发明申请
US20100089657A1 SPACER RING FOR ELASTOMERIC SEAL 有权
弹性密封垫圈

  • 专利标题: SPACER RING FOR ELASTOMERIC SEAL
  • 专利标题(中): 弹性密封垫圈
  • 申请号: US12251000
    申请日: 2008-10-14
  • 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
SPACER RING FOR ELASTOMERIC SEAL
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.
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