EP 2167734 A1 20100331 - IMPROVED DRILLING DEVICE
Title (en)
IMPROVED DRILLING DEVICE
Title (de)
VERBESSERTE BOHRVORRICHTUNG
Title (fr)
DISPOSITIF DE FORAGE AMÉLIORÉ
Publication
Application
Priority
EP 2007054513 W 20070510
Abstract (en)
[origin: WO2008138390A1] Drilling device for in situ mixing of soil with a binder to form a pile in the ground, comprising a drivable shaft with a bottom end, pre-mixing means mounted at the bottom end of the shaft for loosening the soil, injection means for injecting the binder into the loosened soil, a bore-crown mounted on the shaft above the bottom end, which bore-crown is provided on at least a part of its periphery with cutting means, wherein the pre-mixing means for loosening the soil comprise at least one arm having a first and a second end, said first end being connected at one end to the bottom end, said second end lying at a distance of the bore-crown, the distance between the second end and the shaft being smaller than the radius of the bore-crown, wherein said at least one arm is provided with teeth.
IPC 8 full level
E02D 3/12 (2006.01)
CPC (source: EP)
E02D 3/126 (2013.01)
Citation (search report)
See references of WO 2008138390A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008138390 A1 20081120; AT E541991 T1 20120215; DK 2167734 T3 20120514; EP 2167734 A1 20100331; EP 2167734 B1 20120118
DOCDB simple family (application)
EP 2007054513 W 20070510; AT 07728965 T 20070510; DK 07728965 T 20070510; EP 07728965 A 20070510