发明名称 Directional drill for railway drilling and method of using same
摘要 A directional drill for transport via rail tracks and railwheels associated with the directional drill to an operating location. The directional drill has a first frame associated with a set of pneumatic tires for movement of the directional drill onto and off of the tracks and, when removed from the tracks, for movement to the operating location. A second frame is rotatably attached to the first frame and allows the drilling configuration of the second frame to be more nearly horizontal relative to the first frame. Hydraulic lines move during drilling and are maintained in a predetermined configuration to reduce vibration and chaffing.
申请公布号 US6481510(B1) 申请公布日期 2002.11.19
申请号 US20000580736 申请日期 2000.05.26
申请人 360FIBER LTD, 发明人 DESMARAIS LIONEL CHARLES;STENE BERNIE A.
分类号 E21B7/02;E21B7/04;(IPC1-7):E21B7/04;E21B19/20;E21B3/02 主分类号 E21B7/02
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