IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0073953
(2011-03-28)
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등록번호 |
US-8322948
(2012-12-04)
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발명자
/ 주소 |
- Moore, Jr., Roy E
- Coppes, Bryan J.
- Hallahan, Dennis
- Cardillo, Christopher
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
25 |
초록
▼
A plastic leaching chamber has an arch shape cross section, corrugations, and one or more hollow pillars extending downwardly within the interior of the chamber, to support the top of the chamber when the chamber is under load during use. Chambers nest within one another to form a stack of chambers
A plastic leaching chamber has an arch shape cross section, corrugations, and one or more hollow pillars extending downwardly within the interior of the chamber, to support the top of the chamber when the chamber is under load during use. Chambers nest within one another to form a stack of chambers for transport or storage. Chambers have peak corrugations which are substantially wider than the intervening valley corrugations. Chambers having different widths and profiles have common size connectors.
대표청구항
▼
1. A molded plastic chamber for receiving and dispersing water when buried in soil, comprising: (a) a first end and a second end separated along a lengthwise direction;(b) opposing side base flanges, running lengthwise and spaced apart in a widthwise direction, having portions substantially lying in
1. A molded plastic chamber for receiving and dispersing water when buried in soil, comprising: (a) a first end and a second end separated along a lengthwise direction;(b) opposing side base flanges, running lengthwise and spaced apart in a widthwise direction, having portions substantially lying in a base plane;(c) a concave chamber wall, having corrugations running in said widthwise direction, the wall running from the one base flange to the opposing side base flange, thereby defining a concave chamber interior; and,(d) one or more pillars, each pillar comprising a pillar wall which (i) is integrally connected with the concave chamber wall at the perimeter of a hole in the concave chamber wall;(ii) projects downwardly into the concave interior of the chamber;(iii) tapers inwardly in the downward direction;(iv) terminates at a pillar base, wherein at least a portion of the base lies in said base plane; and,(v) surrounds a hollow space which is in communication with the space above the chamber. 2. The chamber of claim 1 further comprising a pair of end walls, each end wall connected to said concave wall at one lengthwise end of the chamber, and at least partially closing off the end of the chamber. 3. The chamber of claim 2 wherein said pillar base and said opening extend lengthwise along at least half the length of the chamber. 4. The chamber of claim 3 wherein said pillar base and said opening extend lengthwise to proximity of the ends of the chamber. 5. The chamber of claim 1, wherein said at least one pillar is located midway between the opposing side base flanges, in combination with a dosing pipe for delivering water to the chamber, the dosing pipe suspended from said concave chamber wall and running lengthwise within the concave chamber interior at a position which is offset from the lengthwise centerline of the chamber and adjacent said at least one pillar. 6. The chamber of claim 1 wherein (a) the total footprint bearing area of said one or more pillars is between 4 and 15 percent of the total bearing area of the chamber; (b) the total footprint bearing area of the chamber divided by the effective length of the chamber is at least 20 square inches per lineal foot; (c) the open base area divided by the effective length exceeds 2.2 square feet per lineal foot; and (d) the chamber volume divided by the effective length exceeds 0.9 cubic feet per lineal foot. 7. The chamber of claim 1 wherein the chamber is molded of polyolefin plastic and has a weight of less than 2.8 pounds per foot of length and a leaching area of at least 428 pounds per square inch per foot of length. 8. A plastic leaching chamber having an arch shape cross section, for receiving and dispersing water when buried beneath the surface of soil, which comprises: opposing side base flanges, spaced apart on either side of the lengthwise vertical center-plane of the chamber, for providing bearing area to support the chamber during use, wherein the space between the opposing side base flanges provides for leaching area beneath the chamber during use;opposing sidewalls, each sidewall running upwardly and inwardly from a base flange and having a plurality of perforations;a top, connecting the upper ends of the sidewalls; wherein the sidewalls and top form an arch shape wall which defines a concave chamber interior, said arch shape wall having peak corrugations and valley corrugations alternately running transverse to the length of the chamber; and,one or more hollow pillars, spaced apart inwardly from the lengthwise ends of the chamber, each pillar extending downwardly into the chamber interior from the top of the chamber, and each pillar comprising a pillar base having an elevation which is proximate the elevation of the plane of said base flanges. 9. The chamber of claim 8 wherein the one or more hollow pillars are spaced apart inwardly from said opposing sidewalls. 10. The chamber of claim 9, wherein said base flanges have C-shape configurations in said base plane; further comprising an end wall at each end of the chamber, each end wall running upwardly from a base flange and connected to a sidewall. 11. The chamber of claim 9 wherein each of said one or more pillars has an open upper end and extends downwardly from an opening at the top of the chamber; and, wherein each pillar tapers inwardly in the downward direction. 12. The chamber of claim 11 wherein the chamber has a multiplicity of pillars spaced apart lengthwise along the chamber; and, wherein said opening at the top of the chamber interrupts more than one of said peak and valley corrugations. 13. The chamber of claim 11, wherein said chamber is nestable within another like chamber; and wherein each pillar is shaped so that the chamber is removable from the top of a stack of nested identical chambers by upwardly lifting one base flange, to thereby rotate the chamber in a plane which is transverse to said lengthwise center plane. 14. The chamber of claim 11 wherein the chamber wall and pillar are made of a single piece of injection molded plastic; wherein at least one pillar base has one or more openings lying in a plane parallel to said base plane; wherein said perforations comprise slots spaced apart horizontally and vertically on a plurality of peak corrugations; and, wherein the flanges have C-shape configurations in said base plane; further comprising a dome shape connector at each lengthwise end of the chamber, for forming underlapping-overlapping connections with like chambers. 15. The chamber of claim 8 further comprising an end wall at each end of the chamber, connecting said opposing sidewalls. 16. The chamber of claim 8 further comprising an end wall at each end of the chamber, connecting said opposing sidewalls. 17. The chamber of claim 8 wherein each of said one or more pillars has an open upper end and extends downwardly from an opening at the top of the chamber; and, wherein each pillar tapers inwardly in the downward direction. 18. The chamber of claim 8 wherein the chamber meets the testing requirements for an H-10 Load Rating of the International Association of Plumbing and Mechanical Officials, Material and Property Standard for Plastic Leaching Chambers IAPMO PS 63-2005. 19. A leaching system for treating wastewater, comprised of a multiplicity of the chambers of claim 18. 20. A plastic leaching chamber having an arch shape cross section, for receiving and dispersing water when buried, which chamber comprises: opposing side base flanges, for providing bearing area to support the chamber during use;opposing sidewalls, each sidewall running upwardly and inwardly from a base flange;a top, connecting the upper ends of the sidewalls;the interconnected combination of opposing sidewalls and top forming an arch-curve wall which defines a concave chamber interior;a plurality of alternating peak corrugations and valley corrugations running in said arch- curve wall, transverse to the length of the chamber, from proximity of one base flange to proximity of the opposing side base flange; and,one or more pillars, each pillar having a pillar wall extending downwardly into the chamber interior from the top portion of the arch-curve wall of the chamber, and each pillar comprising a pillar base having an elevation which is proximate the elevation of the plane of said base flanges. 21. The chamber of claim 20 wherein the peak corrugations decrease in width and the valley corrugations increase in width with elevation from the base flanges; and wherein, when measured along the chamber length in a first horizontal plane which is at an elevation proximate the upper surfaces of said opposing side base flanges, the width of each peak corrugation within said plurality is at least about 2 times greater than the width of an adjacent valley corrugation. 22. The chamber of claim 20 wherein the base of each pillar is substantially coplanar with the plane of the base flanges. 23. The chamber of claim 20 herein each pillar is integral with said arch curve wall; wherein the upper end of the pillar wall surrounds the periphery of a hole in said top portion; wherein the pillar wall tapers inwardly so that the pillar cross section decreases in the downward direction. 24. The chamber of claim 23 wherein each pillar has a vertically running corrugation or sponson. 25. The chamber of claim 23 wherein each pillar base comprises a portion running parallel to said base plane; the portion having one or more through holes. 26. The chamber of claim 23 wherein the upper end of the pillar interrupts a peak corrugation or a valley corrugation or both; wherein the pillar and the interrupted portions of said corrugations have contouring sufficient to enable a first nested chamber to be lifted from a second underlying nested identical chamber, by rotatably lifting the first chamber upwardly by one base flange 27. The chamber of claim 23 wherein said one or more pillars is located substantially along the centerline of the chamber. 28. The chamber of claim 23 comprising a multiplicity of pillars, wherein the pillars are symmetrically disposed on either side of the lengthwise center plane of the chamber. 29. The chamber of claim 23 wherein each pillar has a width which is greater than the pillar length. 30. The chamber of claim 20 having a pillar with a length that extends from proximity of one end to proximity of the opposing end; wherein the base flanges have C-shape configurations in said base plane. 31. The chamber of claim 30 wherein the chamber wall and pillar are made of a single piece of injection molded thermoplastic; wherein at least the sidewall portions of said peak corrugations have a plurality of horizontally and vertically spaced apart slot perforations. 32. The chamber of claim 30 wherein the bearing area of all the pillar bases is equal or less than about 2 percent of the leaching area of the chamber. 33. The chamber of claim 30, wherein the chamber has an effective length of about 4 feet, a leaching area of at least about 428 square inches per foot of effective length, and a weight of less than about 2.8 pounds per foot of effective length. 34. The chamber of claim 30 made of polyethylene, polypropylene or polyolefin, having at least 160 square inches of leaching area per pound of plastic; and, having a ratio of storage volume to plastic volume of at least about 20 to 1. 35. The chamber of claim 20 wherein the bearing area of all the pillar bases is between 4 and 25 percent of the total bearing area of the chamber. 36. In a plastic leaching chamber having an arch shape cross section, for receiving and dispersing water when buried; wherein the chamber comprises opposing side base flanges, wherein the space between the opposing side base flanges providing for leaching area beneath the chamber during use; wherein opposing sidewalls run upwardly and inwardly from opposing side base flanges to a top which connects the upper ends of the sidewalls; wherein the opposing sidewalls have a plurality of perforations; wherein the interconnected sidewalls and top form an arch curve wall which defines a concave chamber interior; wherein a plurality of alternating peak corrugations and valley corrugations in the arch curve wall run transverse to the length of the chamber; the improvement which comprises: at least one hollow pillar, integral with the top of the chamber, having a wall which extends downwardly into the concave chamber interior from the periphery of a hole in the wall of the chamber, the pillar comprising a pillar base for bearing on soil beneath the chamber during use.
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