DRILL BIT
    1.
    发明申请
    DRILL BIT 审中-公开
    钻头

    公开(公告)号:US20160273272A1

    公开(公告)日:2016-09-22

    申请号:US14652355

    申请日:2013-12-16

    摘要: A drill bit (26), the drill bit (26) comprising: a substantially tubular bit body (30) defining a body proximal end (32) and a substantially longitudinally opposed body distal end (34); a crown (38) extending from the bit body (30) at the body distal end (34), the crown (38) having a generally annular configuration defining crown inner and outer diameters (48 and 50); the crown (38) including a plurality of segments (46) provided between the crown inner and outer diameters (48 and 50), at least one of the segments (46) extending only partially radially across the crown (38) between the crown inner and outer diameters (48 and 50).

    摘要翻译: 钻头(26),所述钻头(26)包括:限定主体近端(32)和基本纵向相对的主体远端(34)的基本上管状的钻头体(30)。 冠部(38),其在所述身体远端(34)处从所述钻头体(30)延伸,所述冠部(38)具有限定冠部内外径(48和50)的大致环形构造; 所述冠部(38)包括设置在所述冠部内外直径(48和50)之间的多个段(46),所述段(46)中的至少一个仅部分径向延伸穿过所述冠内部 和外径(48和50)。