Ground drilling device, system comprising the ground drilling device, method for producing a ground drilling device, and use of a ground drilling device
US11391092B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Feb 10, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Feb 10, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ground drilling device with a drivetrain for rotating a drill string, wherein at least one section of the drivetrain is configured to form a channel between a force transmission element of the drivetrain and the drill string, wherein the channel projects through the force transmission element and the force transmission element may be driven radially in the drivetrain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.