发明申请
- 专利标题: SPACER RING FOR ELASTOMERIC SEAL
- 专利标题(中): 弹性密封垫圈
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申请号: US12251000申请日: 2008-10-14
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公开(公告)号: US20100089657A1公开(公告)日: 2010-04-15
- 发明人: Chih Lin
- 申请人: Chih Lin
- 申请人地址: US TX Houston
- 专利权人: Baker Hughes, Inc.
- 当前专利权人: Baker Hughes, Inc.
- 当前专利权人地址: US TX Houston
- 主分类号: E21B10/22
- IPC分类号: E21B10/22
摘要:
A roller cone bit is provided that includes a companion ring positioned adjacent to the seal, wherein the companion ring is formed of a porous material that is compatible with the fluid lubricating the interface between the roller cone and the bearing pin.
公开/授权文献
- US07896109B2 Spacer ring for elastomeric seal 公开/授权日:2011-03-01
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