Well tool
US4124245A · kind A · utility
10Cited by
2References
28Claims
0Family size
Inventor
Key dates
| Filing date | Nov 11, 1976 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Nov 11, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B31/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well tool of the type comprising a plurality of radially extendable and retractable gripping elements and deflecting means for radially moving the gripping elements by longitudinal movement with respect thereto. The tool comprises a camming mechanism for converting longitudinal motion to rotary motion in discreet increments for aligning and offsetting stop surfaces on the tool. The camming mechanism is characterized in that the engageable camming surfaces on each of two relatively movable members of the camming mechanism extend longitudinally and circumferentially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.