초록 ▼

A runoff drain filter is comprised of a tray for being supported inside a runoff drain. A plurality of separately removable cartridges are supported by the tray and aligned with holes in the tray. Each cartridge is comprised of a bucket and an insert. The insert is comprised of a central overflow tu

A runoff drain filter is comprised of a tray for being supported inside a runoff drain. A plurality of separately removable cartridges are supported by the tray and aligned with holes in the tray. Each cartridge is comprised of a bucket and an insert. The insert is comprised of a central overflow tube centered in the bucket by a vented annular top plate and an annular bottom plate. Runoff pouring into the tray is directed into each bucket through the vented annular top plate. The runoff is filtered by a perforated tube which is part of the central overflow tube before it is discharged through an open bottom of the central overflow tube. Debris and contaminants are collected in the buckets. The total capacity of the filter is divided among the separately removable cartridges to enable a filled cartridge to be more easily lifted by an average person.

대표청구항 ▼

1. A runoff drain filter, comprising:a tray for being supported in a runoff drain, said tray having a plurality of holes on a bottom; anda plurality of separately removable cartridges supported by said tray in alignment with said holes for filtering debris from runoff entering said drain, said cartr

1. A runoff drain filter, comprising:a tray for being supported in a runoff drain, said tray having a plurality of holes on a bottom; anda plurality of separately removable cartridges supported by said tray in alignment with said holes for filtering debris from runoff entering said drain, said cartridges dividing a total capacity of said filter into smaller portions for making removing said cartridges easier when said cartridges are full of said debris. 2. The runoff drain filter of claim 1, wherein each of said cartridges is comprised of an open top bucket with a fully closed bottom, and exit holes distributed around a vertical wall of said bucket. 3. The runoff drain filter of claim 1, wherein each of said cartridges is comprised of a 5-gallon bucket for limiting a weight of said debris collectable in said bucket. 4. The runoff drain filter of claim 1, wherein each of said cartridges is comprised of:an open top bucket;an insert positioned within said bucket, wherein said insert is comprised of:a tubular inner screen;a tubular outer screen; andfilter media received between said inner screen and said outer screen for filtering said runoff; anda central bin within said inner screen, wherein said central bin includes an open top and a closed bottom for collecting said debris. 5. The runoff drain filter of claim 1, further including bypass drainage apertures around a surrounding wall of said tray. 6. A runoff drain filter, comprising:a bucket for being supported in a runoff drain, said bucket having an open top, a constricted bottom, and a hole in said constricted bottom;a removable insert positioned in said bucket, said insert comprising:a central overflow tube with open opposite ends aligned with said hole on said constricted bottom of said bucket;a vented annular top plate attached around said central overflow tube for admitting runoff between said bucket and said central overflow tube; andan annular bottom plate attached around said central overflow tube below said annular top plate for supporting debris; whereinsaid central overflow tube is comprised of a perforated tube for filtering said debris from said runoff; andsaid insert is supported in said bucket by said constricted bottom, and is removable from said bucket for emptying said debris. 7. The runoff drain filter of claim 1, wherein said central overflow tube is comprised of a solid top tube and a solid bottom tube connected by said perforated tube, said annular top plate is attached to said solid top tube for strength, and said annular bottom plate is attached to said solid bottom tube for strength. 8. The runoff drain filter of claim 1, wherein said bucket is comprised of a 5-gallon bucket for limiting a weight of said debris collectable in said bucket. 9. The runoff drain filter of claim 1, further including louvers arranged on said annular top plate of said insert for spinning runoff against said bucket for reducing clogging. 10. The runoff drain filter of claim 1, further including a resilient seal attached around an edge of said annular top plate and movably pressed against bucket. 11. The runoff drain filter of claim 1, further including a loose cushy mesh wrapped around said perforated tube for improved filtration. 12. The runoff drain filter of claim 1, further including a larger diameter second perforated tube positioned around perforated tube, and a filter media received between said perforated tube and said second perforated tube for filtering hydrocarbons. 13. A runoff drain filter, comprising:a tray for being supported in a runoff drain, said tray having a plurality of holes on a bottom;a plurality of separately removable cartridges supported by said tray in alignment with said holes on said tray for filtering debris from runoff entering said drain, said cartridges dividing a total capacity of said filter into smaller portions for making removing said cartridges easier when said cartridges are full of said debris, each of said cartridges comprising:a buc ket with an open top, a constricted bottom, and a hole in said constricted bottom;a removable insert positioned in said bucket, said insert comprising:a central overflow tube with open opposite ends aligned with said hole in said constricted bottom of said bucket;a vented annular top plate attached around said central overflow tube for admitting said runoff between said bucket and said central overflow tube; andan annular bottom plate attached around said central overflow tube below said annular top plate for supporting said debris; whereinsaid central overflow tube is comprised of a perforated tube for filtering said debris from said runoff; andsaid insert is supported in said bucket by said constricted bottom, and is removable from said bucket for emptying said debris. 14. The runoff drain filter of claim 13, wherein said central overflow tube is comprised of a solid top tube and a solid bottom tube connected by said perforated tube, said annular top plate is attached to said solid top tube for strength, and said annular bottom plate is attached to said solid bottom tube for strength. 15. The runoff drain filter of claim 13, wherein said bucket is comprised of a 5-gallon bucket for limiting a weight of said debris collectable in said bucket. 16. The runoff drain filter of claim 13, further including louvers arranged on said annular top plate of said insert for spinning runoff around against said bucket for reducing clogging. 17. The runoff drain filter of claim 13, further including bypass drainage apertures around a surrounding wall of said tray. 18. The runoff drain filter of claim 13, further including a resilient seal attached around an edge of said annular top plate and movably pressed against bucket. 19. The runoff drain filter of claim 13, further including a loose cushy mesh wrapped around said perforated tube for improved filtration. 20. The runoff drain filter of claim 13, further including a larger diameter second perforated tube positioned around perforated tube, and a filter media received between said perforated tube and said second perforated tube for filtering hydrocarbons.