Cementing swivel and retainer arm assembly and method
US8491013B2 · kind B2 · utility
16Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2007 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Feb 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32893
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cementing swivel includes an outer stationary member having a cement port, an inner rotating member with a bore therethrough, and a torque indicating member coupled to the outer stationary member and configured to provide a visual indication that a predetermined torque load has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.