# US 7,875,178 B2 · Water quality drain basin insert > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,875,178 B2 - Document ID: US7875178B2 - Status: Granted - Kind: B2 - Application number: 11/346,837 - Filed: 2006-02-06 - Published: 2007-08-09 - Granted: 2011-01-25 - Earliest claimed: 2006-02-06 - Assignees: ADS Structures, Inc. - Inventors: Courtney Ashliman - Web page: https://patentgrep.com/patent/US7875178B2 ## CPC - B01D 24/007: {with multiple filtering elements in series connection} - B01D 24/12: Downward filtration, the filtering material being supported by pervious surfaces (B01D24/18 takes precedence) - B01D 29/17: open-ended {the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element} - B01D 29/23: arranged for outward flow filtration - B01D 29/54: arranged concentrically or coaxially - B01D 29/58: arranged concentrically or coaxially - E03F 1/00: Methods, systems, or installations for draining-off sewage or storm water - E03F 5/0404: {with a permanent or temporary filtering device; Filtering devices specially adapted therefor} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - E03F: SEWERS; CESSPOOLS ## Abstract A drain basin insert having a housing, with the housing having a sidewall having a top edge and a bottom edge, and with the housing having a perforated base member secured to the sidewall at the lower edge of the sidewall, and with the housing having an outwardly extending flange at the top edge of the sidewall. The insert also includes a secondary filter means having a permeable container having hydrophobic filter media therein. The insert also has a perforated, rigid structural member having a bottom wall and a raised portion, with the raised portion attached to the bottom wall and extending upwardly therefrom. The insert also has a primary filter means having an outer sidewall, a bottom surface, and a central portion, with the bottom surface contacting the bottom wall of the perforated structural member, and with the central portion contacting the raised portion of the perforated structural member. The housing sidewall also has an interior lip extending inwardly therefrom located intermediate the bottom and top edges. ## Claims ### Claim 1 A catch basin insert comprising a housing, said housing having a sidewall having a top edge and a bottom edge, said housing having a perforated base member secured to said sidewall at said bottom edge of said sidewall, a perforated structural member having a perforated bottom wall, a perforated sidewall extending upwardly from the perforated bottom wall, and a perforated raised portion, said perforated structural member being rigid, and said perforated raised portion attached to said perforated bottom wall and extending upwardly therefrom to a height above the perforated sidewall, a primary filter having an outer sidewall, a bottom surface, and a central portion, said bottom surface contacting said bottom wall of said perforated structural member, said central portion contacting said raised portion of said perforated structural member, a secondary filter positioned within the housing below the perforated structural member and the primary filter; and a transition plate, said transition plate being a detachable plate that is removable from said insert, said transition plate having a top surface contacting said top edge of said housing, said transition plate having an aperture through which said housing is inserted so as to downwardly depend from said transition plate, said perforated structural member spaced a distance below said transition plate. ### Claim 2 (depends on 1) The insert according to claim 1 wherein said housing includes an outwardly extending flange at said top edge of said sidewall, and an interior lip projecting inwardly from said housing sidewall intermediate said housing top edge and said housing bottom edge, said insert includes two compartments, said primary filter being in the first compartment and said secondary filter being in the second compartment, said second compartment being below said bottom surface of said primary filter and below said perforated structural member bottom wall, said second compartment extending from said housing base member upward to said interior lip; and said bottom wall of said perforated structural member is contacting said interior lip. ### Claim 3 (depends on 1) The insert according to claim 1 wherein said perforated structural member has a grasping portion extending therefrom. ### Claim 4 (depends on 1) The insert according to claim 1 which includes a primary filter retainer having a first portion directly adjacent a portion of said housing sidewall, a second portion having a downwardly extending sidewall, and an aperture, said primary filter retainer being directly above said primary filter in contacting relationship therewith. ### Claim 5 (depends on 1) The insert according to claim 1 wherein said housing has at least one overflow slot, said overflow slot located in said housing sidewall intermediate said raised portion of said perforated structural member and said housing sidewall top edge. ### Claim 6 (depends on 1) The insert according to claim 1 wherein said secondary filter includes a filter media that actively bonds to hydrocarbons. ### Claim 7 A catch basin insert comprising a housing, said housing having a sidewall having a top edge and a bottom edge, said housing having a perforated base member secured to said sidewall at said bottom edge of said sidewall, said housing having an outwardly extending flange at said top edge of said sidewall, a perforated structural member having a perforated bottom wall, a perforated sidewall extending upwardly from the bottom wall, and a perforated raised portion, said perforated structural member being rigid, and said raised portion attached to said bottom wall and extending upwardly therefrom to a height above the perforated sidewall, a primary filter having an outer sidewall, a bottom surface, and a central portion, said bottom surface contacting said bottom wall of said perforated structural member, said central portion contacting said raised portion of said perforated structural member, said housing having at least one overflow slot, said overflow slot located in said housing sidewall intermediate said raised portion of said perforated structural member and said housing sidewall top edge; and a transition plate, said transition plate being a detachable plate that is removable from said insert, said transition plate having a top surface contacting said flange at said top edge of said housing, said transition plate having an aperture through which said housing is inserted so as to downwardly depend from said transition plate, said perforated structural member spaced a distance below said transition plate. ### Claim 8 (depends on 7) The insert according to claim 7 wherein said housing sidewall has an interior lip extending inwardly therefrom located intermediate said bottom edge and said top edge, said bottom wall of said perforated structural member contacting said interior lip. ### Claim 9 (depends on 7) The insert according to claim 7 wherein said perforated structural member has a grasping portion extending therefrom. ### Claim 10 (depends on 7) The insert according to claim 7 which includes a primary filter retainer having a first portion directly adjacent a portion of said housing sidewall, a second portion having a downwardly extending sidewall, and an aperture, said primary filter retainer being directly above said primary filter in contacting relationship therewith. ### Claim 11 (depends on 7) The insert according to claim 7 further comprising a secondary filter including a hydrophobic filter media that actively bonds to hydrocarbons. ### Claim 12 A catch basin insert comprising a housing, said housing having a sidewall having a top edge and a bottom edge, said housing having a perforated base member secured to said sidewall at said bottom edge of said sidewall, said housing having an interior lip projecting inwardly from said housing sidewall intermediate said housing top edge and said housing bottom edge, a perforated structural member having a perforated bottom wall, a perforated sidewall extending upwardly from said bottom wall, and a perforated raised portion, said perforated structural member being rigid, and said raised portion attached to said bottom wall and extending upwardly therefrom to a height above the perforated sidewall, a primary filter having an outer sidewall, a bottom surface, and a central portion, said bottom surface contacting said bottom wall of said perforated structural member, said central portion contacting said raised portion of said perforated structural member, said insert having two compartments, said primary filter being in the first compartment and said secondary filter being in the second compartment, said second compartment being below said bottom surface of said primary filter and below said perforated structural member bottom wall, said second compartment extending from said housing base member upward to said interior lip; a secondary filter including a permeable container having hydrophobic filter media therein; and a transition plate, said transition plate being a detachable plate that is removable from said insert, said transition plate having a top surface contacting said flange at said top edge of said housing, said transition plate having an aperture through which said housing is inserted so as to downwardly depend from said transition plate, said perforated structural member spaced a distance below said transition plate. ### Claim 13 (depends on 12) The insert according to claim 12 wherein said bottom wall of said perforated structural member is contacting said interior lip. ### Claim 14 (depends on 12) The insert according to claim 12 wherein said perforated structural member has a grasping portion extending therefrom. ### Claim 15 (depends on 13) The insert according to claim 13 further comprising a channel located between said sidewall of said perforated structural member and said housing sidewall, wherein said channel extends upwardly from said interior bottom wall of said perforated structural member.