Drilling device and method for producing a drilling column in the soil
US7713002B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Nov 22, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D7/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a drilling device for producing a drilling column in the soil comprising a mast, a drill drive arranged on a carriage, which is movably supported along the mast, a drilling tube which can be driven in a rotating manner by the drill drive and is movable along the mast in order to produce a drill hole, and a tube hopper that is connected to the drilling tube and comprises a storage space for filling material to fill the drill hole during the extraction of the drilling tube. In accordance with the invention provision is made for the tube hopper to be arranged in the drilling direction above the drill drive and to be connected to the drilling tube. The invention further relates to a method for producing a drilling column in the soil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.