Leaching chamber having pillars
US8322948B2 · kind B2 · utility
5Cited by
27References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F1/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.