Arrangement in a pipe handling system
US5244329A · kind A · utility
23Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to an arrangement in a pipe handling system, especially for handling pipes (4P) in connection with a derrick 1A, wherein the arrangement comprises a tower (1) and two preferably individually controlled operating arms (2a, 2b). The pipe handling system operates favorably in connection with a finger board (4) in which all fingers (4a, 4n) are pointing towards the center of the pipe handling system and especially towards a disc-shaped locking unit (4R) mounted on the top of the tower (1), and in connection with a side-step retraction system designed for use with a top drive drilling system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.