发明名称 |
MODULAR DART LAUNCHER WITH STATUS INDICATOR |
摘要 |
A dart launcher launches a dart by placing the dart within a launcher bore formed within a launcher body. The launcher body also defines a central bore coupled inline with a tubing string and in fluid communication with the launcher bore. The launcher bore is formed at an angle to the central bore. A release assembly is coupled to the launcher body and includes a release rod protruding into the launcher bore to selectively release the dart. A visual indicator assembly is coupled to the launcher body downstream from the release assembly and includes a flapper protruding into the launcher bore. The release assembly is actuated by the dart rotating the flapper to rotate an arm from a non-released position to a released position.
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申请公布号 |
US2013161005(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
US201113337985 |
申请日期 |
2011.12.27 |
申请人 |
YATES CHAD ERIC;HEDGE SHRIPAD;NARAYAN DINESH;VETCO GRAY INC. |
发明人 |
YATES CHAD ERIC;HEDGE SHRIPAD;NARAYAN DINESH |
分类号 |
E21B33/13 |
主分类号 |
E21B33/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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