发明名称 |
A RELEASE VALVE USED IN AN INNER TUBE ASSEMBLY FOR USE WITH A CORE BARREL |
摘要 |
<p>An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body.</p> |
申请公布号 |
CA2902641(A1) |
申请公布日期 |
2014.09.04 |
申请号 |
CA20142902641 |
申请日期 |
2014.02.11 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
BACK, GORAN |
分类号 |
E21B34/10;E21B10/02;E21B25/02 |
主分类号 |
E21B34/10 |
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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