Title:
掘削装置および土木施工方法
Document Type and Number:
Japanese Patent JP5044682
Kind Code:
B2
Abstract:
The apparatus has a drill drive (10) for driving a drill string (1) in a rotating manner, and a rotary feedthrough (20) through which a construction material is passed from a construction material hose (6) into an interior of the drill string. The rotary feedthrough comprises a pair of line connections (21, 22) for the construction material hose and the drill string, where one of the line connections is rotatable relative to the other line connection. The feedthrough comprises a rotary device (30) for actively rotating the latter line connection relative to the former line connection. An independent claim is also included for a method for drilling ground.
Inventors:
Bauer Sebastian
Application Number:
JP2010186767A
Publication Date:
October 10, 2012
Filing Date:
August 24, 2010
Export Citation:
Assignee:
Bauer Maschinen Game Behr
International Classes:
E21B3/02
Domestic Patent References:
| JP5239983A | ||||
| JP59163639U | ||||
| JP2000110474A | ||||
| JP9053381A |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office