Top drive powered differential speed rotation system and method
US9169702B2 · kind B2 · utility
0Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19637
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Certain embodiments include a system having a first grip configured to couple to a first tubular, a second grip configured to couple to a second tubular, where the first and second tubulars are connected by a threaded connection, and a gear assembly coupling the first and second grips, wherein the gear assembly has a speed ratio greater than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.