EP 1629178 A1 20060301 - ROCKBOLT
Title (en)
ROCKBOLT
Title (de)
GEBIRGSANKER
Title (fr)
BOULON D'ANCRAGE
Publication
Application
Priority
- AU 2004000736 W 20040603
- AU 2003902774 A 20030603
- AU 2004900773 A 20040216
Abstract (en)
[origin: WO2004106700A1] A rock bolt (10) comprising first and second elongate members (11,12) is disclosed. The first elongate member comprises a first end (13) adapted to penetrate rock, and a second end (14) adapted to provide attachment for actuating means. The first elongate member is disposed at least partially, longitudinally inside the second elongate member. The second elongate member can be adapted for transverse exansion along at least a portion of its length in order to anchor the rock bolt into position. A cavity can be formed between the first and second elongate members extending between the first and second ends of the first elongate member. Methods of drilling with rock bolts according to the invention are also disclosed.
IPC 1-7
IPC 8 full level
E21D 21/00 (2006.01)
CPC (source: EP US)
E21D 21/0033 (2013.01 - EP US); E21D 21/0053 (2016.01 - EP US); E21D 21/008 (2013.01 - EP US)
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 PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004106700 A1 20041209; CA 2523185 A1 20041209; EP 1629178 A1 20060301; EP 1629178 A4 20070620; JP 2006526718 A 20061124; NO 20055186 D0 20051104; NO 20055186 L 20060217; RU 2005141565 A 20060910; RU 2343287 C2 20090110; US 2007269274 A1 20071122
DOCDB simple family (application)
AU 2004000736 W 20040603; CA 2523185 A 20040603; EP 04735851 A 20040603; JP 2006508080 A 20040603; NO 20055186 A 20051104; RU 2005141565 A 20040603; US 55946804 A 20040603