arcuate projections or protrusions 25b which engage end wall 10b to hold the filter element in place.
- the relationship between end cap 25 and tubular outlet member 20 maintains filter element 15 in a coaxial relationship with housing 10 at the outlet end of the air cleaner.
- the distance between closed end 10b of housing 10 and cover 11 is such as to lightly compress the pro ⁇ jections or protrusions 17a, 25b to ' minimize or dampen axial movements of filter element 15 * in the housing 10.
- the engine draws air through the filter assembly from housing inlet 14 into a distribution chamber 26 formed between outer wall 10a and outer liner 15b.
- the contaminated incoming air is thus distributed generally evenly over the outer surface of filter element 15 and is drawn through the pleated paper filter 16 into the interior of filter element 15 for discharge through outlet opening 10c. All of the foreign material carried by the incoming air is thus deposited on the pleated paper filter 16. It is important that all of the incoming air be passed through the filter, because if the dirty incoming air is permitted to escape around the filter, the engine may be damaged. _ The dirty air cannot escape around the filter at the closed end because that end is completely covered by cap 17.
- the housing 10 is constructed from a commodity grade plastic material.
- Such a material would ordinarily not be strong enough to provide the axial compression sealing required by the prior art techniques. With the present sealing tech ⁇ nique, however, such strength is not required, so that a lesser material can be used for the housing.
- a standard filter element has been shown because that construction is available.
- the standard filter element 15 uses relatively heavy perforated metal liners 15a, 15b in order to withstand the standard compression sealing techniques.
- the structure of the filter element might also be modified as development of this invention progresses because the same strength and rigidity is not required using the new sealing technique.
- the filter element must be strong enough to withstand the pressures caused by air flow therethrough, but it is no longer necessary to withstand the axial compression forces.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US90/002950 US4720292B1 (en) | 1986-07-14 | 1986-07-14 | Cylindrical air filter with lightweight housing and radially directed seal |
KR1019890700784A KR950012519B1 (en) | 1987-09-03 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
PCT/US1987/002232 WO1989001818A1 (en) | 1986-07-14 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
DE3751225T DE3751225T2 (en) | 1986-07-14 | 1987-09-03 | CYLINDRICAL AIR FILTER WITH A LIGHT HOUSING AND RADIAL SEAL. |
JP62505675A JP2605072B2 (en) | 1986-07-14 | 1987-09-03 | Air filter device |
EP87906256A EP0329659B1 (en) | 1986-07-14 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
BR8707863A BR8707863A (en) | 1986-07-14 | 1987-09-03 | CYLINDRICAL AIR FILTER WITH LIGHT HOUSING AND RADIALLY DIRECTED SEALING |
AU79698/87A AU610837B2 (en) | 1986-07-14 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
ZA876699A ZA876699B (en) | 1986-07-14 | 1987-09-08 | Cylindrical air filter with lightweight housing and radially directed seal |
CA000546944A CA1340177C (en) | 1986-07-14 | 1987-09-15 | Cylindrical air filter with lightweight housing and radially directed seal |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US90/002950 US4720292B1 (en) | 1986-07-14 | 1986-07-14 | Cylindrical air filter with lightweight housing and radially directed seal |
PCT/US1987/002232 WO1989001818A1 (en) | 1986-07-14 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
ZA876699A ZA876699B (en) | 1986-07-14 | 1987-09-08 | Cylindrical air filter with lightweight housing and radially directed seal |
CA000546944A CA1340177C (en) | 1986-07-14 | 1987-09-15 | Cylindrical air filter with lightweight housing and radially directed seal |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1989001818A1 true WO1989001818A1 (en) | 1989-03-09 |
Family
ID=27426494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1987/002232 WO1989001818A1 (en) | 1986-07-14 | 1987-09-03 | Cylindrical air filter with lightweight housing and radially directed seal |
Country Status (9)
Country | Link |
---|---|
US (1) | US4720292B1 (en) |
EP (1) | EP0329659B1 (en) |
JP (1) | JP2605072B2 (en) |
AU (1) | AU610837B2 (en) |
BR (1) | BR8707863A (en) |
CA (1) | CA1340177C (en) |
DE (1) | DE3751225T2 (en) |
WO (1) | WO1989001818A1 (en) |
ZA (1) | ZA876699B (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0676228A1 (en) * | 1994-04-05 | 1995-10-11 | G.U.D. Filters (Atlantis) (Proprietary) Limited | Air filter |
WO1997026980A1 (en) * | 1996-01-26 | 1997-07-31 | Tecnocar Srl | Air filter for industrial vehicles equipped with polyurethane end caps and process for manufacturing said filter |
GB2333468A (en) * | 1998-01-22 | 1999-07-28 | Ross Bryan Barrington | Filter cartridge containing pleated filter element with projecting ribs |
EP1163945A1 (en) * | 2000-06-17 | 2001-12-19 | Filterwerk Mann + Hummel Gmbh | Cylindrical filter cartridge with supporting tube |
EP0885044B1 (en) * | 1996-03-06 | 2002-11-20 | FILTERWERK MANN + HUMMEL GmbH | Conical fluid filter |
WO2004039476A1 (en) * | 2002-10-28 | 2004-05-13 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US6966940B2 (en) | 2002-04-04 | 2005-11-22 | Donaldson Company, Inc. | Air filter cartridge |
WO2007085427A1 (en) * | 2006-01-26 | 2007-08-02 | Carl Freudenberg Kg | Filter element with connecting element |
WO2008045326A2 (en) | 2006-10-06 | 2008-04-17 | Donaldson Company, Inc. | Air cleaner, replaceable filter cartridges, and methods |
US7524349B2 (en) | 2005-05-03 | 2009-04-28 | Donaldson Company, Inc. | Air cleaner; air filter cartridge and method of manufacturing |
EP2241364A1 (en) | 2005-05-03 | 2010-10-20 | Donaldson Company, Inc. | Air cleaner |
EP2644247A1 (en) | 2004-03-24 | 2013-10-02 | Donaldson Company, Inc. | Air cleaner cartridge |
WO2014078796A2 (en) | 2012-11-19 | 2014-05-22 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and, methods |
US9221004B2 (en) | 2007-07-20 | 2015-12-29 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
US9914084B2 (en) | 2012-11-19 | 2018-03-13 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and methods |
US11504664B2 (en) | 2017-05-09 | 2022-11-22 | Donaldson Company, Inc. | Adapter and air filter cartridge being adapted for use with such an adapter |
Families Citing this family (150)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4720292B1 (en) * | 1986-07-14 | 1991-09-10 | Cylindrical air filter with lightweight housing and radially directed seal | |
US4765811A (en) * | 1987-10-16 | 1988-08-23 | Beckon Weir E | Top removal filter cartridge |
US5028330A (en) * | 1989-06-12 | 1991-07-02 | Allied-Signal Inc. | Filter & process for manufacturing filters using material cured by ultraviolet radiation for end caps |
SE500902C2 (en) * | 1989-07-05 | 1994-09-26 | Volvo Ab | Filter device, in particular intake filter for internal combustion engines |
SE8902440L (en) * | 1989-07-05 | 1991-01-06 | Volvo Ab | FILTERING DEVICE, INNOVATION BATTERY AIR FILTER FOR COMBUSTION ENGINES |
DE3934433A1 (en) * | 1989-10-14 | 1991-04-25 | Mann & Hummel Filter | AIR FILTER WITH RADIAL SEALING FILTER INSERT |
DE4024898A1 (en) * | 1990-08-06 | 1992-02-13 | Mann & Hummel Filter | INTAKE AIR FILTER FOR THE COMBUSTION ENGINE OF A VEHICLE |
US5238474A (en) * | 1990-10-19 | 1993-08-24 | Donaldson Company, Inc. | Filtration arrangement |
US5082476A (en) * | 1990-10-19 | 1992-01-21 | Donaldson Company, Inc. | Filtration arrangement and method |
DE4241586C1 (en) * | 1992-12-10 | 1994-01-27 | Mann & Hummel Filter | Air filter |
BR9407599A (en) * | 1993-09-24 | 1997-01-07 | Donaldson Co Inc | Assembly to provide radial yield between two air duct elements |
US5415677A (en) * | 1993-12-28 | 1995-05-16 | Dana Corporation | Air filters including filters configured for both radial and axial sealing |
US5547480A (en) * | 1994-01-21 | 1996-08-20 | Donaldson Company, Inc. | Cylindrical air filter with radially directed seal |
JP3468436B2 (en) * | 1994-09-22 | 2003-11-17 | 豊田紡織株式会社 | Resin air cleaner |
US5556440A (en) * | 1994-10-20 | 1996-09-17 | Fleetguard, Inc. | Pressure-actuated radial air filter seal |
US5613992A (en) * | 1994-11-23 | 1997-03-25 | Donaldson Company, Inc. | Reverse flow air filter arrangement and method |
US5938804A (en) * | 1994-11-23 | 1999-08-17 | Donaldson Company, Inc. | Reverse flow air filter arrangement and method |
US6004366A (en) * | 1994-11-23 | 1999-12-21 | Donaldson Company, Inc. | Reverse flow air filter arrangement and method |
US5803941A (en) * | 1995-01-12 | 1998-09-08 | Donaldson Company, Inc. | Filter element |
DE29623144U1 (en) * | 1995-01-12 | 1997-12-18 | Donaldson Co Inc | Filter element |
US5545241B1 (en) * | 1995-01-17 | 1999-09-28 | Donaldson Co Inc | Air cleaner |
US5669949A (en) * | 1995-04-21 | 1997-09-23 | Donaldson Company, Inc. | Air filtration arrangement |
DE19519438A1 (en) * | 1995-05-26 | 1996-11-28 | Mann & Hummel Filter | Air filters, in particular for cleaning combustion air for internal combustion engines |
US5720788A (en) * | 1995-06-30 | 1998-02-24 | Dana Corporation | Air filter element and air filter assembly employing the filter element |
US5700304A (en) * | 1996-02-29 | 1997-12-23 | Donaldson Company, Inc. | Filter with protective shield |
US5858044A (en) * | 1996-07-11 | 1999-01-12 | Donaldson Company, Inc. | Filter arrangement including removable filter with first and second media secured together |
USD404807S (en) * | 1996-07-11 | 1999-01-26 | Donaldson Company, Inc. | Filter sleeve |
US5779900A (en) * | 1996-11-22 | 1998-07-14 | Nelson Industries, Inc. | In-situ cleanable filter with filtered cleanser |
US6085915A (en) * | 1996-11-22 | 2000-07-11 | Nelson Industries, Inc. | Back-washable spin-on oil filter |
DE19712679A1 (en) * | 1997-03-26 | 1998-10-01 | Mann & Hummel Filter | Air filter |
US5882367A (en) * | 1997-06-26 | 1999-03-16 | Nelson Industries, Inc. | Rotatable sealed filter outlet |
US6051042A (en) * | 1997-09-12 | 2000-04-18 | Donaldson Company, Inc. | Air cleaner assembly |
AU9312298A (en) | 1997-09-12 | 1999-04-05 | Donaldson Company Inc. | Air cleaner assembly and method |
US6096108A (en) * | 1997-10-22 | 2000-08-01 | Donaldson Company, Inc. | Air cleaner mounting arrangement and method |
AU2970899A (en) | 1998-02-19 | 1999-09-06 | Donaldson Company Inc. | Air filtration arrangements and methods |
USD425977S (en) * | 1998-03-24 | 2000-05-30 | Donaldson Company, Inc. | Inside surface of a filter element having insert construction |
US6093237A (en) * | 1998-06-04 | 2000-07-25 | Donaldson Company, Inc. | Stack filter assembly and methods |
US6007608A (en) * | 1998-07-10 | 1999-12-28 | Donaldson Company, Inc. | Mist collector and method |
US6152979A (en) * | 1998-10-29 | 2000-11-28 | Donaldson Company, Inc. | Air cleaner filter with removable jacket; and method |
US6261334B1 (en) | 1999-01-29 | 2001-07-17 | Nelson Industries, Inc. | High flow capacity filter |
US6391076B1 (en) | 1999-01-29 | 2002-05-21 | Nelson Industries, Inc. | Full flow filter |
US6149700A (en) | 1999-01-29 | 2000-11-21 | Nelson Industries, Inc. | Increased flow capacity filter |
CN1590746B (en) * | 1999-02-26 | 2010-04-14 | 唐纳森公司 | Sealing system for filter |
US6179890B1 (en) | 1999-02-26 | 2001-01-30 | Donaldson Company, Inc. | Air cleaner having sealing arrangement between media arrangement and housing |
US6190432B1 (en) | 1999-02-26 | 2001-02-20 | Donaldson Company, Inc. | Filter arrangement; sealing system; and methods |
CN1361708A (en) | 1999-06-03 | 2002-07-31 | 唐纳森公司 | Multistage air cleaner including pulse cleaning system |
EP1795249B1 (en) | 2000-09-05 | 2018-07-25 | Donaldson Company, Inc. | Air filtration arrangements having fluted media constructions |
US6743273B2 (en) | 2000-09-05 | 2004-06-01 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
US6800117B2 (en) * | 2000-09-05 | 2004-10-05 | Donaldson Company, Inc. | Filtration arrangement utilizing pleated construction and method |
US6673136B2 (en) | 2000-09-05 | 2004-01-06 | Donaldson Company, Inc. | Air filtration arrangements having fluted media constructions and methods |
EP1820553B1 (en) | 2000-09-05 | 2015-07-01 | Donaldson Company, Inc. | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures |
US6416561B1 (en) | 2000-10-20 | 2002-07-09 | Nelson Industries, Inc. | Open flow filter with safety element |
US6383244B1 (en) | 2000-10-20 | 2002-05-07 | Nelson Industries, Inc. | Filter with retained safety element |
US6652614B2 (en) | 2000-12-04 | 2003-11-25 | Donaldson Company, Inc. | Filter system; element configuration; and methods |
US6511599B2 (en) | 2000-12-18 | 2003-01-28 | Nelson Industries, Inc. | Multi-element cylindrical filter with equalized flow |
US6447567B1 (en) | 2001-05-14 | 2002-09-10 | Baldwin Filters, Inc. | Air filter element with integral radial seal gasket |
US6991112B2 (en) | 2002-03-05 | 2006-01-31 | Romanow Enterprises, Inc. | Disposable filter cartridge |
CN1623034A (en) * | 2002-03-08 | 2005-06-01 | 赫鲁·普拉桑塔·维贾亚 | Knocked-down air filter for internal combustion engine |
US6955701B2 (en) | 2002-03-28 | 2005-10-18 | Donaldson Company, Inc. | Filter element and use thereof; methods of manufacture |
ATE543560T1 (en) | 2002-05-09 | 2012-02-15 | Donaldson Co Inc | SIDE ACCESS AIR FILTER |
US7537631B2 (en) * | 2002-10-28 | 2009-05-26 | Donaldson Company, Inc. | Filter cartridges; air cleaners; and methods |
KR20050098922A (en) | 2003-02-11 | 2005-10-12 | 도널드선 컴파니 인코포레이티드 | Air cleaner arrangements; serviceable filter elements;and,method |
DE10354401A1 (en) * | 2003-03-14 | 2004-09-23 | Mann + Hummel Gmbh | Air filter for IC engine comprises cylindrical filter insert, filter medium being held at one end by plate with axial gripping components and at opposite end by hollow cylindrical collar with concentric sealing ring |
US6902598B2 (en) | 2003-05-02 | 2005-06-07 | Fleetguard, Inc. | Filter with efficiently sealed end |
US7008465B2 (en) * | 2003-06-19 | 2006-03-07 | Donaldson Company, Inc. | Cleanable high efficiency filter media structure and applications for use |
BRPI0416397B1 (en) * | 2003-11-12 | 2015-07-28 | Donaldson Co Inc | Air cleaner, method of maintaining an air cleaner and method of installing filter element. |
US20090266041A1 (en) * | 2003-12-22 | 2009-10-29 | Donaldson Company, Inc. | Seal arrangement for filter element; Filter element assembly; and, methods |
CA2550734C (en) * | 2003-12-22 | 2015-06-30 | Donaldson Company, Inc. | Filter element comprising a seal arrangement and method for making the same |
US7682416B2 (en) | 2004-02-17 | 2010-03-23 | Donaldson Company, Inc. | Air cleaner arrangements; serviceable filter elements; and, methods |
US7311748B2 (en) * | 2004-03-02 | 2007-12-25 | Parker-Hannifin Corporation | Air filter assembly system and method |
US20050229563A1 (en) * | 2004-04-19 | 2005-10-20 | Holzmann Mark V | Filter element |
US20050235617A1 (en) * | 2004-04-23 | 2005-10-27 | Brian Read | Mist collector arrangement and methods |
GB0409548D0 (en) * | 2004-04-29 | 2004-06-02 | King S College London | Robotic hand |
US7905936B2 (en) | 2004-04-30 | 2011-03-15 | Donaldson Company, Inc. | Filter arrangements; housing; assemblies; and, methods |
EP1748831B1 (en) | 2004-04-30 | 2012-06-13 | Donaldson Company, Inc. | Filter assemblies and method |
EP1781397B1 (en) | 2004-06-18 | 2013-06-12 | Donaldson Company, Inc. | Air cleaner arrangements and methods |
WO2006026241A1 (en) | 2004-08-25 | 2006-03-09 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US20110197556A1 (en) | 2004-11-02 | 2011-08-18 | Baldwin Filters, Inc. | Filter element |
US7318851B2 (en) * | 2004-11-02 | 2008-01-15 | Baldwin Filters, Inc. | Filter element |
US20060091061A1 (en) * | 2004-11-02 | 2006-05-04 | Baldwin Filters, Inc. | Filter assembly with sealing system |
US7931725B2 (en) | 2004-11-02 | 2011-04-26 | Baldwin Filters, Inc. | Fluted filter apparatus |
US8042694B2 (en) * | 2004-11-02 | 2011-10-25 | Baldwin Filters, Inc. | Gathered filter media for an air filter and method of making same |
US20060091064A1 (en) * | 2004-11-02 | 2006-05-04 | Baldwin Filters, Inc. | Filter apparatus with separable seal support frame |
US20060090431A1 (en) * | 2004-11-02 | 2006-05-04 | Baldwin Filters, Inc. | Filter assembly with combination filter element |
US20070186528A1 (en) * | 2006-02-15 | 2007-08-16 | Baldwin Filters, Inc. | Fluted filter apparatus |
US20060091084A1 (en) * | 2004-11-02 | 2006-05-04 | Baldwin Filters, Inc. | Fluted filter media with intermediate flow restriction and method of making same |
US7255300B2 (en) | 2004-11-03 | 2007-08-14 | Baldwin Filters, Inc. | Method and apparatus for winding a filter media pack |
US7909954B2 (en) | 2004-11-03 | 2011-03-22 | Baldwin Filters, Inc. | Method and apparatus for winding a filter media pack |
US7294178B2 (en) * | 2004-11-08 | 2007-11-13 | Visteon Global Technologies, Inc. | Low loss hydrocarbon (HC) adsorber device for air induction system |
US7828870B1 (en) | 2004-11-24 | 2010-11-09 | Cummins Filtration Ip, Inc. | Filter assembly with cost effective seal |
US7413588B2 (en) * | 2004-11-24 | 2008-08-19 | Fleetguard, Inc. | High efficiency, low restriction, cost effective filter |
US7520913B2 (en) | 2005-02-04 | 2009-04-21 | Donaldson Company, Inc. | Non-cylindrical filter elements, and methods |
ATE495811T1 (en) | 2005-08-16 | 2011-02-15 | Donaldson Co Inc | AIR PURIFIER WITH ANTI-TWIST ARRANGEMENT AND METHOD |
WO2007044677A1 (en) | 2005-10-11 | 2007-04-19 | Donaldson Company, Inc. | Air filter arrangement; assembly; and, methods |
WO2007047433A2 (en) * | 2005-10-12 | 2007-04-26 | Kohler Co. | Air cleaner assembly |
US7628837B2 (en) * | 2005-10-19 | 2009-12-08 | Baldwin Filters, Inc. | Air filter with composite end cap |
US7815705B2 (en) * | 2005-10-19 | 2010-10-19 | Baldwin Filters, Inc. | Air filter with composite end cap |
ATE518576T1 (en) | 2005-11-09 | 2011-08-15 | Donaldson Co Inc | SEAL ARRANGEMENT FOR FILTER CARTRIDGE |
US7641055B2 (en) * | 2005-11-10 | 2010-01-05 | Donaldson Company, Inc. | Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy |
US7708797B2 (en) | 2006-01-20 | 2010-05-04 | Donaldson Company, Inc. | Air cleaner configured for receipt of various sized filter cartridges; components thereof; and, methods |
US7753982B2 (en) * | 2006-02-17 | 2010-07-13 | Baldwin Filters, Inc. | Filter with drained jacket, seal indicator/lock means, and seal baffle |
US7740679B2 (en) * | 2006-04-18 | 2010-06-22 | Baldwin Filters, Inc. | Air filter element with composite molded end cap |
CN103084021B (en) * | 2006-06-22 | 2015-07-01 | 唐纳森公司 | Air cleaner arrangements, parts and method thereof |
US7713321B2 (en) * | 2006-06-22 | 2010-05-11 | Donaldson Company, Inc. | Air cleaner arrangements; components thereof; and, methods |
US8361180B2 (en) * | 2006-11-27 | 2013-01-29 | E I Du Pont De Nemours And Company | Durable nanoweb scrim laminates |
US9757676B2 (en) | 2006-12-06 | 2017-09-12 | Baldwin Filters, Inc. | Method and apparatus for winding a filter element |
US10040020B2 (en) | 2006-12-06 | 2018-08-07 | Baldwin Filters, Inc. | Fluid filter apparatus having filter media wound about a winding frame |
US8038013B2 (en) * | 2007-03-06 | 2011-10-18 | E.I. Du Pont De Nemours And Company | Liquid filtration media |
US7993523B2 (en) * | 2007-03-06 | 2011-08-09 | E. I. Du Pont De Nemours And Company | Liquid filtration media |
US8414675B2 (en) * | 2007-04-03 | 2013-04-09 | Donaldson Company, Inc. | Air cleaner; air filter cartridge and method of manufacturing |
US8404029B2 (en) | 2007-06-14 | 2013-03-26 | Donaldson Company, Inc. | Crankcase ventilation filter arrangments; components; and, methods |
US8292984B2 (en) | 2007-07-20 | 2012-10-23 | Donaldson Company, Inc. | Air cleaner arrangments with end support for cartridge; components; and, methods |
WO2009033040A1 (en) | 2007-09-07 | 2009-03-12 | Donaldson Company, Inc. | Air filter assembly; components thereof; and, methods |
US8679217B2 (en) * | 2007-09-07 | 2014-03-25 | E I Du Pont De Nemours And Company | Pleated nanoweb structures |
DE202007013822U1 (en) | 2007-10-02 | 2009-02-19 | Mann+Hummel Gmbh | Filter element and filter system |
DE202007014822U1 (en) | 2007-10-02 | 2009-02-19 | Mann+Hummel Gmbh | Filter element Zackendichtung |
DE202007014821U1 (en) | 2007-10-02 | 2009-02-26 | Mann+Hummel Gmbh | Filter element V-seal |
US9545593B2 (en) * | 2007-11-01 | 2017-01-17 | Baldwin Filters, Inc. | Winding core pressure relief for fluted filter |
US8430941B2 (en) | 2007-11-09 | 2013-04-30 | United Air Specialists, Inc. | Filter element arrangement and portable air cleaner incorporating same |
US8361181B2 (en) * | 2008-06-06 | 2013-01-29 | Donaldson Company, Inc. | Air cleaner assemblies; filter cartridges therefor; features; and, methods |
USD646368S1 (en) | 2008-06-06 | 2011-10-04 | Donaldson Company, Inc. | Filter cartridge |
USD632770S1 (en) | 2008-06-13 | 2011-02-15 | Kohler Co. | Cyclonic air cleaner housing |
US8808432B2 (en) * | 2008-06-13 | 2014-08-19 | Kohler Co. | Cyclonic air cleaner |
US8048187B2 (en) | 2008-06-30 | 2011-11-01 | Baldwin Filters, Inc. | Filter frame attachment and fluted filter having same |
US7959703B2 (en) | 2008-06-30 | 2011-06-14 | Baldwin Filters, Inc. | Fluted filter with integrated frame |
USD646369S1 (en) | 2008-07-22 | 2011-10-04 | Donaldson Company, Inc. | Filter cartridge |
US20100175555A1 (en) * | 2008-09-12 | 2010-07-15 | Ismael Ferrer | Polyamide Fine Fibers |
DE102009008450B4 (en) | 2009-02-11 | 2011-07-21 | Mann + Hummel GmbH, 71638 | Filter element and filter system |
DE102009021512A1 (en) | 2009-05-15 | 2010-11-18 | Volkswagen Ag | Air filter i.e. drum air filter, for internal combustion engine of e.g. motor vehicle, has filter element forming part of housing wall, where housing elements are made of flexible material i.e. silicone-like natural rubber |
CN102574042B (en) | 2009-08-03 | 2015-10-07 | 气体专用设备联合公司 | Filter cleaning system and method |
DE102010010964B4 (en) * | 2010-03-10 | 2022-12-22 | Mann+Hummel Gmbh | Filter element for fluid filtration and air filter unit, in particular for intake air of internal combustion engines. |
US9346001B2 (en) | 2011-02-25 | 2016-05-24 | Donaldson Company, Inc. | Air filter cartridges, components thereof; and, air cleaner assemblies |
EA028952B1 (en) | 2011-10-26 | 2018-01-31 | Дональдсон Компани, Инк. | Filter assemblies, components and features thereof, methods of use and assembly thereof |
US9387425B2 (en) | 2011-10-26 | 2016-07-12 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
JP6216378B2 (en) | 2012-07-25 | 2017-10-18 | ボールドウィン・フィルターズ・インコーポレーテッドBaldwin Filters Inc | Filter housing, pleated filter, and safety filter |
EP3021952B1 (en) | 2013-07-19 | 2020-10-21 | Donaldson Company, Inc. | Filter element and air cleaner |
DE102013014488A1 (en) * | 2013-09-02 | 2015-03-05 | Mann + Hummel Gmbh | Filter system and filter element for a filter system |
US9457307B2 (en) | 2013-09-02 | 2016-10-04 | Mann+Hummel Gmbh | Filter system with filter element |
DE102013014493B4 (en) * | 2013-09-02 | 2016-09-29 | Mann + Hummel Gmbh | filter system |
US9440178B2 (en) * | 2014-06-23 | 2016-09-13 | Caterpillar Inc. | Pleated filter media |
BR112017026777B1 (en) | 2015-06-12 | 2022-11-16 | Donaldson Company, Inc | EXHAUST TREATMENT DEVICE |
CN113153587B (en) | 2016-02-12 | 2023-03-10 | 唐纳森公司 | Filter element, air cleaner assembly, and methods of use and assembly |
JP7018018B2 (en) | 2016-02-19 | 2022-02-09 | ボールドウィン・フィルターズ・インコーポレーテッド | Surface coated filters and methods |
US10682597B2 (en) | 2016-04-14 | 2020-06-16 | Baldwin Filters, Inc. | Filter system |
EP3548160B1 (en) | 2016-12-01 | 2021-10-06 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
MX2020001477A (en) | 2017-08-09 | 2020-03-20 | Donaldson Co Inc | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods. |
DE112019005928T5 (en) | 2018-11-28 | 2021-09-30 | Cummins Filtration Ip, Inc. | CURVED SEAL ON FILTER ELEMENT AND PROTECTIVE SEAL FORM |
USD1002792S1 (en) | 2019-02-05 | 2023-10-24 | Donaldson Company, Inc. | Filter cartridge |
JP7340037B2 (en) | 2019-05-01 | 2023-09-06 | アセンド・パフォーマンス・マテリアルズ・オペレーションズ・リミテッド・ライアビリティ・カンパニー | Filtration media containing a polyamide nanofiber layer |
CN113795321B (en) | 2019-05-14 | 2022-12-02 | 康明斯滤清系统知识产权公司 | Curved lobe seal locking air filter system |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE545333A (en) * | 1955-02-23 | |||
DE671029C (en) * | 1936-06-20 | 1939-01-30 | Bosch Gmbh Robert | air cleaner |
FR1100273A (en) * | 1953-05-07 | 1955-09-19 | Fram Corp | pleated cartridge filter element |
FR1131647A (en) * | 1954-09-24 | 1957-02-25 | Air filter with interchangeable paper element with large surface area | |
FR1291243A (en) * | 1961-05-31 | 1962-04-20 | Fram Corp | Air filters |
FR2214505A1 (en) * | 1973-01-24 | 1974-08-19 | Cfea | Filter element for air, oil or petrol - is mfd. from folded paper, felt or porous plastics, in cylindrical shape |
FR2261041A1 (en) * | 1974-02-18 | 1975-09-12 | Cfea | |
FR2268551A1 (en) * | 1974-04-24 | 1975-11-21 | Cfea | |
US4135899A (en) * | 1977-05-25 | 1979-01-23 | Donaldson Company, Inc. | Safety filter for air cleaner |
GB2005777A (en) * | 1977-10-05 | 1979-04-25 | Donaldson Co Inc | Dust collectors |
US4227898A (en) * | 1978-01-31 | 1980-10-14 | Yamaha Hatsudoki Kabushiki Kaisha | Air cleaner |
US4491460A (en) * | 1983-01-31 | 1985-01-01 | Donaldson Company, Inc. | Air cleaner and deflecting intake tube |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3169844A (en) * | 1961-01-24 | 1965-02-16 | Wix Corp | Air filter |
US3078650A (en) * | 1961-03-20 | 1963-02-26 | Donaldson Co Inc | Air cleaner |
US3147100A (en) * | 1962-01-15 | 1964-09-01 | Dollinger Corp | Filter |
US3672130A (en) * | 1970-04-02 | 1972-06-27 | Donaldson Co Inc | Retention means for air cleaner element |
JPS5368310A (en) * | 1976-11-30 | 1978-06-17 | Toyota Motor Corp | Air cleaner for internal combustion engine |
JPS583928B2 (en) * | 1977-03-08 | 1983-01-24 | エイエスケ−精工株式会社 | Composite vibration transport device |
AR214922A1 (en) * | 1977-05-25 | 1979-08-15 | Donaldson Co Inc | A TWO STAGE AIR PURIFIER |
US4128251A (en) * | 1977-09-21 | 1978-12-05 | Champion Laboratories, Inc. | Sealing gasket for air filter |
US4211543A (en) * | 1978-04-24 | 1980-07-08 | Donaldson Company, Inc. | Air cleaner with replaceable filter element |
JPS54143981A (en) * | 1978-05-01 | 1979-11-09 | Tomoharu Yamaguchi | Air filter and its preparation |
US4235611A (en) * | 1979-04-23 | 1980-11-25 | Fram Corporation | Air filter |
DE3001674A1 (en) * | 1980-01-18 | 1981-07-23 | Fichtel & Sachs Ag, 8720 Schweinfurt | Drinking water filter - with filter element including acidulating and biocidal substances |
US4350509A (en) * | 1981-07-24 | 1982-09-21 | Donaldson Company, Inc. | Disposable air cleaner |
JPS5920819B2 (en) * | 1982-03-12 | 1984-05-15 | 三和機工株式会社 | Quadruple earth auger device |
US4488889A (en) * | 1983-03-07 | 1984-12-18 | Mccarroll Glenn G | Air cleaner tank |
US4609465A (en) * | 1984-05-21 | 1986-09-02 | Pall Corporation | Filter cartridge with a connector seal |
US4720292B1 (en) * | 1986-07-14 | 1991-09-10 | Cylindrical air filter with lightweight housing and radially directed seal |
-
1986
- 1986-07-14 US US90/002950 patent/US4720292B1/en not_active Expired - Fee Related
-
1987
- 1987-09-03 AU AU79698/87A patent/AU610837B2/en not_active Expired
- 1987-09-03 WO PCT/US1987/002232 patent/WO1989001818A1/en not_active Application Discontinuation
- 1987-09-03 BR BR8707863A patent/BR8707863A/en not_active IP Right Cessation
- 1987-09-03 DE DE3751225T patent/DE3751225T2/en not_active Revoked
- 1987-09-03 JP JP62505675A patent/JP2605072B2/en not_active Expired - Lifetime
- 1987-09-03 EP EP87906256A patent/EP0329659B1/en not_active Revoked
- 1987-09-08 ZA ZA876699A patent/ZA876699B/en unknown
- 1987-09-15 CA CA000546944A patent/CA1340177C/en not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE671029C (en) * | 1936-06-20 | 1939-01-30 | Bosch Gmbh Robert | air cleaner |
FR1100273A (en) * | 1953-05-07 | 1955-09-19 | Fram Corp | pleated cartridge filter element |
FR1131647A (en) * | 1954-09-24 | 1957-02-25 | Air filter with interchangeable paper element with large surface area | |
BE545333A (en) * | 1955-02-23 | |||
FR1291243A (en) * | 1961-05-31 | 1962-04-20 | Fram Corp | Air filters |
FR2214505A1 (en) * | 1973-01-24 | 1974-08-19 | Cfea | Filter element for air, oil or petrol - is mfd. from folded paper, felt or porous plastics, in cylindrical shape |
FR2261041A1 (en) * | 1974-02-18 | 1975-09-12 | Cfea | |
FR2268551A1 (en) * | 1974-04-24 | 1975-11-21 | Cfea | |
US4135899A (en) * | 1977-05-25 | 1979-01-23 | Donaldson Company, Inc. | Safety filter for air cleaner |
GB2005777A (en) * | 1977-10-05 | 1979-04-25 | Donaldson Co Inc | Dust collectors |
US4227898A (en) * | 1978-01-31 | 1980-10-14 | Yamaha Hatsudoki Kabushiki Kaisha | Air cleaner |
US4491460A (en) * | 1983-01-31 | 1985-01-01 | Donaldson Company, Inc. | Air cleaner and deflecting intake tube |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0676228A1 (en) * | 1994-04-05 | 1995-10-11 | G.U.D. Filters (Atlantis) (Proprietary) Limited | Air filter |
WO1997026980A1 (en) * | 1996-01-26 | 1997-07-31 | Tecnocar Srl | Air filter for industrial vehicles equipped with polyurethane end caps and process for manufacturing said filter |
EP0885044B1 (en) * | 1996-03-06 | 2002-11-20 | FILTERWERK MANN + HUMMEL GmbH | Conical fluid filter |
GB2333468A (en) * | 1998-01-22 | 1999-07-28 | Ross Bryan Barrington | Filter cartridge containing pleated filter element with projecting ribs |
EP1163945A1 (en) * | 2000-06-17 | 2001-12-19 | Filterwerk Mann + Hummel Gmbh | Cylindrical filter cartridge with supporting tube |
US6662954B2 (en) | 2000-06-17 | 2003-12-16 | Filterwerk Mann & Hummel Gmbh | Cylindrical filter cartridge with support tube |
US11161072B2 (en) | 2002-04-04 | 2021-11-02 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US6966940B2 (en) | 2002-04-04 | 2005-11-22 | Donaldson Company, Inc. | Air filter cartridge |
US7008467B2 (en) | 2002-04-04 | 2006-03-07 | Donaldson Company, Inc. | Air cleaner and method of filtering |
US10500533B2 (en) | 2002-04-04 | 2019-12-10 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US9993763B2 (en) | 2002-04-04 | 2018-06-12 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US9295936B2 (en) | 2002-04-04 | 2016-03-29 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US7491254B2 (en) | 2002-04-04 | 2009-02-17 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US7645310B2 (en) | 2002-04-04 | 2010-01-12 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US8852309B2 (en) | 2002-10-28 | 2014-10-07 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
EP2243537A1 (en) | 2002-10-28 | 2010-10-27 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US11478741B2 (en) | 2002-10-28 | 2022-10-25 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
WO2004039476A1 (en) * | 2002-10-28 | 2004-05-13 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US10717034B2 (en) | 2002-10-28 | 2020-07-21 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
EP1987872A1 (en) | 2002-10-28 | 2008-11-05 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges, and, methods |
US9353657B2 (en) | 2002-10-28 | 2016-05-31 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US9610530B2 (en) | 2004-03-24 | 2017-04-04 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
EP2644247A1 (en) | 2004-03-24 | 2013-10-02 | Donaldson Company, Inc. | Air cleaner cartridge |
EP2679293A1 (en) | 2004-03-24 | 2014-01-01 | Donaldson Company, Inc. | Air Cleaner |
US11014036B2 (en) | 2004-03-24 | 2021-05-25 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
US10335730B2 (en) | 2004-03-24 | 2019-07-02 | Donaldson Company, Inc. | Filter elements; air cleaner; assembly; and, methods |
EP3470130A1 (en) | 2004-03-24 | 2019-04-17 | Donaldson Company, Inc. | Air filter cartridge and air cleaner arrangement |
US7524349B2 (en) | 2005-05-03 | 2009-04-28 | Donaldson Company, Inc. | Air cleaner; air filter cartridge and method of manufacturing |
US7981186B2 (en) | 2005-05-03 | 2011-07-19 | Donaldson Company Inc. | Air cleaner; air filter cartridge and method of manufacturing |
EP2241364A1 (en) | 2005-05-03 | 2010-10-20 | Donaldson Company, Inc. | Air cleaner |
WO2007085427A1 (en) * | 2006-01-26 | 2007-08-02 | Carl Freudenberg Kg | Filter element with connecting element |
WO2008045326A2 (en) | 2006-10-06 | 2008-04-17 | Donaldson Company, Inc. | Air cleaner, replaceable filter cartridges, and methods |
EP2664372A1 (en) | 2006-10-06 | 2013-11-20 | Donaldson Company, Inc. | Air cleaner, replaceable filter cartridges, and methods |
US9586166B2 (en) | 2006-10-06 | 2017-03-07 | Donaldson Company, Inc. | Air cleaner replaceable filter cartridges; and, methods |
US11007462B2 (en) | 2006-10-06 | 2021-05-18 | Donaldson Company, Inc. | Air cleaner; replaceable filter cartridges; and, methods |
US10245544B2 (en) | 2007-07-20 | 2019-04-02 | Donaldson Company, Inc. | Air cleaner arrangements; components; and methods |
US9221004B2 (en) | 2007-07-20 | 2015-12-29 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
US10751661B2 (en) | 2007-07-20 | 2020-08-25 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
US10786772B2 (en) | 2007-07-20 | 2020-09-29 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
US9238189B2 (en) | 2007-07-20 | 2016-01-19 | Donaldson Company, Inc. | Air cleaner arrangements with internal and external support for cartridge; components; and, methods |
US10124285B2 (en) | 2007-07-20 | 2018-11-13 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
WO2014078796A2 (en) | 2012-11-19 | 2014-05-22 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and, methods |
US9914084B2 (en) | 2012-11-19 | 2018-03-13 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and methods |
US11504664B2 (en) | 2017-05-09 | 2022-11-22 | Donaldson Company, Inc. | Adapter and air filter cartridge being adapted for use with such an adapter |
Also Published As
Publication number | Publication date |
---|---|
DE3751225T2 (en) | 1995-11-02 |
JPH02501201A (en) | 1990-04-26 |
US4720292A (en) | 1988-01-19 |
BR8707863A (en) | 1990-03-01 |
JP2605072B2 (en) | 1997-04-30 |
ZA876699B (en) | 1988-05-25 |
CA1340177C (en) | 1998-12-08 |
DE3751225D1 (en) | 1995-05-11 |
US4720292B1 (en) | 1991-09-10 |
EP0329659A1 (en) | 1989-08-30 |
US4720292B2 (en) | 1994-02-22 |
EP0329659B1 (en) | 1995-04-05 |
AU610837B2 (en) | 1991-05-30 |
AU7969887A (en) | 1989-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4720292A (en) | Cylindrical air filter with lightweight housing and radially directed seal | |
US5071456A (en) | Air filter with radially sealing filter insert | |
EP0740574B1 (en) | Filter housing | |
US4304580A (en) | Air cleaner with suspended cartridge | |
US5415677A (en) | Air filters including filters configured for both radial and axial sealing | |
US5736040A (en) | Filter assembly including a reinforced radial seal | |
US5053129A (en) | Filter device | |
EP0787033B1 (en) | Pressure-actuated radial air filter seal | |
US4159197A (en) | Suspension gasket seal and system for baghouse filter units | |
US4236901A (en) | Air cleaner with secondary air filter element | |
US6375698B1 (en) | Long filter assembly with connection device | |
CA2636666C (en) | Method and apparatus for reinforcing a tubular-shaped sealing collar extending from a filter apparatus | |
US5503189A (en) | Flange protector having flexible coupling insert and method for detachably coupling same to a conduit | |
EP0480993B1 (en) | Filter device, particularly for an internal combustion engine intake air filter | |
JPH05502620A (en) | filter device | |
GB2162087A (en) | Air filter | |
CA2237959C (en) | A filter element for a fluid filter | |
US5443721A (en) | Filter cartridge mounting assembly | |
US20220054962A1 (en) | Filter element and method for servicing a filter system | |
US5238476A (en) | Filter device, particularly intake air filter device for combustion engines | |
EP1490155B1 (en) | Mobile in-tank filter and assembly therefor | |
JPH0529054Y2 (en) | ||
JP2688479B2 (en) | Filter element | |
KR950012519B1 (en) | Cylindrical air filter with lightweight housing and radially directed seal | |
JP2605072C (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR JP KR |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1987906256 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1987906256 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1987906256 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1987906256 Country of ref document: EP |