Mud energized electrical generating method and means
US4515225A · kind A · utility
53Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1982 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Jan 29, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling instrument adapted to be positioned in a conduit for the flow of mud. The instrument has a passage sealing a fluid from the mud. Means is responsive to energy derived from the mud for causing the sealed fluid to flow. An electrical generator derives energy from the flowing fluid to provide electrical energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.