Corrugated stormwater chamber having sub-corrugations
US10253490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B11/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plastic arch-shape cross section corrugated stormwater chamber has a multiplicity of crest corrugations and valley corrugations which run transverse to its length. Sub-corrugations run along part or all of the arch-curve lengths of either crest corrugations or valley corrugations, or along both of them. A sub-corrugations are smaller in dimension than an associated crest corrugation or valley corrugation. Sub-corrugations may taper in width and depth and may taper to nothingness. A compound convex shape end cap, useful for closing off the ends of stormwater chambers, has substantially vertical corrugations with analogous sub-corrugations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.