EP 1359257 B1 20050706 - Drill and method for drilling the soil
Title (en)
Drill and method for drilling the soil
Title (de)
Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden
Title (fr)
Disposif et méthode pour forer dans le sol
Publication
Application
Priority
- DE 10219742 A 20020502
- DE 10301072 A 20030114
Abstract (en)
[origin: EP1359257A1] The yoke (20) connecting the three drill strings (7'-7''') together is cranked upward (22) at the center and has bearings (26) for the drill strings. There are cutting tools (9'-9''') at the tip of each drill string, and spiral flutes (11'-11''') carry the cut rock upward. The outer drill strings have spiral flutes (19'19'') above the bearings in the yoke. There are mixing paddles (14) on all three drill strings above the yoke.
IPC 1-7
IPC 8 full level
E02F 5/02 (2006.01); E02D 3/12 (2006.01); E02D 5/18 (2006.01)
CPC (source: EP)
E02D 3/126 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1359257 A1 20031105; EP 1359257 B1 20050706; AT E299205 T1 20050715; ES 2244857 T3 20051216; HK 1058954 A1 20040611; JP 2003328386 A 20031119; JP 3830460 B2 20061004; SG 102712 A1 20040326
DOCDB simple family (application)
EP 03009634 A 20030429; AT 03009634 T 20030429; ES 03009634 T 20030429; HK 04101663 A 20040305; JP 2003126950 A 20030502; SG 200302382 A 20030425