发明名称 |
Apparatus and method for moving a ferromagnetic element |
摘要 |
A device and technique for placing and moving a ferromagnetic element in an annulus between coaxially arranged cylindrical tubes. The device includes an electromagnetic ram moved along the interior of a cylindrical tube. The movable ferromagnetic element is magnetically coupled to the electromagnetic ram and moved by magnetic force to a location in the annulus defined by the tubes and magnetically coupled to the electromagnetic ram for movement in and removal from the annulus.
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申请公布号 |
US2007237283(A1) |
申请公布日期 |
2007.10.11 |
申请号 |
US20050209902 |
申请日期 |
2005.08.23 |
申请人 |
PAYNE RON;PLUCKER CHRISTOPHER |
发明人 |
PAYNE RON;PLUCKER CHRISTOPHER |
分类号 |
G21C19/00 |
主分类号 |
G21C19/00 |
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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