发明名称 PIPE LIFTING AND HANDLING TOOL
摘要 A handling device useful for lifting and handling pipes includes as set of jaws for grasping a surface of the pipe. An upper jaw extends along an exterior pipe surface and a lower jaw extends along an interior pipe surface. A sidewall of the pipe is positioned within a gap between the upper and lower jaws. A handle attached to the set of jaws is used to angle the jaws relative to the side of the pipe, thereby causing the upper jaw to contact the exterior pipe surface, and the lower jaw to contact the interior pipe surface. A mechanical advantage is created that selectively secures the jaws to the pipe and allows handling of the device while maintaining control of the pipe. The upper and lower jaws may be at fixed orientations relative to each other, and the handling device may have few or no moving parts.
申请公布号 CA2794729(A1) 申请公布日期 2011.10.13
申请号 CA20112794729 申请日期 2011.03.03
申请人 LONGYEAR TM, INC. 发明人 HAMBLIN, KEVIN J.;LIGHT, TREVOR LYNDON
分类号 B25B13/50;B25B33/00;B65G7/12;B66F11/00 主分类号 B25B13/50
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