Slip-type elevator adapter
US9518431B2 · kind B2 · utility
2Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Nov 24, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and apparatus for adapting an elevator for use with a tubular are provided. The apparatus includes one or more axial extensions configured to engage one or more slip bodies of the elevator. The one or more axial extensions include a radial contact surface configured to slide along the tubular and an axial engagement surface configured to bear on an upset of the tubular. The one or more axial extensions are flexible such that the radial contact surface is radially displaceable with respect to the tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.