CA1176993A - Filtering and collecting device for water drains - Google Patents
Filtering and collecting device for water drainsInfo
- Publication number
- CA1176993A CA1176993A CA000390061A CA390061A CA1176993A CA 1176993 A CA1176993 A CA 1176993A CA 000390061 A CA000390061 A CA 000390061A CA 390061 A CA390061 A CA 390061A CA 1176993 A CA1176993 A CA 1176993A
- Authority
- CA
- Canada
- Prior art keywords
- grating
- holder ring
- filtering
- drain
- bag
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
- E03C1/262—Object-catching inserts or similar devices for waste pipes or outlets combined with outlet stoppers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
Abstract
A B S T R A C T
A device for use in water drains provided with an outer drain grating for preventing accidents and coarse material falling into the drain. The device is intended for separating and collecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities passing through the grating. To this end, the device includes a holder ring intended to be mounted under the drain grating, and carrying the combination of a coarse-filtering and protecting means and a fine-filtering means.
The coarse-filtering and protecting means is cup-shaped and arranged in the holder ring, while the fine-filtering means comprises a filter bag of a flexible and water-permeable cloth or fabric material arranged around the holder ring. The holder ring is preferably funnel-shaped and provided with a mounting flange arranged to be firmly clamped beneath the drain grating, and the coarse-filtering and protecting means comprises preferably a wire basket.
A device for use in water drains provided with an outer drain grating for preventing accidents and coarse material falling into the drain. The device is intended for separating and collecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities passing through the grating. To this end, the device includes a holder ring intended to be mounted under the drain grating, and carrying the combination of a coarse-filtering and protecting means and a fine-filtering means.
The coarse-filtering and protecting means is cup-shaped and arranged in the holder ring, while the fine-filtering means comprises a filter bag of a flexible and water-permeable cloth or fabric material arranged around the holder ring. The holder ring is preferably funnel-shaped and provided with a mounting flange arranged to be firmly clamped beneath the drain grating, and the coarse-filtering and protecting means comprises preferably a wire basket.
Description
A filtering and collecting device for water drains The present invention relates to water drains of the kind provided with an outer drain grating whieh acts as a drain cover to prevent aecidents and as a means for preven-ting coarse material from passing down into the drain, andmore particularly to a device for use in such drains to separate and collect particulate impurities, such as sand, wooden pegs and leaves, and also liquid impurities, such as oil, passing through the grating.
A large number of devices for collecting particulate material falling down into water drains are known to the art.
These devices normally comprise a specially designed gratinc su~port combined with a collecting vessel, often provided with a waterseal or drain trap. Such devices, however, normally require the drains to be adapted to the system in question from the very beginnincJ. Consequently, it is difficult to provide existing systems with collecting and separating deviees without ineurring signifieant eosts. A further dis-advantage with known filtering and eollecting devices of the aforementioned kind is that they eannot readily be used in drains where the grating is offset relative to the lower part of the drain. ~loreover, the eapacity and/or efficieney of such devices is, or are, a-t times sadly lacking, the former defficiency resulting in flooding and the latter defficieney enabling contaminants to enter the drains, which contaminants must be flushed away or sucked out at given intervals of time. Neither are the known devices effective in separating oil or other liquid impurities from the drain water passing through the grating. In addition, these known devices are difficult to empty, and the work of emptying the devices is unhygienic. The purchase price of the known devices is often relatively high, as is also the cost incurred when changing the collecting vessels.
1~76993 The main object of the present invention is to provide a simple and effective separating and collecting device which can be manufactured and mounted in position at low costs and used in drains of widely varying design, thereby s eliminating the aforementioned disadvantages. In addition to filtering out particulate material, the device shall also be capable of filtering out oil and other liquid impurities to a certain extent.
According to the invention there is provided a device for use in water drains provided with an outer drain grat-ing intended to prevent accidents and to prevent coarse material falling into the drain, for separating and col-lecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities pass-ing through the grating, the device comprising a holder ring intended to be mounted beneath the drain grating, and carrying a combination of an integrated coarse-filtering and protecting means and a fine-filtering means; the coarse-filtering and protecting means comprising a rela-2Q tively shallow, cup-shaped basket arranged within the holder ring; the fine-filtering means comprising a filter bag made of a flexible and water-permeable cloth or fabric material and which bag is arranged around said holder ring;
the flexible bag extending below the holder ring to permit the bag to adapt to the lower part of the drain even if the grating is offset relative to the lower part of the drain.
Such a filtering and collecting device is of extremely simple construction, it is also cheap to manufacture and can readily be stored and mounted in position, in addition to which the use of a flexible bag enables the device to be installed in different kinds of known drainage systems, irrespective of whether the grating is centred relative to the remainder of the drain or not. The use of a filtering fabric material also enables the device to be used for separating oil and other viscous liquid impurities from 39 the drainage water.
A
.
.
`-- 1176993 2a Since the impurities are separated in two stages when using a device constructed in accordance with the invention, said two stages being additional to the separ-ation of coaese particulate material by the drain grating, it is possible to combine effective separation and collec-tion with an effective through flow of the drainage water.
Coarse particles, such as gravel, leaves and the like, are captured in the first separating stage and consequently do not impair A
'7~993 the permeability of the relatively fine-mesh filtering bag, which~ as beforementioned - can be adapted to permit oil and other liquid impurities to be filtered off. ror example, if leaves were permitted to freely enter the bag, the bag would rapidly become blocked. Consequently, it is important when using a filtering bag, the use of which is to great advantage per se, to combine the bag with an effektive pre-separating means, which shall also be capable of protecting the bag so as to prevent the same, for example, from being torn by wooden pegs or other sharp contaminants which could otherwise enter the bag.
According to one preferred embodiment of the invention, the holder rinc; is funnel-shaped and provided with a mounting flange arranged to be clamped firmly under the drain gratincJ, and the filtering bag is suspended from the outer surface of the holder ring. In this embodiment the menas for filtering coarse material and for protecting the bag has the form of a wire basket so constructed as to form a c~ap between said rneans and the surrounding holder rinc~. This enables maximum use of the volumetric capacity of the basket. The height or thickness of the holder ring should be less than half the height of a grating-support means carrying said drain grating, to enable the device according to the invention to be readily Mounted also in drains in which said grating-support means is not centred.
In a preferred embodiment of the filtering bag, the bag is openable at its lower end, thereby enabling the bag to be readily emptied in a hygienic manner, and also enabling the bag volume to be adapted to existing requirements. Further, the filtering bag is suitably provided adjacent its upper end with overflow openings, to provide increased flow possibilities when so required, for example in the case of heavy downpours.
Exernplary embodiments ot the invention will now be described in more detail with reference to the accompanying drawings, in which Figure l illustrates schernatically -the components forming a device according to the invention~
;9~3 Figure 2 illustrates a device according to the invention mounted in a water drain; and Fiyure 3 is a partly cut-away prespective view of a modified embodiment of a device according to the invention.
The device illustrated in Fisure l includes a funnel-shaped holder ring l, which serves firstly to hold the coarse-filtering means, said means havin~ the form of a wire basket 2 which can be inserted in the holder ring, and secondly to hold the fine-filtering means, which has the form of a filtering bag 3 made of a flexible fabric or cloth naterial and capable of being mounted on the outer surface of the ring l. As beforementioned, the wire basket 2 is in-tended to be inserted into the holder ring l, whereat a flange 4 on the basket 2 co-acts with the inner converging surface of the holder ring l and firmly clamps the basket while leaving an anular gap between said basket and the inner surface of the ring l. This gap enables the permeability of the basket to be retained until it is completely filled with material. The holder ring l is provided with a transverse handle 5, which also serves to prevent the wire basket from being pressed down into the drain.
For mounting purpose the holder ring is provided with a mounting flange 6, which is intended to be firmly pressed against the grating-support means beneath the external drain grating. The holder ring is provided on its outer surface with mounting means 7, on which the bag 3 can be mounted, said bag also being funnel-shaped. Thus, the holder ring can extend as a funnel down into the filtering bag 3. The sus-pension means 7 may, for example, have the form of hooks or through-passing holes for receiving attachment means, said attachment means being passed through holes 8 arranged around the upper end of the bag 3.
The filter bag 3 is suitably made of a water-permeable, relatively fine-mesh filter cloth of glass or plastics fibre, for example a polyester fabric. The sack is made in the form of a truncated cone which is open at both ends thereof, and 69~3 is provided at its lower, narrow end with tapes 9 or the like by which said end can be closed. Arranged at the upper end of the bag is a number of slot-like overflow openings 10, which increase the through-flow capacity of the bag when required, for example in the case of heavy downpours.
The tapes 9 also enable the volumetric capacity of the bag to be adjusted in dependence upon existiny requirements, and also enable the bag to be emptied in a hy~ienic fashion without requiring the bag to be turned upside down. In this regard, the bag is simply lifted by the handle 5 and the tapes 9 loosened, whereupon thecontents of the bag will fall into a container intended therefore.
As beforementioned, the combination of wire b~sket and filter bag is greatly advantagous, since in this way it is possible to combine effective separation of contaminating materials, including liquid impurities such as oil and the like, with an effective through-flow of the drainaye water.
The wire basket 2, however, does not only serve as a coarse-filtering means, but also to protect the bag from intentional or unintentional damage,e.a.bymeans of sticks inserted into the drain through the grating.
Figure 2 illustrates schematically the manner in which the device according to the invention is mounted in a water drain. The reference 11 inditifies the grating-support means which carries a drain yratiny 12, under which the mountiny flange 6 of the holder ring 1 is firmly pressed. In the illustrated embodiment, the grating-support means 11 rests on a number of adjustment rings 14 and is not centred relative to the lower part 13 oi- the drain. Such lateral displacement of the grating-support means is quite common, for example in drains located in street gutters, and can in practice be much greater than that illustrated in ~e drawing. ~ith drains of this kind it is necessary for the collecting means to have the form of a flexible bag, since otherwise a means of special design must be manufactured. To enable a device according to the invention to be installed in drains irrespective of the li769~?3 maynitude by which the grating-support means is displaced relative to the bottom portion of the drain, the height or thickness of the holder ring 1 shall be smaller than the height or depth of the grating-support means 11, and preferably S not more than about half the height or depth of said grating-support means.
Figure 3 illustrates a device according to the invention for use in a drain in which the grating is accomodated in a rectangular opening. The device, however, has the same design as the device illustrated in Figures 1 and 2, and hence no additional description of this embodiment is required. The references used in Figure 3 identify the same elements as the references previously used.
The device according to the invention thus comprises lS only three parts, which can be manufactured at low costs.
By using a flexible bag, the devices requires the minimum of space for storing and transporting the same. That part of the device which is subjected to the most wear is the bag, which can be replaced with a new bag at relatively low cost when necessary. The use of a bag according to the invention also prevents water from collecting, such water collections being prone to freeze in cold weather and generating unpleasant odours in dry periods. By providing the bag and the holder ring with uniformly spaced attachement means, the bag can be mounted in any position of rotation whatsoever. A bag also provides a very large filtering area, which can be adjusted as required.
A device according to the invention can be modified in several respects within the scope of the Claims. Thus, its geometric shape can be adjusted to the drain in which it is to be mounted. The coarse-filtering means may, in addition to a wire basket, also comprise another cup-shaped container having good perrneability. An essential feature of the device according to the invention, however, is that it comprises two separating stages, of which the last stage includes a flexible cloth or fabric material to provide a 11'7~3 fine filtering effect, while the first stage serves to separate coarse material from the drainage water and to protect the bag.
A large number of devices for collecting particulate material falling down into water drains are known to the art.
These devices normally comprise a specially designed gratinc su~port combined with a collecting vessel, often provided with a waterseal or drain trap. Such devices, however, normally require the drains to be adapted to the system in question from the very beginnincJ. Consequently, it is difficult to provide existing systems with collecting and separating deviees without ineurring signifieant eosts. A further dis-advantage with known filtering and eollecting devices of the aforementioned kind is that they eannot readily be used in drains where the grating is offset relative to the lower part of the drain. ~loreover, the eapacity and/or efficieney of such devices is, or are, a-t times sadly lacking, the former defficiency resulting in flooding and the latter defficieney enabling contaminants to enter the drains, which contaminants must be flushed away or sucked out at given intervals of time. Neither are the known devices effective in separating oil or other liquid impurities from the drain water passing through the grating. In addition, these known devices are difficult to empty, and the work of emptying the devices is unhygienic. The purchase price of the known devices is often relatively high, as is also the cost incurred when changing the collecting vessels.
1~76993 The main object of the present invention is to provide a simple and effective separating and collecting device which can be manufactured and mounted in position at low costs and used in drains of widely varying design, thereby s eliminating the aforementioned disadvantages. In addition to filtering out particulate material, the device shall also be capable of filtering out oil and other liquid impurities to a certain extent.
According to the invention there is provided a device for use in water drains provided with an outer drain grat-ing intended to prevent accidents and to prevent coarse material falling into the drain, for separating and col-lecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities pass-ing through the grating, the device comprising a holder ring intended to be mounted beneath the drain grating, and carrying a combination of an integrated coarse-filtering and protecting means and a fine-filtering means; the coarse-filtering and protecting means comprising a rela-2Q tively shallow, cup-shaped basket arranged within the holder ring; the fine-filtering means comprising a filter bag made of a flexible and water-permeable cloth or fabric material and which bag is arranged around said holder ring;
the flexible bag extending below the holder ring to permit the bag to adapt to the lower part of the drain even if the grating is offset relative to the lower part of the drain.
Such a filtering and collecting device is of extremely simple construction, it is also cheap to manufacture and can readily be stored and mounted in position, in addition to which the use of a flexible bag enables the device to be installed in different kinds of known drainage systems, irrespective of whether the grating is centred relative to the remainder of the drain or not. The use of a filtering fabric material also enables the device to be used for separating oil and other viscous liquid impurities from 39 the drainage water.
A
.
.
`-- 1176993 2a Since the impurities are separated in two stages when using a device constructed in accordance with the invention, said two stages being additional to the separ-ation of coaese particulate material by the drain grating, it is possible to combine effective separation and collec-tion with an effective through flow of the drainage water.
Coarse particles, such as gravel, leaves and the like, are captured in the first separating stage and consequently do not impair A
'7~993 the permeability of the relatively fine-mesh filtering bag, which~ as beforementioned - can be adapted to permit oil and other liquid impurities to be filtered off. ror example, if leaves were permitted to freely enter the bag, the bag would rapidly become blocked. Consequently, it is important when using a filtering bag, the use of which is to great advantage per se, to combine the bag with an effektive pre-separating means, which shall also be capable of protecting the bag so as to prevent the same, for example, from being torn by wooden pegs or other sharp contaminants which could otherwise enter the bag.
According to one preferred embodiment of the invention, the holder rinc; is funnel-shaped and provided with a mounting flange arranged to be clamped firmly under the drain gratincJ, and the filtering bag is suspended from the outer surface of the holder ring. In this embodiment the menas for filtering coarse material and for protecting the bag has the form of a wire basket so constructed as to form a c~ap between said rneans and the surrounding holder rinc~. This enables maximum use of the volumetric capacity of the basket. The height or thickness of the holder ring should be less than half the height of a grating-support means carrying said drain grating, to enable the device according to the invention to be readily Mounted also in drains in which said grating-support means is not centred.
In a preferred embodiment of the filtering bag, the bag is openable at its lower end, thereby enabling the bag to be readily emptied in a hygienic manner, and also enabling the bag volume to be adapted to existing requirements. Further, the filtering bag is suitably provided adjacent its upper end with overflow openings, to provide increased flow possibilities when so required, for example in the case of heavy downpours.
Exernplary embodiments ot the invention will now be described in more detail with reference to the accompanying drawings, in which Figure l illustrates schernatically -the components forming a device according to the invention~
;9~3 Figure 2 illustrates a device according to the invention mounted in a water drain; and Fiyure 3 is a partly cut-away prespective view of a modified embodiment of a device according to the invention.
The device illustrated in Fisure l includes a funnel-shaped holder ring l, which serves firstly to hold the coarse-filtering means, said means havin~ the form of a wire basket 2 which can be inserted in the holder ring, and secondly to hold the fine-filtering means, which has the form of a filtering bag 3 made of a flexible fabric or cloth naterial and capable of being mounted on the outer surface of the ring l. As beforementioned, the wire basket 2 is in-tended to be inserted into the holder ring l, whereat a flange 4 on the basket 2 co-acts with the inner converging surface of the holder ring l and firmly clamps the basket while leaving an anular gap between said basket and the inner surface of the ring l. This gap enables the permeability of the basket to be retained until it is completely filled with material. The holder ring l is provided with a transverse handle 5, which also serves to prevent the wire basket from being pressed down into the drain.
For mounting purpose the holder ring is provided with a mounting flange 6, which is intended to be firmly pressed against the grating-support means beneath the external drain grating. The holder ring is provided on its outer surface with mounting means 7, on which the bag 3 can be mounted, said bag also being funnel-shaped. Thus, the holder ring can extend as a funnel down into the filtering bag 3. The sus-pension means 7 may, for example, have the form of hooks or through-passing holes for receiving attachment means, said attachment means being passed through holes 8 arranged around the upper end of the bag 3.
The filter bag 3 is suitably made of a water-permeable, relatively fine-mesh filter cloth of glass or plastics fibre, for example a polyester fabric. The sack is made in the form of a truncated cone which is open at both ends thereof, and 69~3 is provided at its lower, narrow end with tapes 9 or the like by which said end can be closed. Arranged at the upper end of the bag is a number of slot-like overflow openings 10, which increase the through-flow capacity of the bag when required, for example in the case of heavy downpours.
The tapes 9 also enable the volumetric capacity of the bag to be adjusted in dependence upon existiny requirements, and also enable the bag to be emptied in a hy~ienic fashion without requiring the bag to be turned upside down. In this regard, the bag is simply lifted by the handle 5 and the tapes 9 loosened, whereupon thecontents of the bag will fall into a container intended therefore.
As beforementioned, the combination of wire b~sket and filter bag is greatly advantagous, since in this way it is possible to combine effective separation of contaminating materials, including liquid impurities such as oil and the like, with an effective through-flow of the drainaye water.
The wire basket 2, however, does not only serve as a coarse-filtering means, but also to protect the bag from intentional or unintentional damage,e.a.bymeans of sticks inserted into the drain through the grating.
Figure 2 illustrates schematically the manner in which the device according to the invention is mounted in a water drain. The reference 11 inditifies the grating-support means which carries a drain yratiny 12, under which the mountiny flange 6 of the holder ring 1 is firmly pressed. In the illustrated embodiment, the grating-support means 11 rests on a number of adjustment rings 14 and is not centred relative to the lower part 13 oi- the drain. Such lateral displacement of the grating-support means is quite common, for example in drains located in street gutters, and can in practice be much greater than that illustrated in ~e drawing. ~ith drains of this kind it is necessary for the collecting means to have the form of a flexible bag, since otherwise a means of special design must be manufactured. To enable a device according to the invention to be installed in drains irrespective of the li769~?3 maynitude by which the grating-support means is displaced relative to the bottom portion of the drain, the height or thickness of the holder ring 1 shall be smaller than the height or depth of the grating-support means 11, and preferably S not more than about half the height or depth of said grating-support means.
Figure 3 illustrates a device according to the invention for use in a drain in which the grating is accomodated in a rectangular opening. The device, however, has the same design as the device illustrated in Figures 1 and 2, and hence no additional description of this embodiment is required. The references used in Figure 3 identify the same elements as the references previously used.
The device according to the invention thus comprises lS only three parts, which can be manufactured at low costs.
By using a flexible bag, the devices requires the minimum of space for storing and transporting the same. That part of the device which is subjected to the most wear is the bag, which can be replaced with a new bag at relatively low cost when necessary. The use of a bag according to the invention also prevents water from collecting, such water collections being prone to freeze in cold weather and generating unpleasant odours in dry periods. By providing the bag and the holder ring with uniformly spaced attachement means, the bag can be mounted in any position of rotation whatsoever. A bag also provides a very large filtering area, which can be adjusted as required.
A device according to the invention can be modified in several respects within the scope of the Claims. Thus, its geometric shape can be adjusted to the drain in which it is to be mounted. The coarse-filtering means may, in addition to a wire basket, also comprise another cup-shaped container having good perrneability. An essential feature of the device according to the invention, however, is that it comprises two separating stages, of which the last stage includes a flexible cloth or fabric material to provide a 11'7~3 fine filtering effect, while the first stage serves to separate coarse material from the drainage water and to protect the bag.
Claims (8)
1. A device for use in water drains provided with an outer drain grating intended to prevent accidents and to prevent coarse material falling into the drain, for separating and collecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities passing through the grating, the device com-prising a holder ring intended to be mounted beneath the drain grating, and carrying a combination of an integrated coarse-filtering and protecting means and a fine-filtering means; the coarse-filtering and protecting means comprising a relatively shallow, cup-shaped basket arranged within the holder ring; the fine-filtering means comprising a filter bag made of a flexible and water-permeable cloth or fabric material and which bag is arranged around said holder ring;
the flexible bag extending below the holder ring to permit the bag to adapt to the lower part of the drain even if the grating is offset relative to the lower part of the drain.
the flexible bag extending below the holder ring to permit the bag to adapt to the lower part of the drain even if the grating is offset relative to the lower part of the drain.
2. A device according to claim 1, wherein the holder ring is funnel-shaped and provided with a mounting flange arranged to be firmly clamped beneath the drain grating;
and wherein the filter bag is suspended from the outer surface of the holder ring.
and wherein the filter bag is suspended from the outer surface of the holder ring.
3. A device according to claim 1, wherein the basket is made of wire and is so constructed that a gap is formed between the basket and the surrounding holder ring.
4. A device according to any of claims 1 to 3, wherein the height of the holder ring is less than the height of a grating-support means carrying said drain grating.
5. A device according to any of claims 1 to 3, wherein the height of the holder ring is less than half the height of a grating support means carrying said drain grating.
6. A device according to any of claims 1 to 3, wherein the filter bag is openable at its lower end.
7. A device according to any of claims 1 to 3, wherein the filter bag is provided at its upper end with overflow openings.
8. A device according to any of claims 1 to 3, wherein the holder ring is provided with a lower transverse handle, which can also serve as a support for the coarse-filtering and protecting means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8105804A SE427680B (en) | 1981-10-01 | 1981-10-01 | DEPARTMENT FOR SEPARATION AND COLLECTION OF POLLUTANTS AT DAYWATER TOWNS |
| SE8105804-2 | 1981-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1176993A true CA1176993A (en) | 1984-10-30 |
Family
ID=20344678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000390061A Expired CA1176993A (en) | 1981-10-01 | 1981-11-13 | Filtering and collecting device for water drains |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4419232A (en) |
| EP (1) | EP0102355B1 (en) |
| JP (1) | JPS58501591A (en) |
| CA (1) | CA1176993A (en) |
| DE (1) | DE3265440D1 (en) |
| DK (1) | DK236183D0 (en) |
| FI (1) | FI834003A0 (en) |
| IE (1) | IE53504B1 (en) |
| NO (1) | NO152224B (en) |
| SE (1) | SE427680B (en) |
| WO (1) | WO1983001268A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4776722A (en) * | 1986-04-01 | 1988-10-11 | Gaudin Carl J | Self sealing sewer cover assembly |
| DK508586A (en) * | 1986-10-23 | 1988-04-24 | Mogens Christensen | DEVICE FIRE FIGHTING OR USEFUL FILTER ORGAN |
| CA1321664C (en) * | 1988-05-04 | 1993-08-24 | Stan Houser | Method and apparatus for removing iron from well water |
| US4927163A (en) * | 1988-12-22 | 1990-05-22 | Stanley Gagas | Storm infilteration disk with filter |
| US4935132A (en) * | 1989-02-22 | 1990-06-19 | Warren Schaier | Drain pipe filter |
| US5062735A (en) * | 1989-12-04 | 1991-11-05 | Gaudin Carl J | Self sealing domed sewer cover assembly |
| US5028320A (en) * | 1989-12-04 | 1991-07-02 | Gaudin Carl J | Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant |
| CA2035753C (en) * | 1991-02-06 | 2001-01-30 | John Van Egmond | Storm water infiltration |
| US5133619A (en) * | 1991-03-18 | 1992-07-28 | Murfae George W | Storm water filtration system for use with conventional storm water collection sewers |
| AU1443892A (en) * | 1991-03-27 | 1992-11-02 | Sanifil Limited | Filter and filter unit |
| FI88323C (en) * | 1991-09-02 | 1993-04-26 | Yenice Limited | ANORDNING VID AVLOPPSBRUNN |
| US5223154A (en) * | 1991-11-01 | 1993-06-29 | Emcon Northwest, Inc. | System for filtering liquids in a catch basin using filters in series and overflow channels |
| US5345741A (en) * | 1992-02-10 | 1994-09-13 | J. & H. Slater Construction Co., Inc. | Silt blockage for catch basins |
| US5232587A (en) * | 1992-03-02 | 1993-08-03 | Tom Hegemier | Stormwater inlet filter |
| US5267509A (en) * | 1992-05-26 | 1993-12-07 | Wettlaufer Dale E | Filter bag assembly |
| US5788849A (en) * | 1992-06-01 | 1998-08-04 | Hutter, Jr.; James E. | Filter system |
| US5383745A (en) * | 1992-12-08 | 1995-01-24 | John P. Deming | Hazardous materials catch basin |
| US5405539A (en) * | 1993-03-04 | 1995-04-11 | Schneider; Thomas W. | Storm drain filter system |
| DE4338085C2 (en) * | 1993-03-06 | 1996-11-28 | Mall Beton Gmbh | Filter device for a shaft for receiving rainwater |
| US5372714A (en) * | 1993-10-21 | 1994-12-13 | Logue, Jr.; George E. | Storm sewer catch basin and filter |
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-
1981
- 1981-10-01 SE SE8105804A patent/SE427680B/en not_active IP Right Cessation
- 1981-11-09 US US06/319,753 patent/US4419232A/en not_active Expired - Lifetime
- 1981-11-13 CA CA000390061A patent/CA1176993A/en not_active Expired
-
1982
- 1982-09-29 WO PCT/SE1982/000300 patent/WO1983001268A1/en active IP Right Grant
- 1982-09-29 JP JP57503034A patent/JPS58501591A/en active Pending
- 1982-09-29 DE DE8282902998T patent/DE3265440D1/en not_active Expired
- 1982-09-29 EP EP82902998A patent/EP0102355B1/en not_active Expired
- 1982-09-29 IE IE2359/82A patent/IE53504B1/en unknown
-
1983
- 1983-05-25 DK DK2361/83A patent/DK236183D0/en not_active Application Discontinuation
- 1983-05-27 NO NO831895A patent/NO152224B/en unknown
- 1983-11-01 FI FI834003A patent/FI834003A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DK236183A (en) | 1983-05-25 |
| US4419232A (en) | 1983-12-06 |
| FI834003A (en) | 1983-11-01 |
| SE8105804L (en) | 1983-04-02 |
| IE822359L (en) | 1983-04-01 |
| DK236183D0 (en) | 1983-05-25 |
| FI834003A0 (en) | 1983-11-01 |
| SE427680B (en) | 1983-04-25 |
| EP0102355A1 (en) | 1984-03-14 |
| NO152224B (en) | 1985-05-13 |
| NO831895L (en) | 1983-05-27 |
| WO1983001268A1 (en) | 1983-04-14 |
| EP0102355B1 (en) | 1985-08-14 |
| DE3265440D1 (en) | 1985-09-19 |
| JPS58501591A (en) | 1983-09-22 |
| IE53504B1 (en) | 1988-11-23 |
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