Patent · US Active

Self-propelled drilling head

US11346155B2 · kind B2 · utility

0Cited by

4References

8Claims

0Family size

Assignee

TRACTO-TECHNIK GmbH & Co., KG · DE

Inventor

Meinolf Rameil · Lennestadt, DE

Key dates

Filing date	Jul 17, 2020
Grant date	May 31, 2022
Priority date	—
Expiry date	Jul 17, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/62
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A self-propelled drilling head for drilling in soil by means of a multi-stage method comprises the drilling head having a housing and a drilling head tip arranged in the housing, and a spacer provided on the drilling head tip, by means of which the drilling head tip is in contact with the housing in order to change the multi-stage method to a method with a reduced number of stages.

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