发明授权
- 专利标题: Stripper rubber adapter
- 专利标题(中): 剥离橡胶适配器
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申请号: US10776325申请日: 2004-02-11
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公开(公告)号: US07174956B2公开(公告)日: 2007-02-13
- 发明人: John R. Williams , Charles T. Bishop
- 申请人: John R. Williams , Charles T. Bishop
- 代理商 Matthew E. Burr
- 主分类号: E21B33/068
- IPC分类号: E21B33/068
摘要:
A connector is provided for selectively connecting or disconnecting a stripper rubber to or from drilling head equipment such as a bearing assembly. A generally cylindrical adapter connected to the equipment defines a primary bore to accommodate a down hole tubular. One or more cam pin bores, adapted to house one ore more cam pins, are positioned radially around the adapter substantially parallel to the primary bore. One or more cam lock bores adapted to house one or more at least partially rotatable cam locks, are offset from the pin cam bores such that each cam pin bore partially intersects a corresponding cam lock bore to form an aperture through which the cam lock engages the cam pin. One or more cam pins are connected to the stripper rubber; and one or more at least partially rotatable cam locks housed in the cam lock bores of the adapter optionally engage or disengage the pin cams to respectively connect or disconnect the stripper rubber to or from the equipment.
公开/授权文献
- US20050173127A1 Stripper rubber adapter 公开/授权日:2005-08-11
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