Patent · US Active

Drilling apparatus

US9657524B2 · kind B2 · utility

2Cited by

3References

11Claims

0Family size

Assignee

Keller Holding GmbH · DE

Inventors

Kuno Klein · Offenburg, DE
Alexandra Baumert · Offenburg, DE

Key dates

Filing date	Mar 19, 2014
Grant date	May 23, 2017
Priority date	—
Expiry date	May 21, 2035

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/024
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a small drilling apparatus for producing bores in the ground, comprising, a main carrier 4, a telescopic mast 7 with an adjustable length, a rotating device 6, by which the telescopic mast 7 is pivotable relative to the main carrier 4 around a vertical axis A1.

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