发明申请
- 专利标题： Protector for rock bit seals
- 专利标题（中）： 石头密封件保护器
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申请号： US11524819申请日： 2006-09-21
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公开(公告)号： US20080073124A1公开(公告)日： 2008-03-27
- 发明人: Chih C. Lin
- 申请人： Chih C. Lin
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 主分类号： E21B10/22
- IPC分类号： E21B10/22
摘要：
An earth-boring bit has a bit body with a depending bearing pin and a cone rotatably mounted thereon. A seal seals between the bearing pin and the cone. An annular set of bristles is located adjacent at least part of the dynamic seal surface of the seal to protect the seal against debris.
公开/授权文献
- US07628231B2 Protector for rock bit seals 公开/授权日：2009-12-08
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