Global Patent Index - EP 2799659 A1

EP 2799659 A1 20141105 - Percussive rock drill bit

Title (en)

Percussive rock drill bit

Title (de)

Gesteinsschlagbohrerspitze

Title (fr)

Taillant de fleuret à percussion

Publication

EP 2799659 A1 20141105 (EN)

Application

EP 13166428 A 20130503

Priority

EP 13166428 A 20130503

Abstract (en)

A percussive rock drill bit comprising a head provided at one end of a rearwardly projecting skirt. The head comprises an outer collar that defines, in part, a rearwardly projecting recess formed in the forwardmost region of the head. Peripheral gauge buttons are provided at the collar to surround side and front facing buttons formed at the head recess. The drill bit is effective to provide stabilised cutting to minimise lateral deflection.

IPC 8 full level

E21B 10/36 (2006.01)

CPC (source: EP US)

E21B 10/36 (2013.01 - EP US); E21B 10/40 (2013.01 - US)

Citation (applicant)

Citation (search report)

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)

EP 2799659 A1 20141105; AU 2014261700 A1 20151112; BR 112015027538 A2 20170912; CA 2910607 A1 20141106; CN 105264163 A 20160120; KR 20160003230 A 20160108; MX 2015015104 A 20160211; PE 20151916 A1 20151226; RU 2015151569 A 20170608; US 2016090791 A1 20160331; WO 2014177364 A1 20141106

DOCDB simple family (application)

EP 13166428 A 20130503; AU 2014261700 A 20140411; BR 112015027538 A 20140411; CA 2910607 A 20140411; CN 201480024992 A 20140411; EP 2014057389 W 20140411; KR 20157034202 A 20140411; MX 2015015104 A 20140411; PE 2015002325 A 20140411; RU 2015151569 A 20140411; US 201414888506 A 20140411