Method and apparatus for cleaning contaminated soil
US5027721A · kind A · utility
14Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1990 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Sep 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A portable machine for sanitizing soil, particularly that contaminated with petroleum products, including a closed main chamber including vertically spaced augers (26,28,30) which agitate the soil while moving it into position to fall in parallel sheets after it strikes a separation bar 52. A burner 44 generates heat which passes through the falling soil driving off the petroleum which is then burned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.