USRE42174E1 - Filter with efficiently sealed end - Google Patents
Filter with efficiently sealed end Download PDFInfo
- Publication number
- USRE42174E1 USRE42174E1 US12/363,587 US36358709A USRE42174E US RE42174 E1 USRE42174 E1 US RE42174E1 US 36358709 A US36358709 A US 36358709A US RE42174 E USRE42174 E US RE42174E
- Authority
- US
- United States
- Prior art keywords
- axial
- end cap
- section
- filter
- filter element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
- 239000012530 fluid Substances 0.000 claims description 21
- 230000004323 axial length Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 13
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 36
- 239000000463 material Substances 0.000 description 15
- 239000007788 liquid Substances 0.000 description 13
- 238000000465 moulding Methods 0.000 description 8
- 238000004382 potting Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 239000012943 hotmelt Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
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
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
- B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream
-
- 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
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/12—Pleated filters
- B01D2201/127—Pleated filters with means for keeping the spacing between the pleats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
-
- 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
Abstract
A filter element has a resiliently compressible end cap at a first axial end sealing the filter and providing sealed engagement with a flow tube.A filter assembly comprising a filter media element having a first end and a second end, a first end cap disposed at the first end, and a second end cap disposed at the second end. The filter media element is shaped to form a hollow interior extending from the first end to the second end. The hollow interior defines an inner boundary of the element and the outer surface of the element defines an outer boundary. The second end cap covers both the filter media element and the hollow interior at the second end.
Description
The present application is a continuation of U.S. Reissue patent application Ser. No. 11/759,884, filed Jun. 7, 2007, which is a reissue of U.S. Pat. No. 6,902,598 and incorporated herein by reference.
The invention relates to fluid filters, and more particularly to improved sealing of the filter media end.
The invention arose during continuing development efforts relating to filter elements having pleated filter media having a plurality of pleats in a closed loop, typically annular, for example as shown in U.S. Pat. Nos. 6,149,700, 6,261,334, 6,391,076, 6,398,832, all incorporated herein by reference. The closed loop pleated filter media has an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, and has a hollow interior extending along a given axis. Fluid flows axially in the hollow interior, before or after flow through the media, depending on whether the flow is inside-out or outside-in. The filter element has an open axial end providing an axial flow passage therethrough along the axis communicating with the hollow interior.
The present invention relates to improved sealing of the pleat ends at the open axial end of the filter element, including improvements in both the effectiveness of the sealing and manufacturing efficiency for cost reduction. The invention further relates to other filter media end sealing techniques.
In one embodiment, second axial end 64 of filter element 22 is closed. A second end cap 76, FIG. 2 , of soft compressible resilient material, such as foamed potted urethane, is provided at second end 64 of filter element 22 and completely covers the axial ends 78 of the pleats including the outer pleat tips 32 and the inner pleat tips 36 at axial end 64. End cap 76 also includes a central section 80 spanning and completely covering hollow interior 38 of filter element 22 at axial end 64 of the filter element. Housing section 44 includes an annular interior sidewall 82 extending partially axially into the housing to locate and retain filter element 22 at axial end 64. In other embodiments, central section 80 of end cap 76 is omitted, and a portion of housing 44 extends into hollow interior 38 of filter element 22 to close axial end 64 of the filter element and to position axial end 64 of the filter element within the housing. Further embodiments are shown in the noted incorporated '076 patent. End cap 76 includes an annular ridge 84 engaging axial end wall 85 of housing section 44 and slightly axially compressed thereagainst to further aid in retention of filter element 22 within the housing and to accommodate axial tolerances. End cap 66 also includes an annular ridge 86 engaging axial end wall 88 of housing section 42 and slightly radially compressed thereagainst to aid in retaining filter element 22 within the housing and to accommodate axial tolerances and also to provide an axial seal to prevent bypass of dirty air from annular chamber 52 around axial end 62 of the filter element. Axial end wall 88 of housing section 42 has an outlet flow tube 90 extending therethrough. In addition to or alternatively to the axial seal at 86, end cap 66 provides a radial seal at 70 against outlet flow tube 90.
An outer liner 102, FIG. 2 , provided by an expanded wire mesh or screen or perforated metal or plastic, circumscribes filter element 22 along outer pleat tips 32 and has an axial end section 104 extending axially beyond the axial ends 68 of pleats 28. An inner liner may also be provided at inner perimeter 34 along inner pleat tips 36. As above described, flow tube 90 communicates with hollow interior 38 of the filter element along flow passage 56 and extends axially from the axial end of the filter element. End cap 66 at the axial end of the filter element bears radially between and is radially compressed between and against section 104 of outer liner 102 and inner section 96 of flow tube 90. Outer liner 102 extends axially at 104 into end cap 66 and is potted therein during the molding process, as described in the incorporated '700 patent. As noted above, sidewall 92 of end cap 66 extends axially away from the axial ends 68 of pleats 28 at the axial end of the filter element. Outer perimeter 94 of the end cap sidewall circumscribes outer liner section 104. The filter element may also include an inner liner 103, FIG. 5 , along inner pleat tips 36.
As noted, the method for molding end cap 66 onto pleated filter media 26 involves dipping axial ends 68 of the pleats into liquid castable material in trough 122 of mold 120, and engaging axial ends 68 of the pleats against dam 126 at a location between outer pleat tips 32 and inner pleat tips 36 such that dam 126 impedes flow of the liquid castable material laterally inwardly towards inner pleat tips 36. Trough 122 is provided and aligned such that it partially spans axial ends 68 of the pleats such that the laterally outward portions 72 of the axial ends of the pleats are covered by the liquid castable material during dipping, but not the laterally inward portions 74 of the axial ends of the pleats. Further in accordance with the described method, laterally inward flow of the liquid castable material is impeded along the axial ends of the pleats toward inner pleat tips 36 by providing and aligning dam 126 to engage axial ends 68 of the pleats between outer pleat tips 32 and inner pleat tips 36 such that laterally outward portions 72 of the axial ends of the pleats are covered by end cap 66, and laterally inward portions 74 of the axial ends of the pleats are uncovered by end cap 66 and are left exposed. Trough 122 and filter element 22 are aligned during the noted dipping such that outer perimeter 126 of trough 122 circumscribes outer perimeter 30 of the filter element defined by outer pleat tips 32, and inner perimeter 128 of trough 122 circumscribes inner perimeter 26 of the filter element defined by inner pleat tips 36.
The described filter construction was developed for air filters, though may be used for other fluids such as liquid. In the disclosed embodiment, fluid to be filtered flows laterally inwardly through the filter media from the outer perimeter to the inner perimeter and then flows axially in the hollow interior, such that flow passage 56 is an outlet flow passage. Alternatively, fluid to be filtered may flow axially in hollow interior 38 and then flow laterally outwardly through the filter media from the inner perimeter to the outer perimeter, in which case flow passage 56 is the inlet flow passage. In another alternative, fluid flow to or from axial end 64 of the filter element and through the media may be axial or a combination of axial and radial, for example as in the noted incorporated '076 patent. In other alternatives, metal end caps are used instead of urethane end caps, or various combinations of materials are used for the end caps. In further alternatives, outer section 90b, FIG. 7 , of the flow tube has a larger inner diameter than inner section 90c.
During further development, it has been found that there are some applications where enhanced structural integrity is desired in the end cap area at 66, for example wet conditions, heavy load conditions, vibration, and the like. There are also circumstances where cost reduction is desired. There are also circumstances where even further sealing is desired.
In one embodiment, the filter element includes in combination the noted second end cap 76 at the second axial end 64 of the filter element at axial ends 78 of the pleats and covering inner and outer pleat tips 36 and 32 and spanning radially between inner and outer perimeters 34 and 30, and also spanning hollow interior 38 and closing the second axial end of the filter element. The filter element is preferably contained in the noted housing having an end wall 220 facing the first axial end of the filter element. Flow tube 202 is part of end wall 220.
As shown in comparing FIGS. 3 , 4, 8, 9, the present construction seals the axial ends 68 of the pleats solely with urethane end cap 200, or 200a, and eliminates reliance upon hot melt 110 for sealing purposes. This eliminates the adhesive component in the design of FIGS. 3 , 4, and simplifies the production process, reducing cost. In the present construction of FIGS. 8 , 9, the axial ends 68 of the pleats 28 are sealed with the same urethane 200, or 200a, used to pot the element, rather than a combination of hot melt 110 and urethane 66 as in FIGS. 3 , 4. The present construction also eliminates reliance upon the interface between the glue 110, the filter media of the pleats 28, and the urethane 66 to prevent contaminants from passing to the clean side of the filter. The present construction further facilitates concentricity of the closed loop configuration. The present construction further enhances structural integrity, particularly in wet conditions, heavy load conditions, and vibration conditions.
It is recognized that various equivalents, alternatives and modifications are possible within the scope of the appended claims.
Claims (34)
1. A filter element comprising pleated filter media having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, said loop having a hollow interior extending along a given axis, wherein fluid flows axially in said hollow interior, said filter element having first and second axial ends, said first axial end being open and providing an axial flow passage therethrough along said axis communicating with said hollow interior, a resiliently compressible end cap at said first axial end covering said inner and outer pleat tips and spanning radially between said inner and outer perimeters, a flow tube communicating with said hollow interior and extending along said axial flow passage and engaging said end cap, wherein said flow tube at said engagement with said end cap has an inner perimeter greater than said inner perimeter defined by said inner pleat tips, and comprising in combination a second end cap at said second axial end of said filter element covering said inner and outer pleat tips and spanning radially between said inner and outer perimeters and also spanning said hollow interior and closing said second axial end of said filter element.
2. The filter element according to claim 1 wherein said inner perimeter of said flow tube at said engagement with said end cap is less than said outer perimeter defined by said outer pleat tips.
3. The filter element according to claim 2 wherein said end cap has a first section extending radially inwardly from said outer perimeter defined by said outer pleat tips, and has a second section extending radially outwardly from said inner perimeter defined by said inner pleat tips, said first and second sections meeting at a junction defining a step facing radially toward and engaging said flow tube.
4. The filter element according to claim 3 wherein said step has a first axial length, said flow tube has a tubular portion extending axially along said step, said tubular portion having an inner axial end axially facing said first axial end of said filter element, and said flow tube has a flange portion extending radially from said tubular portion and facing said first axial end of said filter element and axially spaced from said inner axial end of said tubular portion by a second axial length less than said first said axial length.
5. The filter element according to claim 3 wherein said end cap has a first axial thickness at said first section at said outer perimeter defined by said outer pleat tips, a second axial thickness at said first section at said step, a third axial thickness at said second section at said step, and a fourth axial thickness at said second section at said inner perimeter defined by said inner pleat tips, and wherein said second axial thickness is greater than said third axial thickness.
6. The filter element according to claim 5 wherein said first axial thickness is greater than said fourth axial thickness.
7. The filter element according to claim 5 wherein said first axial thickness is less than said second axial thickness.
8. The filter element according to claim 5 wherein said third and fourth axial thicknesses are substantially the same.
9. The filter element according to claim 1 comprising a housing containing said filter element, said housing having an end wall axially facing said first axial end of said filter element, and wherein said flow tube is part of said end wall.
10. The filter element according to claim 1 wherein fluid flows laterally radially through said filter element between said outer and inner perimeters, and flows axially in said hollow interior.
11. A filter element comprising a closed loop filter media member having a hollow interior extending along a given axis, wherein fluid flows axially in said hollow interior, said filter element having first and second axial ends, said first axial end being open and providing an axial flow passage therethrough along said axis communicating with said hollow interior, a resiliently compressible end cap at said first axial end, a flow tube communicating with said hollow interior and extending along said axial flow passage, said flow tube having a tubular portion engaging said end cap and forming a seal therewith, said tubular portion being cylindrical, said filter media member being non-cylindrical.
12. The filter element according to claim 11 wherein said filter media member is elliptical.
13. The filter element according to claim 11 wherein said end cap has a first section extending radially inwardly from an outer perimeter, and has a second section extending radially inwardly from said first section to an inner perimeter, said first and second sections meeting at a junction defining a step, said first section having said outer perimeter and having an inner perimeter at said step, said second section having an outer perimeter at said step and having said inner perimeter communicating with said hollow interior, said outer perimeter of said first section being non-cylindrical, said inner perimeter of said first section being cylindrical, said step being cylindrical, said outer perimeter of said second section being cylindrical.
14. The filter element according to claim 13 wherein said cylindrical tubular portion engages said end cap at said cylindrical step.
15. The filter element according to claim wherein said inner perimeter of said second section is non-cylindrical.
16. The filter element according to claim 13 wherein said filter media member and said outer perimeter of said first section of said end cap are elliptical and have a radially extending major axis and a radially extending minor axis, wherein the radial extension of said first section of said end cap along said major axis between said outer perimeter of said first section of said end cap and said step is greater than the radial extension of said first section of said end cap along said minor axis between said outer perimeter of said first section of said end cap and said step, and wherein the radial extension of said second section of said end cap along said minor axis between said step and said inner perimeter of said second section of said end cap is greater than the radial extension of said o second section of said end cap section along said major axis between said step and said inner perimeter of said second section of said end cap.
17. The filter element according to claim 11 wherein said filter media member comprises pleated filter media having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, said loop having said hollow interior extending along said given axis.
18. A filter comprising pleated filter media having a plurality of pleats in a closed loop having an outer perimeter defined by a plurality of outer pleat tips, and an inner perimeter defined by a plurality of inner pleat tips, said loop having a hollow interior extending along a given axis, wherein fluid flows axially in said hollow interior, said filter having first and second axial ends, said first axial end being open and providing an axial flow passage therethrough along said axis communicating with said hollow interior, a resiliently compressible first end cap at said first axial end covering said inner and outer pleat tips and spanning radially between said inner and outer perimeters, a second end cap at said second axial end of said filter covering said inner and outer pleat tips and spanning radially between said inner and outer perimeters and also spanning said hollow interior and closing said second axial end of said filter, and an outer liner circumscribing said filter.
19. The filter according to claim 18 wherein said outer liner circumscribes said filter at at least one of said pleated filter media and said first end cap.
20. The filter according to claim 19 wherein said outer liner circumscribes said filter at said pleated filter media.
21. The filter according to claim 20 wherein said outer liner circumscribes the entire said pleated filter media from said first axial end to said second axial end.
22. The filter according to claim 19 wherein said outer liner circumscribes said filter at said first end cap.
23. The filter according to claim 22 wherein said outer liner circumscribes a portion of said first end cap.
24. The filter according to claim 19 wherein said outer liner circumscribes said filter at both of said pleated filter media and said first end cap.
25. The filter according to claim 24 wherein said outer liner is a single one-piece member.
26. The filter according to claim 18 wherein said first end cap has a first section extending radially inwardly from said outer perimeter defined by said outer pleat tips, and has a second section extending radially outwardly from said inner perimeter defined by said inner pleat tips, said first and second sections meeting at a junction defining a step.
27. The filter according to claim 26 wherein said first end cap has a first axial thickness at said first section at said outer perimeter defined by said outer pleat tips, a second axial thickness at said first section at said step, a third axial thickness at said second section at said step, and a fourth axial thickness at said second section at said inner perimeter defined by said inner pleat tips, and wherein said second axial thickness is greater than said third axial thickness.
28. The filter according to claim 27 wherein said first axial thickness is greater than said fourth axial thickness.
29. The filter according to claim 27 wherein said first axial thickness is less than said second axial thickness.
30. The filter according to claim 27 wherein said third and fourth axial thicknesses are substantially the same.
31. The filter according to claim 18 wherein said first end cap is configured to receive a flow tube communicating with said hollow interior and extending along said axial flow passage and engaging said first end cap, wherein said flow tube at said engagement with said first end cap has an inner perimeter greater than said inner perimeter defined by said inner pleat tips, wherein said first end cap bears radially between said outer liner and said flow tube.
32. The filter according to claim 31 wherein said outer liner has at least a portion circumscribing said filter at and extending axially into said first end cap.
33. The filter according to claim 18 wherein said outer liner has a first section circumscribing said pleated filter media at said outer pleat tips, and a second section extending into said first end cap.
34. The filter according to claim 33 wherein said outer liner is a unitary one-piece member, and said second section extends integrally from said first section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/363,587 USRE42174E1 (en) | 2003-05-02 | 2009-01-30 | Filter with efficiently sealed end |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/428,459 US6902598B2 (en) | 2003-05-02 | 2003-05-02 | Filter with efficiently sealed end |
US11/759,884 USRE41713E1 (en) | 2003-05-02 | 2007-06-07 | Filter with efficiently sealed end |
US12/363,587 USRE42174E1 (en) | 2003-05-02 | 2009-01-30 | Filter with efficiently sealed end |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/428,459 Reissue US6902598B2 (en) | 2003-05-02 | 2003-05-02 | Filter with efficiently sealed end |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE42174E1 true USRE42174E1 (en) | 2011-03-01 |
Family
ID=32326637
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/428,459 Ceased US6902598B2 (en) | 2003-05-02 | 2003-05-02 | Filter with efficiently sealed end |
US11/759,884 Expired - Lifetime USRE41713E1 (en) | 2003-05-02 | 2007-06-07 | Filter with efficiently sealed end |
US12/363,587 Expired - Lifetime USRE42174E1 (en) | 2003-05-02 | 2009-01-30 | Filter with efficiently sealed end |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/428,459 Ceased US6902598B2 (en) | 2003-05-02 | 2003-05-02 | Filter with efficiently sealed end |
US11/759,884 Expired - Lifetime USRE41713E1 (en) | 2003-05-02 | 2007-06-07 | Filter with efficiently sealed end |
Country Status (3)
Country | Link |
---|---|
US (3) | US6902598B2 (en) |
DE (1) | DE102004020970B4 (en) |
GB (1) | GB2401805A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8453848B2 (en) | 2004-04-13 | 2013-06-04 | Donaldson Company, Inc. | Filter cartridge for liquid filtration; assembly; and, methods |
CN103861397A (en) * | 2012-12-17 | 2014-06-18 | 曼·胡默尔有限公司 | Air filter system, air filter element and method for exchanging an air filter element |
US8828114B2 (en) | 2010-09-16 | 2014-09-09 | Cummins Filtration Ip Inc. | Filter element with features to improve pre-cleaning performance, sealing, and structural support |
US8864866B2 (en) | 2011-10-26 | 2014-10-21 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US9067161B2 (en) | 2012-11-29 | 2015-06-30 | Donaldson Company, Inc. | Filter cartridges; features and methods of assembly; air cleaner assemblies; and, filter cartridge combinations |
US9089804B2 (en) | 2012-11-19 | 2015-07-28 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; 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 |
US9387425B2 (en) | 2011-10-26 | 2016-07-12 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US9586166B2 (en) | 2006-10-06 | 2017-03-07 | Donaldson Company, Inc. | Air cleaner replaceable filter cartridges; and, methods |
US9752474B2 (en) | 2007-06-14 | 2017-09-05 | Donaldson Company, Inc. | Filter arrangements; components; and, methods |
US10118117B2 (en) | 2013-06-06 | 2018-11-06 | Cummins Filtration Ip, Inc. | Air filter with improved performance or positioning |
US10279302B2 (en) | 2005-02-04 | 2019-05-07 | Donaldson Company, Inc. | Filter elements; air filter arrangements; and, methods |
US10758859B2 (en) | 2017-08-09 | 2020-09-01 | Donaldson Company, Inc. | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods |
USD930136S1 (en) | 2018-05-08 | 2021-09-07 | Cummins Filtration Ip, Inc. | Filter element |
US11117085B2 (en) | 2005-11-09 | 2021-09-14 | Donaldson Company, Inc. | Seal arrangement for filter element; filter element assembly; and, methods |
US11311829B2 (en) | 2016-02-12 | 2022-04-26 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
US11452952B2 (en) | 2018-05-08 | 2022-09-27 | Cummins Filtration Ip, Inc. | Oval filter with exterior elliptical radial seal and internal support structure |
USD969289S1 (en) | 2020-03-05 | 2022-11-08 | Cummins Filtration Inc. | Filter element |
US11498022B2 (en) | 2017-12-08 | 2022-11-15 | Cummins Filtration Ip, Inc. | Oval seal with stabilization contour |
US11504664B2 (en) | 2017-05-09 | 2022-11-22 | Donaldson Company, Inc. | Adapter and air filter cartridge being adapted for use with such an adapter |
US11554338B2 (en) | 2016-12-01 | 2023-01-17 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
US11633683B2 (en) | 2018-01-12 | 2023-04-25 | Cummins Filtration Ip, Inc. | Easy to service air filter |
USD1002792S1 (en) | 2019-02-05 | 2023-10-24 | Donaldson Company, Inc. | Filter cartridge |
US11969681B2 (en) | 2023-04-07 | 2024-04-30 | Cummins Filtration Ip, Inc. | Easy to service air filter |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10327441A1 (en) * | 2003-06-18 | 2005-01-05 | Daimlerchrysler Ag | Filters air |
US7537645B2 (en) * | 2004-03-24 | 2009-05-26 | Advanced Flow Engineering, Inc. | High flow air filtration system for Dodge truck |
US7347883B2 (en) * | 2004-03-24 | 2008-03-25 | Advanced Flow Engineering, Inc. | High flow air filtration system for ford truck |
DE602005024687D1 (en) | 2004-06-14 | 2010-12-23 | Donaldson Co Inc | AIR FILTER ARRANGEMENT AND METHOD |
EP1781398B1 (en) | 2004-07-20 | 2010-02-17 | Donaldson Company, Inc. | Z-filter media pack arrangement, filter cartridge, air cleaner arrangement and methods |
EP1804955B1 (en) * | 2004-08-04 | 2011-01-26 | Daimler AG | Particulate filter |
CN101596387B (en) | 2004-08-06 | 2013-02-13 | 唐纳森公司 | Air filter arrangement |
US8292983B2 (en) | 2005-01-13 | 2012-10-23 | Donaldson Company, Inc. | Air filter cartridge and air cleaner assembly |
JP5053099B2 (en) | 2005-01-13 | 2012-10-17 | ドナルドソン カンパニー,インコーポレイティド | Air filter device |
WO2007009039A1 (en) * | 2005-07-13 | 2007-01-18 | Donaldson Company, Inc. | Air filter cartridge and air filter |
US7625419B2 (en) | 2006-05-10 | 2009-12-01 | Donaldson Company, Inc. | Air filter arrangement; assembly; and, methods |
WO2008106592A1 (en) * | 2007-02-28 | 2008-09-04 | Honeywell International Inc. | Radial seal filter with open end pleats |
US8728193B2 (en) | 2007-09-07 | 2014-05-20 | Donaldson Company, Inc. | Air filter assembly; components thereof and methods |
US9492773B2 (en) * | 2008-02-26 | 2016-11-15 | Mann+Hummel Gmbh | Filter device, especially an air filter |
US8061530B2 (en) | 2009-04-09 | 2011-11-22 | Cummins Filtration Ip, Inc. | Filtration sealing system |
US8128719B1 (en) * | 2009-08-21 | 2012-03-06 | Cummins Filtration Ip Inc. | Filter element with percussion band |
US8828112B2 (en) | 2010-09-07 | 2014-09-09 | Hdt Expeditionary Systems, Inc. | Air filter |
US8677966B2 (en) | 2011-01-20 | 2014-03-25 | Advanced Flow Engineering, Inc. | Air intake flow device and system |
WO2013003769A2 (en) | 2011-06-30 | 2013-01-03 | Donaldson Company, Inc. | Air/oil separator assemblies; components; and, methods |
DE202012003252U1 (en) | 2012-03-30 | 2012-04-25 | Sartorius Stedim Biotech Gmbh | Filter housing for replaceable filters |
DE112014003011T5 (en) | 2013-06-28 | 2016-03-10 | Donaldson Company, Inc. | Filter cartridges, air cleaner assemblies, housings, features, components and methods |
US10315147B2 (en) | 2014-09-15 | 2019-06-11 | Donaldson Company, Inc. | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods |
US10894227B2 (en) | 2014-12-18 | 2021-01-19 | Cummins Filtration Ip, Inc. | Auto drain plug for a filtration apparatus |
DE112015005692T5 (en) * | 2014-12-19 | 2017-09-07 | Cummins Filtration Ip, Inc. | Air filter for pre-cleaning |
JP6687623B2 (en) | 2014-12-27 | 2020-04-22 | ドナルドソン カンパニー,インコーポレイティド | Air cleaner assembly and filter cartridge |
DE102016003456A1 (en) * | 2015-04-10 | 2016-10-13 | Mann + Hummel Gmbh | Filter holder, filter element and filter assembly |
DE102016003454A1 (en) * | 2015-04-10 | 2016-10-13 | Mann + Hummel Gmbh | Filter holder and filter assembly |
DE102016003455B4 (en) * | 2015-04-10 | 2020-08-06 | Mann+Hummel Gmbh | Filter holder and filter arrangement |
PL3363521T3 (en) * | 2015-04-10 | 2022-11-14 | Mann+Hummel Gmbh | Filter element and filter assembly |
WO2017099984A1 (en) | 2015-12-11 | 2017-06-15 | Cummins Filtration Ip, Inc. | Filter with variable cross-section axial seal |
US11167234B2 (en) | 2016-03-18 | 2021-11-09 | Cummins Filtration Ip, Inc. | Interlocked stable filter assembly |
DE112017002064T5 (en) | 2016-04-18 | 2018-12-27 | Cummins Filtration Ip, Inc. | NANOFIBER FILTER MEDIA FOR HIGH-PERFORMANCE APPLICATIONS |
DE112017001554T5 (en) | 2016-05-02 | 2018-12-13 | Cummins Filtration Ip, Inc. | FILTER WITH LOCKABLE HOUSING INTERFACE |
CN110248714B (en) | 2017-01-25 | 2022-06-07 | 康明斯过滤Ip公司 | Expandable threaded adapter for threadless housings |
CN110382075A (en) | 2017-02-21 | 2019-10-25 | 康明斯滤清系统知识产权公司 | Wavy interlocking cover-end plate interface geometry |
CN115155166B (en) | 2017-03-16 | 2024-01-26 | 康明斯滤清系统知识产权公司 | Filtration sealing system |
BR112020003970A2 (en) | 2017-08-31 | 2020-09-01 | Donaldson Company, Inc. | filter cartridges; air purifier assemblies; Accommodation; resources; components; and methods |
US10799819B2 (en) | 2018-06-11 | 2020-10-13 | Cummins Filtration Sarl | Filtration system with automatic drain plug |
CN112774441A (en) * | 2020-12-30 | 2021-05-11 | 东莞科威医疗器械有限公司 | Filtering temperature changing device |
Citations (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2599604A (en) | 1949-07-13 | 1952-06-10 | Jordan V Bauer | Filter element |
FR1131647A (en) | 1954-09-24 | 1957-02-25 | Air filter with interchangeable paper element with large surface area | |
US2962121A (en) | 1958-03-26 | 1960-11-29 | Dollinger Corp | Filter |
US3147100A (en) | 1962-01-15 | 1964-09-01 | Dollinger Corp | Filter |
US3160488A (en) | 1962-01-26 | 1964-12-08 | Dollinger Corp | Filter |
US3334753A (en) | 1964-09-21 | 1967-08-08 | Rosaen Filter Co | Filter elements |
FR2261041A1 (en) | 1974-02-18 | 1975-09-12 | Cfea | |
US4065341A (en) | 1972-11-21 | 1977-12-27 | Robert Bosch Gmbh | Method of making a liquid 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 |
US4310419A (en) | 1980-03-19 | 1982-01-12 | Nippon Soken, Inc. | Filter element for liquid straining filter |
GB2110110A (en) | 1981-10-09 | 1983-06-15 | Mann & Hummel Filter | Air filter |
DE3405719A1 (en) | 1984-02-17 | 1985-08-22 | Ing. Walter Hengst GmbH & Co KG, 4400 Münster | Rapidly changeable air filter |
US4559066A (en) | 1981-11-16 | 1985-12-17 | Process Scientific Innovations Limited | Filters for purification of gases |
US4589983A (en) | 1981-11-02 | 1986-05-20 | Donaldson Company, Inc. | Fluid filtering device |
US4609465A (en) | 1984-05-21 | 1986-09-02 | Pall Corporation | Filter cartridge with a connector seal |
US4634527A (en) | 1983-07-15 | 1987-01-06 | Marshall Dennis A G | Fluid filter element with annular sealing means |
US4720292A (en) * | 1986-07-14 | 1988-01-19 | Donaldson Company, Inc. | Cylindrical air filter with lightweight housing and radially directed seal |
US4759783A (en) | 1987-06-25 | 1988-07-26 | Allied-Signal Inc. | Sealing arrangement for inlet air filter |
US5106397A (en) | 1990-12-26 | 1992-04-21 | Ford Motor Company | Air cleaner/noise silencer assembly |
US5167683A (en) | 1990-08-06 | 1992-12-01 | Filterwerk Mann & Hummel Gmbh | Intake air filter for the internal combustion engine of a motor vehicle |
US5275636A (en) | 1992-06-04 | 1994-01-04 | Vortox Company | Air cleaner for internal combustion engine |
US5415677A (en) | 1993-12-28 | 1995-05-16 | Dana Corporation | Air filters including filters configured for both radial and axial sealing |
US5431706A (en) | 1993-10-05 | 1995-07-11 | Dry Systems Technologies | Disposable particulate filter |
US5484466A (en) | 1994-02-14 | 1996-01-16 | Baldwin Filters, Inc. | Air filter element with radial seal sealing gasket |
US5487767A (en) | 1993-09-30 | 1996-01-30 | Dana Corporation | Radially sealed air filters |
US5547480A (en) | 1994-01-21 | 1996-08-20 | Donaldson Company, Inc. | Cylindrical air filter with radially directed seal |
US5556440A (en) | 1994-10-20 | 1996-09-17 | Fleetguard, Inc. | Pressure-actuated radial air filter seal |
US5562825A (en) | 1993-05-21 | 1996-10-08 | Nippondenso Co., Ltd. | Filter element having a flat and non-flat configuration |
US5601717A (en) | 1994-11-09 | 1997-02-11 | Siebec S.A. | Filter media cartridge |
US5601626A (en) | 1994-08-04 | 1997-02-11 | Ngk Insulators, Ltd. | Support construction of filter element in dust collecting apparatus |
US5605625A (en) | 1993-02-24 | 1997-02-25 | Pall Corporation | Filter assembly |
US5632791A (en) | 1994-12-06 | 1997-05-27 | Bha Group, Inc. | Unitary filter cartridge |
US5660608A (en) | 1995-10-12 | 1997-08-26 | Eco Corporation | Filter cartridge boot |
US5669949A (en) | 1995-04-21 | 1997-09-23 | Donaldson Company, Inc. | Air filtration arrangement |
US5674393A (en) | 1996-08-13 | 1997-10-07 | Ralph Terhune | Oil filter |
US5685985A (en) | 1995-12-20 | 1997-11-11 | Baldwin Filters, Inc. | Environmentally friendly filter cartridge |
US5725624A (en) | 1994-04-14 | 1998-03-10 | Filterwerk Mann & Hummel Gmbh | Air filter for the intake air of an internal-combustion engine |
US5730769A (en) | 1992-12-10 | 1998-03-24 | Filterwerk Mann & Hummel Gmbh | Air filter with scaling bead freely movable in the radial direction |
US5741421A (en) | 1994-11-23 | 1998-04-21 | Filterwerk Mann & Hummel Gmbh | Filter device |
US5755842A (en) | 1995-07-05 | 1998-05-26 | Air-Maze Corporation | Air cleaner having removable end cap |
US5755843A (en) | 1994-05-10 | 1998-05-26 | Ab Volvo | Air filter with reusable gable plate |
US5800581A (en) | 1997-04-07 | 1998-09-01 | Air-Maze Corporation | Air cleaner having filter element integrally formed with housing end cap |
US5803941A (en) | 1995-01-12 | 1998-09-08 | Donaldson Company, Inc. | Filter element |
US5814219A (en) | 1995-04-21 | 1998-09-29 | Donaldson Company, Inc. | Pleated filter having a planar sheet of randomly arranged filaments to maintain pleat spacing |
US5830941A (en) | 1995-10-31 | 1998-11-03 | Nippon Zeon Co., Ltd. | Vulcanizable rubber composition and hose |
US5871645A (en) | 1991-06-28 | 1999-02-16 | Pall Corporation | Filter arrangement including a non-perforated housing and an axially pleated filter pack |
US5893937A (en) | 1995-05-26 | 1999-04-13 | Filterwerk Mann & Hummel Gmbh | Air filter especially for cleaning combustion air for internal combustion engines |
US5954849A (en) | 1995-01-12 | 1999-09-21 | Donaldson Company, Inc. | Filter element |
US6019804A (en) | 1997-11-25 | 2000-02-01 | S. C. Johnson & Son, Inc. | Compression-molded candle product |
US6143049A (en) | 1997-06-27 | 2000-11-07 | Donaldson Company, Inc. | Aerosol separator; and method |
US6149700A (en) | 1999-01-29 | 2000-11-21 | Nelson Industries, Inc. | Increased flow capacity filter |
US6152996A (en) | 1997-03-05 | 2000-11-28 | Air-Maze Corporation | Air cleaner element having incorporated sorption element |
US6179890B1 (en) | 1999-02-26 | 2001-01-30 | Donaldson Company, Inc. | Air cleaner having sealing arrangement between media arrangement and housing |
US6261334B1 (en) | 1999-01-29 | 2001-07-17 | Nelson Industries, Inc. | High flow capacity filter |
US6375700B1 (en) | 2000-06-23 | 2002-04-23 | Nelson Industries, Inc. | Direct flow filter |
US6383244B1 (en) | 2000-10-20 | 2002-05-07 | Nelson Industries, Inc. | Filter with retained safety element |
US6391076B1 (en) | 1999-01-29 | 2002-05-21 | Nelson Industries, Inc. | Full flow filter |
US6416561B1 (en) | 2000-10-20 | 2002-07-09 | Nelson Industries, Inc. | Open flow filter with safety element |
US6447567B1 (en) | 2001-05-14 | 2002-09-10 | Baldwin Filters, Inc. | Air filter element with integral radial seal gasket |
US6482247B2 (en) | 2000-06-23 | 2002-11-19 | Nelson Industries, Inc. | Multi-panel fluid filter with equalized contaminant passages |
US6511599B2 (en) | 2000-12-18 | 2003-01-28 | Nelson Industries, Inc. | Multi-element cylindrical filter with equalized flow |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4610419A (en) * | 1985-09-10 | 1986-09-09 | Swanson Arthur P | Picture hanger |
-
2003
- 2003-05-02 US US10/428,459 patent/US6902598B2/en not_active Ceased
-
2004
- 2004-04-07 GB GB0407932A patent/GB2401805A/en not_active Withdrawn
- 2004-04-28 DE DE102004020970A patent/DE102004020970B4/en not_active Expired - Fee Related
-
2007
- 2007-06-07 US US11/759,884 patent/USRE41713E1/en not_active Expired - Lifetime
-
2009
- 2009-01-30 US US12/363,587 patent/USRE42174E1/en not_active Expired - Lifetime
Patent Citations (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2599604A (en) | 1949-07-13 | 1952-06-10 | Jordan V Bauer | Filter element |
FR1131647A (en) | 1954-09-24 | 1957-02-25 | Air filter with interchangeable paper element with large surface area | |
US2962121A (en) | 1958-03-26 | 1960-11-29 | Dollinger Corp | Filter |
US3147100A (en) | 1962-01-15 | 1964-09-01 | Dollinger Corp | Filter |
US3160488A (en) | 1962-01-26 | 1964-12-08 | Dollinger Corp | Filter |
US3334753A (en) | 1964-09-21 | 1967-08-08 | Rosaen Filter Co | Filter elements |
US4065341A (en) | 1972-11-21 | 1977-12-27 | Robert Bosch Gmbh | Method of making a liquid filter |
FR2261041A1 (en) | 1974-02-18 | 1975-09-12 | Cfea | |
GB1499922A (en) | 1974-02-18 | 1978-02-01 | Tecafiltres Sa | Filter cartridges |
DE3001674A1 (en) | 1980-01-18 | 1981-07-23 | Fichtel & Sachs Ag, 8720 Schweinfurt | Drinking water filter - with filter element including acidulating and biocidal substances |
US4310419A (en) | 1980-03-19 | 1982-01-12 | Nippon Soken, Inc. | Filter element for liquid straining filter |
GB2110110A (en) | 1981-10-09 | 1983-06-15 | Mann & Hummel Filter | Air filter |
US4589983A (en) | 1981-11-02 | 1986-05-20 | Donaldson Company, Inc. | Fluid filtering device |
US4559066A (en) | 1981-11-16 | 1985-12-17 | Process Scientific Innovations Limited | Filters for purification of gases |
US4634527A (en) | 1983-07-15 | 1987-01-06 | Marshall Dennis A G | Fluid filter element with annular sealing means |
DE3405719A1 (en) | 1984-02-17 | 1985-08-22 | Ing. Walter Hengst GmbH & Co KG, 4400 Münster | Rapidly changeable air filter |
US4609465A (en) | 1984-05-21 | 1986-09-02 | Pall Corporation | Filter cartridge with a connector seal |
US4720292A (en) * | 1986-07-14 | 1988-01-19 | Donaldson Company, Inc. | Cylindrical air filter with lightweight housing and radially directed seal |
US4720292B1 (en) * | 1986-07-14 | 1991-09-10 | Cylindrical air filter with lightweight housing and radially directed seal | |
US4720292B2 (en) * | 1986-07-14 | 1994-02-22 | Donaldson Company, Inc. | |
US4759783A (en) | 1987-06-25 | 1988-07-26 | Allied-Signal Inc. | Sealing arrangement for inlet air filter |
US5167683A (en) | 1990-08-06 | 1992-12-01 | Filterwerk Mann & Hummel Gmbh | Intake air filter for the internal combustion engine of a motor vehicle |
US5106397A (en) | 1990-12-26 | 1992-04-21 | Ford Motor Company | Air cleaner/noise silencer assembly |
US5871645A (en) | 1991-06-28 | 1999-02-16 | Pall Corporation | Filter arrangement including a non-perforated housing and an axially pleated filter pack |
US5275636A (en) | 1992-06-04 | 1994-01-04 | Vortox Company | Air cleaner for internal combustion engine |
US5730769A (en) | 1992-12-10 | 1998-03-24 | Filterwerk Mann & Hummel Gmbh | Air filter with scaling bead freely movable in the radial direction |
US5605625A (en) | 1993-02-24 | 1997-02-25 | Pall Corporation | Filter assembly |
US5562825A (en) | 1993-05-21 | 1996-10-08 | Nippondenso Co., Ltd. | Filter element having a flat and non-flat configuration |
US5487767A (en) | 1993-09-30 | 1996-01-30 | Dana Corporation | Radially sealed air filters |
US5431706A (en) | 1993-10-05 | 1995-07-11 | Dry Systems Technologies | Disposable particulate filter |
US5415677A (en) | 1993-12-28 | 1995-05-16 | Dana Corporation | Air filters including filters configured for both radial and axial sealing |
US5863313A (en) | 1994-01-21 | 1999-01-26 | Donaldson Company, Inc. | Cylindrical air filter with radially directed seal |
US6187240B1 (en) | 1994-01-21 | 2001-02-13 | Donaldson Company, Inc. | Method of assembling an air cleaner |
US5547480A (en) | 1994-01-21 | 1996-08-20 | Donaldson Company, Inc. | Cylindrical air filter with radially directed seal |
US5693109A (en) | 1994-01-21 | 1997-12-02 | Donaldson Company, Inc. | Cylindrical air filter with radially directed seal |
US5484466A (en) | 1994-02-14 | 1996-01-16 | Baldwin Filters, Inc. | Air filter element with radial seal sealing gasket |
US5725624A (en) | 1994-04-14 | 1998-03-10 | Filterwerk Mann & Hummel Gmbh | Air filter for the intake air of an internal-combustion engine |
US5885314A (en) | 1994-05-06 | 1999-03-23 | Bha Group Holdings, Inc. | Unitary filter cartridge |
US5755843A (en) | 1994-05-10 | 1998-05-26 | Ab Volvo | Air filter with reusable gable plate |
US5601626A (en) | 1994-08-04 | 1997-02-11 | Ngk Insulators, Ltd. | Support construction of filter element in dust collecting apparatus |
US5556440A (en) | 1994-10-20 | 1996-09-17 | Fleetguard, Inc. | Pressure-actuated radial air filter seal |
US5601717A (en) | 1994-11-09 | 1997-02-11 | Siebec S.A. | Filter media cartridge |
US5741421A (en) | 1994-11-23 | 1998-04-21 | Filterwerk Mann & Hummel Gmbh | Filter device |
US5632791A (en) | 1994-12-06 | 1997-05-27 | Bha Group, Inc. | Unitary filter cartridge |
US5954849A (en) | 1995-01-12 | 1999-09-21 | Donaldson Company, Inc. | Filter element |
US5803941A (en) | 1995-01-12 | 1998-09-08 | Donaldson Company, Inc. | Filter element |
US5669949A (en) | 1995-04-21 | 1997-09-23 | Donaldson Company, Inc. | Air filtration arrangement |
US5797973A (en) | 1995-04-21 | 1998-08-25 | Donaldson Company, Inc. | Air filtration arrangement and method |
US5814219A (en) | 1995-04-21 | 1998-09-29 | Donaldson Company, Inc. | Pleated filter having a planar sheet of randomly arranged filaments to maintain pleat spacing |
US5893937A (en) | 1995-05-26 | 1999-04-13 | Filterwerk Mann & Hummel Gmbh | Air filter especially for cleaning combustion air for internal combustion engines |
US5755842A (en) | 1995-07-05 | 1998-05-26 | Air-Maze Corporation | Air cleaner having removable end cap |
US5660608A (en) | 1995-10-12 | 1997-08-26 | Eco Corporation | Filter cartridge boot |
US5830941A (en) | 1995-10-31 | 1998-11-03 | Nippon Zeon Co., Ltd. | Vulcanizable rubber composition and hose |
US5685985A (en) | 1995-12-20 | 1997-11-11 | Baldwin Filters, Inc. | Environmentally friendly filter cartridge |
US5674393A (en) | 1996-08-13 | 1997-10-07 | Ralph Terhune | Oil filter |
US6152996A (en) | 1997-03-05 | 2000-11-28 | Air-Maze Corporation | Air cleaner element having incorporated sorption element |
US5800581A (en) | 1997-04-07 | 1998-09-01 | Air-Maze Corporation | Air cleaner having filter element integrally formed with housing end cap |
US6143049A (en) | 1997-06-27 | 2000-11-07 | Donaldson Company, Inc. | Aerosol separator; and method |
US6019804A (en) | 1997-11-25 | 2000-02-01 | S. C. Johnson & Son, Inc. | Compression-molded candle product |
US6149700A (en) | 1999-01-29 | 2000-11-21 | Nelson Industries, Inc. | Increased flow capacity filter |
US6261334B1 (en) | 1999-01-29 | 2001-07-17 | Nelson Industries, Inc. | High flow capacity filter |
US6306193B1 (en) | 1999-01-29 | 2001-10-23 | Nelson Industries, Inc. | Increased flow capacity filter |
US6391076B1 (en) | 1999-01-29 | 2002-05-21 | Nelson Industries, Inc. | Full flow filter |
US6398832B2 (en) | 1999-01-29 | 2002-06-04 | Nelson Industries, Inc. | High flow capacity filter |
US6179890B1 (en) | 1999-02-26 | 2001-01-30 | Donaldson Company, Inc. | Air cleaner having sealing arrangement between media arrangement and housing |
US6375700B1 (en) | 2000-06-23 | 2002-04-23 | Nelson Industries, Inc. | Direct flow filter |
US6482247B2 (en) | 2000-06-23 | 2002-11-19 | Nelson Industries, Inc. | Multi-panel fluid filter with equalized contaminant passages |
US6383244B1 (en) | 2000-10-20 | 2002-05-07 | Nelson Industries, Inc. | Filter with retained safety element |
US6416561B1 (en) | 2000-10-20 | 2002-07-09 | Nelson Industries, Inc. | Open flow filter with safety element |
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 |
Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11491423B2 (en) | 2004-04-13 | 2022-11-08 | Donaldson Company, Inc. | Filter cartridge for liquid filtration; assembly; and, methods |
US8453848B2 (en) | 2004-04-13 | 2013-06-04 | Donaldson Company, Inc. | Filter cartridge for liquid filtration; assembly; and, methods |
US10758847B2 (en) | 2004-04-13 | 2020-09-01 | Donaldson Company, Inc. | Filter cartridge for liquid filteration; assembly; and, methods |
US9180390B2 (en) | 2004-04-13 | 2015-11-10 | Donaldson Company, Inc. | Filter cartridge for liquid filtration; assembly; and, methods |
US9895632B2 (en) | 2004-04-13 | 2018-02-20 | Donaldson Company, Inc. | Filter cartridges for liquid filtration; assembly; and, methods |
US10653991B2 (en) | 2005-02-04 | 2020-05-19 | Donaldson Company, Inc. | Filter elements, air filter arrangements; and, methods |
US10279302B2 (en) | 2005-02-04 | 2019-05-07 | Donaldson Company, Inc. | Filter elements; air filter arrangements; and, methods |
US11117085B2 (en) | 2005-11-09 | 2021-09-14 | Donaldson Company, Inc. | Seal arrangement for filter element; filter element assembly; 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 |
US10837331B2 (en) | 2007-06-14 | 2020-11-17 | Donaldson Company, Inc. | Filter arrangements; components; and, methods |
US9752474B2 (en) | 2007-06-14 | 2017-09-05 | Donaldson Company, Inc. | Filter arrangements; components; and, methods |
US10786772B2 (en) | 2007-07-20 | 2020-09-29 | Donaldson Company, Inc. | Air cleaner arrangements; components; and, methods |
US10124285B2 (en) | 2007-07-20 | 2018-11-13 | 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 |
US8828114B2 (en) | 2010-09-16 | 2014-09-09 | Cummins Filtration Ip Inc. | Filter element with features to improve pre-cleaning performance, sealing, and structural support |
USRE48537E1 (en) | 2010-09-16 | 2021-04-27 | Cummins Filtration Ip Inc. | Filter element with features to improve pre-cleaning performance, sealing, and structural support |
US9498743B2 (en) | 2010-09-16 | 2016-11-22 | Cummins Filtration Ip Inc. | Filter element with features to improve pre-cleaning performance, sealing, and structural support |
US10576403B2 (en) | 2011-10-26 | 2020-03-03 | Donaldson Company, Inc. | Assemblies; components and filter features thereof; and, methods of use and assembly |
US11331609B2 (en) | 2011-10-26 | 2022-05-17 | Donaldson Company, Inc. | Assemblies; components and filter features thereof; and, methods of use and assembly |
US11839831B2 (en) | 2011-10-26 | 2023-12-12 | Donaldson Company, Inc | Filter assemblies; components and features thereof; and, methods of use and assembly |
US9387425B2 (en) | 2011-10-26 | 2016-07-12 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US9636615B2 (en) | 2011-10-26 | 2017-05-02 | Donaldson Company, Inc. | Assemblies; components and filter features thereof; and, methods of use and assembly |
US10835850B2 (en) | 2011-10-26 | 2020-11-17 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US8864866B2 (en) | 2011-10-26 | 2014-10-21 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US11890565B2 (en) | 2011-10-26 | 2024-02-06 | Donaldson Company, Inc. | Filter assemblies; components and features thereof; and, methods of use and assembly |
US9089804B2 (en) | 2012-11-19 | 2015-07-28 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and, methods |
US9919254B2 (en) | 2012-11-19 | 2018-03-20 | Donaldson Company, Inc. | Filter arrangements; components; assemblies; and, methods |
US10625191B2 (en) | 2012-11-29 | 2020-04-21 | Donaldson Company, Inc. | Filter cartridges; features and methods of assembly; filter assemblies; and, filter cartridge combinations |
US9067161B2 (en) | 2012-11-29 | 2015-06-30 | Donaldson Company, Inc. | Filter cartridges; features and methods of assembly; air cleaner assemblies; and, filter cartridge combinations |
US9889398B2 (en) | 2012-11-29 | 2018-02-13 | Donaldson Company, Inc. | Filter cartridges; features and methods of assembly; air cleaner assemblies; and, filter cartridge combinations |
US11192053B2 (en) | 2012-11-29 | 2021-12-07 | Donaldson Company, Inc. | Filter cartridges; features and methods of assembly; air cleaner assemblies; and, filter cartridge combinations |
US9925485B2 (en) | 2012-11-29 | 2018-03-27 | Donaldson Company, Inc. | Filter cartridge; features and methods of assembly; filter assemblies; and, filter cartridge combinations |
CN103861397B (en) * | 2012-12-17 | 2016-08-31 | 曼·胡默尔有限公司 | Air filtering system, air filter element and the method being used for changing air filter element |
CN103861397A (en) * | 2012-12-17 | 2014-06-18 | 曼·胡默尔有限公司 | Air filter system, air filter element and method for exchanging an air filter element |
US9254457B2 (en) * | 2012-12-17 | 2016-02-09 | Mann+Hummel Gmbh | Air filter system, air filter element and method for exchanging an air filter element |
US20140165834A1 (en) * | 2012-12-17 | 2014-06-19 | Mann+Hummel Gmbh | Air filter system, air filter element and method for exchanging an air filter element |
US10737208B2 (en) | 2013-06-06 | 2020-08-11 | Cummins Filtration Ip, Inc. | Air filter with improved performance or positioning |
US10118117B2 (en) | 2013-06-06 | 2018-11-06 | Cummins Filtration Ip, Inc. | Air filter with improved performance or positioning |
US11311829B2 (en) | 2016-02-12 | 2022-04-26 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
US11794139B2 (en) | 2016-02-12 | 2023-10-24 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
US11554338B2 (en) | 2016-12-01 | 2023-01-17 | Donaldson Company, Inc. | Filter elements, air cleaner assemblies, and methods of use and assembly |
US11504664B2 (en) | 2017-05-09 | 2022-11-22 | Donaldson Company, Inc. | Adapter and air filter cartridge being adapted for use with such an adapter |
US11857907B2 (en) | 2017-08-09 | 2024-01-02 | Donaldson Company, Inc. | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods |
US11420147B2 (en) | 2017-08-09 | 2022-08-23 | Donaldson Company, Inc. | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods |
US10758859B2 (en) | 2017-08-09 | 2020-09-01 | Donaldson Company, Inc. | Filter cartridges; air cleaner assemblies; housings; features; components; and, methods |
US11498022B2 (en) | 2017-12-08 | 2022-11-15 | Cummins Filtration Ip, Inc. | Oval seal with stabilization contour |
US11633683B2 (en) | 2018-01-12 | 2023-04-25 | Cummins Filtration Ip, Inc. | Easy to service air filter |
USD1000600S1 (en) | 2018-05-08 | 2023-10-03 | Cummins Filtration Ip, Inc. | Filter element |
USD930136S1 (en) | 2018-05-08 | 2021-09-07 | Cummins Filtration Ip, Inc. | Filter element |
US11452952B2 (en) | 2018-05-08 | 2022-09-27 | Cummins Filtration Ip, Inc. | Oval filter with exterior elliptical radial seal and internal support structure |
USD1002792S1 (en) | 2019-02-05 | 2023-10-24 | Donaldson Company, Inc. | Filter cartridge |
USD969289S1 (en) | 2020-03-05 | 2022-11-08 | Cummins Filtration Inc. | Filter element |
USD999895S1 (en) | 2020-03-05 | 2023-09-26 | Cummins Filtration Inc. | Filter element |
US11969686B2 (en) | 2022-10-10 | 2024-04-30 | Cummins Filtration Ip, Inc | Oval seal with stabilization contour |
US11969681B2 (en) | 2023-04-07 | 2024-04-30 | Cummins Filtration Ip, Inc. | Easy to service air filter |
Also Published As
Publication number | Publication date |
---|---|
USRE41713E1 (en) | 2010-09-21 |
DE102004020970A1 (en) | 2004-11-18 |
US20040216434A1 (en) | 2004-11-04 |
GB0407932D0 (en) | 2004-05-12 |
US6902598B2 (en) | 2005-06-07 |
GB2401805A (en) | 2004-11-24 |
DE102004020970B4 (en) | 2009-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
USRE42174E1 (en) | Filter with efficiently sealed end | |
US6306193B1 (en) | Increased flow capacity filter | |
US6261334B1 (en) | High flow capacity filter | |
US6391076B1 (en) | Full flow filter | |
US6416561B1 (en) | Open flow filter with safety element | |
US6511599B2 (en) | Multi-element cylindrical filter with equalized flow | |
US8540787B2 (en) | Filter element with percussion band | |
JP2009526648A (en) | Filter with drainage jacket, seal indicator / locking means, and seal baffle | |
US3828529A (en) | Apparatus for filtering oil vapors |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CUMMINS FILTRATION INC., TENNESSEE Free format text: CERTIFICATE OF AMENDMENT;ASSIGNOR:FLEETGUARD, INC.;REEL/FRAME:022294/0574 Effective date: 20060524 |
|
AS | Assignment |
Owner name: CUMMINS FILTRATION IP, INC., MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CUMMINS FILTRATION INC.;REEL/FRAME:022326/0079 Effective date: 20090218 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |