Chuck spider
US9677352B2 · kind B2 · utility
1Cited by
12References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 1, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An assembly to grip a tubular member in a wellbore includes a main body, a plurality of jaw assemblies, and a cover plate to retain the jaw assemblies within the main body. The main body includes a chuck ring and at least one rotation assembly. The plurality of jaw assemblies are configured to simultaneously engage the tubular member in the wellbore as the chuck ring is rotated in a first direction about an axis of the main body by the at least one rotation assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.