# US 12,180,694 B1 · Leaching chamber having a sidewall with louvers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,694 B1 - Document ID: US12180694B1 - Status: Granted - Kind: B1 - Application number: 17/886,939 - Filed: 2022-08-12 - Granted: 2024-12-31 - Earliest claimed: 2019-11-06 - Assignees: Infiltrator Water Technologies, LLC - Applicants: Infiltrator Water Technologies, LLC - Inventors: Paul R. Holbrook; Bryan A. Coppes; Adam Sky Miller - Web page: https://patentgrep.com/patent/US12180694B1 ## CPC - E03F 1/003: {via underground elongated vaulted elements} - B29C 51/002: {characterised by the choice of material} - B29C 51/14: using multilayered preforms or sheets - B29K 2067/003: {PET, i.e. poylethylene terephthalate} - E03F: SEWERS; CESSPOOLS - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract A plastic leaching chamber is provided and includes a chamber substrate constructed from a PET material and having opposing side base flanges which lie in a horizontal plane and extend lengthwise along the chamber substrate. The chamber substrate includes opposing sidewalls extending upwardly from each of the opposing side base flanges to a top of the chamber substrate and includes a lengthwise center plane which is perpendicular to the horizontal plane. The opposing sidewalls define a plurality of leaching openings having at least one tab slot opening located proximate thereto, and a plurality of louver articles constructed from at least one of a PE and a PP material. Each of the louver articles include a tab which is configured to engage a tab slot opening to securely associate the plurality of louver articles with the chamber substrate to cover the at least one leach opening. ## Claims ### Claim 1 A corrugated plastic leaching chamber having opposing side base flanges which lie in a horizontal plane and extend lengthwise along the chamber and opposing sidewalls extending upwardly from each of the opposing side base flanges to a top of the chamber, wherein the chamber includes a lengthwise center plane which is perpendicular to the horizontal plane, the chamber comprising: a chamber substrate constructed from a Polyethylene terephthalate (PET) material, wherein each of the opposing sidewalls defines one or more leach openings and includes one or more louver articles, wherein the one or more louver articles comprise wall spines configured to divide a plurality of slot rows of the one or more louver articles into columns, wherein the one or more louver articles comprise a louver article base comprising a base wall, a first support and a second support configured to form a cavity between the base wall and the chamber substrate, and wherein at least one of the one or more louver articles is securely associated with the chamber substrate to cover at least one of the one or more leach openings. ### Claim 2 (depends on 1) The chamber of claim 1, wherein the chamber substrate includes, a plurality of peak corrugations running transverse to the length of the chamber, wherein each of the plurality of peak corrugations includes a peak top; a plurality of valley corrugations running transverse to the length of the chamber, wherein each of the plurality of valley corrugations includes a valley bottom, wherein each of the peak tops are connected with an adjacent valley bottom via an arch-curving sidewall, wherein each of the plurality of peak corrugations are located adjacent at least one of the plurality of valley corrugations such that the plurality of peak corrugations and the plurality of valley corrugations are alternating along the length of the chamber, and wherein each of the one or more louver articles is securely associated with the chamber to cover the one or more leach openings. ### Claim 3 (depends on 1) The chamber of claim 1, wherein at least one of the one or more louver articles is constructed from at least one of a Polyethylene (PE) and a Polypropylene (PP) material. ### Claim 4 (depends on 2) The chamber of claim 2, wherein the chamber substrate includes at least one tab slot opening located in at least one of the arch-curving sidewalls, or the valley bottoms. ### Claim 5 (depends on 4) The chamber of claim 4, wherein each of the one or more louver articles includes at least one tab, wherein the at least one tab is located proximate the one or more leach openings and configured to securely associate with the at least one tab slot opening. ### Claim 6 (depends on 1) The chamber of claim 1, wherein the chamber substrate is formed using an injection molding process to include the one or more leach openings and a plurality of tab slot openings, wherein each of the one or more leach openings is located proximate a tab slot opening. ### Claim 7 (depends on 6) The chamber of claim 6, wherein the one or more louver articles is formed using an injection molding process and is constructed from at least one of a Polyethylene (PE) and a Polypropylene (PP) material to include a plurality of tabs, wherein each of the plurality of tabs are located and configured to securely engage with one of the plurality of tab slot openings. ### Claim 8 (depends on 7) The chamber of claim 7, wherein each of the plurality of tabs is configured to be contained within a tab slot opening and frictionally engage with the chamber substrate. ### Claim 9 (depends on 7) The chamber of claim 7, wherein each of the plurality of tabs include a tab head which is larger in size than the tab slot opening to securely associate the one or more louver articles with the chamber substrate. ### Claim 10 A plastic leaching chamber, the chamber comprising: a chamber substrate constructed from a Polyethylene terephthalate (PET) material and having opposing side base flanges which lie in a horizontal plane and extend lengthwise along the chamber substrate, wherein the chamber substrate includes opposing sidewalls extending upwardly from each of the opposing side base flanges to a top of the chamber substrate, wherein the chamber substrate includes a lengthwise center plane which is perpendicular to the horizontal plane, and wherein the opposing sidewalls define one or more leach openings having one or more tab slot openings located proximate to the opposing sidewalls, and one or more louver articles constructed from a non-Polyethylene terephthalate (PET) material, wherein each of the one or more louver articles includes at least one tab which is configured to engage with the one or more tab slot openings to securely associate the one or more louver articles with the chamber substrate to cover the one or more leach openings, wherein the one or more louver articles comprise wall spines configured to divide a plurality of slot rows of the one or more louver articles into columns, and wherein the one or more louver articles comprise a louver article base comprising a base wall, a first support and a second support configured to form a cavity between the base wall and the chamber substrate. ### Claim 11 (depends on 10) The chamber of claim 10, wherein the opposing sidewalls include, a plurality of peak corrugations running transverse to the length of the chamber substrate, wherein each of the plurality of peak corrugations includes a peak top; and a plurality of valley corrugations running transverse to the length of the chamber substrate, wherein each of the plurality of valley corrugations includes a valley bottom, wherein each of the peak tops are connected with an adjacent valley bottom via an arch-curving sidewall, and wherein each of the plurality of peak corrugations are located adjacent to at least one of the plurality of valley corrugations such that the plurality of peak corrugations and the plurality of valley corrugations are alternating along the length of the chamber substrate, and wherein a plurality of at least one of the valley bottoms and valley tops define the one or more leach openings. ### Claim 12 (depends on 11) The chamber of claim 11, wherein the one or more tab slot openings is located in at least one of the arch-curving sidewalls, or the valley bottoms. ### Claim 13 (depends on 11) The chamber of claim 11, wherein the one or more leach openings includes a plurality of leach openings, the at least one tab includes a plurality of tabs, and the one or more tab slot openings includes a plurality of tab slot openings. ### Claim 14 (depends on 13) The chamber of claim 13, wherein the chamber substrate is formed using an injection molding process to include the plurality of leach openings and the plurality of tab slot openings, wherein each of the plurality of tab slot openings is located proximate at least one of the plurality of leach openings. ### Claim 15 (depends on 13) The chamber of claim 13, wherein the one or more louver articles is formed using an injection molding process and is constructed from at least one of a Polyethylene (PE) and a Polypropylene (PP) material to include the plurality of tabs, wherein each of the plurality of tabs are located and configured to securely engage with one of the plurality of tab slot openings. ### Claim 16 (depends on 15) The chamber of claim 15, wherein each of the plurality of tabs is configured to be contained within one of the plurality of tab slot openings to frictionally engage with the chamber substrate. ### Claim 17 (depends on 15) The chamber of claim 15, wherein the one or more louver articles is formed using an over-mold injection molding process and is constructed from at least one of a Polyethylene (PE) and a Polypropylene (PP) material to include the plurality of tabs, wherein each of the plurality of tabs are located within one of the plurality of tab slot openings. ### Claim 18 (depends on 17) The chamber of claim 17, wherein each of the plurality of tabs includes a tab head which is larger in size than the one or more tab slot openings to securely associate the one or more louver articles with the chamber substrate. ### Claim 19 (depends on 10) The chamber of claim 10, wherein the one or more louver articles are constructed from at least one of a Polyethylene (PE) and a Polypropylene (PP) material.