Rotary vector gear for use in rotary steerable tools
US7467673B2 · kind B2 · utility
14Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/067
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary vector gear for controlling longitudinal axis offset about a central longitudinal axis is disclosed. The device uses single rotary motion through a rotary vector gear to produce hypotrochoidic offset similar to a flower petal and is capable or ready return to zero offset. The device may be used in downhole rotary steerable oil and gas drilling tools and in computer controlled milling machines for providing controlled offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.