Bit adapter and tube return for vertizontal geothermal loop
US8529156B2 · kind B2 · utility
11Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2010 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A drill rod combination for creating a closed loop geothermal hole in the ground. The heat exchange tube is positioned in the hole simultaneously with the creation of the hole and is mounted to the drill rod. A rudder on the heat exchange tube limits twisting of the tube. An adaptor mounted to the outer end of the sonde housing has the drill bit mounted on its distal end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.