Radial drilling link transmission and flex shaft protective cover
US11203901B2 · kind B2 · utility
0Cited by
53References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2018 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Jul 10, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for performing a radial drilling operation using a shaft are disclosed. The shaft can be flexible and can be made of a series of links, each of which can have a hexagonal or other suitable shape to impart a torque along the linkage. A cable system can be run through the middle of the links and can be resiliently tensioned to permit a different degree of flexure according to the amount of tension in the cable and resilient member. Accordingly, the shaft can be rigid, selectively permitted to flex, or can be brought back to a straight or at least a less-bent position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.