CA1186634A - Liquid filter having self-retaining filtering bags - Google Patents
Liquid filter having self-retaining filtering bagsInfo
- Publication number
- CA1186634A CA1186634A CA000405705A CA405705A CA1186634A CA 1186634 A CA1186634 A CA 1186634A CA 000405705 A CA000405705 A CA 000405705A CA 405705 A CA405705 A CA 405705A CA 1186634 A CA1186634 A CA 1186634A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- channel
- filter
- opening
- lip
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 12
- 238000001914 filtration Methods 0.000 title abstract description 9
- 239000012530 fluid Substances 0.000 claims description 2
- 230000006854 communication Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 230000000295 complement effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000284 resting effect Effects 0.000 description 2
- 241001111950 Sonora Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- B01D29/23—Supported filter elements arranged for outward flow filtration
-
- 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
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- 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
- B01D29/902—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 containing fixed liquid displacement elements or cores
Abstract
A LIQUID FILTER HAVING SELF-RETAINING
FILTERING BAGS
Abstract of the Disclosure An improvement in the construction of liquid filters having replaceable filtering bags in which each bag is formed to snap fit into a groove formed within the upper portion of the filter housing.
FILTERING BAGS
Abstract of the Disclosure An improvement in the construction of liquid filters having replaceable filtering bags in which each bag is formed to snap fit into a groove formed within the upper portion of the filter housing.
Description
63~
A LIQUID FILTER king SE'~F--RETAINING
FETTERING BAGS
Sonora of the Invention This inYen~ion relates to a further improvement in the construction of liquid filters Usual replaceable self-retain-in filter elements.
Al Filter elements, such as bags, are normally seated in ¦ openings into the interior of the filter housing located within the liquid flow path through the filter. The bag is held in place by various methods, such as an overlying plate or cover us shown in U. S, Patents 3,503,516, 4,022,693;
and 4,259,188; or by a bag and housing engagement as shown in U. S. Patents 4,133,769 and 4,204,966.
he invention described herein calls for the formation of an upwardly angled V-shaped channel about the bag-receiving opening in the filter housing. The bag itself includes an I:` annulax-shaped retaining ring part which defines the opening into the Buick This ring part has a flexible down-turn lip which, when the bag is fitted into a housing bag receiving opening, interlocks with the channel about the housing opening to secure the hag in place within the housing. My cover, extra plate or other filter component is necessary to secure the filtering bags.
This means of securing; the filtering bags in place within the filter is expedient and efficient. It, also, normally allows the filter to be morn economically constructed than those jilters which use the cover to retain the bags. queue seal formed between the hag lip and housing opening channel is secure, thereby making it unnecessary to provide a separate seal between the housing end any supporting busiest used with the jag.
I
Accordingly, it is an object of this invention to provide a liquid filter it which the filtering back is secured within the filter housing by a precise snap-fit enc3agement.
Another object ox this invention is to provide a filter of efficient and economical construction.
Other objects of this invention will become apparent upon a reading of the description set forth below.
Brie ~escription~of the Drawings Fig, 1 is a perspective view of a jilter assembly.
Fig. 2 is a top view of the filter housing with the cover removed for purposes of illustration.
Ego. 3 it a sectional view taken along laureate 3-3 owe Fig. 2.
Fig. 4 is an enlarged view owe that portion ox Fig. 3 within broken line 4.
Fig. S is a sectional view of another embodiment of this ix.tvention.
Description of the Prowar embodiments In Figs. 1-4, a multiple element filter assembly 10 is shown. AssenLbly 10 includes a housing 11 end a cover 16.
HousincJ 11 has a sip wall 12, a bottom wall 13, an upper wall 14, an inlet port 18, and an outlet port 20. Upper wall 14 has a plurality of openings 22 located in it.
Each opening 22 is defined by a marginal section havlrlg an upper channel part 24 and a lower shoulder part I Upper wall 14 also includes a central liquid inlet opening 28 to provide for fluid commt~ication between inlet port 18 ctnd openings 22. Each upper wall opening channel part 24 is of an irregular Shape having a horizontal base 25 end an , 30 upwardly and inwardly tapered snide 7.7.
~L8~63~
A filtering bag 30 it i~se~kecl into each opening 22 and is supported therein by a rigid basket 32. jag 30 includes flexibly, normally cloth like likelihood previous Jack part 31 clod a shape-retallllng liquid impervious ring park 36 which terminates in an annular flexible but shape-retaining lip 38.
Basket 32, except for upper flange 33, is constructed of a previous material such as screen and serves to support bag 30 at its sack part 31.
A basket 32 is fitted into each housing opening 22 with .10 its flange 33 resting upon shoulder part 26 of the opening A bag 30 is then inserted into each basket 32 with its ring part lip 38 being flexed or snap-fitted into the opening channel part 24, us seen in FicJ. 4. The fit of lip 38 in its receiving channel part 24 is complemental with the end edge 39 of the lip resting upon hose 25 and the outer side wall of the lip being biased by the lip flexor against Jo side I of the channel part to provide a sure liquid seal between the lip and channel part independently of cover 16.
In some forms of the filter, baskets 32 may not be needed with only filtering bags 30 being used.
A second embodiment of this invention is shown in Fig. 5 as being incorporated into a single element filter 50. Filter 50 includes a housing 52 and a cover 59, and has an inlet 56 and an outlet 58. A rigid basket 32 is supported by housing 52 and a filtering bag 30 fits within the basket The flexible shape-retaining lip 38 of bag 30 is snap-fitted into housing channel park 24 a described in the filter assembly 10 of Figs. 1-4 independently of cover 59.
It it to be understood that the invention its not to ye limited to the preceding description, hut may be amended within the scope of the appended claims I
SUPPLEMENTARY DISCLS)5URE
Figure PA is an enlarged view, similar to figure 4, but showing the filter bag held in an alternative manner.
Like reference numerals relate to like elements in figures 4 and PA and it may be seen that in the latter, the lip 38 is not entirely complemental with the annular channel 24, the lip abutting the side of the channel only at the neck of the channel aye and only the corner aye of the lip edge 39 abutting the base 25 of the channel. The contact between the lip and the upper wall 14 by means of the contact between the lip and the channel side and base in the manner of figure PA
still provides a sure liquid seal which is independent of cover 16.
., ,
A LIQUID FILTER king SE'~F--RETAINING
FETTERING BAGS
Sonora of the Invention This inYen~ion relates to a further improvement in the construction of liquid filters Usual replaceable self-retain-in filter elements.
Al Filter elements, such as bags, are normally seated in ¦ openings into the interior of the filter housing located within the liquid flow path through the filter. The bag is held in place by various methods, such as an overlying plate or cover us shown in U. S, Patents 3,503,516, 4,022,693;
and 4,259,188; or by a bag and housing engagement as shown in U. S. Patents 4,133,769 and 4,204,966.
he invention described herein calls for the formation of an upwardly angled V-shaped channel about the bag-receiving opening in the filter housing. The bag itself includes an I:` annulax-shaped retaining ring part which defines the opening into the Buick This ring part has a flexible down-turn lip which, when the bag is fitted into a housing bag receiving opening, interlocks with the channel about the housing opening to secure the hag in place within the housing. My cover, extra plate or other filter component is necessary to secure the filtering bags.
This means of securing; the filtering bags in place within the filter is expedient and efficient. It, also, normally allows the filter to be morn economically constructed than those jilters which use the cover to retain the bags. queue seal formed between the hag lip and housing opening channel is secure, thereby making it unnecessary to provide a separate seal between the housing end any supporting busiest used with the jag.
I
Accordingly, it is an object of this invention to provide a liquid filter it which the filtering back is secured within the filter housing by a precise snap-fit enc3agement.
Another object ox this invention is to provide a filter of efficient and economical construction.
Other objects of this invention will become apparent upon a reading of the description set forth below.
Brie ~escription~of the Drawings Fig, 1 is a perspective view of a jilter assembly.
Fig. 2 is a top view of the filter housing with the cover removed for purposes of illustration.
Ego. 3 it a sectional view taken along laureate 3-3 owe Fig. 2.
Fig. 4 is an enlarged view owe that portion ox Fig. 3 within broken line 4.
Fig. S is a sectional view of another embodiment of this ix.tvention.
Description of the Prowar embodiments In Figs. 1-4, a multiple element filter assembly 10 is shown. AssenLbly 10 includes a housing 11 end a cover 16.
HousincJ 11 has a sip wall 12, a bottom wall 13, an upper wall 14, an inlet port 18, and an outlet port 20. Upper wall 14 has a plurality of openings 22 located in it.
Each opening 22 is defined by a marginal section havlrlg an upper channel part 24 and a lower shoulder part I Upper wall 14 also includes a central liquid inlet opening 28 to provide for fluid commt~ication between inlet port 18 ctnd openings 22. Each upper wall opening channel part 24 is of an irregular Shape having a horizontal base 25 end an , 30 upwardly and inwardly tapered snide 7.7.
~L8~63~
A filtering bag 30 it i~se~kecl into each opening 22 and is supported therein by a rigid basket 32. jag 30 includes flexibly, normally cloth like likelihood previous Jack part 31 clod a shape-retallllng liquid impervious ring park 36 which terminates in an annular flexible but shape-retaining lip 38.
Basket 32, except for upper flange 33, is constructed of a previous material such as screen and serves to support bag 30 at its sack part 31.
A basket 32 is fitted into each housing opening 22 with .10 its flange 33 resting upon shoulder part 26 of the opening A bag 30 is then inserted into each basket 32 with its ring part lip 38 being flexed or snap-fitted into the opening channel part 24, us seen in FicJ. 4. The fit of lip 38 in its receiving channel part 24 is complemental with the end edge 39 of the lip resting upon hose 25 and the outer side wall of the lip being biased by the lip flexor against Jo side I of the channel part to provide a sure liquid seal between the lip and channel part independently of cover 16.
In some forms of the filter, baskets 32 may not be needed with only filtering bags 30 being used.
A second embodiment of this invention is shown in Fig. 5 as being incorporated into a single element filter 50. Filter 50 includes a housing 52 and a cover 59, and has an inlet 56 and an outlet 58. A rigid basket 32 is supported by housing 52 and a filtering bag 30 fits within the basket The flexible shape-retaining lip 38 of bag 30 is snap-fitted into housing channel park 24 a described in the filter assembly 10 of Figs. 1-4 independently of cover 59.
It it to be understood that the invention its not to ye limited to the preceding description, hut may be amended within the scope of the appended claims I
SUPPLEMENTARY DISCLS)5URE
Figure PA is an enlarged view, similar to figure 4, but showing the filter bag held in an alternative manner.
Like reference numerals relate to like elements in figures 4 and PA and it may be seen that in the latter, the lip 38 is not entirely complemental with the annular channel 24, the lip abutting the side of the channel only at the neck of the channel aye and only the corner aye of the lip edge 39 abutting the base 25 of the channel. The contact between the lip and the upper wall 14 by means of the contact between the lip and the channel side and base in the manner of figure PA
still provides a sure liquid seal which is independent of cover 16.
., ,
Claims (5)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a liquid filter including a housing having an upper part defining at least one opening into the interior of said housing, a removable cover spanning said housing opening, inlet and outlet ports providing fluid communica-tion with said housing interior through said housing opening, a filter bag having a reticulated sack part, said ring part including a flexible down-turned lip having an angled side-wall and terminating in an end edge, said housing upper part including a channel circumscribing said defined housing opening, the improvement wherein said channel includes a base paralleling the plane of said housing opening and a side tapering upwardly and inwardly relative to the opening, said bag sack part extending through said housing opening and said bag ring part lip seated in said channel with the side wall of said lip being urged against the side of said channel and the end edge of said lip contacting the base of said channel to secure and seal said bag to said housing at said housing upper part.
2. The filter of Claim 1, wherein said housing upper part is a top wall having a plurality of openings therein, a said channel formed in s a i d top wall circumscribing each said opening, a said bag fitted into each opening with said lip thereof so seated in said circumscribing channel.
3. The filter of Claim 2 and a rigid reticulated basket fitted into each said opening and supported by said top wall at the upper margin of the basket, each bag sack part fitting into a said basket with said attached lip overlying the upper margin of the basket.
4. The filter of claim 1, wherein said bag ring lip part, when installed in said filter, conforms to and is complementary with the side and base profiles of said channel.
CLAIMS SUPPORTED BY SUPPLEMENTARY DISCLOSURE
CLAIMS SUPPORTED BY SUPPLEMENTARY DISCLOSURE
5. The filter of claim 1, wherein said bag ring lip part, when installed in said filter, contacts the side and base of said channel in annular contact regions which do not extend over the entirety of said channel side and base surfaces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31196281A | 1981-10-16 | 1981-10-16 | |
| US311,962 | 1981-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1186634A true CA1186634A (en) | 1985-05-07 |
Family
ID=23209248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000405705A Expired CA1186634A (en) | 1981-10-16 | 1982-06-22 | Liquid filter having self-retaining filtering bags |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5867310A (en) |
| CA (1) | CA1186634A (en) |
| DE (1) | DE3225442A1 (en) |
| FR (1) | FR2514658B1 (en) |
| GB (1) | GB2107600B (en) |
| NL (1) | NL189337C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02150009U (en) * | 1989-05-24 | 1990-12-25 | ||
| DE4025003A1 (en) * | 1990-08-07 | 1992-02-13 | Schlafhorst & Co W | COP PREPARATION DEVICE WITH VERTICAL POSITION-CHANGEABLE MEANS CONTROLLED BY SENSOR SIGNALS FOR SUCTIONING THE START OF THE THREAD FROM THE TAPERED WINDING SURFACE OF COPS |
| US7857144B1 (en) * | 2004-07-20 | 2010-12-28 | Filter Specialists, Inc. | Liquid filter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503516A (en) * | 1968-09-05 | 1970-03-31 | Henry Mfg Co Inc | Pressure filter and tubular filter elements therefor |
| US4022693A (en) * | 1975-02-24 | 1977-05-10 | Filter Specialists, Inc. | Liquid filter having multiple filtering elements |
| US4133769A (en) * | 1977-11-25 | 1979-01-09 | Filter Specialists, Inc. | Liquid filter having self-retaining filter bag |
| US4259188A (en) * | 1979-05-29 | 1981-03-31 | Filter Specialists, Inc. | Fluid filter housing and filter bag seal |
| US4285814A (en) * | 1979-12-31 | 1981-08-25 | Filter Specialists, Inc. | Filter bag clamp assembly |
-
1982
- 1982-06-22 CA CA000405705A patent/CA1186634A/en not_active Expired
- 1982-07-06 JP JP57118298A patent/JPS5867310A/en active Granted
- 1982-07-07 DE DE19823225442 patent/DE3225442A1/en active Granted
- 1982-08-03 GB GB08222340A patent/GB2107600B/en not_active Expired
- 1982-09-01 FR FR8214952A patent/FR2514658B1/en not_active Expired
- 1982-09-17 NL NLAANVRAGE8203598,A patent/NL189337C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0148044B2 (en) | 1989-10-17 |
| GB2107600A (en) | 1983-05-05 |
| FR2514658B1 (en) | 1987-01-30 |
| NL189337B (en) | 1992-10-16 |
| JPS5867310A (en) | 1983-04-21 |
| GB2107600B (en) | 1985-04-24 |
| FR2514658A1 (en) | 1983-04-22 |
| DE3225442C2 (en) | 1989-12-07 |
| NL189337C (en) | 1993-03-16 |
| DE3225442A1 (en) | 1983-05-05 |
| NL8203598A (en) | 1983-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |