Torque transfer arrangement and method
US7857045B2 · kind B2 · utility
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1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2008 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Oct 8, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A torque transfer arrangement includes a relatively immobile construct; a relatively mobile construct. The relatively mobile construct is radially adjacent the relatively immobile construct. One or more torque body assemblies are mounted to the relatively mobile construct. The assemblies are radially responsive to applied hydraulic pressure to contact a surface of a separate structure and transmit torque from the arrangement to the separate structure. A method is included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.