发明授权
- 专利标题： Wide groove roller cone bit
- 专利标题（中）： 宽槽辊锥头
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申请号： US11191379申请日： 2005-07-28
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公开(公告)号： US07628230B2公开(公告)日： 2009-12-08
- 发明人: Rudolf C. Pessier , James L. Overstreet , Robert J. Buske , Don Q. Nguyen
- 申请人： Rudolf C. Pessier , James L. Overstreet , Robert J. Buske , Don Q. Nguyen
- 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： E21B10/16
- IPC分类号： E21B10/16
摘要：
An earth boring bit has three cones, each cone being mounted for rotation about a cone axis while the bit rotates about a bit axis. An outer row and an adjacent row of cutting elements are integrally formed on each of the cones. Each of the cutting elements of the adjacent row on each of the cones has a crest extending perpendicular to a direction of rotation of the cone. Annular spaces are located between the outer row and the adjacent row on each of the cones. The annular space on one cone has a width that is less than the annular spaces on the other cones. The width of the narrowest annular space is greater than the width of the crests of the adjacent row.
公开/授权文献
- US20060027401A1 Wide groove roller cone bit 公开/授权日：2006-02-09
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