EP 2231994 A2 20100929 - ORIENTED PYRAMID INSERTS
Title (en)
ORIENTED PYRAMID INSERTS
Title (de)
AUSGERICHTETE PYRAMIDENFÖRMIGE EINSÄTZE
Title (fr)
INSERTS PYRAMIDAUX ORIENTÉS
Publication
Application
Priority
- US 2008088014 W 20081222
- US 1624307 P 20071221
Abstract (en)
[origin: WO2009086302A2] An earth boring drill bit comprising cones, each cone having rows of inserts, where the inserts are in the form of a pyramid with four sides. The insert includes ridges at the juncture of each adjacent side. The ridges extend to the top of the insert and meet at a crest. Oppositely disposed ridges on the insert lie substantially in the same plane, thereby forming two planes intersecting on the crest. The two planes are substantially perpendicular. The inserts are arranged on the cone such that one plane is substantially parallel with the insert row, and the other is substantially parallel with the cone axis.
IPC 8 full level
E21B 10/08 (2006.01); E21B 10/16 (2006.01); E21B 10/52 (2006.01)
CPC (source: EP)
E21B 10/16 (2013.01); E21B 10/52 (2013.01)
Citation (search report)
See references of WO 2009086302A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009086302 A2 20090709; WO 2009086302 A3 20090903; CA 2708651 A1 20090709; EP 2231994 A2 20100929
DOCDB simple family (application)
US 2008088014 W 20081222; CA 2708651 A 20081222; EP 08866510 A 20081222