Free corer |
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| 申请号 | US7474060 | 申请日 | 1960-12-08 | 公开(公告)号 | US3078931A | 公开(公告)日 | 1963-02-26 |
| 申请人 | MOORE DAVID G; | 发明人 | MOORE DAVID G; | ||||
| 摘要 | |||||||
| 权利要求 | 1. AN EARTH CORER COMPRISING IN COMBINATION WEIGHTED CORE CUTTING MEANS, MEANS SLIDABLY DISPOSED WITHIN SAID WEIGHTED CORE CUTTING MEANS FOR RECEIVING THE EARTH CORE CUT THEREBY, A FLOAT MEANS CONNECTED TO SAID EARTH CORE RECEIVING MEANS, AND LATCH MEANS INTER-CONNECTING SAID FLOAT MEANS AND SAID WEIGHTED CORE CUTTING MEANS FOR TIMELY LATCHING AND UNLATCHING SAME. |
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| 说明书全文 | |||||||
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