EP 0886034 A3 19991103 - Drilling device
Title (en)
Drilling device
Title (de)
Bohrvorrichtung
Title (fr)
Dispositif de forage
Publication
Application
Priority
DE 19725628 A 19970617
Abstract (en)
[origin: EP0886034A2] Bores are produced in the ground, are expanded, and pipelines in the ground are destroyed and replaced using an arrangement of a feed and rotary drive and a plug-in coupling (12) attached to the drive, comprising a chuck (14) and a locking piece (15) at the end of a length of rod. Preferably the chuck has a radial aperture for insertion of the locking piece and is provided with a cup (34) pointing in the direction of the axis of rotation. A fluid line (35) may open into the cup. The length of rod preferably consists of a piece of pipe.
IPC 1-7
IPC 8 full level
E21B 7/30 (2006.01); E21B 19/08 (2006.01); E21B 19/086 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP US)
E21B 7/30 (2013.01 - EP US); E21B 19/086 (2013.01 - EP US)
Citation (search report)
- [X] DE 1025807 B 19580313 - NUESSE & GRAEFER K G MASCHF
- [A] DE 2704154 A1 19780803 - INTER WOOD MASCHINEN
- [DA] DE 4113422 A1 19921029 - KLEMM BOHRTECH [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0886034 A2 19981223; EP 0886034 A3 19991103; EP 0886034 B1 20040512; CA 2240770 A1 19981217; DE 19725628 C1 19990304; DE 59811358 D1 20040617; PL 326856 A1 19981221; US 6267187 B1 20010731
DOCDB simple family (application)
EP 98110952 A 19980616; CA 2240770 A 19980616; DE 19725628 A 19970617; DE 59811358 T 19980616; PL 32685698 A 19980617; US 9797498 A 19980616