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1. 发明授权

US5056454A Utility locator 失效
标题翻译：实用定位器
公开(公告)号：US5056454A
公开(公告)日：1991-10-15
申请号：US369755
申请日：1989-06-22
申请人： Lance H. Turner
发明人： Lance H. Turner
IPC分类号： G01C15/02 , G09F11/04
CPC分类号： G09F11/04 , G01C15/02
摘要： A utility locator which is positioned on the surface, but which is capable of providing extensive information concerning the character and location of utility facilities, or other similar types of subsurface structures. More particularly, the present invention is capable of providing information at the surface concerning the type of facility located below ground, the depth at which it is buried, its precise location, and its drift or direction of travel. In one embodiment, the utility locator comprises a multiple piece assembly. The manner in which the pieces are assembled and the types of pieces used provide the desired information. In particular, a round center piece may be used which has inscribed on its surface an indication concerning the type of structure marked. A second piece contains a mark on its surface. This mark is positioned with respect to a third piece such that the drift of the underground line is identified. This is accomplished by inscribing on the surface of the third piece the points of the compass. Depth is also indicated in a manner similar to that in which drift is indicated. In one embodiment, the third piece also includes a series of depth indications around its circumference. A fourth piece is then provided whcih also contains a mark. The mark is aligned with the number which corresponds to the depth of the subsurface facility (such as in feet or meters).
摘要翻译：位于表面上的实用定位器，但能够提供关于公用事业设施的特征和位置以及其他相似类型的地下结构的广泛信息。更具体地，本发明能够提供关于位于地下的设施类型，其被埋置的深度，其精确位置及其漂移或行进方向的表面上的信息。在一个实施例中，实用定位器包括多件组件。组装的方式和使用的件的类型提供所需的信息。特别地，可以使用圆形中心件，其在其表面上刻有关于标记的结构类型的指示。第二部分在其表面上包含一个标记。该标记相对于第三块定位，使得识别出地下线的漂移。这是通过在第三块的表面上刻上罗盘的点来实现的。深度也以与指示漂移的方式相似的方式表示。在一个实施例中，第三件还包括围绕其圆周的一系列深度指示。然后提供第四件，也包含一个标记。标记与对应于地下设施深度（如英尺或米）的数字对齐。

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