EP 1944461 A2 20080716 - Reinforcing overlay for matrix bit bodies
Title (en)
Reinforcing overlay for matrix bit bodies
Title (de)
Verstärkende Deckschicht für Matrixbitkörper
Title (fr)
Recouvrement de renforcement pour corps de trépan matriciel
Publication
Application
Priority
US 65086007 A 20070108
Abstract (en)
A drill bit that includes a matrix bit body having a reinforcing overlay thereon and having at least one blade thereon; at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; and a braze material disposed between the at least one cutter and the at least one cutter pocket, wherein the reinforcing overlay comprises carbide particles and at least one binder and has a melting point greater than a melting point of the braze material is disclosed.
IPC 8 full level
E21B 10/54 (2006.01); E21B 10/55 (2006.01)
CPC (source: EP US)
E21B 10/54 (2013.01 - EP US); E21B 10/55 (2013.01 - EP US)
Designated contracting state (EPC)
GB
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1944461 A2 20080716; EP 1944461 A3 20091125; US 2008164070 A1 20080710
DOCDB simple family (application)
EP 07120761 A 20071115; US 65086007 A 20070108