发明名称 |
APPARATUS AND METHOD USED IN APPLYING COVERS TO NUCLEAR REACTOR VESSELS |
摘要 |
An externally & internally threaded tensioning nut(1) is turned on a stud(2) which attaches a cover to a nuclear reactor tank. The nut is turned by a striking roller(17) engaging its external circumference and rotated by a roller drive mechanism(19). The roller has external threads of the same profile as the external threads on the nut. No stress is exerted on the threads of the nut, and the nut can be unscrewed while the stud is being tightened onto the reactor vessel, thus reducing the time required.
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申请公布号 |
KR830000433(A) |
申请公布日期 |
1983.03.08 |
申请号 |
KR19790003335 |
申请日期 |
1979.09.26 |
申请人 |
ACIERS OUTILLAGES EQUIP COMP;FRANCE ETAT ARMEMENT |
发明人 |
BOUDET GEORGES;GIBERT PIERRE |
分类号 |
G21C13/02;(IPC1-7):G21C13/02 |
主分类号 |
G21C13/02 |
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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