发明名称 Portable drilling system
摘要 A manually portable drilling system for the purpose of drilling earth bore holes. The drilling system will accommodate a lightweight drill pipe for air or mud rotary drilling, auger, or with use of air hammer percussion tools. The drilling system includes a self-contained mast which is detachable from a support base table. The mast contains an internal traveling shuttle to which a power unit is attached. The shuttle is manually driven by a conventional two speed, reversible hand winch modified to allow both hoisting and pull down capabilities. A partially hollow, perforated quill is coupled to an output drive of the power unit and drill pipe. This drilling system may be set up or broken down in minutes and carried to areas inaccessible by conventional portable drilling machines.
申请公布号 US5199507(A) 申请公布日期 1993.04.06
申请号 US19920831773 申请日期 1992.02.05
申请人 WESTMORELAND, HARRY L. 发明人 WESTMORELAND, HARRY L.
分类号 E21B19/084 主分类号 E21B19/084
代理机构 代理人
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