Invention Grant
- Patent Title: Drill-string connector
- Patent Title (中): 钻柱连接器
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Application No.: US11703915Application Date: 2007-02-08
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Publication No.: US07690422B2Publication Date: 2010-04-06
- Inventor: George Swietlik , Robert Large
- Applicant: George Swietlik , Robert Large
- Applicant Address: GB Lowestoft
- Assignee: Pilot Drilling Control Limited
- Current Assignee: Pilot Drilling Control Limited
- Current Assignee Address: GB Lowestoft
- Agency: Osha • Liang LLP
- Priority: GB0602565.4 20060208
- Main IPC: E21B19/00
- IPC: E21B19/00 ; E21B21/10
Abstract:
A connector (10) which provides a fluid tight connection between a fluid supply and a drill-string (4), the connector (10) comprising a piston-rod (20) and a cylinder (15), the piston-rod (20) having a seal at or towards its free end which is adapted to sealingly engage the drill-string (4) when the piston-rod (20) is at least partially extended from the cylinder (15).
Public/Granted literature
- US20070181346A1 Drill-string connector Public/Granted day:2007-08-09
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