发明公开
EP3390761A1 EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS
审中-公开
基本信息:
- 专利标题： EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS
- 申请号：EP16876749.9 申请日：2016-12-16
- 公开(公告)号：EP3390761A1 公开(公告)日：2018-10-24
- 发明人： JAIN, Jayesh, Rameshlal , VEMPATI, Chaitanya, K. , RICKS, Gregory, L. , BILEN, Juan, Miguel
- 申请人： Baker Hughes, a GE company, LLC
- 申请人地址： 17021 Aldine Westfield Houston, TX 77073 US
- 专利权人： Baker Hughes, a GE company, LLC
- 当前专利权人： Baker Hughes, a GE company, LLC
- 当前专利权人地址： 17021 Aldine Westfield Houston, TX 77073 US
- 代理机构： Dehns
- 优先权： US201514973282 20151217
- 国际公布： WO2017106605 20170622
- 主分类号： E21B10/42
- IPC分类号： E21B10/42 ; E21B10/43 ; E21B10/62
摘要：
A drill bit including a bit body and a pad. The pad extends from a retracted position to an extended position from a bit surface at a first rate and retracts from the extended position to a retracted position at a second rate that is less than the first rate.
IPC结构图谱:
| E | 固定建筑物 |
| --E21 | 土层或岩石的钻进；采矿 |
| ----E21B | 土层或岩石的钻进；从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
| ------E21B10/00 | 钻头 |
| --------E21B10/42 | .带有齿、刃或类似切削部件的旋转掘进型钻头，例如，叉形钻头、鱼尾钻头 |