Electrically insulated threaded connection
US11976758B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2023 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Nov 29, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/0285
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrical insulated threaded connection includes a conductive box with a plurality of internal threads, a conductive pin with a plurality of external threads, and a double-threaded electrical insulator sleeve disposed between the conductive pin and box. The double-threaded electrical insulator sleeve comprises a plurality of external threads that mate with the plurality of internal threads of the conductive box and a plurality of internal threads that mate with the plurality of external threads of the conductive pin. In certain embodiments, the double-threaded electrical insulator sleeve fills a full volume between the plurality of internal threads of the conductive box and the plurality of external threads of the conductive pin, and there are no voids or pockets between any of the mating threads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.