US20050067338A1 - Subgrate drain basin filter - Google Patents
Subgrate drain basin filter Download PDFInfo
- Publication number
- US20050067338A1 US20050067338A1 US10/456,875 US45687503A US2005067338A1 US 20050067338 A1 US20050067338 A1 US 20050067338A1 US 45687503 A US45687503 A US 45687503A US 2005067338 A1 US2005067338 A1 US 2005067338A1
- Authority
- US
- United States
- Prior art keywords
- support
- basin
- cover
- filter basket
- inlet
- 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.)
- Abandoned
Links
Images
Classifications
-
- 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
- E03F5/04—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
Abstract
The present invention is a filter insert inside a storm water inlet with a grate cover and including an inlet with a combination of curb inlet and grate, and holds the insert within the inlet by means of a support inserted within a sleeve that rests directly upon the basin covers' support.
Description
- This application in part discloses and claims subject matter disclosed in my earlier filed pending application, Ser. No. 09/991,733, Filed Nov. 20, 2001
- This invention relates to a filter for use inside storm water inlet basins, beneath perforated covers such as perforated manhole receptacles or a catch basins covered with grates.
- Storm water collection systems are located throughout our city streets and parking lots providing flood control and drainage. The storm water needs to be as free as possible from pollutants before it enters our natural water systems such as streams. To ensure that our water sources are protected our handling of storm water is becoming more regulated. In order to meet these concerns, many inventions have been patented that provide an anti pollution filter insert system for catch basins and manholes. Most of these inventions are unnecessarily expensive. The present invention pertains specifically to storm water inlet basins with perforated top covers.
- See above primary patent
- Accordingly, my invention provides a filter with a support structure and filter basket which is inexpensive to manufacture, and is easy to install, remove, or service. Further objects and advantages of my invention will also become apparent from a consideration of the drawings and ensuing descriptions.
- Figure IV is an exploded perspective drawing of my in subgrate basin insert for a combination grate and curb inlet including a cut away that shows a by pass opening.
- Figure V is an exploded perspective of my subgrate basin insert with a discontinuous rod support structure.
- Figure VI is a perspective drawing of my subgrate basin insert with four support bars.
- Insert for a Grate and Curb Inlet Combination
- In the preferred embodiment of my invention the support structure comprises the
right support bar 44, theleft support bar 46, thefront bar spreader 58, and therear bar spreader 56. The support structure is typically made of eighteen gage galvanized sheet metal in an angle iron formation with a two inch width on both the horizontal and vertical angles. The right support bar is shown inserted in the bar sleeve. Thefront bar spreader 58 holds the support bars on their cover support ledges by jamming their vertical angle between the support bars while thebridge ear 42 holds the spreader in position. The rear spreader is inserted into the bar sleeve and is also in an angle iron form. It holds the ends of the support bars in place. - Both bar spreaders are approximately one inch shorter than the full width of the basin top opening. The length of the spreaders exceed the distance between the opposite walls of the inlet basin by approximately three inches. The rods rest flat on the cover ledges underneath the perforated cover when the cover is in place.
- A
bag assembly 54 comprises afilter basket 38 and twobar sleeves 48 and 49. The continuous sleeve 49 is one continuous length enclosing aright support bar 44 and its bottomright support arm 62, shown inserted inside the sleeve, and further suspending across to enclose a leftbottom support arm 64 and theleft support bar 46 when assembled. The bag assembly is attached to the support structure by means of thecontinuous sleeve 50 and thebar sleeve 48. These bar sleeves enclose the two support bars and bottom support arms and therear bar spreader 56. The filter basket is made of a porous material with hydraulic openings smaller than the pollutants intended to be filtered from the storm water. In my preferred embodiment the bag assembly is made from a polypropylene geotextile fabric. However this filter may be made of many types of porous materials for example, cotton, burlap, fiberglass screen, stainless steel, galvanized steel, or aluminum mesh. - In my preferred embodiment one or more by
pass openings 36 are located in the basin basket walls under abridge flap 40. Bridge flap 40 bridges storm water over the bypass openings into the inside of afilter basket 38. Other bypass means may be utilized along with this support structure, for example a bypass looped between the support ledges under a metal bridge as shown in Figure I bridge 18. Another by pass opening could be added when necessary by inserting a vertical tubular outlet with the upper lip rising above the center inside floor of the filter basket. - In my preferred embodiment, when the apparatus is assembled, the combination of the right support bar and enwrapping sleeve rests directly upon the
cover support ledge 52 and the left combination of the same rests directly upon a support ledge (not shown) essentially on the opposite side of the basin fromledge 52. There is no intervening support structure between this combination and the cover support ledge. The support ledges 52 are typically two inches wide and about two feet long. There are usually only these two supports in a combination curb and grate inlet basin. The bottom vertical angle of the support bars' angle iron formed on thesupport bars right support arm 64. The typical curb and grate inlet has apermanent basin bar 66 that extends across the basin in front of the curb inlet parallel with the curb. When my invention is in place, the support bars are placed so that the extended support arms are located inside thecontinuous bar sleeve 50 and extend under thebasin bar 66 into thecurb inlet 60. They hold the continuous bar sleeve along the upper peripheral edge of the filter basket in place against the outer inside walls of thecurb inlet 60. The curb inlet side walls are unique from one inlet to another. This vertical angle of the lower support bars that extends under thebasin bar 66 is made of flat sheet metal. These are easy to bend into shape in order to fit the large variety of curb inlet side walls. This bending is necessary only during an original installation. During replacement of the bag assembly, there would be no need to reshape the lower support bars because the entire support structure can be reused without alteration. APillow 67 can be placed within the filter basket to further remove pollutants by absorbing hydrocarbons. The extension of the lower support arms into inside the curb inlet and the holds the peripheral edge of the filter basket against the curb inlet side walls. This catches the storm water that flows from the street to behind the basin bar into the curb inlet and guides the storm water into inside the basin basket. - Insert With a Discontinuous Rod Support Structure
- In the single discontinuous rod basin design shown in Figure V, the support structure consists of a single
discontinuous support rod 80 of elongated material that is essentially rigid. In my preferred embodiment the support rod comprises one piece of #9 galvanized metal wire. This is essentially resistant to both wear and corrosion. The discontinuous metal rod bends essentially at the corners inside a rectangular inlet basin or bending in an essentially circular configuration inside a circular inlet basin. When formed to fit a basin, the rod has two ends that bend around and form anoverlap 72 at each end. - The support rod is inserted into the
rod sleeves 82 located on the upper peripheral lip of thebag assembly 78. The bag assembly comprises therod sleeves 82 and thefilter basket 74 suspended thereon. This combination of rod and sleeve rests directly upon thecover support ledge 84 and under theperforated basin cover 70 holding the apparatus in position on the cover supports. A basin support may consist of other support structures other than a ledge. For example the perforated basin cover might rest on bolts that extend out from the sides of the inlet basin walls. Across gaps in thecover support 86 additional reinforcement such as tubing orangle iron 76 may underprop the rod. APillow 67 may be placed within the filter basket to further remove pollutants by absorbing hydrocarbons.5 - The Subgrate Basin Insert With Four Bars
- The preferred embodiment of the subgrate basin insert with four bars comprises a support structure and a
bag assembly 94 suspended thereon. The support structure consists multiple lengths of elongated essentially rigid material or in my preferred embodiment four support bars 100. The bag assembly comprises afilter basket 94 and fourbar sleeves 102. The bars stretch the sleeves across a portion of the inletcover support ledge 104. The four bar sleeves enclose four support bars 100. The combination of support bars and sleeves rest directly upon thecover support ledges 104 without any intervening structure. Frequently there are only two cover support ledges in the basin leaving gaps in thecover ledge 86 on the opposite sides of the rectangle. When there are gaps in the support angle, angle iron shaped support bars replace the essentially flat support bars 100, giving additional strength in order to span inlet basin sides. Each bar extends onto each of the two opposite ledges. Where the bars require extra strength to expand across the basin between gaps in thecover ledge 86 the support bars are made of 18 gage galvanized sheet metal in angle iron form as insupport angle iron 76. The ends are then placed on the ledges and in a corner of the basin in order to hold the opposite bars in position. The support ledges are typically about two inches wide. In my preferred embodiment, the support rods are made of eighteen gage galvanized sheet metal two inches wide and about inch shorter than the length of the expansion across the basin, The filter basket is made of a porous material with hydraulic openings smaller than the pollutants intended to be filtered from the storm water. In my preferred embodiment, the bag assembly is made from a polypropylene geotextile fabric. However this filter may be made of many types of porous materials for example, cotton, burlap, or stainless steel, galvanized steel, fiberglass, and aluminum mesh. APillow 67 may be placed within the filter basket to further remove pollutants by absorbing hydrocarbons. -
Bypass 92 is located in the insides of the filter basket under the bridge flap allowing storm water to flow easily out unhindered between the basket and the inlet basin walls. In my preferred embodiment the bridge is a flap extension of the bar sleeve. Thebridge flap 96 conveys the storm water over the bypass opening and into the inside of thefilter basket 94. Thebridge flap 96 can comprise any suitable metal or fabric. In my preferred embodiment it is comprised of geotextile material and is an extension of the filter basket. APillow 67 may be placed within the filter basket to further remove pollutants by absorbing hydrocarbons. - Operation of my Invention
- My invention removes and retains storm water pollutants within a storm
water inlet basin perforated basin cover bar sleeves rod sleeve 48. The storm water then flows into thefilter basket cover support ledge perforated cover bridge flap filter basket Pillow 67 may be placed within the filter basket to further remove pollutants such as hydrocarbons by absorbing the pollutants. - The
bridge flap - The present invention is convenient to install. In the insert for a grate and curb inlet combination as shown in Figure IV, first remove the perforated basin cover 34 from the basin inlet. Next bend the
left support arm 62 on the end of theleft support bar 46 until it follows snugly against the left inside of thecurb inlet 60 when the support bar is laid on the left cover support ledge not shown butopposite cover support 52 and the left support bar is extended under thebasin bar 66. The front of the bar should extend out of the sleeve about 1½ inches. Do the same on theright support bar 44 on the rightcover support ledge 52. Insert the right and left support bars 44 and 62 with thebottom support arms continuous bar sleeve 50. Insert therear bar spreader 56 into thebar sleeve 48. Lay the partially assembled apparatus onto the cover support ledges with both of the bottom support arms extending inside the continuous bar sleeve under thebasin bar 66 into thecurb inlet 60. The upper lip of the filter basket loops between the right and left bottom support arms. The upper lip of the filter basket needs to be firm against only the sides of the curb inlet because this is where essentially all the storm water enters through the curb inlet opening. Lay the rear bar spreader between the rear ends of the support bars to keep them positioned upon the support ledges. Lay thefront bar spreader 58 with the shorter side of the angle iron form down between the right and left support bars 44 and 46 forcing the support bars to stay in place in the sleeve upon the support ledges. APillow 67 can be placed within the filter basket to further remove pollutants by absorbing hydrocarbons. With the apparatus in position replace the perforatedbasin cover 34. To remove the apparatus reverse the order of the above procedure. - Installing a single rod design shown in Figure V, is also convenient. The
rod 80 can be cut from a continuous inexpensive wire roll and custom fit on site. Bend the rod into a rectangular pattern so that it fits snugly into the four corners of thebasin inlet 68. Beginning with one side, insert the rod 22 into thebar sleeves 48 until all four sleeves on all sides of thebag assembly 78 are inserted and slid around onto the full length of the rod. The last extension of the rod will be double within the sleeve because it includes therod overlap 72. Once formed, the rod can be conveniently reused when renewing the bag assembly without rebending the rod. Next, insert the assembled apparatus inside theinlet basin 68 on thecover support ledge 84. Where the support ledges are on only two sides of the inlet basin, the sides with the gap in thecover ledge 86 may require additional support for the support rod. For this, cradle the support rod onangle iron 76 with the angle iron laying like an “L” so that the top of the “L” extends between the perforated basin cover and the basin inlets' opening. With the apparatus installed replace the perforatedbasin cover 90. To remove the apparatus reverse the order of the above procedure. - To install the rectangle design for the insert with corner bypasses as shown in Figure VI, first remove the
perforated basin cover 90. Insert the foursupport bars 100 into the sleeves of thebag assembly 98. Then lay each inserted bar upon the fourcover support ledges 104 in theinlet basin 88. Where there are only two parallel cover ledges use sheet metal formed intoangle iron 76 to extend acrosssupport gap 86. Place the angle iron support bars resting the ends of the support bars upon the ledges in the basin corners so that the remaining two support bars are held in position upon the cover support ledges. With the apparatus in position replace the basin cover. To remove the apparatus reverse the order of the above procedure. - Servicing the filter insert is convenient. They can be either vacuumed out or the entire apparatus pulled out by hand and emptied. If the apparatus is vacuumed the bag assembly needs to be rigid to resist the suction of the vacuum. The filter basket may include a semi rigid perforated reinforcement within the filter basket that resists deformation especially during maintenance. The bag assembly can be made more rigid with reinforcement such as a wire screen either built into the bag assembly or laid within the filter basket.
- Accordingly the reader will see that this invention can be used to remove pollutants from storm water within an inlet basin before the water is released down stream from the basin. One can also see that it is economical to manufacture, install and service. Although the description above contains many specifications, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention. Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.
Claims (14)
1 I claim in a storm water inlet basin
a) with a combination of a curb inlet and a perforated cover,
b) that rests on a cover support within a storm water inlet basin,
c) with a filter basket assembly located essentially beneath said perforated cover,
d) a support means to hold said filter basket assembly in position within said inlet basin comprising a combination of support bars, a bar sleeve and a continuous bar sleeve formed in the upper peripheral edge of the filter basket assembly wherein said combination rests directly upon said cover support, and further said support bars hold a portion of said continuous bar sleeve in place essentially against the inside outer walls of said curb inlet by means of support arms, and further the support bars also hold portions of the continuous bar sleeve in place along cover supports.
2 Said support means of claim 20 further comprising a front and rear spreader bar that hold the right and left support bars in position upon the cover support ledges.
3 The support means of claim 20 further comprising a front spreader bar and a bypass bridge.
4 The filter basket of claim 20 further comprising a semi rigid perforated reinforcement within the filter basket that resists deformation during maintenance.
5 I claim in a storm water inlet basin comprising
a) a perforated cover that rests upon
b) a cover support within a top opening of a storm water inlet basin with
c) a basin insert located below said inlet basin's perforated cover and essentially within said inlet basin,
d) a support structure with a filter basket assembly suspended thereon wherein said support structure consists of elongated essentially rigid material inserted into one or more sleeves formed on an upper periphery portion of said filter basket wherein said ridged material stretches said sleeve along the cover support and lays the combination of said sleeves and said essentially rigid material directly upon said cover support holding the filter basket in place within said inlet basin.
6 The support structure of claim 24 wherein said elongated essentially rigid material is a discontinuous metal rod that bending essentially at the corners at the cover supports inside a rectangular inlet basin or bending at the cover supports in an essentially circular configuration inside a circular inlet basin.
7 The said discontinuous rod of claim 25 further comprising two open ends that overlap.
8 Said support structure of claim 25 wherein the elongated essentially rigid material is underpropped across gaps in the cover support by additional reinforcement such as but not limited to tubing or sheet metal in angle iron form
9 Said filter bag assembly of claim 24 further comprising a semi rigid perforated reinforcement within the filter basket that resists bag deformation.
10 The support structure of claim 24 comprising multiple lengths of the elongated essentially rigid material.
11 The elongated essentially rigid material of claim 24 comprising sheet metal.
12 The basin insert of claim 24 comprising one or more filter bypasses and a by pass bridge to channel storm water over the bypass opening into inside the filter basket.
13 The by passes of claim 32 located essentially in the corners of the inlet basin.
44 The bridge of claim 32 consisting of a flap extension to said sleeve of the bag assembly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/456,875 US20050067338A1 (en) | 2001-11-20 | 2003-06-05 | Subgrate drain basin filter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/991,733 US6666974B2 (en) | 2001-11-20 | 2001-11-20 | Subgrate drain basin filter |
US10/456,875 US20050067338A1 (en) | 2001-11-20 | 2003-06-05 | Subgrate drain basin filter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/991,733 Continuation-In-Part US6666974B2 (en) | 2001-11-20 | 2001-11-20 | Subgrate drain basin filter |
Publications (1)
Publication Number | Publication Date |
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US20050067338A1 true US20050067338A1 (en) | 2005-03-31 |
Family
ID=46301558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/456,875 Abandoned US20050067338A1 (en) | 2001-11-20 | 2003-06-05 | Subgrate drain basin filter |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6974540B1 (en) * | 2004-10-27 | 2005-12-13 | Fleischmann Charles R | Street curb drain filter |
US20080023382A1 (en) * | 2006-07-27 | 2008-01-31 | Longo Salvatore R | Support for filter system |
US20080245710A1 (en) * | 2006-12-08 | 2008-10-09 | Ohio University | Exfiltration apparatus |
US20080290042A1 (en) * | 2007-05-24 | 2008-11-27 | Hanson Mark A | Pollutant Control for Inlet Protection |
US20110198273A1 (en) * | 2010-02-17 | 2011-08-18 | Stormwater Maintenance Company | Multi-stage storm drain filter insert |
US20110278237A1 (en) * | 2010-05-12 | 2011-11-17 | Catch-All, Llc | Deformable sump insert |
WO2013078513A1 (en) * | 2011-12-02 | 2013-06-06 | Envirostream Solutions Pty Ltd | Stormwater filtration grate |
CN104110063A (en) * | 2014-06-30 | 2014-10-22 | 武汉圣禹排水系统有限公司 | Rainwater opening with water filtering bag |
US20140374332A1 (en) * | 2010-09-17 | 2014-12-25 | Michael Morton Hannah | Storm water filter and components thereof and methods of installation and use |
US20160362883A1 (en) * | 2013-07-25 | 2016-12-15 | Abt, Inc. | Drainage device and methods for constructing and use |
US20170145677A1 (en) * | 2015-11-25 | 2017-05-25 | Flo-Water, Llc | Water inlet protection system |
CN108867755A (en) * | 2018-07-13 | 2018-11-23 | 苏州园林发展股份有限公司 | A kind of rainwater-collecting reuse means |
US10384155B1 (en) * | 2013-08-21 | 2019-08-20 | Enpac, L.L.C. | Storm drain sediment filter |
US10465371B2 (en) * | 2011-12-02 | 2019-11-05 | Todd Wacome | Treating runoff |
US11346094B2 (en) * | 2018-07-26 | 2022-05-31 | Landroad Inc | Storm drain filters |
US20220167609A1 (en) * | 2020-12-02 | 2022-06-02 | Denis Friezner | Vector Control Screen For Stormwater Treatment Systems |
US11371203B2 (en) * | 2017-09-08 | 2022-06-28 | Juan Banuelos | Devices for controlling erosion and storm water runoff |
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US20020113025A1 (en) * | 2000-12-11 | 2002-08-22 | Gauldin Patrick W. | Filtration system for storm water catch basins |
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US1746121A (en) * | 1927-08-23 | 1930-02-04 | Levy Adolph | Sewer catch basin |
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Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6974540B1 (en) * | 2004-10-27 | 2005-12-13 | Fleischmann Charles R | Street curb drain filter |
US20080023382A1 (en) * | 2006-07-27 | 2008-01-31 | Longo Salvatore R | Support for filter system |
US9017550B2 (en) * | 2006-12-08 | 2015-04-28 | Ohio University | Exfiltration apparatus |
US20080245710A1 (en) * | 2006-12-08 | 2008-10-09 | Ohio University | Exfiltration apparatus |
US20080290042A1 (en) * | 2007-05-24 | 2008-11-27 | Hanson Mark A | Pollutant Control for Inlet Protection |
US20110198273A1 (en) * | 2010-02-17 | 2011-08-18 | Stormwater Maintenance Company | Multi-stage storm drain filter insert |
US20110278237A1 (en) * | 2010-05-12 | 2011-11-17 | Catch-All, Llc | Deformable sump insert |
US8906232B2 (en) * | 2010-05-12 | 2014-12-09 | Jeff McInnis | Deformable sump insert |
US9624658B2 (en) * | 2010-09-17 | 2017-04-18 | Ehl Limited | Storm water filter and components thereof and methods of installation and use |
US20140374332A1 (en) * | 2010-09-17 | 2014-12-25 | Michael Morton Hannah | Storm water filter and components thereof and methods of installation and use |
WO2013078513A1 (en) * | 2011-12-02 | 2013-06-06 | Envirostream Solutions Pty Ltd | Stormwater filtration grate |
AU2017221901B2 (en) * | 2011-12-02 | 2019-01-17 | Envirostream Solutions Pty Ltd | Stormwater filtration grate |
US10465371B2 (en) * | 2011-12-02 | 2019-11-05 | Todd Wacome | Treating runoff |
US20160362883A1 (en) * | 2013-07-25 | 2016-12-15 | Abt, Inc. | Drainage device and methods for constructing and use |
US10676910B2 (en) * | 2013-07-25 | 2020-06-09 | Abt, Inc. | Drainage device and methods for constructing and use |
US10384155B1 (en) * | 2013-08-21 | 2019-08-20 | Enpac, L.L.C. | Storm drain sediment filter |
US10786765B2 (en) | 2013-08-21 | 2020-09-29 | Enpac, L.L.C. | Storm drain sediment filter |
CN104110063A (en) * | 2014-06-30 | 2014-10-22 | 武汉圣禹排水系统有限公司 | Rainwater opening with water filtering bag |
US20170145677A1 (en) * | 2015-11-25 | 2017-05-25 | Flo-Water, Llc | Water inlet protection system |
US11371203B2 (en) * | 2017-09-08 | 2022-06-28 | Juan Banuelos | Devices for controlling erosion and storm water runoff |
CN108867755A (en) * | 2018-07-13 | 2018-11-23 | 苏州园林发展股份有限公司 | A kind of rainwater-collecting reuse means |
US11346094B2 (en) * | 2018-07-26 | 2022-05-31 | Landroad Inc | Storm drain filters |
US20220167609A1 (en) * | 2020-12-02 | 2022-06-02 | Denis Friezner | Vector Control Screen For Stormwater Treatment Systems |
US11877573B2 (en) * | 2020-12-02 | 2024-01-23 | Denis Friezner | Vector control screen for stormwater treatment systems |
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STCB | Information on status: application discontinuation |
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