EP 4051860 A4 20231115 - A METHOD AND APPARATUS FOR DRILLING AND POSITIONING A COLLAR SUPPORT SLEEVE INTO A BLAST HOLE
Title (en)
A METHOD AND APPARATUS FOR DRILLING AND POSITIONING A COLLAR SUPPORT SLEEVE INTO A BLAST HOLE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BOHREN UND POSITIONIEREN EINES KRAGENTRÄGERS IN EINEM SPRENGRLOCH
Title (fr)
PROCÉDÉ ET APPAREIL POUR PERCER ET POSITIONNER UN MANCHON DE SUPPORT DE COLLIER DANS UN TROU DE MINE
Publication
Application
Priority
- AU 2019904101 A 20191030
- AU 2020901360 A 20200430
- AU 2020051176 W 20201029
Abstract (en)
[origin: WO2021081592A1] The invention provides an apparatus and method for preventing surrounding loose rock fragments from falling or collapsing into a bore hole during drilling and immediately after removal of a drill string from the bore hole. The apparatus includes bore hole sleeve for a bore hole drill, the sleeve including a tube member adapted to be coupled to a mast of a mobile bore hole drill and to be positioned within the collar region of a bore hole, the tube member including a longitudinal internal passage for receiving a drill string therethrough and an external surface for facing outwardly against a wall of the bore hole.
IPC 8 full level
E21B 7/00 (2006.01); E21B 7/02 (2006.01); E21B 17/00 (2006.01); E21B 41/00 (2006.01); E21B 43/10 (2006.01)
CPC (source: AU EP US)
E21B 7/025 (2013.01 - EP US); E21B 17/16 (2013.01 - US); E21B 41/0021 (2013.01 - AU EP US); E21B 43/108 (2013.01 - EP); F42D 3/04 (2013.01 - AU); E21B 1/00 (2013.01 - AU); E21B 3/00 (2013.01 - AU)
Citation (search report)
- [XI] WO 2015097575 A2 20150702 - CT BADAN KOSM POLSKIEJ AKADEMII NAUK [PL], et al
- [XI] US 4166508 A 19790904 - BERG ARIE P VAN DEN [NL]
- [XI] DE 1189492 B 19650325 - ECKART CRONJAEGER
- [A] WO 2019014716 A1 20190124 - TBS MINING SOLUTIONS PTY LTD [AU]
- See also references of WO 2021081592A1
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
DOCDB simple family (publication)
WO 2021081592 A1 20210506; AU 2020373299 A1 20220602; BR 112022008153 A2 20220816; CA 3158178 A1 20210506; CL 2022000977 A1 20230113; CN 114651109 A 20220621; CO 2022006420 A2 20220531; EP 4051860 A1 20220907; EP 4051860 A4 20231115; MX 2022004998 A 20221109; US 2024102363 A1 20240328; ZA 202204990 B 20230329
DOCDB simple family (application)
AU 2020051176 W 20201029; AU 2020373299 A 20201029; BR 112022008153 A 20201029; CA 3158178 A 20201029; CL 2022000977 A 20220418; CN 202080077671 A 20201029; CO 2022006420 A 20220516; EP 20881244 A 20201029; MX 2022004998 A 20201029; US 202017768417 A 20201029; ZA 202204990 A 20220506