Sub for a pipe assembly and system and method for use of same
US10431998B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sub for a pipe assembly and system and method for use of the same are disclosed. In one embodiment, the sub includes a mandrel having a body section including an internal flow passage that extends generally axially through the mandrel from an upper connection end to a lower connection end. A battery charger is located within a recessed region within the mandrel. Capacitors include opposing spaced plates having contact segments thereon. An output power increasing, electrically resistive fluid is held within and partially fills an enclosed chamber. In response to movement of the sub, induced relative motion between the output power increasing, electrically resistive fluid and contact segments varies the fluid-contact segment contact within the enclosed chamber, thereby generating an electrical charge. An electronic circuit, which is coupled to the opposing spaced plates, is configured to transfer the electrical charge to a battery associated with the mandrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.