发明授权
- 专利标题： Combined drill screw with reamer
- 专利标题（中）： 带铰刀的组合钻螺丝
-
申请号： US265379申请日： 1994-06-23
-
公开(公告)号： US5499896A公开(公告)日： 1996-03-19
- 发明人: Robert S. Cafarelli
- 申请人： Robert S. Cafarelli
- 专利权人： Cafarelli; Robert S.
- 当前专利权人： Cafarelli; Robert S.
- 主分类号： F16B25/10
- IPC分类号： F16B25/10 ; F16B25/00
摘要：
The present invention is a drill screw including a shank having a head at one end, a drill bit at the other end and a threaded section therebetween. The threaded section and the drill bit are operatively adapted such that drilling with the bit is performed by torquing the shank in a rotational direction opposite to that used to screw the threaded section into a bore hole.
公开/授权文献
- US4886306A Starter 公开/授权日：1989-12-12
信息查询
