发明授权
- 专利标题： Rotary borer
- 专利标题（中）： 旋转钻孔机
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申请号： US732244申请日： 1996-10-25
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公开(公告)号： US5704438A公开(公告)日： 1998-01-06
- 发明人: Stephanus F. Kloppers , Richard G. Holtshausen , Noel G. Wright
- 申请人： Stephanus F. Kloppers , Richard G. Holtshausen , Noel G. Wright
- 申请人地址： PA Latrobe ZAX
- 专利权人： Kennametal Inc.,Kennametal South Africa (Proprietary) Limited
- 当前专利权人： Kennametal Inc.,Kennametal South Africa (Proprietary) Limited
- 当前专利权人地址： PA Latrobe ZAX
- 优先权： ZAX94/3040 19940503
- 主分类号： E21B10/42
- IPC分类号： E21B10/42 ; E21B10/54 ; E21B10/58 ; E21B10/62 ; E21B10/40
摘要：
A rotary borer has a body (10) mountable on a drill steel and one or more cutting tips (30) at a front of the body (10). Each tip (30) is tapered and is frictionally received in a corresponding tapered slot (22) in the body (10). The slot (22) has a trailing, rigid anvil surface (16), which extends almost to the extremity of the tip (30) to support the tip (30) and to locate it laterally, and a leading, resilient retaining surface (20) well shy of the extremity of the tip (30) to expose a portion of the tip. The tip (30) is readily replaceable. Release of the tip can be effected by heat or by means of taper drift (38) for which a transverse hole (37) is provided proximate a bottom of the slot (22).
公开/授权文献
- US4626195A Low load burning burner 公开/授权日：1986-12-02
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