Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit
    2.
    发明授权
    Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit 有权
    屋顶钻头,屋顶钻头体和用于屋顶钻头的硬质切削刀片

    公开(公告)号:US08002054B2

    公开(公告)日:2011-08-23

    申请号:US12321779

    申请日:2009-01-26

    IPC分类号: E21B10/62 E21B10/60

    摘要: A roof drill bit has an elongate roof drill bit body, which has a forward end and a rearward end. The roof drill bit body contains a slot at the forward end. The roof drill bit body contains a dust port wherein the dust port has a central longitudinal dust axis. The roof drill bit further has a hard insert received within the slot wherein the hard insert has a leading surface. The leading surface of the hard insert is rotationally forward of the central longitudinal dust axis of the dust port.

    摘要翻译: 屋顶钻头具有细长的顶部钻头体,其具有前端和后端。 顶部钻头主体在前端包含一个槽。 顶部钻头体包含灰尘口,其中灰尘口具有中心的纵向灰尘轴线。 屋顶钻头还具有容纳在槽内的硬质插入件,其中硬质插入件具有前表面。 硬质插入件的前表面旋转地在灰尘口的中心纵向灰尘轴线的前方。

    Novel core drill bit housing and core drill bit
    3.
    发明申请
    Novel core drill bit housing and core drill bit 审中-公开
    新型核心钻头外壳和钻头

    公开(公告)号:US20080296069A1

    公开(公告)日:2008-12-04

    申请号:US11809140

    申请日:2007-05-30

    申请人: Nikola Ljubic

    发明人: Nikola Ljubic

    摘要: The present invention is a drill bit for cutting holes in materials such as concrete comprising a cylindrical body having a leading edge, a top edge and a conical top plate. The top plate has an aperture about its center and is affixed to the top edge of the cylindrical body. A threaded nut having a shaped upper portion and a cylindrical shaped lower portion is affixed through the aperture of the top plate for connecting the bit to a drill. The leading edge is able to receive one or more cutting or abrasive pads for cutting concrete or stone.

    摘要翻译: 本发明是一种用于在诸如混凝土的材料中切割孔的钻头,其包括具有前缘,顶部边缘和锥形顶板的圆柱体。 顶板具有围绕其中心的孔,并且固定到圆柱体的顶部边缘。 具有形状上部和圆柱形下部的螺母通过顶板的孔固定,用于将钻头连接到钻头。 前缘能够接收一个或多个用于切割混凝土或石头的切割或磨料垫。

    Cutter blade
    4.
    发明申请
    Cutter blade 审中-公开
    切刀刀片

    公开(公告)号:US20070201958A1

    公开(公告)日:2007-08-30

    申请号:US11701093

    申请日:2007-02-01

    IPC分类号: B26D1/12

    摘要: The invention provides a cutter blade (4) adapted to be arranged in a milling drum (1) of a milling machine. The cutter blade (4) has an annular body (7), and peripheral teeth (8) arranged at the annular body (7). The teeth (8) have a tooth face (9) and a clearance face (10) which intersect at a cutting edge (11). The teeth (8) are alternately arranged such that the tooth face (9) of one tooth (8a) is oriented in one tangential direction and the tooth face (9) of a neighbouring tooth (8b) is oriented in an opposite tangential direction. Thus a more versatile cutter blade is provided.

    摘要翻译: 本发明提供一种适于布置在铣床的研磨鼓(1)中的切割刀片(4)。 切割刀片(4)具有环形体(7)和布置在环形体(7)处的周边齿(8)。 齿(8)具有在切削刃(11)处相交的齿面(9)和间隙面(10)。 齿(8)交替地布置成使得一个齿(8a)的齿面(9)在一个切线方向上定向,并且相邻齿(8b)的齿面(9)被定向成相反的切向 方向。 因此,提供了更通用的切割刀片。