Offshore drilling structure
US4037424A · kind A · utility
36Cited by
5References
26Claims
0Family size
Inventor
Key dates
| Filing date | Jun 23, 1976 |
| Grant date | Jul 26, 1977 |
| Priority date | — |
| Expiry date | Jun 23, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2211/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An offshore drilling structure of the semi-submersible type wherein holes connect a recessed area in the bottom of the floatable hull with the top of the hull, and reversibly acting thrusters are mounted within the holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.