Invention Grant
US08474879B2 Non threaded drill pipe connection 有权
无螺纹钻杆连接

  • Patent Title: Non threaded drill pipe connection
  • Patent Title (中): 无螺纹钻杆连接
  • Application No.: US13197217
    Application Date: 2011-08-03
  • Publication No.: US08474879B2
    Publication Date: 2013-07-02
  • Inventor: Derek F. Herrera
  • Applicant: Derek F. Herrera
  • Agent Richard A. Fagin
  • Priority: GB1014511.8 20100901
  • Main IPC: F16L39/00
  • IPC: F16L39/00
Non threaded drill pipe connection
Abstract:
A threadless connection for coupling segments of pipe longitudinally end to end includes a pin end having a groove for receiving therein a locking ring. A box end has a groove for receiving the locking ring therein when the pin end is inserted into the box end. The locking ring has an uncompressed diameter selected to exert lateral force on the groove in the box end when assembled to the pin end.
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