Mechanism and method for recovering material from the surface of a liquid body
US4142972A · kind A · utility
24Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | May 3, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B15/107
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Material such as an oil slick floating on a body of liquid, ordinarily water, is collected by a mechanism comprising an impeller beneath the liquid surface and a rotatable tubular element which together form a free vortex as the surface of the body of liquid that draws the material into a vortex pocket from which it can be pumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.