Patent · US Active

Ground drilling device and method for drilling in soil

US11187046B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

TRACTO-TECHNIK GmbH & Co., KG · DE

Inventors

Rene Schrinner · Eslohe, DE
Stefan Hermes · Lennestadt, DE

Key dates

Filing date	Feb 6, 2020
Grant date	Nov 30, 2021
Priority date	—
Expiry date	Feb 6, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/042
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A ground drilling device for drilling in soil by means of a drill string, wherein the ground drilling device comprises a drilling carriage and a sled movable in translation on the drilling carriage, and on the sled there is arranged a holder a) for the screwed connection of a rod section to the drill string, or b) for the screwed detachment of a rod section from the drill string, wherein the holder can move in translation relative to the sled in order to compensate for a change in the position of the holder caused by the screwing process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.