发明名称 Magnetic retriever for well plunger
摘要 A device for removing and installing a plunger in a well head has a elongate rigid tube with a magnetic connector mechanism at it distal end for engaging the plunger during removal and installation of the plunger. A longitudinal opening or passage can be provided extending the entire longitudinal length of the rigid tube and magnetic connector mechanism. An elongate rod is positioned in the opening or passage so that the upper end of the rod can be moved downwardly to eject the lower end of the rod from the magnetic connector mechanism to thereby disconnect an attached plunger from the magnetic connector mechanism.
申请公布号 US2013126188(A1) 申请公布日期 2013.05.23
申请号 US201113373569 申请日期 2011.11.17
申请人 QUITBERG KEVIN B. 发明人 QUITBERG KEVIN B.
分类号 E21B41/00;B25J15/06 主分类号 E21B41/00
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