公开(公告)号：US06206109B1

公开(公告)日：2001-03-27

申请号：US09204751

申请日：1998-12-02

申请人： David J. Monier ,  Francis E. Robinson

发明人： David J. Monier ,  Francis E. Robinson

IPC分类号： E21B506

CPC分类号： E21B7/28 ,  E21B7/201

摘要： An apparatus and method for trenchless, underground emplacement of man-sized product pipe between first and second shaft locations is disclosed. The apparatus comprises a pilot tube assembly having a pilot tube segment and a steering head mounted to the pilot tube segment. The steering head is configured to operatively guide the pilot tube assembly from the first shaft location to the second shaft location. The apparatus further comprises an intermediate sleeve assembly having an intermediate sleeve segment and an intermediate cutting head mountable to the pilot tube assembly and to the sleeve segment. The intermediate cutting head has a diameter substantially greater than the diameter of the pilot tube assembly and is configured to be operably guided by the pilot tube assembly. An enlarging assembly of the apparatus comprises a drive sleeve segment and an enlarging cutting head mounted to the intermediate sleeve assembly and to the drive sleeve segment. The enlarging cutting head has a diameter substantially larger than the diameter of the intermediate sleeve assembly and the drive sleeve segment. The enlarging cutting head and the drive sleeve segment are operably guidable by the intermediate sleeve assembly. A drive assembly successively advances the pilot tube assembly, the intermediate sleeve assembly, the trailing assembly, and product pipe from the first shaft location to the second shaft location.

摘要翻译： 公开了一种用于在第一和第二轴位置之间的人造管道的无开挖，地下放置的装置和方法。 该装置包括具有先导管段和安装到先导管段的转向头的先导管组件。 转向头构造成可操作地将先导管组件从第一轴位置引导到第二轴位置。 该装置还包括具有中间套筒段和可安装到先导管组件和套筒段的中间切割头的中间套筒组件。 中间切割头的直径基本上大于先导管组件的直径，并被构造成由导向管组件可操作地引导。 装置的扩大组件包括驱动套筒段和安装到中间套筒组件和驱动套筒段上的放大切割头。 扩大的切割头的直径基本上大于中间套筒组件和驱动套筒段的直径。 扩大的切割头和驱动套筒段由中间套筒组件可操作地引导。 驱动组件将先导管组件，中间套筒组件，后组件和产品管道从第一轴位置连续地推进到第二轴位置。

公开(公告)号：US06726264B2

公开(公告)日：2004-04-27

申请号：US10165694

申请日：2002-06-06

申请人： Francis E. Robinson

发明人： Francis E. Robinson

IPC分类号： A01B116

CPC分类号： A01B1/16

摘要： A garden and lawn weed extractor tool enables removal of the weed with minimal invasiveness to the soil or turf. The weed extractor tool utilizes a foot-operated depression feature to insert the tool blade into the soil, at an angle to horizontal near the weed root. The user then uses the tool as a lever to pivot the blade relative to the weed root, which loosens the soil around the root and, hence, loosens the weed from the ground so that the weed is removable without carrying with it a large clump of soil. A spring-assisted soil retainer device and self-cleaning mechanism wipes or scrapes the tool blade as the tool is removed from the ground, and, in doing so, retains most of the soil in place at or near its original location. The tool, therefore, tends to prevent disruption to the garden and turf area, leaves each weed-removal site neat and miminally-disturbed, and keeps the tool blade clean for smooth and quick insertion at the next weed-site.

摘要翻译： 花园和草坪除草机工具能够以最小的侵入土壤或草坪去除杂草。 杂草提取器工具利用脚踏式凹陷特征将工具刀片插入土壤中，与杂草根部的水平方向成一定角度。 使用者然后使用该工具作为杠杆来使刀片相对于杂草根旋转，这使得根部周围的土壤松动，从而使杂草从地面松开，使得杂草是可移除的，而不携带大量的 泥。 弹簧辅助的土壤保持装置和自清洁机构在工具从地面上移除时擦拭或刮擦工具刀片，并且在这样做时，将大多数土壤保持在其原始位置处或附近的位置。 因此，该工具倾向于防止对花园和草皮区域的破坏，使每个除杂部位整齐地并且受到模拟干扰，并保持刀片清洁，以便在下一个杂草地点顺利快速地插入。