Independent unit for the collection and upward transfer of nodules which rest on an underwater bed
US4196531A · kind A · utility
5Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Feb 22, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C50/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The end of at least one cable is connected to a float and the other end exerts a tractive effort on one or a number of collecting vehicles which land on the bottom at predetermined points with respect to the point of landing of the ballast which is provided with a pile, anchored in the sea bed, then freed from the float and the vehicle. Means initially secured to the ballast and then detached therefrom serve to convert the upward motion of the float to a displacement of the collecting vehicle along the sea floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.