发明名称 CENTRALIZING DEVICE FOR AN ELONGATED BODY IN A MOUSE HOLE MACHINE
摘要 A centralizing device (1) for an elongated body (16) which is located in a mousehole machine (2), the centralizing device (1) being at the upper portion of the mousehole machine (2), and the centralizing device (1) being supported and rotatable around a substantially horizontal axis of rotation (22) extending through the opening (10) of the mousehole machine, and the centralizing device (1) including two centralizing bows (24) located on radially opposite sides of the axis of rotation (22).
申请公布号 US2010206562(A1) 申请公布日期 2010.08.19
申请号 US20070311010 申请日期 2007.08.24
申请人 NATIONAL OILWELL NORWAY AS 发明人 WEBB JONATHAN GARRICK
分类号 E21B19/24 主分类号 E21B19/24
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