Pipe manipulator
US4345864A · kind A · utility
46Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Mar 17, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for moving stands of pipe in a derrick having a powered turret mounted in a selected position relative to the derrick and a vertical leg supported and rotated by the turret. A powered dolly is mounted on the vertical leg and moves one end of a power arm to selected positions along the vertical leg. A pipe gripping head is mounted to the opposite end of the power arm. A scissor arm is rotatably connected at one end in mid-region of the power arm and at the other end to the vertical leg. As a consequence, the pipe gripping head moves reciprocally in a straight line to engage, move, and disengage stands of pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.