EP 2350420 B1 20180221 - ROCK DRILLING DEVICE
Title (en)
ROCK DRILLING DEVICE
Title (de)
GESTEINSBOHRVORRICHTUNG
Title (fr)
DISPOSITIF DE FORAGE DE ROCHE
Publication
Application
Priority
- NO 2009000200 W 20090529
- NO 20082641 A 20080605
Abstract (en)
[origin: WO2009148322A1] A device for a rock drilling machine (1) for drilling of boreholes (2) in rock, where the rock drilling machine (1) comprises a drilling portion (4) and a string portion (6) which by means of joinable pipes (20) are connected to a support device on the outside of the borehole (2), and where the string portion (6) is provided with an anchor (8) comprising at least one against the borehole (2) preloadable and relative to the string portion (6) axially displaceable support shoe (30).
IPC 8 full level
E21B 4/00 (2006.01); E21B 4/18 (2006.01); E21B 7/00 (2006.01); E21B 7/04 (2006.01); E21B 23/00 (2006.01)
CPC (source: EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009148322 A1 20091210; EP 2350420 A1 20110803; EP 2350420 A4 20151118; EP 2350420 B1 20180221; NO 20082641 L 20091207; NO 333300 B1 20130429
DOCDB simple family (application)
NO 2009000200 W 20090529; EP 09758569 A 20090529; NO 20082641 A 20080605