Arrangement for underwater drilling of foundations
US4770255A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Apr 16, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/001
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention concerns an arrangement for underwater drilling of foundations, comprising at least one cutter (27) and one pump (29) for discharge of excavated material, and hydraulic motors for driving the said cutter and the said pump. It comprises an hydraulic turbine (16) capable of functioning by means of a fluid such as sea water, and an hydraulaic plant driven by the said turbine and designed for feeding the said hydraulic motors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.