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1. 发明授权

US3709188A Ground marker device 失效
标题翻译：接地标记设备
公开(公告)号：US3709188A
公开(公告)日：1973-01-09
申请号：US3709188D
申请日：1971-02-01
申请人： COUPAR R
发明人： COUPAR R
IPC分类号： E01F9/011 , E01F9/013 , G01C15/06 , G01D21/00
CPC分类号： G01C15/06 , E01F9/677 , E01F9/685 , Y10S411/922 , Y10S411/969
摘要： A marker device having a casing which is inserted into a hole drilled into the surface of the ground. Hinged arms are unfolded and extended through slots in the casing to secure the device against withdrawal from the hole. A suitably colored plug may be fitted into the upper end of the casing to be visible above the surface. A number of such devices placed in a row at suitably spaced intervals define a permanently marked line appearing either at or near the level of the ground surface or projecting thereabove. The device is readily converted for use as an anchoring means for a post or the like.
摘要翻译：一种标记装置，其具有插入到钻进地面表面的孔中的壳体。铰接臂展开并延伸穿过外壳中的槽，以固定装置以防止从孔中退出。可以将合适的有色塞子装配到壳体的上端，以在表面上方可见。以合适间隔的间隔排成一行的多个这样的装置限定出现在地表面的水平面或附近突出的永久标记的线。该装置易于转换用作柱等的锚定装置。

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