Invention Grant
- Patent Title: Cutters for fixed cutter bits
- Patent Title (中): 固定刀头刀片
-
Application No.: US12247959Application Date: 2008-10-08
-
Publication No.: US08833492B2Publication Date: 2014-09-16
- Inventor: Bala Durairajan , Carl M. Hoffmaster
- Applicant: Bala Durairajan , Carl M. Hoffmaster
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Osha Liang LLP
- Main IPC: E21B10/567
- IPC: E21B10/567 ; E21B10/55
Abstract:
A PDC cutter includes a body formed from a substrate material, an ultrahard layer disposed on the body, and a concave cutting face perpendicular to an axis of the body. A PDC cutter includes a body formed from a substrate material, an ultrahard layer disposed on the body, and a non-planar cutting face perpendicular to an axis of the body, the cutting face including a circumferential concave portion, and an inner protrusion portion.
Public/Granted literature
- US20100084198A1 CUTTERS FOR FIXED CUTTER BITS Public/Granted day:2010-04-08
Information query
