EP 0886034 B1 20040512 - 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)
Designated contracting state (EPC)
DE GB
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