Inductive coupler for well tools
US5455573A · kind A · utility
79Cited by
4References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Dec 19, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2038/143
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An inductive coupling device for coaxially arranged tubular members where the members can be telescopically arranged and the liner member has a magnetic core assembly constructed from magnetic iron with cylinder sloped ends and the outer member has an annular magnetic assembly aligned with the core assembly. The tubular members are non-magnetic enclosures and together with a gap spacing define an effective air gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.