EP 2938804 A4 20161102 - UNDERREAMER FOR INCREASING A BORE DIAMETER
Title (en)
UNDERREAMER FOR INCREASING A BORE DIAMETER
Title (de)
RÄUMER ZUR ERHÖHUNG EINES BOHRDURCHMESSERS
Title (fr)
ELARGISSEUR PERMETTANT D'AGRANDIR LE DIAMÈTRE D'UN ALÉSAGE
Publication
Application
Priority
- US 201261746372 P 20121227
- US 201361921050 P 20131226
- US 2013078078 W 20131227
Abstract (en)
[origin: WO2014106102A1] An underreamer for increasing the diameter of a bore. The underreamer includes a substantially cylindrical body having an axial bore therein. A mandrel may extend axially through the axial bore. One or more cutter blocks are movably coupled to the body. A ratio of a height of the cutter block to a diameter of the body is between about 0.35:1 and about 0.50:1.
IPC 8 full level
E21B 10/32 (2006.01)
CPC (source: EP US)
E21B 10/322 (2013.01 - EP US)
Citation (search report)
- [I] US 2012298423 A1 20121129 - CRUICKSHANK BRIAN [US], et al
- [I] US 4282942 A 19810811 - LONGMORE THOMAS L
- [A] US 2011127044 A1 20110602 - RADFORD STEVEN R [US], et al
- [A] US 2005241856 A1 20051103 - LASSOIE JEAN-PIERRE [BE], et al
- [A] WO 2004101943 A2 20041125 - TESCO CORP [CA], et al
- [A] GB 2401384 A 20041110 - SMITH INTERNATIONAL [US]
- [A] WO 03102354 A1 20031211 - TESCO CORP [CA], et al
- [A] US 4565252 A 19860121 - CAMPBELL THOMAS R [US], et al
- [A] US 4354560 A 19821019 - JOHNSON GARY R
- See references of WO 2014106102A1
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 2014106102 A1 20140703; BR 112015015771 A2 20170829; EP 2938804 A1 20151104; EP 2938804 A4 20161102; MX 2015008228 A 20150916; MX 364341 B 20190423
DOCDB simple family (application)
US 2013078078 W 20131227; BR 112015015771 A 20131227; EP 13868680 A 20131227; MX 2015008228 A 20131227