Pre-cast drive down water separation pit system
US7497945B2 · kind B2 · utility
2Cited by
20References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jun 1, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D21/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A unitary or modular, pre-cast, drive-down pit system suitable for use in a heavy equipment wash installation. The completed pit collects runoff generated by the washing of heavy equipment such as construction, industrial, farming, or road-building equipment. The pre-cast concrete separation unit and separate wall sections have tongue and groove mating ends that facilitate assembling the pit and provide for sealing against leakage of water. The separation unit has up to four chambers: a primary solids collection section; a secondary solids settling chamber; a free oil separating section; and a pump water holding section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.