Cryogenic beach cleaner
US4043140A · kind A · utility
20Cited by
4References
4Claims
0Family size
Inventors
Key dates
| Filing date | May 12, 1975 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | May 12, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/001
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and machine are disclosed herein for cleaning and restoring sand beaches which have become contaminated by oil spills. The machine travels on the beach and sprays liquid nitrogen onto the contaminated area, thereby solidifying the oil and sand mixture so that the mixture can be separated from the underlying uncontaminated sand and be efficiently removed from the beach and transported to a remote site for disposal or further treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.