Rock bit and inserts with wear relief grooves
    3.
    发明授权
    Rock bit and inserts with wear relief grooves 有权
    岩石钻头和镶嵌有防滑沟槽

    公开(公告)号:US07686106B2

    公开(公告)日:2010-03-30

    申请号:US11619416

    申请日:2007-01-03

    IPC分类号: E21B10/08

    CPC分类号: E21B10/16 E21B10/50

    摘要: A rolling cone drill bit includes at least one cutter element comprising a base portion and a cutting portion extending from the base portion. The cutting portion includes a cutting surface with an apex defining an extension height and at least one rib extending from the apex toward the base portion. In addition, the at least one rib has a convex outer surface in profile view.

    摘要翻译: 滚动圆锥钻头包括至少一个切割元件,其包括基部和从基部延伸的切割部。 切割部分包括具有限定延伸高度的顶点的切割表面和从顶点朝向基部延伸的至少一个肋。 此外,至少一个肋在轮廓图中具有凸形的外表面。

    Rock Bit and Inserts With Wear Relief Grooves
    4.
    发明申请
    Rock Bit and Inserts With Wear Relief Grooves 有权
    岩石钻头和刀片与磨损沟槽

    公开(公告)号:US20080156542A1

    公开(公告)日:2008-07-03

    申请号:US11619416

    申请日:2007-01-03

    IPC分类号: E21B10/08

    CPC分类号: E21B10/16 E21B10/50

    摘要: A rolling cone drill bit includes at least one cutter element comprising a base portion and a cutting portion extending from the base portion. The cutting portion includes a cutting surface with an apex defining an extension height and at least one rib extending from the apex toward the base portion. In addition, the at least one rib has a convex outer surface in profile view.

    摘要翻译: 滚动圆锥钻头包括至少一个切割元件,其包括基部和从基部延伸的切割部。 切割部分包括具有限定延伸高度的顶点的切割表面和从顶点朝向基部延伸的至少一个肋。 此外,至少一个肋在轮廓图中具有凸形的外表面。