The curb inlet filter includes a filter bag having an opening at an upper end leading into an interior of the filter bag and a support bar coupled to one side of the upper end of the filter bag. The support bar is configured to rest outside of the basin against curb face sides bounding the opening i
The curb inlet filter includes a filter bag having an opening at an upper end leading into an interior of the filter bag and a support bar coupled to one side of the upper end of the filter bag. The support bar is configured to rest outside of the basin against curb face sides bounding the opening in the street level curb face. A support frame is coupled to a second side of the upper end of the filter bag and is configured to engage with the support bar to suspend the support frame substantially at grade within an interior of the basis and define a rigid opening into the filter bag. The remainder of the filter bag hangs below grade within the curb side drain basin.
대표청구항▼
1. A curb inlet filter for use with a curb-side drain, said drain of a type including a below-grade basin having an at-grade, elongated opening aligned with an opening in a street-level curb face, wherein the curb inlet filter includes: a filter bag having an opening at an upper end leading into an
1. A curb inlet filter for use with a curb-side drain, said drain of a type including a below-grade basin having an at-grade, elongated opening aligned with an opening in a street-level curb face, wherein the curb inlet filter includes: a filter bag having an opening at an upper end leading into an interior of the filter bag;a support bar coupled to one side of the upper end of the filter bag and configured to rest outside of the basin against curb face sides bounding the opening in the street level curb face; anda support frame coupled to a second side of the upper end of the filter bag and configured to engage with the support bar to suspend the support frame substantially at grade within an interior of the basin and define a rigid opening into the filter bag. 2. The curb inlet filter of claim 1, the filter bag having first and second filter fabric side panels joined together along side edges to form the bag, with the first side panel being longer than the second side panel. 3. The curb inlet filter of claim 2, wherein upper portions of the side panels have loops defined therein, the support bar received within loops of the first filter fabric panel and the support frame received within loops of the second side panel. 4. The curb inlet filter of claim 3, wherein upper portions of the side edges of the first filter fabric panel are not joined to the second filter fabric and define a portion of an expanse of the opening of the filter bag when the support bar and support frame are engaged together. 5. The curb inlet filter of claim 2, wherein the support frame includes an arc portion received within the loops of the second side panel, and exposed terminal portions having a length approximately equal to a difference in length between the first and second panel. 6. The curb inlet filter of claim 1, wherein the support frame subtends an arc such that a semicircular opening into the interior of the filter bag is defined when the support frame is engaged with the support bar. 7. The curb inlet filter of claim 6, wherein terminal ends of the support frame end in loops, the support bar being slidingly engaged with the loops of the support frame when engaged. 8. The curb inlet filter of claim 1, the filter bag including at least one slit formed in an upper end of the filter bag configured to receive a vertical rebar support of the curb inlet filter therethrough when the curb inlet filter is installed within the curb-side drain. 9. The curb inlet filter of claim 1, the support frame including overlapping sections moveable with respect to one another so as to change a linear dimension of the support frame so that the wire frame can accommodate drains of various dimensions. 10. The curb inlet filter of claim 1, further including a pull strap affixed to the filter proximate the support frame to assist in removing the filter from the curb-side drain basin. 11. A method for installing a curb inlet filter into a curb-side drain, the method comprising: installing an elongate rigid portion of the filter at grade level outside of a curb-side drain basin;suspending a semi-rigid spring portion of the filter at grade within the curb-side drain basin;coupling the elongate rigid portion and semi-rigid spring portion together to define an opening into the curb inlet filter; anddisposing a remaining portion of the curb drain filter below grade in the drain basin so that water and debris flowing into the curb-side drain fall through the opening into an interior of the curb inlet filter and water exits through holes formed in the filter but that debris is retained therein. 12. The method of claim 11, wherein the elongate rigid portion includes a support bar coupled to an upper portion of the filter, the method further including: coupling the curb inlet filter together outside of the curb-side drain; andinserting the curb inlet filter through an opening of the curb-side drain so that only the elongate rigid portion remains outside of the curb-side drain basin. 13. The method of claim 11, wherein the elongate rigid portion includes a support bar coupled to an upper portion of the filter, the method further including: inserting all of the curb inlet filter except the support bar through a man hole opening proximate the curb-side drain;positioning the upper portion of the filter through an opening in a street-level curb face leading to the curb-side drain basin; andcoupling the support bar to the upper portion from outside of the curb side drain to rest outside of the basin against curb face sides bounding the opening in the street-level curb face. 14. The method of claim 13, further including: defining slits within the upper portion of the filter;receiving vertical supports defined within the opening of the street-level curb face within the slits so that part of the upper portion extends outside of the vertical supports; andcoupling the support bar to the upper portion of the filter so that the support bar rests outside of the vertical supports. 15. The method of claim 11, further including: forming a pull strap proximate the semi-rigid spring portion;grasping the pull strap; andremoving the filter through a man hole opening proximate the curb-side drain. 16. The method of claim 11, further including flexing the semi-rigid spring portion so that terminal portions of the spring portion bias against opening sidewalls of the curb-side drain. 17. The method of claim 16, wherein the elongate rigid portion includes a support bar coupled to an upper portion of the filter, the method further including: forming loops on terminal ends of the semi-rigid spring portion;forming loops within the upper portion of the filter inside of the loops on the terminal ends of the semi-rigid spring portion; andslidingly receiving the support bar through the loops on the terminal ends of the semi-rigid spring portion and through loops within the upper portion of the filter inside. 18. The method of claim 11, further including: providing slidingly overlapping sections of the semi-rigid spring portion; andadjusting a length of the spring portion by sliding the overlapping sections with respect to one another to better accommodate a width of an opening in a street-level curb face leading to the curb-side drain basin. 19. A curb-side drain filter bag comprising: a first filter fabric panel having a bottom edge, top edge, and side edges;a second filter fabric panel having a bottom edge, top edge and side edges, the first fabric panel being longer than the second filter fabric panel so that an upper portion extends past the second filter fabric panel;the second filter fabric panel being joined along bottom and side edges to respective bottom and side edges of the first filter fabric to form an opening into the filter bag, with upper side edge portions of the first filter fabric not being joined to the second filter fabric panel to form a free expanse;loops formed within at a top edge of the first and second filter fabric panels;a support frame partially received within the loops of the second filter fabric panel and having exposed terminal portions approximately equal in length to the free expanse of the first filter fabric panel;a support bar received within loops of the first filter fabric panel and slidingly coupled to terminal ends of the support frame terminal portions, the support bar and support frame forming a rigid opening into an interior of the filter bag with the expanse configured to guide water and debris into the interior of the filter bag when the bag is installed within a curb-side drain. 20. The curb-side drain filter bag of claim 19, wherein the support frame includes an arc portion received within the loops of the second filter fabric panel and configured to extend the opening of the filter bag and flex to fit a plurality of widths of the curb-side drain.
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이 특허에 인용된 특허 (21)
Strawser ; Sr. Daniel M., Collapsible catch basin grate filter assembly.
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