发明名称 Method and apparatus for installing ground rods
摘要 A ground rod installation device and method as shown for pressing ground rods into the earth using hydraulic drilling equipment. The device has a plunger mechanism attachable to a Kelly Bar of the hydraulic drilling equipment utilizing a removable pin, a first cylindrical telescoping member through which the plunger is slidably attached, and a second telescoping member through which the first telescoping member is slidably attached. The ground rod is inserted into the fully extended telescoping members, placed above the desired location and driven into the ground without pre-drilling, pre-placing holes and in one substantially continuous drive stroke.
申请公布号 US5863154(A) 申请公布日期 1999.01.26
申请号 US19960726530 申请日期 1996.10.07
申请人 OLSEN, WILLIAM 发明人 OLSEN, WILLIAM
分类号 E02D7/10;(IPC1-7):E02D7/02 主分类号 E02D7/10
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