EP 2921640 A1 20150923 - Protection cage, rock drilling unit, levelling arrangement and method for rock drilling
Title (en)
Protection cage, rock drilling unit, levelling arrangement and method for rock drilling
Title (de)
Schutzkäfig, Gesteinsbohreinheit, Nivellieranordnung und Verfahren zum Steinbohren
Title (fr)
Cage de protection, unité de forage de roches, système de nivellement et procédé de forage de roches
Publication
Application
Priority
EP 14160473 A 20140318
Abstract (en)
The invention relates to a protection cage, a levelling arrangement and a method for rock drilling. The protection cage (13) is intended to encapsulate a mining device. The cage (13) has a grid-like configuration (24) whereby it comprises several mesh openings (27) and intermediate portions (30) between them. The intermediate portions are in transverse direction as compared to a longitudinal axis of the protection cage. In the levelling arrangement and method the disclosed protection cage is being implemented.
IPC 8 full level
E21B 41/00 (2006.01); E21B 7/02 (2006.01)
CPC (source: EP)
E21B 7/02 (2013.01); E21B 41/0021 (2013.01)
Citation (search report)
- [XI] WO 2011051564 A1 20110505 - SANDVIK MINING & CONSTR OY [FI], et al
- [XI] US 2010237714 A1 20100923 - DITILLO ALESSANDRO [IT]
- [X] CA 2395963 A1 20040306 - TECHNI DRILL INC [CA]
- [A] WO 02070856 A1 20020912 - ATLAS COPCO ROCK DRILLS AB [SE], et al
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 14160473 A 20140318