发明授权
- 专利标题： Steel tooth bit with scooped teeth profile
- 专利标题（中）： 钢齿钻头与勺齿配置文件
-
申请号： US12176825申请日： 2008-07-21
-
公开(公告)号： US07779937B2公开(公告)日： 2010-08-24
- 发明人: David K. Luce , Robert J. Buske
- 申请人： David K. Luce , Robert J. Buske
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Bracewell & Giuliani LLP
- 主分类号： E21B10/46
- IPC分类号： E21B10/46 ; E21B10/50
摘要：
An earth-boring bit has at least one steel tooth with a scoop-shaped profile. The scoop-shaped profile is formed by milling and hardfacing a tooth to have at least one flank with a concave profile. Additionally, the tooth may contain one flank with a concave profile and another with a convex profile. The centerline axis of the tooth may be moved to alter the angle between the flanks and the centerline to vary the manner in which the tooth engages the formation.
公开/授权文献
- US20100012384A1 Steel Tooth Bit With Scooped Teeth Profile 公开/授权日：2010-01-21
信息查询
