Hollow drill rod for slurry application in a geothermal loop
US9291286B2 · kind B2 · utility
1Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2034 |
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. A combination hollow drill rod and slurry dispenser is connected to a slurry pump and direct slurry through the rod and dispenser while within the geothermal hole. The slurry exits the dispenser surrounding a heat exchange tube removably mounted to the dispenser and left in the hole when the drill rod and dispenser are withdrawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.