发明名称 Tool for servicing subterranean gate valves
摘要 The invention is directed to a tool for removing and replacing the operating nut on a subterranean gate at the bottom of a valve tile. The tool comprises an elongated threaded rod moveably mounted inside of an elongated outer tube and having a threaded nut secured to its upper end. A bifurcated member is affixed to the lower end of the rod. The bifurcated member is configured to fit easily underneath the operating nut for lifting the nut off of the valve stem. A nut retaining member is mounted to the lower end of the tube for holding a new operating nut on top of the bifurcated member during the replacement operation.
申请公布号 US6026550(A) 申请公布日期 2000.02.22
申请号 US19980095995 申请日期 1998.06.11
申请人 SILANO, PETER 发明人 SILANO, PETER
分类号 B25B13/48;B25B27/24;(IPC1-7):B23P19/04 主分类号 B25B13/48
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