Tong system for use on a drilling installation and clamping block of such a tong system
US10287832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jan 6, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/163
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a tong system for connecting a drill rod element (12) to an often stationary drill rod element (12) or for disconnecting a drill rod element from another drill rod element (12), wherein the tong system comprises at least two clamping blocks (20, 22), which face each other and are intended to fasten the tong system to the stationary drill rod element (12), and wherein at least one clamping block (20, 22) comprises movable means (30, 32) having a centering contour, which movable means (30, 32) are effective for adjusting the tong system in relation to the stationary drill rod element (12). The invention further relates to a clamping block (20, 22) as a component of such a tong system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.