Rock drilling tool with improved conveying
    41.
    发明授权
    Rock drilling tool with improved conveying 有权
    岩石钻具具有改进的输送

    公开(公告)号:US06427789B1

    公开(公告)日:2002-08-06

    申请号:US09555841

    申请日:2000-08-08

    IPC分类号: E21B1722

    CPC分类号: E21B10/445

    摘要: The invention proposes a drilling tool, in particular rock-drilling tool for rotary and/or percussive operation, in which, for the purpose of improving the drilling properties, the drilling-dust discharge groove is subdivided into at least two discharge-groove sections, each section having its own drilling-dust-carrying surface.

    摘要翻译: 本发明提出了一种用于旋转和/或冲击式操作的钻具,特别是用于旋转和/或冲击式操作的钻孔工具,其中为了提高钻孔性能,钻屑排放槽被细分成至少两个排放槽部分, 每个部分具有自己的钻孔 - 尘埃携带表面。

    Annular bit having a center drill
    42.
    发明授权
    Annular bit having a center drill 失效
    环形钻头具有中心钻

    公开(公告)号:US5931614A

    公开(公告)日:1999-08-03

    申请号:US816801

    申请日:1997-03-19

    IPC分类号: B23B51/04 B28D1/04

    摘要: An annular bit (1) having an attachable center drill (6) is proposed, in which annular bit (1), on the one hand, reliable holding of the center drill (6) in the annular bit (1) is ensured and, in particular, distributions of the cutting segments (3) on the annular bit (1) differing from the 90.degree. symmetry are made possible. This is achieved according to the invention in that the center-drill holder (4) has at least one push-in pin (11) and the wall of the annular bit (1) has at least one recess (14, 15, 16) for accommodating the push-in pin (11), which pin and recess are formed in such a way that the push-in pin (11) is retained in the recess (14, 15, 16) in the axial direction relative to the annular-bit axis in the locked state of the center-drill holder (4).

    摘要翻译: 提出了一种具有可附接的中心钻(6)的环形钻头(1),其中确保了环形钻头(1)一方面可靠地保持中心钻头(6)在环形钻头(1)中, 特别地,可以使环形钻头(1)上的切割段(3)与90°对称不同的分布成为可能。 这是根据本发明实现的,因为中心钻头保持器(4)具有至少一个推入销(11),并且环形钻头(1)的壁具有至少一个凹部(14,15,16) 用于容纳推入销(11),该销和凹部形成为使得推入销(11)相对于环形件沿轴向方向被保持在凹部(14,15,16)中 - 位轴处于中心钻头保持架(4)的锁定状态。

    Human interleukin-8 analogs
    43.
    发明授权
    Human interleukin-8 analogs 失效
    人白细胞介素-8类似物

    公开(公告)号:US5665346A

    公开(公告)日:1997-09-09

    申请号:US244702

    申请日:1994-09-27

    摘要: The present invention provides human interleukin-8 (IL-8) analogs that are modified in the Glu4 Leu5 Arg6 region, and have a core structure corresponding to the IL-8 (7-51) sequence are provided. These neutrophil binding analogs display altered IL-8 activities that can be exploited for therapeutic and other purposes. Such antagonists include those in which, for example, the Leu5 and/or Arg6 residues are replaced, and in which the Glu4 and/or Leu5 residues are deleted. Also provided are biologically active human interleukin-8 (IL-8) analogs comprising a core sequence that includes IL-8 (1-51), IL-8 (3-51) or IL-8 (4-51). The invention also provides pharmaceutical compositions containing the aforementioned analogs.

    摘要翻译: PCT No.PCT / CA92 / 00528 Sec。 371日期:1994年9月27日 102(e)日期1994年9月27日PCT提交1992年12月3日PCT公布。 公开号WO93 / 11159 日期:1993年6月10日本发明提供了在Glu4 Leu5 Arg6区域中修饰并具有与IL-8(7-51)序列对应的核心结构的人白细胞介素-8(IL-8)类似物。 这些嗜中性粒细胞结合类似物显示可以用于治疗和其他目的的改变的IL-8活性。 这些拮抗剂包括其中例如Leu5和/或Arg6残基被置换,其中Glu4和/或Leu5残基被缺失的那些。 还提供了包含包含IL-8(1-51),IL-8(3-51)或IL-8(4-51)的核心序列的生物活性人白细胞介素-8(IL-8)类似物。 本发明还提供含有上述类似物的药物组合物。

    Rock drill
    44.
    发明授权
    Rock drill 失效
    摇滚钻

    公开(公告)号:US4924953A

    公开(公告)日:1990-05-15

    申请号:US341206

    申请日:1989-04-21

    申请人: Bernhard Moser

    发明人: Bernhard Moser

    IPC分类号: E21B10/40 E21B10/44

    摘要: A rock drill for rotary and/or percussive stress, in particular for use in percussion or hammer drilling machines, is proposed, which by its geometrical design makes improved efficiency and simplified production possible. For this purpose, the feed spiral 5 is designed alternately with horizontal feed sections 8,8' with a 0.degree. pitch, and adjoining lead sections 9,9', the respective feed sections assuming an angle of rotation of 90.degree. on the drilling tool.

    摘要翻译: 提出了一种用于旋转和/或冲击应力的凿岩机,特别是用于打击乐或锤击机器,其几何设计使得提高效率和简化生产成为可能。 为此,进给螺旋5交替地设计为具有0°间距的水平进给部分8,8'和相邻的引导部分9,9',各个进给部分在钻具上呈现90°的旋转角度 。