发明名称 DRILLING APPARATUS WITH DRILL GUIDE
摘要 <p>An apparatus for use in connection using a drill having a drilling element for forming a borehole in a face of a mine passage includes a drill guide for engaging the drilling element while permitting the drilling element to move toward the face for forming the borehole. The drill guide includes a keeper for keeping the drilling element in a desired position, which keeper is biased for pivoting movement upon the application of a manual force between an active position for capturing the drilling element and a retracted position for releasing the drilling element. A low profile drill guide is also disclosed, as is a guard for a drill guide, and also related methods.</p>
申请公布号 WO2013025973(A1) 申请公布日期 2013.02.21
申请号 WO2012US51305 申请日期 2012.08.17
申请人 J.H. FLETCHER & CO.;WILSON, HENRY, E.;FARRELL, SEAN, CASEY;ANDERSON, ROBERT, SHERWOOD;MCQUERREY, SEAN, JOSEPH 发明人 WILSON, HENRY, E.;FARRELL, SEAN, CASEY;ANDERSON, ROBERT, SHERWOOD;MCQUERREY, SEAN, JOSEPH
分类号 E21B19/18 主分类号 E21B19/18
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