# US 2019/0316340 A1 · Low Profile Nestable Leaching Chamber Having Increased Water Storage Volume > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0316340 A1 - Document ID: US20190316340A1 - Status: Published application - Kind: A1 - Application number: 15/954,235 - Filed: 2018-04-16 - Published: 2019-10-17 - Earliest claimed: 2018-04-16 - Assignees: Infiltrator Water Technologies, LLC - Applicants: Infiltrator Water Technologies, LLC - Inventors: Paul Holbrook - Web page: https://patentgrep.com/patent/US20190316340A1 ## CPC - E03F 1/002: {with disposal into the ground, e.g. via dry wells} - E03F 1/003: {via underground elongated vaulted elements} - E03F: SEWERS; CESSPOOLS ## Abstract A plastic chamber for collecting, receiving, detaining, or dispersing water when buried is provided and includes a support pillar having at least one pillar wall which defines a pillar cavity. Additionally, the chamber includes a plurality of chamber ends, a plurality of chamber side walls and a chamber top, wherein the chamber top includes a pillar opening and wherein the chamber defines a chamber internal cavity. It should be appreciated that the support pillar extends downwardly into the chamber internal cavity from the chamber top, wherein the pillar opening is communicated with the pillar cavity. The pillar cover is movably configurable between a first configuration and a second configuration to uncover and cover the least one pillar opening. ## Claims ### Claim 1 A molded plastic chamber for collecting, receiving, detaining, or dispersing water when buried, comprising: a support pillar, wherein the support pillar includes a pillar wall which defines a pillar cavity; a plurality of chamber ends including a chamber first end and a chamber second end separated along a lengthwise direction by a chamber length; a plurality of chamber side walls including a first chamber side wall and a second chamber side wall separated along a widthwise direction by a chamber width which is perpendicular to the lengthwise direction; a chamber top, wherein the chamber top includes a centering tab, a retaining tab and a pillar opening and wherein the chamber top, plurality of chamber ends and plurality of chamber side walls define a chamber internal cavity, and wherein the support pillar is associated with the chamber top such that the pillar wall extends downwardly from the chamber top and such that the pillar opening is communicated with the pillar cavity; and a pillar cover, wherein the pillar cover defines a cover opening and is movably associated with the chamber top to be configurable between a first configuration and a second configuration, wherein when in the first configuration, the cover opening is communicated with the pillar cavity, and wherein when in the second configuration, the pillar opening is covered by the pillar cover. ### Claim 2 (depends on 1) The chamber of claim 1, wherein each of the first chamber side wall and second chamber side wall includes a plurality of peak corrugations which run transverse to the lengthwise direction of the chamber. ### Claim 3 (depends on 1) The chamber of claim 1, wherein each of the first chamber side wall and second chamber side wall includes a plurality of valley corrugations which run transverse to the lengthwise direction of the chamber. ### Claim 4 (depends on 1) The chamber of claim 1, further including a plurality of cover positioning tabs, wherein the plurality of cover positioning tabs are associated with the chamber top to be located on either side of the chamber top. ### Claim 5 (depends on 2) The chamber of claim 2, further including a plurality of cover positioning tabs, wherein the plurality of cover positioning tabs is associated with the chamber top to be located on the peak corrugations on either side of the chamber top. ### Claim 6 (depends on 1) The chamber of claim 1, wherein the pillar cover includes a centering slot, a retaining slot and a cover tab cavity, wherein the pillar cover is associated with the chamber top such that, when the pillar cover is in the first configuration, the retaining tab is located within the retaining slot, and when the pillar cover is in the second configuration, the centering tab is located within the centering slot and the retaining tab is located within the cover tab cavity. ### Claim 7 (depends on 1) The chamber of claim 1, wherein the pillar cover is slidably movable between the chamber first end and the chamber second end. ### Claim 8 (depends on 1) The chamber of claim 1, wherein the retaining tab is resiliently compressible between a compressed configuration and a decompressed configuration. ### Claim 9 (depends on 8) The chamber of claim 8, wherein when the pillar cover is configured in either the first configuration and the second configuration, the retaining tab is in the decompressed configuration, and wherein when the pillar cover is being configured between the first configuration and the second configuration, the retaining tab is compressed by the pillar cover to be in the compressed configuration. ### Claim 10 A plastic chamber for collecting, receiving, detaining, or dispersing water when buried, comprising: at least one support pillar, wherein the at least one support pillar includes at least one pillar wall which defines at least one pillar cavity; a plurality of chamber ends; a plurality of chamber side walls; a chamber top, wherein the chamber top includes at least one pillar opening and wherein the chamber top, plurality of chamber ends and plurality of chamber side walls define a chamber internal cavity, and wherein the at least one support pillar extends downwardly from the chamber top, and wherein the at least one pillar opening is communicated with the at least one pillar cavity; and a pillar cover, wherein the pillar cover defines at least one cover opening and is movably associated with the chamber top to be configurable between a first configuration and a second configuration, wherein when in the first configuration the at least one pillar cavity is associated with the at least one cover opening to be uncovered, and wherein when in the second configuration, the at least one pillar opening is covered by the pillar cover. ### Claim 11 (depends on 10) The chamber of claim 10, wherein each of the first chamber side wall and second chamber side wall includes a plurality of peak corrugations and valley corrugations which run transverse to the lengthwise direction of the chamber. ### Claim 12 (depends on 10) The chamber of claim 10, further including a plurality of cover positioning tabs, wherein the plurality of cover positioning tabs are associated with the chamber top to be located on either side of the chamber top. ### Claim 13 (depends on 11) The chamber of claim 11, further including a plurality of cover positioning tabs, wherein the plurality of cover positioning tabs is associated with the chamber top to be located on the peak corrugations on either side of the chamber top. ### Claim 14 (depends on 10) The chamber of claim 10, further comprising a centering tab located adjacent a first chamber end and a retaining tab located adjacent a second chamber end. ### Claim 15 (depends on 14) The chamber of claim 14, wherein the pillar cover includes a centering slot, a retaining slot and a cover tab cavity, wherein when the pillar cover is in the first configuration, the retaining tab is located within the retaining slot, and when the pillar cover is in the second configuration, the centering tab is associated with the centering slot and the retaining tab is located within the cover tab cavity. ### Claim 16 (depends on 10) The chamber of claim 10, wherein the pillar cover is slidably movable between the chamber first end and the chamber second end. ### Claim 17 (depends on 10) The chamber of claim 10, wherein the retaining tab is resiliently compressible between a compressed configuration and a decompressed configuration. ### Claim 18 (depends on 17) The chamber of claim 17, wherein when the pillar cover is configured in either the first configuration and the second configuration, the retaining tab is in the decompressed configuration, and wherein when the pillar cover is being configured between the first configuration and the second configuration, the retaining tab is compressed by the pillar cover to be in the compressed configuration. ### Claim 19 A method of implementing a leaching chamber having a hollow support pillar and a pillar cover configurable between a first configuration and a second configuration, the method comprising: obtaining the leaching chamber having the pillar cover, wherein the pillar cover is configured in the first configuration; nesting a like chamber with the leaching chamber such that the pillars of the like chamber are located within the pillar cavities of the leaching chamber; transporting and/or storing the leaching chamber and nested like chamber; denesting the leaching chamber and the like chamber; configuring the pillar cover between the first configuration and the second configuration; and locating the leaching chamber and/or like chamber within a hole and covering the leaching chamber and/or like chamber with soil. ### Claim 20 (depends on 19) The method of claim 19, wherein each of the hollow pillars define a pillar cavity and a pillar opening communicated with the pillar cavity, and wherein configuring the pillar cover between the first configuration and the second configuration includes covering and/or uncovering the pillar opening with the pillar cover.