EP 2350420 A4 20151118 - ROCK DRILLING DEVICE

Title (en)

ROCK DRILLING DEVICE

Title (de)

GESTEINSBOHRVORRICHTUNG

Title (fr)

DISPOSITIF DE FORAGE DE ROCHE

Publication

EP 2350420 A4 20151118 (EN)

Application

EP 09758569 A 20090529

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 4/18 (2006.01); E21B 4/00 (2006.01); E21B 7/00 (2006.01); E21B 7/04 (2006.01); E21B 23/00 (2006.01)

CPC (source: EP)

E21B 4/18 (2013.01); E21B 23/04115 (2020.05); E21D 3/00 (2013.01)

Citation (search report)

[XY] US 4700788 A 19871020 - LANGNER CARL G [US]
[XY] US 3088532 A 19630507 - KELLNER JACKSON M
[XY] SU 1514942 A1 19891015 - PROIZV OB SAMOKHODNOJ GORNOJ T [SU]
[XY] GB 1060002 A 19670222 - WOLFGANG EBELING
[X] WO 2005090739 A1 20050929 - WESTERN WELL TOOL INC [US], et al
[Y] WO 9801651 A1 19980115 - CTES L C [US], et al
[A] US 3604754 A 19710914 - KAMPF-EMDEN GERD, et al
[A] EP 0149528 A1 19850724 - BRITISH GAS CORP [GB]
[A] FR 2590622 A1 19870529 - CAMCO INC [US]
[A] EP 0110182 A2 19840613 - ADVANCED DRILLING CORP [US]
[A] WO 9521984 A1 19950817 - PREUSSAG ANLAGENBAU [DE], et al
See also references of WO 2009148322A1

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